<?xml version="1.0" encoding="UTF-8"?>
<metadata>
  <identifier>2f726563697065732f30342d746573</identifier>
  <mediatype>movies</mediatype>
  <collection>fringe</collection>
  <collection>loggedin</collection>
  <collection>no-preview</collection>
  <description>Sources: multiple URLs&lt;br /&gt;&lt;br /&gt;These files were stored at the following locations according to Linux: "[My Passport 25E2, 8430F302-178B-4501-B793-820CD63E9293; https://archive.org/details/4d616769636b2f64656661756c740d - +info]" &gt;&lt;br /&gt;* "/media/ubuntu/My Passport/Movies/Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous/Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4"&lt;br /&gt;* "/media/ubuntu/My Passport/1/0/temp5.mp4" - binary file which was was derived from multiple files&lt;br /&gt;* "/media/ubuntu/My Passport/1/0/zbrail.mp4" - derived from "Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4" via FFmpeg&lt;br /&gt;&lt;br /&gt;These files were stored at the following locations according to Microsoft Windows: "Volume in drive G is My Passport \ Volume Serial Number is 1093-F3E8" &gt;&lt;br /&gt;* "G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4" - MP4 file&lt;br /&gt;* "G:\1\0\temp5.mp4" - MP4 video file ("Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4" was not uploaded to this item by me)&lt;br /&gt;* "G:\1\0\zbrail.mp4" - regular file which was derived from one file&lt;br /&gt;&lt;br /&gt;Change tbn (whic might mean "time base number") so that both of them are "19184 tbn"? Then maybe the concat will work without artifacts. Update: yes.&lt;br /&gt;&lt;br /&gt;FFmpeg derive log with one or more duplicates (time taken = most of a day, but I did learn new things):&lt;br /&gt;&lt;pre&gt;C:\&gt;ffmpeg -i "G:\1\0\no81nq.mp4" -to 00:00:23 -c copy "G:\1\0\temp1.mp4" -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\no81nq.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : mp42&lt;br /&gt;    minor_version   : 0&lt;br /&gt;    compatible_brands: isommp42&lt;br /&gt;    creation_time   : 2021-02-14T23:16:56.000000Z&lt;br /&gt;  Duration: 00:01:34.04, start: 0.000000, bitrate: 613 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 482 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2021-02-14T23:16:56.000000Z&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2021-02-14T23:16:56.000000Z&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : mp42&lt;br /&gt;    minor_version   : 0&lt;br /&gt;    compatible_brands: isommp42&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 482 kb/s, 25 fps, 25 tbr, 12800 tbn, 12800 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2021-02-14T23:16:56.000000Z&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2021-02-14T23:16:56.000000Z&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (copy)&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;frame=  576 fps=0.0 q=-1.0 Lsize=    2783kB time=00:00:22.98 bitrate= 991.8kbits/s speed=2.3e+03x&lt;br /&gt;video:2404kB audio:360kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.689662%&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -hide_banner -i "temp1.mp4" -filter:v "crop=640:480:0:20" "temp2.mp4" -y&lt;br /&gt;temp1.mp4: No such file or directory&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -hide_banner -i "G:\1\0\temp1.mp4" -filter:v "crop=640:480:0:20" "G:\1\0\temp2.mp4" -y&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 986 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 854 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 000000000037aa80] using SAR=1/1&lt;br /&gt;[libx264 @ 000000000037aa80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 000000000037aa80] profile High, level 3.0, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 000000000037aa80] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame=  578 fps= 32 q=-1.0 Lsize=    2149kB time=00:00:23.01 bitrate= 765.0kbits/s dup=2 drop=0 speed=1.28x&lt;br /&gt;video:1891kB audio:238kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.935257%&lt;br /&gt;[libx264 @ 000000000037aa80] frame I:10    Avg QP:20.28  size: 12052&lt;br /&gt;[libx264 @ 000000000037aa80] frame P:215   Avg QP:23.25  size:  5331&lt;br /&gt;[libx264 @ 000000000037aa80] frame B:353   Avg QP:26.06  size:  1894&lt;br /&gt;[libx264 @ 000000000037aa80] consecutive B-frames:  9.9% 20.4% 17.1% 52.6%&lt;br /&gt;[libx264 @ 000000000037aa80] mb I  I16..4: 17.6% 66.8% 15.7%&lt;br /&gt;[libx264 @ 000000000037aa80] mb P  I16..4:  5.4% 17.7%  2.4%  P16..4: 29.9% 10.8%  4.4%  0.0%  0.0%    skip:29.4%&lt;br /&gt;[libx264 @ 000000000037aa80] mb B  I16..4:  0.7%  2.0%  0.4%  B16..8: 30.7%  5.8%  0.8%  direct: 1.9%  skip:57.6%  L0:45.6% L1:49.9% BI: 4.5%&lt;br /&gt;[libx264 @ 000000000037aa80] 8x8 transform intra:68.2% inter:66.2%&lt;br /&gt;[libx264 @ 000000000037aa80] coded y,uvDC,uvAC intra: 50.3% 44.2% 8.1% inter: 12.3% 8.7% 0.1%&lt;br /&gt;[libx264 @ 000000000037aa80] i16 v,h,dc,p: 31% 27%  8% 34%&lt;br /&gt;[libx264 @ 000000000037aa80] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 24% 16%  4%  4%  5%  5%  5%  6%&lt;br /&gt;[libx264 @ 000000000037aa80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 31% 12%  5%  7%  5%  9%  6%  7%&lt;br /&gt;[libx264 @ 000000000037aa80] i8c dc,h,v,p: 62% 16% 17%  5%&lt;br /&gt;[libx264 @ 000000000037aa80] Weighted P-Frames: Y:7.4% UV:5.1%&lt;br /&gt;[libx264 @ 000000000037aa80] ref P L0: 73.6% 16.1%  7.7%  2.5%  0.1%&lt;br /&gt;[libx264 @ 000000000037aa80] ref B L0: 92.5%  6.4%  1.2%&lt;br /&gt;[libx264 @ 000000000037aa80] ref B L1: 98.5%  1.5%&lt;br /&gt;[libx264 @ 000000000037aa80] kb/s:669.65&lt;br /&gt;[aac @ 000000000036de00] Qavg: 23247.461&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -hide_banner -i "G:\1\0\temp1.mp4" -filter:v "crop=660:660:0:60" -c:a copy "G:\1\0\temp2.mp4" -y&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 986 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 854 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000001301c0] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000001301c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000001301c0] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000001301c0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 660x660 [SAR 1:1 DAR 1:1], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;frame=  578 fps= 27 q=-1.0 Lsize=    3126kB time=00:00:23.00 bitrate=1113.5kbits/s dup=2 drop=0 speed=1.09x&lt;br /&gt;video:2747kB audio:360kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.641641%&lt;br /&gt;[libx264 @ 00000000001301c0] frame I:8     Avg QP:20.19  size: 18529&lt;br /&gt;[libx264 @ 00000000001301c0] frame P:202   Avg QP:23.17  size:  8164&lt;br /&gt;[libx264 @ 00000000001301c0] frame B:368   Avg QP:25.99  size:  2757&lt;br /&gt;[libx264 @ 00000000001301c0] consecutive B-frames:  6.4% 19.0% 21.3% 53.3%&lt;br /&gt;[libx264 @ 00000000001301c0] mb I  I16..4: 15.0% 68.5% 16.5%&lt;br /&gt;[libx264 @ 00000000001301c0] mb P  I16..4:  5.7% 20.3%  3.0%  P16..4: 28.4% 10.3%  4.1%  0.0%  0.0%    skip:28.2%&lt;br /&gt;[libx264 @ 00000000001301c0] mb B  I16..4:  0.9%  2.8%  0.6%  B16..8: 29.0%  5.5%  0.8%  direct: 2.1%  skip:58.4%  L0:44.5% L1:51.0% BI: 4.5%&lt;br /&gt;[libx264 @ 00000000001301c0] 8x8 transform intra:68.9% inter:68.1%&lt;br /&gt;[libx264 @ 00000000001301c0] coded y,uvDC,uvAC intra: 47.6% 44.3% 7.7% inter: 11.8% 9.1% 0.2%&lt;br /&gt;[libx264 @ 00000000001301c0] i16 v,h,dc,p: 31% 29%  8% 32%&lt;br /&gt;[libx264 @ 00000000001301c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 24% 16%  4%  4%  5%  5%  5%  5%&lt;br /&gt;[libx264 @ 00000000001301c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 32% 12%  5%  6%  5%  7%  5%  5%&lt;br /&gt;[libx264 @ 00000000001301c0] i8c dc,h,v,p: 61% 16% 18%  5%&lt;br /&gt;[libx264 @ 00000000001301c0] Weighted P-Frames: Y:6.9% UV:5.0%&lt;br /&gt;[libx264 @ 00000000001301c0] ref P L0: 72.1% 16.2%  8.3%  3.3%  0.1%&lt;br /&gt;[libx264 @ 00000000001301c0] ref B L0: 91.8%  7.0%  1.2%&lt;br /&gt;[libx264 @ 00000000001301c0] ref B L1: 98.4%  1.6%&lt;br /&gt;[libx264 @ 00000000001301c0] kb/s:972.99&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -hide_banner -i "G:\1\0\temp1.mp4" -filter:v "crop=800:660:0:65" -c:a copy "G:\1\0\temp2.mp4" -y&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 986 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 854 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000003f01c0] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000003f01c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000003f01c0] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000003f01c0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 800x660 [SAR 1:1 DAR 40:33], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;frame=  578 fps= 26 q=-1.0 Lsize=    3594kB time=00:00:23.00 bitrate=1279.9kbits/s dup=2 drop=0 speed=1.05x&lt;br /&gt;video:3214kB audio:360kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.558599%&lt;br /&gt;[libx264 @ 00000000003f01c0] frame I:7     Avg QP:20.08  size: 23477&lt;br /&gt;[libx264 @ 00000000003f01c0] frame P:200   Avg QP:23.09  size:  9783&lt;br /&gt;[libx264 @ 00000000003f01c0] frame B:371   Avg QP:26.12  size:  3152&lt;br /&gt;[libx264 @ 00000000003f01c0] consecutive B-frames:  5.4% 20.4% 20.2% 54.0%&lt;br /&gt;[libx264 @ 00000000003f01c0] mb I  I16..4: 14.5% 66.6% 18.9%&lt;br /&gt;[libx264 @ 00000000003f01c0] mb P  I16..4:  5.6% 20.5%  2.8%  P16..4: 28.8% 10.5%  4.2%  0.0%  0.0%    skip:27.7%&lt;br /&gt;[libx264 @ 00000000003f01c0] mb B  I16..4:  0.8%  2.4%  0.5%  B16..8: 29.5%  5.3%  0.8%  direct: 2.0%  skip:58.8%  L0:44.0% L1:51.6% BI: 4.4%&lt;br /&gt;[libx264 @ 00000000003f01c0] 8x8 transform intra:69.5% inter:68.1%&lt;br /&gt;[libx264 @ 00000000003f01c0] coded y,uvDC,uvAC intra: 48.1% 43.4% 7.9% inter: 11.6% 8.6% 0.2%&lt;br /&gt;[libx264 @ 00000000003f01c0] i16 v,h,dc,p: 30% 29%  8% 33%&lt;br /&gt;[libx264 @ 00000000003f01c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 22% 16%  4%  5%  5%  5%  5%  5%&lt;br /&gt;[libx264 @ 00000000003f01c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 27% 12%  5%  7%  6%  8%  5%  6%&lt;br /&gt;[libx264 @ 00000000003f01c0] i8c dc,h,v,p: 61% 16% 18%  5%&lt;br /&gt;[libx264 @ 00000000003f01c0] Weighted P-Frames: Y:7.0% UV:5.0%&lt;br /&gt;[libx264 @ 00000000003f01c0] ref P L0: 72.2% 16.3%  8.3%  3.1%  0.1%&lt;br /&gt;[libx264 @ 00000000003f01c0] ref B L0: 92.2%  6.6%  1.3%&lt;br /&gt;[libx264 @ 00000000003f01c0] ref B L1: 98.4%  1.6%&lt;br /&gt;[libx264 @ 00000000003f01c0] kb/s:1138.53&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -hide_banner -i "G:\1\0\temp1.mp4" -filter:v "crop=1000:660:0:70" -c:a copy "G:\1\0\temp2.mp4" -y&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 986 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 854 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000005301c0] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000005301c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000005301c0] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000005301c0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1000x660 [SAR 1:1 DAR 50:33], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;frame=  578 fps= 19 q=-1.0 Lsize=    4326kB time=00:00:23.00 bitrate=1540.8kbits/s dup=2 drop=0 speed=0.736x&lt;br /&gt;video:3947kB audio:360kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.462588%&lt;br /&gt;[libx264 @ 00000000005301c0] frame I:6     Avg QP:19.77  size: 31377&lt;br /&gt;[libx264 @ 00000000005301c0] frame P:205   Avg QP:22.99  size: 11988&lt;br /&gt;[libx264 @ 00000000005301c0] frame B:367   Avg QP:26.02  size:  3800&lt;br /&gt;[libx264 @ 00000000005301c0] consecutive B-frames:  6.2% 20.4% 20.8% 52.6%&lt;br /&gt;[libx264 @ 00000000005301c0] mb I  I16..4: 13.9% 65.2% 20.8%&lt;br /&gt;[libx264 @ 00000000005301c0] mb P  I16..4:  5.2% 19.6%  2.6%  P16..4: 29.0% 10.5%  4.4%  0.0%  0.0%    skip:28.8%&lt;br /&gt;[libx264 @ 00000000005301c0] mb B  I16..4:  0.9%  2.4%  0.4%  B16..8: 29.4%  5.0%  0.8%  direct: 2.0%  skip:59.1%  L0:43.1% L1:52.4% BI: 4.5%&lt;br /&gt;[libx264 @ 00000000005301c0] 8x8 transform intra:69.9% inter:68.4%&lt;br /&gt;[libx264 @ 00000000005301c0] coded y,uvDC,uvAC intra: 47.6% 42.3% 7.6% inter: 11.6% 8.6% 0.2%&lt;br /&gt;[libx264 @ 00000000005301c0] i16 v,h,dc,p: 29% 30%  8% 33%&lt;br /&gt;[libx264 @ 00000000005301c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 23% 17%  4%  4%  5%  5%  5%  5%&lt;br /&gt;[libx264 @ 00000000005301c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 28% 12%  5%  7%  6%  9%  5%  5%&lt;br /&gt;[libx264 @ 00000000005301c0] i8c dc,h,v,p: 62% 16% 17%  5%&lt;br /&gt;[libx264 @ 00000000005301c0] Weighted P-Frames: Y:6.8% UV:4.9%&lt;br /&gt;[libx264 @ 00000000005301c0] ref P L0: 71.9% 17.0%  8.1%  3.0%  0.1%&lt;br /&gt;[libx264 @ 00000000005301c0] ref B L0: 91.5%  7.2%  1.3%&lt;br /&gt;[libx264 @ 00000000005301c0] ref B L1: 98.3%  1.7%&lt;br /&gt;[libx264 @ 00000000005301c0] kb/s:1398.12&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -hide_banner -i "G:\1\0\temp1.mp4" -filter:v "crop=1100:660:0:75" -c:a copy "G:\1\0\temp2.mp4" -y&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 986 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 854 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000005401c0] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000005401c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000005401c0] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000005401c0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1100x660 [SAR 1:1 DAR 5:3], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;frame=  578 fps= 19 q=-1.0 Lsize=    4623kB time=00:00:23.00 bitrate=1646.7kbits/s dup=2 drop=0 speed=0.77x&lt;br /&gt;video:4244kB audio:360kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.432031%&lt;br /&gt;[libx264 @ 00000000005401c0] frame I:6     Avg QP:19.74  size: 35039&lt;br /&gt;[libx264 @ 00000000005401c0] frame P:206   Avg QP:22.95  size: 12962&lt;br /&gt;[libx264 @ 00000000005401c0] frame B:366   Avg QP:26.00  size:  4002&lt;br /&gt;[libx264 @ 00000000005401c0] consecutive B-frames:  6.7% 19.4% 21.3% 52.6%&lt;br /&gt;[libx264 @ 00000000005401c0] mb I  I16..4: 13.6% 64.8% 21.6%&lt;br /&gt;[libx264 @ 00000000005401c0] mb P  I16..4:  5.1% 18.9%  2.5%  P16..4: 29.3% 10.8%  4.4%  0.0%  0.0%    skip:29.0%&lt;br /&gt;[libx264 @ 00000000005401c0] mb B  I16..4:  0.8%  2.3%  0.4%  B16..8: 29.3%  4.8%  0.7%  direct: 1.9%  skip:59.7%  L0:43.0% L1:52.6% BI: 4.4%&lt;br /&gt;[libx264 @ 00000000005401c0] 8x8 transform intra:69.8% inter:68.2%&lt;br /&gt;[libx264 @ 00000000005401c0] coded y,uvDC,uvAC intra: 47.6% 41.7% 7.5% inter: 11.6% 8.6% 0.2%&lt;br /&gt;[libx264 @ 00000000005401c0] i16 v,h,dc,p: 29% 30%  9% 33%&lt;br /&gt;[libx264 @ 00000000005401c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 22% 17%  4%  5%  5%  5%  5%  5%&lt;br /&gt;[libx264 @ 00000000005401c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 28% 12%  5%  7%  6%  9%  5%  6%&lt;br /&gt;[libx264 @ 00000000005401c0] i8c dc,h,v,p: 62% 16% 17%  5%&lt;br /&gt;[libx264 @ 00000000005401c0] Weighted P-Frames: Y:6.8% UV:4.9%&lt;br /&gt;[libx264 @ 00000000005401c0] ref P L0: 71.6% 17.4%  7.9%  3.0%  0.1%&lt;br /&gt;[libx264 @ 00000000005401c0] ref B L0: 91.4%  7.4%  1.2%&lt;br /&gt;[libx264 @ 00000000005401c0] ref B L1: 98.4%  1.6%&lt;br /&gt;[libx264 @ 00000000005401c0] kb/s:1503.47&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -hide_banner -i "G:\1\0\temp1.mp4" -filter:v "crop=1050:680:0:80" -c:a copy "G:\1\0\temp2.mp4" -y&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 986 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 854 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000003a01c0] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000003a01c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000003a01c0] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000003a01c0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1050x680 [SAR 1:1 DAR 105:68], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;frame=  578 fps= 20 q=-1.0 Lsize=    4489kB time=00:00:23.00 bitrate=1598.8kbits/s dup=2 drop=0 speed=0.777x&lt;br /&gt;video:4109kB audio:360kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.442938%&lt;br /&gt;[libx264 @ 00000000003a01c0] frame I:6     Avg QP:19.81  size: 34221&lt;br /&gt;[libx264 @ 00000000003a01c0] frame P:214   Avg QP:22.91  size: 11954&lt;br /&gt;[libx264 @ 00000000003a01c0] frame B:358   Avg QP:26.14  size:  4033&lt;br /&gt;[libx264 @ 00000000003a01c0] consecutive B-frames:  7.4% 20.8% 27.5% 44.3%&lt;br /&gt;[libx264 @ 00000000003a01c0] mb I  I16..4: 13.3% 64.6% 22.1%&lt;br /&gt;[libx264 @ 00000000003a01c0] mb P  I16..4:  4.9% 17.7%  2.2%  P16..4: 22.6% 15.2%  6.1%  0.0%  0.0%    skip:31.3%&lt;br /&gt;[libx264 @ 00000000003a01c0] mb B  I16..4:  0.8%  2.3%  0.4%  B16..8: 26.0%  7.7%  1.3%  direct: 2.2%  skip:59.2%  L0:42.9% L1:52.6% BI: 4.5%&lt;br /&gt;[libx264 @ 00000000003a01c0] 8x8 transform intra:69.5% inter:73.4%&lt;br /&gt;[libx264 @ 00000000003a01c0] coded y,uvDC,uvAC intra: 47.3% 45.7% 5.4% inter: 10.5% 8.8% 0.1%&lt;br /&gt;[libx264 @ 00000000003a01c0] i16 v,h,dc,p: 34% 26%  6% 33%&lt;br /&gt;[libx264 @ 00000000003a01c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 25% 17%  4%  4%  5%  5%  4%  5%&lt;br /&gt;[libx264 @ 00000000003a01c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 28% 11%  5%  8%  6%  9%  5%  6%&lt;br /&gt;[libx264 @ 00000000003a01c0] i8c dc,h,v,p: 60% 17% 19%  4%&lt;br /&gt;[libx264 @ 00000000003a01c0] Weighted P-Frames: Y:6.5% UV:4.7%&lt;br /&gt;[libx264 @ 00000000003a01c0] ref P L0: 73.1% 16.5%  7.6%  2.8%  0.0%&lt;br /&gt;[libx264 @ 00000000003a01c0] ref B L0: 92.5%  6.4%  1.1%&lt;br /&gt;[libx264 @ 00000000003a01c0] ref B L1: 98.5%  1.5%&lt;br /&gt;[libx264 @ 00000000003a01c0] kb/s:1455.81&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -hide_banner -i "G:\1\0\temp1.mp4" -filter:v "crop=1060:660:0:80" -c:a copy "G:\1\0\temp2.mp4" -y&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 986 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 854 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000005401c0] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000005401c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000005401c0] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000005401c0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1060x660 [SAR 1:1 DAR 53:33], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;frame=  578 fps= 20 q=-1.0 Lsize=    4529kB time=00:00:23.00 bitrate=1612.9kbits/s dup=2 drop=0 speed=0.803x&lt;br /&gt;video:4149kB audio:360kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.441470%&lt;br /&gt;[libx264 @ 00000000005401c0] frame I:6     Avg QP:19.72  size: 33579&lt;br /&gt;[libx264 @ 00000000005401c0] frame P:206   Avg QP:22.97  size: 12599&lt;br /&gt;[libx264 @ 00000000005401c0] frame B:366   Avg QP:26.04  size:  3964&lt;br /&gt;[libx264 @ 00000000005401c0] consecutive B-frames:  6.2% 20.8% 21.8% 51.2%&lt;br /&gt;[libx264 @ 00000000005401c0] mb I  I16..4: 14.1% 64.7% 21.2%&lt;br /&gt;[libx264 @ 00000000005401c0] mb P  I16..4:  5.2% 19.1%  2.6%  P16..4: 29.2% 10.5%  4.4%  0.0%  0.0%    skip:29.0%&lt;br /&gt;[libx264 @ 00000000005401c0] mb B  I16..4:  0.9%  2.5%  0.4%  B16..8: 29.3%  4.8%  0.7%  direct: 1.9%  skip:59.3%  L0:43.2% L1:52.3% BI: 4.5%&lt;br /&gt;[libx264 @ 00000000005401c0] 8x8 transform intra:69.3% inter:68.3%&lt;br /&gt;[libx264 @ 00000000005401c0] coded y,uvDC,uvAC intra: 47.2% 42.0% 7.5% inter: 11.6% 8.6% 0.2%&lt;br /&gt;[libx264 @ 00000000005401c0] i16 v,h,dc,p: 28% 31%  8% 32%&lt;br /&gt;[libx264 @ 00000000005401c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 24% 17%  4%  5%  5%  5%  5%  5%&lt;br /&gt;[libx264 @ 00000000005401c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 29% 12%  4%  7%  6%  9%  5%  5%&lt;br /&gt;[libx264 @ 00000000005401c0] i8c dc,h,v,p: 62% 16% 17%  5%&lt;br /&gt;[libx264 @ 00000000005401c0] Weighted P-Frames: Y:6.8% UV:4.9%&lt;br /&gt;[libx264 @ 00000000005401c0] ref P L0: 71.8% 17.3%  7.8%  3.0%  0.1%&lt;br /&gt;[libx264 @ 00000000005401c0] ref B L0: 91.1%  7.6%  1.3%&lt;br /&gt;[libx264 @ 00000000005401c0] ref B L1: 98.3%  1.7%&lt;br /&gt;[libx264 @ 00000000005401c0] kb/s:1469.85&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -hide_banner -i "G:\1\0\temp1.mp4" -filter:v "crop=1060:640:0:80" -c:a copy "G:\1\0\temp2.mp4" -y&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 986 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 854 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000005501c0] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000005501c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000005501c0] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000005501c0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1060x640 [SAR 1:1 DAR 53:32], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;frame=  578 fps= 20 q=-1.0 Lsize=    3742kB time=00:00:23.00 bitrate=1332.9kbits/s dup=2 drop=0 speed=0.813x&lt;br /&gt;video:3363kB audio:360kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.532627%&lt;br /&gt;[libx264 @ 00000000005501c0] frame I:6     Avg QP:19.30  size: 31218&lt;br /&gt;[libx264 @ 00000000005501c0] frame P:226   Avg QP:22.91  size: 10283&lt;br /&gt;[libx264 @ 00000000005501c0] frame B:346   Avg QP:25.64  size:  2692&lt;br /&gt;[libx264 @ 00000000005501c0] consecutive B-frames:  6.6% 31.8% 27.0% 34.6%&lt;br /&gt;[libx264 @ 00000000005501c0] mb I  I16..4: 16.4% 60.9% 22.7%&lt;br /&gt;[libx264 @ 00000000005501c0] mb P  I16..4:  6.0% 16.1%  2.5%  P16..4: 32.3%  9.3%  3.1%  0.0%  0.0%    skip:30.8%&lt;br /&gt;[libx264 @ 00000000005501c0] mb B  I16..4:  0.7%  1.4%  0.3%  B16..8: 28.1%  3.4%  0.4%  direct: 1.3%  skip:64.4%  L0:42.8% L1:53.4% BI: 3.8%&lt;br /&gt;[libx264 @ 00000000005501c0] 8x8 transform intra:64.3% inter:69.3%&lt;br /&gt;[libx264 @ 00000000005501c0] coded y,uvDC,uvAC intra: 45.0% 34.4% 3.6% inter: 8.4% 6.2% 0.0%&lt;br /&gt;[libx264 @ 00000000005501c0] i16 v,h,dc,p: 25% 28% 10% 37%&lt;br /&gt;[libx264 @ 00000000005501c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 27% 18%  3%  4%  4%  5%  4%  5%&lt;br /&gt;[libx264 @ 00000000005501c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 29% 13%  5%  7%  6%  8%  5%  5%&lt;br /&gt;[libx264 @ 00000000005501c0] i8c dc,h,v,p: 65% 17% 14%  4%&lt;br /&gt;[libx264 @ 00000000005501c0] Weighted P-Frames: Y:6.2% UV:4.4%&lt;br /&gt;[libx264 @ 00000000005501c0] ref P L0: 71.3% 18.5%  7.2%  2.9%  0.1%&lt;br /&gt;[libx264 @ 00000000005501c0] ref B L0: 89.0% 10.0%  1.0%&lt;br /&gt;[libx264 @ 00000000005501c0] ref B L1: 98.8%  1.2%&lt;br /&gt;[libx264 @ 00000000005501c0] kb/s:1191.24&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i "G:\1\0\4tt9f7.mp4" -vn -c:a copy "G:\1\0\temp.aac"&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\4tt9f7.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : mp42&lt;br /&gt;    minor_version   : 0&lt;br /&gt;    compatible_brands: isommp42&lt;br /&gt;    encoder         : Google&lt;br /&gt;  Duration: 00:02:30.93, start: 0.000000, bitrate: 2065 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 1934 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc.&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc.&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : mp42&lt;br /&gt;    minor_version   : 0&lt;br /&gt;    compatible_brands: isommp42&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:1 -&gt; #0:0 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;size=    2403kB time=00:02:30.90 bitrate= 130.4kbits/s speed=3.77e+03x&lt;br /&gt;video:0kB audio:2358kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.884156%&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -af "volume=enable='between(t,0,20)':volume=0" G:\1\0\temp1.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 00000000004fa640] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp1.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2035kB time=00:02:30.92 bitrate= 110.5kbits/s speed=43.7x&lt;br /&gt;video:0kB audio:1991kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.232046%&lt;br /&gt;[aac @ 00000000004fd2c0] Qavg: 10896.645&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -af "volume=enable='between(t,0,17)':volume=0" G:\1\0\temp1.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000054a640] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp1.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2082kB time=00:02:30.92 bitrate= 113.0kbits/s speed=49.3x&lt;br /&gt;video:0kB audio:2038kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.180817%&lt;br /&gt;[aac @ 000000000054d2c0] Qavg: 9630.636&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.aac -filter:a "volume=2.0" G:\1\0\temp2.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000055a580] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp1.aac':&lt;br /&gt;  Duration: 01:03:29.20, bitrate: 4 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 4 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp2.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2083kB time=00:02:30.95 bitrate= 113.0kbits/s speed=  48x&lt;br /&gt;video:0kB audio:2038kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.180619%&lt;br /&gt;[aac @ 000000000055d200] Qavg: 9535.773&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -i G:\1\0\temp2.aac G:\1\0\temp1.mkv&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000050a680] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;[aac @ 00000000005316c0] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #1, aac, from 'G:\1\0\temp2.aac':&lt;br /&gt;  Duration: 01:03:30.13, bitrate: 4 kb/s&lt;br /&gt;    Stream #1:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 4 kb/s&lt;br /&gt;File 'G:\1\0\temp1.mkv' already exists. Overwrite? [y/N] y&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; vorbis (libvorbis))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, matroska, to 'G:\1\0\temp1.mkv':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: vorbis (libvorbis) (oV[0][0] / 0x566F), 44100 Hz, stereo, fltp&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 libvorbis&lt;br /&gt;size=    1564kB time=00:02:30.91 bitrate=  84.9kbits/s speed=33.6x&lt;br /&gt;video:0kB audio:1493kB subtitle:0kB other streams:0kB global headers:4kB muxing overhead: 4.734464%&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.aac -filter:a "volume=5.0" G:\1\0\temp2.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000052a580] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp1.aac':&lt;br /&gt;  Duration: 01:03:29.20, bitrate: 4 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 4 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp2.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2082kB time=00:02:30.95 bitrate= 113.0kbits/s speed=49.1x&lt;br /&gt;video:0kB audio:2038kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.181014%&lt;br /&gt;[aac @ 000000000052d200] Qavg: 9531.659&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.aac -af bass=g=8 G:\1\0\temp2.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000052a580] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp1.aac':&lt;br /&gt;  Duration: 01:03:29.20, bitrate: 4 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 4 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp2.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2082kB time=00:02:30.95 bitrate= 113.0kbits/s speed=44.9x&lt;br /&gt;video:0kB audio:2038kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.180894%&lt;br /&gt;[aac @ 000000000052d200] Qavg: 9594.917&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.aac -af bass=g=30 G:\1\0\temp2.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 00000000003ba580] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp1.aac':&lt;br /&gt;  Duration: 01:03:29.20, bitrate: 4 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 4 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp2.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2082kB time=00:02:30.95 bitrate= 113.0kbits/s speed=45.1x&lt;br /&gt;video:0kB audio:2038kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.180926%&lt;br /&gt;[aac @ 00000000003bd200] Qavg: 9620.851&lt;br /&gt;&lt;br /&gt;C:\&gt;echo dl https://audiotrimmer.com/download.php?file=temp-[AudioTrimmer.com].aac&amp;date=10&lt;br /&gt;dl https://audiotrimmer.com/download.php?file=temp-[AudioTrimmer.com].aac&lt;br /&gt;The system cannot accept the date entered.&lt;br /&gt;Enter the new date: (mm-dd-yy)&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.aac -af "volume=enable='between(t,0,17)':volume=0" G:\1\0\temp2.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 00000000004fa680] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp1.aac':&lt;br /&gt;  Duration: 00:02:29.02, bitrate: 128 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp2.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2085kB time=00:02:30.95 bitrate= 113.1kbits/s speed=46.4x&lt;br /&gt;video:0kB audio:2040kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.178507%&lt;br /&gt;[aac @ 00000000004fd300] Qavg: 9515.708&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -i G:\1\0\temp2.aac G:\1\0\temp1.mkv&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000011a680] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;[aac @ 00000000001416c0] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #1, aac, from 'G:\1\0\temp2.aac':&lt;br /&gt;  Duration: 01:03:33.74, bitrate: 4 kb/s&lt;br /&gt;    Stream #1:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 4 kb/s&lt;br /&gt;File 'G:\1\0\temp1.mkv' already exists. Overwrite? [y/N] y&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; vorbis (libvorbis))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, matroska, to 'G:\1\0\temp1.mkv':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: vorbis (libvorbis) (oV[0][0] / 0x566F), 44100 Hz, stereo, fltp&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 libvorbis&lt;br /&gt;size=    1564kB time=00:02:30.91 bitrate=  84.9kbits/s speed=32.4x&lt;br /&gt;video:0kB audio:1493kB subtitle:0kB other streams:0kB global headers:4kB muxing overhead: 4.734464%&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -i G:\1\0\temp2.aac -filter_complex amerge=inputs=2 -ac 2 G:\1\0\temp1.aac&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 00000000003cba40] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;[aac @ 00000000003f1a40] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #1, aac, from 'G:\1\0\temp2.aac':&lt;br /&gt;  Duration: 01:03:33.74, bitrate: 4 kb/s&lt;br /&gt;    Stream #1:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 4 kb/s&lt;br /&gt;File 'G:\1\0\temp1.aac' already exists. Overwrite? [y/N] y&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (aac) -&gt; amerge:in0&lt;br /&gt;  Stream #1:0 (aac) -&gt; amerge:in1&lt;br /&gt;  amerge -&gt; Stream #0:0 (aac)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[Parsed_amerge_0 @ 00000000025f4840] No channel layout for input 1&lt;br /&gt;[Parsed_amerge_0 @ 00000000025f4840] Input channel layouts overlap: output layout will be determined by the number of distinct input channels&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp1.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2339kB time=00:02:30.92 bitrate= 126.9kbits/s speed=39.6x&lt;br /&gt;video:0kB audio:2294kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.937003%&lt;br /&gt;[aac @ 000000000040e4c0] Qavg: 2368.249&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -af "volume=enable='between(t,17,150)':volume=5.0" G:\1\0\temp1.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 00000000003da680] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp1.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2339kB time=00:02:30.92 bitrate= 127.0kbits/s speed=45.3x&lt;br /&gt;video:0kB audio:2295kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.936764%&lt;br /&gt;[aac @ 00000000003dd300] Qavg: 2394.043&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -af "volume=enable='between(t,17,150)':volume=20.0" G:\1\0\temp1.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000048a6c0] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp1.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2341kB time=00:02:30.92 bitrate= 127.1kbits/s speed=45.2x&lt;br /&gt;video:0kB audio:2297kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.934848%&lt;br /&gt;[aac @ 000000000048d340] Qavg: 2382.924&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -af "volume=enable='between(t,17,150)':volume=70dB" G:\1\0\temp1.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000011a6c0] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp1.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2327kB time=00:02:30.92 bitrate= 126.3kbits/s speed=23.9x&lt;br /&gt;video:0kB audio:2282kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.947048%&lt;br /&gt;[aac @ 000000000011d340] Qavg: 2377.476&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.aac -filter:a loudnorm G:\1\0\temp2.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000044a580] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp1.aac':&lt;br /&gt;  Duration: 00:02:18.32, bitrate: 137 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 137 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp2.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 96000 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2490kB time=00:02:30.95 bitrate= 135.1kbits/s speed=4.44x&lt;br /&gt;video:0kB audio:2394kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 4.042086%&lt;br /&gt;[aac @ 000000000044d200] Qavg: 21392.248&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -af "volume=enable='between(t,17,150)':volume=6.0" G:\1\0\temp1.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 00000000004aa680] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp1.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2339kB time=00:02:30.92 bitrate= 127.0kbits/s speed=44.3x&lt;br /&gt;video:0kB audio:2295kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.936797%&lt;br /&gt;[aac @ 00000000004ad300] Qavg: 2393.390&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.aac -filter:a loudnorm G:\1\0\temp2.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000050a580] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp1.aac':&lt;br /&gt;  Duration: 00:02:19.04, bitrate: 137 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 137 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp2.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 96000 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2396kB time=00:02:30.95 bitrate= 130.0kbits/s speed=7.66x&lt;br /&gt;video:0kB audio:2299kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 4.208570%&lt;br /&gt;[aac @ 000000000050d200] Qavg: 2484.656&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.aac -filter:a loudnorm=offset:20 G:\1\0\temp2.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000051a580] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp1.aac':&lt;br /&gt;  Duration: 00:02:19.04, bitrate: 137 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 137 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[loudnorm @ 0000000000555580] [Eval @ 000000000027da60] Undefined constant or missing '(' in 'offset'&lt;br /&gt;[loudnorm @ 0000000000555580] Unable to parse option value "offset"&lt;br /&gt;[loudnorm @ 0000000000555580] [Eval @ 000000000027da70] Undefined constant or missing '(' in 'offset'&lt;br /&gt;[loudnorm @ 0000000000555580] Unable to parse option value "offset"&lt;br /&gt;[loudnorm @ 0000000000555580] Error setting option I to value offset.&lt;br /&gt;[Parsed_loudnorm_0 @ 0000000000555180] Error applying options to the filter.&lt;br /&gt;[AVFilterGraph @ 000000000051e0c0] Error initializing filter 'loudnorm' with args 'offset:20'&lt;br /&gt;Error reinitializing filters!&lt;br /&gt;Failed to inject frame into filter network: Invalid argument&lt;br /&gt;Error while processing the decoded data for stream #0:0&lt;br /&gt;Conversion failed!&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.aac -filter:a loudnorm=offset=20 G:\1\0\temp2.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000047a580] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp1.aac':&lt;br /&gt;  Duration: 00:02:19.04, bitrate: 137 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 137 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp2.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 96000 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2396kB time=00:02:30.95 bitrate= 130.0kbits/s speed=7.79x&lt;br /&gt;video:0kB audio:2300kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 4.207112%&lt;br /&gt;[aac @ 000000000047d200] Qavg: 2354.322&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -af bass=g=20 -af treble=g=20 G:\1\0\temp2.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000034a680] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;Multiple -filter, -af or -vf options specified for stream 0, only the last option '-filter:a treble=g=20' will be used.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp2.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2338kB time=00:02:30.92 bitrate= 126.9kbits/s speed=41.2x&lt;br /&gt;video:0kB audio:2293kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.937834%&lt;br /&gt;[aac @ 000000000034d2c0] Qavg: 2432.894&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -af "bass=g=20;treble=g=20" G:\1\0\temp2.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000063a580] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Simple filtergraph 'bass=g=20;treble=g=20' was expected to have exactly 1 input and 1 output. However, it had &gt;1 input(s) and &gt;1 output(s). Please adjust, or use a complex filtergraph (-filter_complex) instead.&lt;br /&gt;Error reinitializing filters!&lt;br /&gt;Failed to inject frame into filter network: Invalid argument&lt;br /&gt;Error while processing the decoded data for stream #0:0&lt;br /&gt;Conversion failed!&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac treble=g=20 G:\1\0\temp2.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 00000000003ba6c0] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;[NULL @ 00000000003e16c0] Unable to find a suitable output format for 'treble=g=20'&lt;br /&gt;treble=g=20: Invalid argument&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -af treble=g=20 G:\1\0\temp2.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 00000000004da580] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp2.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2338kB time=00:02:30.92 bitrate= 126.9kbits/s speed=43.4x&lt;br /&gt;video:0kB audio:2293kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.937834%&lt;br /&gt;[aac @ 00000000004dd200] Qavg: 2432.894&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp2.aac -af bass=g=20 G:\1\0\temp1.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 00000000003fa580] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp2.aac':&lt;br /&gt;  Duration: 00:02:24.00, bitrate: 132 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 132 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp1.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2340kB time=00:02:30.95 bitrate= 127.0kbits/s speed=42.5x&lt;br /&gt;video:0kB audio:2295kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.936482%&lt;br /&gt;[aac @ 00000000003fd200] Qavg: 2424.810&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -af treble=g=40 G:\1\0\temp2.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000053a580] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp2.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2342kB time=00:02:30.92 bitrate= 127.1kbits/s speed=43.5x&lt;br /&gt;video:0kB audio:2298kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.934124%&lt;br /&gt;[aac @ 000000000053d200] Qavg: 2381.180&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp2.aac -af bass=g=20 G:\1\0\temp1.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 00000000005fa580] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp2.aac':&lt;br /&gt;  Duration: 00:02:33.84, bitrate: 124 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 124 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp1.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2342kB time=00:02:30.95 bitrate= 127.1kbits/s speed=41.9x&lt;br /&gt;video:0kB audio:2297kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.934668%&lt;br /&gt;[aac @ 00000000005fd200] Qavg: 2380.675&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -af treble=g=20 G:\1\0\temp2.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000045a580] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp2.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2338kB time=00:02:30.92 bitrate= 126.9kbits/s speed=43.5x&lt;br /&gt;video:0kB audio:2293kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.937834%&lt;br /&gt;[aac @ 000000000045d200] Qavg: 2432.894&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp2.aac -af bass=g=20 G:\1\0\temp1.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000011a580] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp2.aac':&lt;br /&gt;  Duration: 00:02:24.00, bitrate: 132 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 132 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp1.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2340kB time=00:02:30.95 bitrate= 127.0kbits/s speed=42.3x&lt;br /&gt;video:0kB audio:2295kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.936482%&lt;br /&gt;[aac @ 000000000011d200] Qavg: 2424.810&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -af "volume=enable='between(t,17,150)':volume=-20dB" G:\1\0\temp1.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000063a6c0] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp1.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2331kB time=00:02:30.92 bitrate= 126.5kbits/s speed=46.3x&lt;br /&gt;video:0kB audio:2286kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.943793%&lt;br /&gt;[aac @ 000000000063d340] Qavg: 2800.167&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -af "volumedetect" -f null NUL&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000054a540] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; pcm_s16le (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, null, to 'NUL':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 pcm_s16le&lt;br /&gt;size=N/A time=00:02:30.92 bitrate=N/A speed= 495x&lt;br /&gt;video:0kB audio:26000kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown&lt;br /&gt;[Parsed_volumedetect_0 @ 000000000056de40] n_samples: 13312000&lt;br /&gt;[Parsed_volumedetect_0 @ 000000000056de40] mean_volume: -9.7 dB&lt;br /&gt;[Parsed_volumedetect_0 @ 000000000056de40] max_volume: -0.6 dB&lt;br /&gt;[Parsed_volumedetect_0 @ 000000000056de40] histogram_0db: 38&lt;br /&gt;[Parsed_volumedetect_0 @ 000000000056de40] histogram_1db: 694&lt;br /&gt;[Parsed_volumedetect_0 @ 000000000056de40] histogram_2db: 515960&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -af "equalizer=f=1000:width_type=h:width=200:g=-10" G:\1\0\temp1.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000042a6c0] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp1.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2337kB time=00:02:30.92 bitrate= 126.8kbits/s speed=43.1x&lt;br /&gt;video:0kB audio:2292kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.938839%&lt;br /&gt;[aac @ 000000000042d340] Qavg: 2462.373&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -af "equalizer=f=440:width_type=o:width=2:g=10" G:\1\0\temp1.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000036a680] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp1.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2337kB time=00:02:30.92 bitrate= 126.9kbits/s speed=42.2x&lt;br /&gt;video:0kB audio:2293kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.938292%&lt;br /&gt;[aac @ 000000000036d300] Qavg: 2412.747&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -hide_banner -i "G:\1\0\temp.aac" "G:\1\0\temp.wav" -y&lt;br /&gt;[aac @ 000000000037a480] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; pcm_s16le (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, wav, to 'G:\1\0\temp.wav':&lt;br /&gt;  Metadata:&lt;br /&gt;    ISFT            : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 pcm_s16le&lt;br /&gt;size=   26000kB time=00:02:30.92 bitrate=1411.2kbits/s speed= 512x&lt;br /&gt;video:0kB audio:26000kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000293%&lt;br /&gt;&lt;br /&gt;C:\&gt;echo Audacity +20.0 dB gain&lt;br /&gt;Audacity +20.0 dB gain&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -hide_banner -i "G:\1\0\temp.wav" "G:\1\0\temp1.aac" -y&lt;br /&gt;[wav @ 000000000053a480] Discarding ID3 tags because more suitable tags were found.&lt;br /&gt;Guessed Channel Layout for Input Stream #0.0 : stereo&lt;br /&gt;Input #0, wav, from 'G:\1\0\temp.wav':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100 (libsndfile-1.0.24)&lt;br /&gt;  Duration: 00:02:30.93, bitrate: 1411 kb/s&lt;br /&gt;    Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (pcm_s16le (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp1.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2365kB time=00:02:30.92 bitrate= 128.4kbits/s speed=  37x&lt;br /&gt;video:0kB audio:2321kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.914719%&lt;br /&gt;[aac @ 0000000000560d40] Qavg: 2341.556&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.aac -af "volume=enable='between(t,0,17)':volume=0" G:\1\0\temp2.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000042a680] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp1.aac':&lt;br /&gt;  Duration: 00:02:36.23, bitrate: 124 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 124 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp2.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2107kB time=00:02:30.95 bitrate= 114.4kbits/s speed=28.8x&lt;br /&gt;video:0kB audio:2063kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.154475%&lt;br /&gt;[aac @ 000000000042d300] Qavg: 9472.637&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac -af "volume=enable='between(t,17,900)':volume=0" G:\1\0\temp3.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 00000000004aa680] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp3.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=     341kB time=00:02:30.92 bitrate=  18.5kbits/s speed=85.4x&lt;br /&gt;video:0kB audio:297kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 14.979953%&lt;br /&gt;[aac @ 00000000004ad300] Qavg: 58398.824&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp2.aac -i G:\1\0\temp3.aac -filter_complex amerge=inputs=2 -ac 2 G:\1\0\temp4.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000042bb00] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp2.aac':&lt;br /&gt;  Duration: 01:04:15.38, bitrate: 4 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 4 kb/s&lt;br /&gt;[aac @ 0000000000451980] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #1, aac, from 'G:\1\0\temp3.aac':&lt;br /&gt;  Duration: 00:00:20.28, bitrate: 137 kb/s&lt;br /&gt;    Stream #1:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 137 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (aac) -&gt; amerge:in0&lt;br /&gt;  Stream #1:0 (aac) -&gt; amerge:in1&lt;br /&gt;  amerge -&gt; Stream #0:0 (aac)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[Parsed_amerge_0 @ 0000000002500580] No channel layout for input 1&lt;br /&gt;[Parsed_amerge_0 @ 0000000002500580] Input channel layouts overlap: output layout will be determined by the number of distinct input channels&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp4.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2364kB time=00:02:30.95 bitrate= 128.3kbits/s speed=  33x&lt;br /&gt;video:0kB audio:2320kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.916218%&lt;br /&gt;[aac @ 000000000042ef00] Qavg: 2322.691&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\rifbaf.mp4 -ss 00:00:33 -to 00:00:36 -vn -c:a copy G:\1\0\temp2.aac&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[h264 @ 00000000003ace80] Missing reference picture, default is 0&lt;br /&gt;[h264 @ 00000000003ace80] decode_slice_header error&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\rifbaf.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;  Duration: 00:01:00.00, start: 0.000000, bitrate: 868 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 733 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : SoundHandler&lt;br /&gt;File 'G:\1\0\temp2.aac' already exists. Overwrite? [y/N] y&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp2.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : SoundHandler&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:1 -&gt; #0:0 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;size=      50kB time=00:00:02.99 bitrate= 137.9kbits/s speed= 299x&lt;br /&gt;video:0kB audio:49kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.782436%&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\rifbaf.mp4 -ss 00:00:33 -to 00:00:37 -vn -c:a copy G:\1\0\temp2.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[h264 @ 000000000014cf40] Missing reference picture, default is 0&lt;br /&gt;[h264 @ 000000000014cf40] decode_slice_header error&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\rifbaf.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;  Duration: 00:01:00.00, start: 0.000000, bitrate: 868 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 733 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : SoundHandler&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp2.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : SoundHandler&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:1 -&gt; #0:0 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;size=      66kB time=00:00:03.98 bitrate= 136.1kbits/s speed= 798x&lt;br /&gt;video:0kB audio:65kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.805639%&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp2.aac -i G:\1\0\temp4.aac -filter_complex "[1]adelay=13000|13000[aud];[0][aud]amix" G:\1\0\temp3.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000052bb80] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp2.aac':&lt;br /&gt;  Duration: 00:00:04.61, bitrate: 117 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 117 kb/s&lt;br /&gt;[aac @ 00000000005519c0] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #1, aac, from 'G:\1\0\temp4.aac':&lt;br /&gt;  Duration: 00:02:25.24, bitrate: 133 kb/s&lt;br /&gt;    Stream #1:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 133 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (aac) -&gt; amix:input0&lt;br /&gt;  Stream #1:0 (aac) -&gt; adelay&lt;br /&gt;  amix -&gt; Stream #0:0 (aac)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp3.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2429kB time=00:02:43.97 bitrate= 121.3kbits/s speed=38.6x&lt;br /&gt;video:0kB audio:2381kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.028053%&lt;br /&gt;[aac @ 000000000052eec0] Qavg: 5917.178&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp2.aac -f lavfi -i anullsrc=channel_layout=5.1:sample_rate=44100 -t 13 G:\1\0\temp3.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000045ab40] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp2.aac':&lt;br /&gt;  Duration: 00:00:04.61, bitrate: 117 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 117 kb/s&lt;br /&gt;Input #1, lavfi, from 'anullsrc=channel_layout=5.1:sample_rate=44100':&lt;br /&gt;  Duration: N/A, start: 0.000000, bitrate: 2116 kb/s&lt;br /&gt;    Stream #1:0: Audio: pcm_u8, 44100 Hz, 5.1, u8, 2116 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #1:0 -&gt; #0:0 (pcm_u8 (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp3.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, 5.1, fltp, 341 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=      14kB time=00:00:13.00 bitrate=   9.0kbits/s speed=49.1x&lt;br /&gt;video:0kB audio:10kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 36.666668%&lt;br /&gt;[aac @ 000000000046e940] Qavg: 65536.000&lt;br /&gt;&lt;br /&gt;C:\&gt;jjffmpeg -hide_banner -f lavfi -t 13 -i anullsrc=channel_layout=stereo:sample_rate=44100 -i G:\1\0\temp2.aac -filter_complex "[0:a][1:a]concat=n=2:v=0:a=1" G:\1\0\temp3.aac -y&lt;br /&gt;'jjffmpeg' is not recognized as an internal or external command,&lt;br /&gt;operable program or batch file.&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -hide_banner -f lavfi -t 13 -i anullsrc=channel_layout=stereo:sample_rate=44100 -i G:\1\0\temp2.aac -filter_complex "[0:a][1:a]concat=n=2:v=0:a=1" G:\1\0\temp3.aac -y&lt;br /&gt;Input #0, lavfi, from 'anullsrc=channel_layout=stereo:sample_rate=44100':&lt;br /&gt;  Duration: N/A, start: 0.000000, bitrate: 705 kb/s&lt;br /&gt;    Stream #0:0: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s&lt;br /&gt;[aac @ 0000000000413a40] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #1, aac, from 'G:\1\0\temp2.aac':&lt;br /&gt;  Duration: 00:00:04.61, bitrate: 117 kb/s&lt;br /&gt;    Stream #1:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 117 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (pcm_u8) -&gt; concat:in0:a0&lt;br /&gt;  Stream #1:0 (aac) -&gt; concat:in1:a0&lt;br /&gt;  concat -&gt; Stream #0:0 (aac)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp3.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=      71kB time=00:00:16.99 bitrate=  34.3kbits/s speed=77.3x&lt;br /&gt;video:0kB audio:66kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 7.565057%&lt;br /&gt;[aac @ 0000000000417580] Qavg: 51473.633&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp.aac g=20 G:\1\0\temp5.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000011a700] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp.aac':&lt;br /&gt;  Duration: 00:02:33.99, bitrate: 127 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 127 kb/s&lt;br /&gt;[NULL @ 0000000000141740] Unable to find a suitable output format for 'g=20'&lt;br /&gt;g=20: Invalid argument&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp3.aac -i G:\1\0\temp4.aac -filter_complex amerge=inputs=2 -ac 2 G:\1\0\temp5.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000044bb00] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp3.aac':&lt;br /&gt;  Duration: 00:02:10.34, bitrate: 4 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 4 kb/s&lt;br /&gt;[aac @ 0000000000471980] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #1, aac, from 'G:\1\0\temp4.aac':&lt;br /&gt;  Duration: 00:02:25.24, bitrate: 133 kb/s&lt;br /&gt;    Stream #1:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 133 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (aac) -&gt; amerge:in0&lt;br /&gt;  Stream #1:0 (aac) -&gt; amerge:in1&lt;br /&gt;  amerge -&gt; Stream #0:0 (aac)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[Parsed_amerge_0 @ 0000000002480140] No channel layout for input 1&lt;br /&gt;[Parsed_amerge_0 @ 0000000002480140] Input channel layouts overlap: output layout will be determined by the number of distinct input channels&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp5.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=     266kB time=00:00:17.02 bitrate= 128.0kbits/s speed=  37x&lt;br /&gt;video:0kB audio:261kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.923365%&lt;br /&gt;[aac @ 000000000044ef00] Qavg: 2430.740&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp3.aac -i G:\1\0\temp4.aac -filter_complex amerge=inputs=2 -ac 2 -longest G:\1\0\temp5.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Unrecognized option 'longest'.&lt;br /&gt;Error splitting the argument list: Option not found&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp3.aac -af "apad=pad_dur=500" G:\1\0\temp5.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000045a580] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp3.aac':&lt;br /&gt;  Duration: 00:02:10.34, bitrate: 4 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 4 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp5.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=     348kB time=00:08:37.03 bitrate=   5.5kbits/s speed= 141x&lt;br /&gt;video:0kB audio:195kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 77.909950%&lt;br /&gt;[aac @ 000000000045d200] Qavg: 65072.578&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp3.aac -i G:\1\0\temp4.aac -filter_complex amix=inputs=2:duration=longest G:\1\0\temp5.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000052bac0] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp3.aac':&lt;br /&gt;  Duration: 00:02:10.34, bitrate: 4 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 4 kb/s&lt;br /&gt;[aac @ 0000000000551940] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #1, aac, from 'G:\1\0\temp4.aac':&lt;br /&gt;  Duration: 00:02:25.24, bitrate: 133 kb/s&lt;br /&gt;    Stream #1:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 133 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (aac) -&gt; amix:input0&lt;br /&gt;  Stream #1:0 (aac) -&gt; amix:input1&lt;br /&gt;  amix -&gt; Stream #0:0 (aac)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp5.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2369kB time=00:02:30.97 bitrate= 128.6kbits/s speed=37.2x&lt;br /&gt;video:0kB audio:2325kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.912029%&lt;br /&gt;[aac @ 000000000052eec0] Qavg: 2404.648&lt;br /&gt;&lt;br /&gt;C:\&gt;echo "dl https://audiotrimmer.com/download.php?file=temp3-[AudioTrimmer.com].aac&amp;date=01"&lt;br /&gt;"dl https://audiotrimmer.com/download.php?file=temp3-[AudioTrimmer.com].aac&amp;date=01"&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp6.aac -i G:\1\0\temp4.aac -filter_complex amix=inputs=2:duration=longest G:\1\0\temp5.aac -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[aac @ 000000000031bac0] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #0, aac, from 'G:\1\0\temp6.aac':&lt;br /&gt;  Duration: 00:02:12.36, bitrate: 4 kb/s&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 4 kb/s&lt;br /&gt;[aac @ 0000000000341940] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #1, aac, from 'G:\1\0\temp4.aac':&lt;br /&gt;  Duration: 00:02:25.24, bitrate: 133 kb/s&lt;br /&gt;    Stream #1:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 133 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (aac) -&gt; amix:input0&lt;br /&gt;  Stream #1:0 (aac) -&gt; amix:input1&lt;br /&gt;  amix -&gt; Stream #0:0 (aac)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'G:\1\0\temp5.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    2369kB time=00:02:30.97 bitrate= 128.5kbits/s speed=37.3x&lt;br /&gt;video:0kB audio:2324kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.912457%&lt;br /&gt;[aac @ 000000000031eec0] Qavg: 2407.617&lt;br /&gt;&lt;br /&gt;C:\&gt;ffprobe "G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4"&lt;br /&gt;ffprobe version git-2020-06-20-29ea4e1 Copyright (c) 2007-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 1&lt;br /&gt;    compatible_brands: isomavc1&lt;br /&gt;    creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;  Duration: 02:23:26.12, start: 0.000000, bitrate: 2001 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1616 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 381 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T09:18:21.000000Z&lt;br /&gt;      handler_name    : Sound Media Handler&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i "G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4" -ss 00:05:02 -to 00:05:43 "zbrail.mp4" -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 1&lt;br /&gt;    compatible_brands: isomavc1&lt;br /&gt;    creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;  Duration: 02:23:26.12, start: 0.000000, bitrate: 2001 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1616 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 381 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T09:18:21.000000Z&lt;br /&gt;      handler_name    : Sound Media Handler&lt;br /&gt;zbrail.mp4: Permission denied&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -hide_banner -i "G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4" -ss 00:05:02 -to 00:05:43 "G:\1\0\zbrail.mp4" -y&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 1&lt;br /&gt;    compatible_brands: isomavc1&lt;br /&gt;    creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;  Duration: 02:23:26.12, start: 0.000000, bitrate: 2001 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1616 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 381 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T09:18:21.000000Z&lt;br /&gt;      handler_name    : Sound Media Handler&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 000000000046fdc0] using SAR=1/1&lt;br /&gt;[libx264 @ 000000000046fdc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 000000000046fdc0] profile High, level 4.0, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 000000000046fdc0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\zbrail.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 1&lt;br /&gt;    compatible_brands: isomavc1&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 23.98 fps, 24k tbn, 23.98 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T09:18:21.000000Z&lt;br /&gt;      handler_name    : Sound Media Handler&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame=    0 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.00 bitrate=N/A speed=   0x&lt;br /&gt;video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown&lt;br /&gt;[aac @ 00000000004714c0] Qavg: nan&lt;br /&gt;Exiting normally, received signal 2.&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -hide_banner -i "G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4" -ss 00:05:02 -to 00:05:43 -c copy "G:\1\0\zbrail.mp4" -y&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 1&lt;br /&gt;    compatible_brands: isomavc1&lt;br /&gt;    creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;  Duration: 02:23:26.12, start: 0.000000, bitrate: 2001 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1616 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 381 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T09:18:21.000000Z&lt;br /&gt;      handler_name    : Sound Media Handler&lt;br /&gt;Output #0, mp4, to 'G:\1\0\zbrail.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 1&lt;br /&gt;    compatible_brands: isomavc1&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 1616 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 24k tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 381 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T09:18:21.000000Z&lt;br /&gt;      handler_name    : Sound Media Handler&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (copy)&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;frame=  926 fps=785 q=-1.0 Lsize=   13360kB time=00:00:40.99 bitrate=2669.5kbits/s speed=34.7x&lt;br /&gt;video:11430kB audio:1908kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.162540%&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -hide_banner -i "G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4" -ss 00:05:01 -to 00:05:43 -c copy "G:\1\0\zbrail.mp4" -y&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 1&lt;br /&gt;    compatible_brands: isomavc1&lt;br /&gt;    creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;  Duration: 02:23:26.12, start: 0.000000, bitrate: 2001 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1616 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 381 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T09:18:21.000000Z&lt;br /&gt;      handler_name    : Sound Media Handler&lt;br /&gt;Output #0, mp4, to 'G:\1\0\zbrail.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 1&lt;br /&gt;    compatible_brands: isomavc1&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 1616 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 24k tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 381 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T09:18:21.000000Z&lt;br /&gt;      handler_name    : Sound Media Handler&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (copy)&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;frame=  926 fps=0.0 q=-1.0 Lsize=   13408kB time=00:00:41.99 bitrate=2615.4kbits/s speed=56.8x&lt;br /&gt;video:11430kB audio:1956kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.163326%&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -hide_banner -i "G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4" -ss 00:05:01 -to 00:05:43 -c copy "G:\1\0\zbrail.mkv" -y&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 1&lt;br /&gt;    compatible_brands: isomavc1&lt;br /&gt;    creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;  Duration: 02:23:26.12, start: 0.000000, bitrate: 2001 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1616 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 381 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T09:18:21.000000Z&lt;br /&gt;      handler_name    : Sound Media Handler&lt;br /&gt;Output #0, matroska, to 'G:\1\0\zbrail.mkv':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 1&lt;br /&gt;    compatible_brands: isomavc1&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 1616 kb/s, 23.98 fps, 23.98 tbr, 1k tbn, 24k tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) ([255][0][0][0] / 0x00FF), 48000 Hz, stereo, fltp, 381 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T09:18:21.000000Z&lt;br /&gt;      handler_name    : Sound Media Handler&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (copy)&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;frame=  926 fps=0.0 q=-1.0 Lsize=   13408kB time=00:00:41.99 bitrate=2615.4kbits/s speed= 135x&lt;br /&gt;video:11430kB audio:1956kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.160677%&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -hide_banner -i "G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4" -ss 00:05:02 -to 00:05:43 "G:\1\0\zbrail.mp4" -y&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 1&lt;br /&gt;    compatible_brands: isomavc1&lt;br /&gt;    creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;  Duration: 02:23:26.12, start: 0.000000, bitrate: 2001 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1616 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 381 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T09:18:21.000000Z&lt;br /&gt;      handler_name    : Sound Media Handler&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 000000000031fdc0] using SAR=1/1&lt;br /&gt;[libx264 @ 000000000031fdc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 000000000031fdc0] profile High, level 4.0, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 000000000031fdc0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\zbrail.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 1&lt;br /&gt;    compatible_brands: isomavc1&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 23.98 fps, 24k tbn, 23.98 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T09:18:21.000000Z&lt;br /&gt;      handler_name    : Sound Media Handler&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame=  984 fps=3.1 q=-1.0 Lsize=   19411kB time=00:00:41.00 bitrate=3878.2kbits/s speed=0.128x&lt;br /&gt;video:18743kB audio:644kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.126846%&lt;br /&gt;[libx264 @ 000000000031fdc0] frame I:38    Avg QP:18.31  size: 39308&lt;br /&gt;[libx264 @ 000000000031fdc0] frame P:718   Avg QP:21.47  size: 20213&lt;br /&gt;[libx264 @ 000000000031fdc0] frame B:228   Avg QP:22.61  size: 13971&lt;br /&gt;[libx264 @ 000000000031fdc0] consecutive B-frames: 63.3% 13.8% 10.7% 12.2%&lt;br /&gt;[libx264 @ 000000000031fdc0] mb I  I16..4: 24.0% 73.1%  2.9%&lt;br /&gt;[libx264 @ 000000000031fdc0] mb P  I16..4: 10.0% 25.4%  0.4%  P16..4: 30.4%  3.5%  1.2%  0.0%  0.0%    skip:29.2%&lt;br /&gt;[libx264 @ 000000000031fdc0] mb B  I16..4:  2.5%  6.5%  0.1%  B16..8: 40.8%  3.4%  0.4%  direct: 2.9%  skip:43.4%  L0:56.3% L1:41.9% BI: 1.8%&lt;br /&gt;[libx264 @ 000000000031fdc0] 8x8 transform intra:71.3% inter:93.6%&lt;br /&gt;[libx264 @ 000000000031fdc0] coded y,uvDC,uvAC intra: 29.1% 43.1% 1.0% inter: 9.3% 15.1% 0.0%&lt;br /&gt;[libx264 @ 000000000031fdc0] i16 v,h,dc,p: 29% 22% 10% 39%&lt;br /&gt;[libx264 @ 000000000031fdc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 17% 24%  4%  5%  5%  4%  5%  3%&lt;br /&gt;[libx264 @ 000000000031fdc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 36% 16% 14%  5%  8%  7%  5%  5%  2%&lt;br /&gt;[libx264 @ 000000000031fdc0] i8c dc,h,v,p: 62% 18% 19%  1%&lt;br /&gt;[libx264 @ 000000000031fdc0] Weighted P-Frames: Y:2.6% UV:2.4%&lt;br /&gt;[libx264 @ 000000000031fdc0] ref P L0: 73.3%  8.7% 12.4%  5.5%  0.0%&lt;br /&gt;[libx264 @ 000000000031fdc0] ref B L0: 86.4% 11.5%  2.1%&lt;br /&gt;[libx264 @ 000000000031fdc0] ref B L1: 98.0%  2.0%&lt;br /&gt;[libx264 @ 000000000031fdc0] kb/s:3741.00&lt;br /&gt;[aac @ 00000000003214c0] Qavg: 158.427&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -hide_banner -i "G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4" -ss 00:05:03 -to 00:05:43 "G:\1\0\zbrail.mp4" -y&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 1&lt;br /&gt;    compatible_brands: isomavc1&lt;br /&gt;    creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;  Duration: 02:23:26.12, start: 0.000000, bitrate: 2001 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1616 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 381 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T09:18:21.000000Z&lt;br /&gt;      handler_name    : Sound Media Handler&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 000000000051fdc0] using SAR=1/1&lt;br /&gt;[libx264 @ 000000000051fdc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 000000000051fdc0] profile High, level 4.0, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 000000000051fdc0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\zbrail.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 1&lt;br /&gt;    compatible_brands: isomavc1&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 23.98 fps, 24k tbn, 23.98 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T09:18:21.000000Z&lt;br /&gt;      handler_name    : Sound Media Handler&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame=  960 fps=2.6 q=-1.0 Lsize=   18984kB time=00:00:40.00 bitrate=3887.8kbits/s speed=0.108x&lt;br /&gt;video:18331kB audio:628kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.126549%&lt;br /&gt;[libx264 @ 000000000051fdc0] frame I:37    Avg QP:18.30  size: 39414&lt;br /&gt;[libx264 @ 000000000051fdc0] frame P:702   Avg QP:21.46  size: 20217&lt;br /&gt;[libx264 @ 000000000051fdc0] frame B:221   Avg QP:22.63  size: 14119&lt;br /&gt;[libx264 @ 000000000051fdc0] consecutive B-frames: 63.4% 14.0% 10.9% 11.7%&lt;br /&gt;[libx264 @ 000000000051fdc0] mb I  I16..4: 23.9% 73.3%  2.9%&lt;br /&gt;[libx264 @ 000000000051fdc0] mb P  I16..4: 10.1% 25.7%  0.4%  P16..4: 30.0%  3.5%  1.1%  0.0%  0.0%    skip:29.2%&lt;br /&gt;[libx264 @ 000000000051fdc0] mb B  I16..4:  2.6%  6.7%  0.1%  B16..8: 40.6%  3.5%  0.4%  direct: 2.9%  skip:43.3%  L0:56.0% L1:42.2% BI: 1.8%&lt;br /&gt;[libx264 @ 000000000051fdc0] 8x8 transform intra:71.4% inter:93.7%&lt;br /&gt;[libx264 @ 000000000051fdc0] coded y,uvDC,uvAC intra: 29.0% 43.1% 1.0% inter: 9.3% 15.1% 0.0%&lt;br /&gt;[libx264 @ 000000000051fdc0] i16 v,h,dc,p: 29% 22% 10% 39%&lt;br /&gt;[libx264 @ 000000000051fdc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 17% 25%  4%  5%  5%  4%  5%  3%&lt;br /&gt;[libx264 @ 000000000051fdc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 36% 16% 14%  5%  8%  7%  5%  6%  2%&lt;br /&gt;[libx264 @ 000000000051fdc0] i8c dc,h,v,p: 62% 18% 19%  1%&lt;br /&gt;[libx264 @ 000000000051fdc0] Weighted P-Frames: Y:2.7% UV:2.4%&lt;br /&gt;[libx264 @ 000000000051fdc0] ref P L0: 73.2%  8.7% 12.6%  5.6%  0.0%&lt;br /&gt;[libx264 @ 000000000051fdc0] ref B L0: 86.4% 11.5%  2.1%&lt;br /&gt;[libx264 @ 000000000051fdc0] ref B L1: 98.0%  2.0%&lt;br /&gt;[libx264 @ 000000000051fdc0] kb/s:3750.39&lt;br /&gt;[aac @ 00000000005214c0] Qavg: 157.871&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\zbrail.mp4 -vf scale=-1:640 -an G:\1\0\temp3.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\zbrail.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:40.04, start: 0.000000, bitrate: 3883 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 3750 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : Sound Media Handler&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000001bbfc0] using SAR=4095/4096&lt;br /&gt;[libx264 @ 00000000001bbfc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000001bbfc0] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000001bbfc0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp3.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 5120:5121 DAR 16:9], q=-1--1, 23.98 fps, 24k tbn, 23.98 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;av_interleaved_write_frame(): Immediate exit requested20.31 bitrate=1548.7kbits/s speed=0.474x&lt;br /&gt;Error writing trailer of G:\1\0\temp3.mp4: Immediate exit requested&lt;br /&gt;frame=  539 fps= 12 q=28.0 Lsize=    4096kB time=00:00:22.18 bitrate=1512.2kbits/s speed=0.489x&lt;br /&gt;video:4353kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown&lt;br /&gt;[libx264 @ 00000000001bbfc0] frame I:16    Avg QP:19.44  size: 22844&lt;br /&gt;[libx264 @ 00000000001bbfc0] frame P:180   Avg QP:22.37  size: 12122&lt;br /&gt;[libx264 @ 00000000001bbfc0] frame B:343   Avg QP:23.27  size:  5627&lt;br /&gt;[libx264 @ 00000000001bbfc0] consecutive B-frames: 11.7%  5.9% 13.4% 69.0%&lt;br /&gt;[libx264 @ 00000000001bbfc0] mb I  I16..4: 15.4% 73.3% 11.3%&lt;br /&gt;[libx264 @ 00000000001bbfc0] mb P  I16..4: 12.0% 36.9%  3.2%  P16..4: 27.4%  5.9%  2.6%  0.0%  0.0%    skip:12.1%&lt;br /&gt;[libx264 @ 00000000001bbfc0] mb B  I16..4:  2.2%  4.9%  0.4%  B16..8: 38.7%  5.4%  0.7%  direct: 3.2%  skip:44.5%  L0:47.3% L1:49.9% BI: 2.7%&lt;br /&gt;[libx264 @ 00000000001bbfc0] 8x8 transform intra:70.1% inter:90.2%&lt;br /&gt;[libx264 @ 00000000001bbfc0] coded y,uvDC,uvAC intra: 39.8% 56.4% 7.2% inter: 13.2% 19.5% 0.0%&lt;br /&gt;[libx264 @ 00000000001bbfc0] i16 v,h,dc,p: 39% 20%  9% 32%&lt;br /&gt;[libx264 @ 00000000001bbfc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 17% 22%  5%  5%  5%  5%  5%  4%&lt;br /&gt;[libx264 @ 00000000001bbfc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 37% 16% 13%  5%  7%  7%  5%  6%  3%&lt;br /&gt;[libx264 @ 00000000001bbfc0] i8c dc,h,v,p: 59% 18% 20%  3%&lt;br /&gt;[libx264 @ 00000000001bbfc0] Weighted P-Frames: Y:8.9% UV:8.3%&lt;br /&gt;[libx264 @ 00000000001bbfc0] ref P L0: 66.3%  9.7% 16.7%  7.2%  0.1%&lt;br /&gt;[libx264 @ 00000000001bbfc0] ref B L0: 90.0%  8.1%  1.9%&lt;br /&gt;[libx264 @ 00000000001bbfc0] ref B L1: 96.8%  3.2%&lt;br /&gt;[libx264 @ 00000000001bbfc0] kb/s:1593.38&lt;br /&gt;Exiting normally, received signal 2.&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\zbrail.mp4 -vf scale=-1:640 -an G:\1\0\temp3.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\zbrail.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:40.04, start: 0.000000, bitrate: 3883 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 3750 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : Sound Media Handler&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 000000000072bfc0] using SAR=4095/4096&lt;br /&gt;[libx264 @ 000000000072bfc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 000000000072bfc0] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 000000000072bfc0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp3.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 5120:5121 DAR 16:9], q=-1--1, 23.98 fps, 24k tbn, 23.98 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;frame=  960 fps= 12 q=-1.0 Lsize=    8755kB time=00:00:39.91 bitrate=1796.8kbits/s speed=0.494x&lt;br /&gt;video:8744kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.129391%&lt;br /&gt;[libx264 @ 000000000072bfc0] frame I:37    Avg QP:19.97  size: 21997&lt;br /&gt;[libx264 @ 000000000072bfc0] frame P:336   Avg QP:22.85  size: 12372&lt;br /&gt;[libx264 @ 000000000072bfc0] frame B:587   Avg QP:23.67  size:  6784&lt;br /&gt;[libx264 @ 000000000072bfc0] consecutive B-frames: 13.9%  8.5% 15.9% 61.7%&lt;br /&gt;[libx264 @ 000000000072bfc0] mb I  I16..4: 15.1% 75.2%  9.7%&lt;br /&gt;[libx264 @ 000000000072bfc0] mb P  I16..4: 11.6% 39.9%  3.0%  P16..4: 26.5%  5.5%  2.1%  0.0%  0.0%    skip:11.4%&lt;br /&gt;[libx264 @ 000000000072bfc0] mb B  I16..4:  2.4%  6.7%  0.5%  B16..8: 39.1%  6.8%  0.9%  direct: 3.4%  skip:40.1%  L0:48.5% L1:48.4% BI: 3.1%&lt;br /&gt;[libx264 @ 000000000072bfc0] 8x8 transform intra:72.8% inter:90.2%&lt;br /&gt;[libx264 @ 000000000072bfc0] coded y,uvDC,uvAC intra: 43.5% 56.0% 6.1% inter: 15.3% 20.3% 0.0%&lt;br /&gt;[libx264 @ 000000000072bfc0] i16 v,h,dc,p: 32% 21%  8% 39%&lt;br /&gt;[libx264 @ 000000000072bfc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 18% 20%  5%  6%  6%  6%  6%  5%&lt;br /&gt;[libx264 @ 000000000072bfc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 17% 12%  5%  9%  8%  6%  6%  3%&lt;br /&gt;[libx264 @ 000000000072bfc0] i8c dc,h,v,p: 60% 18% 20%  3%&lt;br /&gt;[libx264 @ 000000000072bfc0] Weighted P-Frames: Y:4.8% UV:4.5%&lt;br /&gt;[libx264 @ 000000000072bfc0] ref P L0: 68.8%  9.2% 15.2%  6.7%  0.1%&lt;br /&gt;[libx264 @ 000000000072bfc0] ref B L0: 90.6%  7.6%  1.8%&lt;br /&gt;[libx264 @ 000000000072bfc0] ref B L1: 97.2%  2.8%&lt;br /&gt;[libx264 @ 000000000072bfc0] kb/s:1788.77&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp2.mp4 -vf "scale=1138x640:force_original_aspect_ratio=decrease,pad=1138x640:(ow-iw)/2:(oh-ih)/2,setsar=1" G:\1\0\temp1.mp4&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 1325 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1060x640 [SAR 1:1 DAR 53:32], 1191 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;File 'G:\1\0\temp1.mp4' already exists. Overwrite? [y/N] y&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[Parsed_pad_1 @ 0000000003c3dc40] [Eval @ 000000000031e650] Invalid chars 'x640' at the end of expression '1138x640'&lt;br /&gt;[Parsed_pad_1 @ 0000000003c3dc40] Error when evaluating the expression '(ow-iw)/2'&lt;br /&gt;[Parsed_pad_1 @ 0000000003c3dc40] Failed to configure input pad on Parsed_pad_1&lt;br /&gt;Error reinitializing filters!&lt;br /&gt;Failed to inject frame into filter network: Invalid argument&lt;br /&gt;Error while processing the decoded data for stream #0:0&lt;br /&gt;[aac @ 00000000027944c0] Qavg: 65536.000&lt;br /&gt;[aac @ 00000000027944c0] 2 frames left in the queue on closing&lt;br /&gt;Conversion failed!&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp2.mp4 -vf 'scale=1138x640:force_original_aspect_ratio=decrease,pad=1138x640:(ow-iw)/2:(oh-ih)/2,setsar=1' G:\1\0\temp1.mp4&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 1325 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1060x640 [SAR 1:1 DAR 53:32], 1191 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;File 'G:\1\0\temp1.mp4' already exists. Overwrite? [y/N] y&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[AVFilterGraph @ 00000000035ff480] No such filter: 'scale=1138x640:force_original_aspect_ratio=decrease,pad=1138x640:(ow-iw)/2:(oh-ih)/2,setsar=1'&lt;br /&gt;Error reinitializing filters!&lt;br /&gt;Failed to inject frame into filter network: Invalid argument&lt;br /&gt;Error while processing the decoded data for stream #0:0&lt;br /&gt;[aac @ 00000000026a44c0] Qavg: 65536.000&lt;br /&gt;[aac @ 00000000026a44c0] 2 frames left in the queue on closing&lt;br /&gt;Conversion failed!&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp2.mp4 -filter_complex "[0]pad=w=39+iw:h=ih:x=0:y=0:color=black" G:\1\0\temp1.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 1325 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1060x640 [SAR 1:1 DAR 53:32], 1191 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (h264) -&gt; pad (graph 0)&lt;br /&gt;  pad (graph 0) -&gt; Stream #0:0 (libx264)&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000005935c0] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000005935c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000005935c0] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000005935c0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1098x640 [SAR 1:1 DAR 549:320], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame=  578 fps= 19 q=-1.0 Lsize=    3571kB time=00:00:23.01 bitrate=1271.4kbits/s speed=0.767x&lt;br /&gt;video:3313kB audio:238kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.556806%&lt;br /&gt;[libx264 @ 00000000005935c0] frame I:6     Avg QP:19.72  size: 32267&lt;br /&gt;[libx264 @ 00000000005935c0] frame P:227   Avg QP:22.89  size: 10101&lt;br /&gt;[libx264 @ 00000000005935c0] frame B:345   Avg QP:25.75  size:  2624&lt;br /&gt;[libx264 @ 00000000005935c0] consecutive B-frames:  6.4% 32.9% 27.5% 33.2%&lt;br /&gt;[libx264 @ 00000000005935c0] mb I  I16..4: 13.8% 64.7% 21.6%&lt;br /&gt;[libx264 @ 00000000005935c0] mb P  I16..4:  5.7% 17.6%  2.3%  P16..4: 31.5%  8.5%  2.7%  0.0%  0.0%    skip:31.8%&lt;br /&gt;[libx264 @ 00000000005935c0] mb B  I16..4:  0.6%  1.3%  0.3%  B16..8: 27.3%  3.2%  0.4%  direct: 1.2%  skip:65.8%  L0:43.3% L1:53.2% BI: 3.5%&lt;br /&gt;[libx264 @ 00000000005935c0] 8x8 transform intra:67.8% inter:71.6%&lt;br /&gt;[libx264 @ 00000000005935c0] coded y,uvDC,uvAC intra: 43.6% 37.1% 4.2% inter: 7.8% 6.5% 0.0%&lt;br /&gt;[libx264 @ 00000000005935c0] i16 v,h,dc,p: 29% 27% 10% 34%&lt;br /&gt;[libx264 @ 00000000005935c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 25% 17%  4%  5%  5%  5%  4%  5%&lt;br /&gt;[libx264 @ 00000000005935c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 26% 12%  5%  7%  6%  9%  5%  5%&lt;br /&gt;[libx264 @ 00000000005935c0] i8c dc,h,v,p: 63% 17% 16%  4%&lt;br /&gt;[libx264 @ 00000000005935c0] Weighted P-Frames: Y:4.8% UV:3.1%&lt;br /&gt;[libx264 @ 00000000005935c0] ref P L0: 71.2% 18.7%  7.0%  3.0%  0.1%&lt;br /&gt;[libx264 @ 00000000005935c0] ref B L0: 89.8%  9.1%  1.0%&lt;br /&gt;[libx264 @ 00000000005935c0] ref B L1: 99.2%  0.8%&lt;br /&gt;[libx264 @ 00000000005935c0] kb/s:1173.66&lt;br /&gt;[aac @ 000000000062c080] Qavg: 23247.461&lt;br /&gt;&lt;br /&gt;C:\&gt;aaffmpeg -i G:\1\0\temp1.mp4 -filter_complex "[0]pad=w=39:h=ih:x=-39:y=0:color=black" G:\1\0\temp2.mp4 -y&lt;br /&gt;'aaffmpeg' is not recognized as an internal or external command,&lt;br /&gt;operable program or batch file.&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.mp4 -filter_complex "[0]pad=w=39:h=ih:x=-39:y=0:color=black" G:\1\0\temp2.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 1265 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1098x640 [SAR 1:1 DAR 549:320], 1173 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (h264) -&gt; pad (graph 0)&lt;br /&gt;  pad (graph 0) -&gt; Stream #0:0 (libx264)&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[Parsed_pad_0 @ 00000000028a7840] Padded dimensions cannot be smaller than input dimensions.&lt;br /&gt;[Parsed_pad_0 @ 00000000028a7840] Failed to configure input pad on Parsed_pad_0&lt;br /&gt;Error reinitializing filters!&lt;br /&gt;Failed to inject frame into filter network: Invalid argument&lt;br /&gt;Error while processing the decoded data for stream #0:0&lt;br /&gt;[aac @ 000000000058b8c0] Qavg: 65536.000&lt;br /&gt;[aac @ 000000000058b8c0] 2 frames left in the queue on closing&lt;br /&gt;Conversion failed!&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.mp4 -filter_complex "[0]pad=w=39:h=ih:x=0:y=0:color=black" G:\1\0\temp2.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 1265 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1098x640 [SAR 1:1 DAR 549:320], 1173 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (h264) -&gt; pad (graph 0)&lt;br /&gt;  pad (graph 0) -&gt; Stream #0:0 (libx264)&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[Parsed_pad_0 @ 000000000277f800] Padded dimensions cannot be smaller than input dimensions.&lt;br /&gt;[Parsed_pad_0 @ 000000000277f800] Failed to configure input pad on Parsed_pad_0&lt;br /&gt;Error reinitializing filters!&lt;br /&gt;Failed to inject frame into filter network: Invalid argument&lt;br /&gt;Error while processing the decoded data for stream #0:0&lt;br /&gt;[aac @ 000000000044c300] Qavg: 65536.000&lt;br /&gt;[aac @ 000000000044c300] 2 frames left in the queue on closing&lt;br /&gt;Conversion failed!&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.mp4 -filter_complex "[0]pad=w=39+iw:h=ih:x=-39:y=0:color=black" G:\1\0\temp2.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 1265 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1098x640 [SAR 1:1 DAR 549:320], 1173 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (h264) -&gt; pad (graph 0)&lt;br /&gt;  pad (graph 0) -&gt; Stream #0:0 (libx264)&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000027464c0] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000027464c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000027464c0] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000027464c0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1136x640 [SAR 1:1 DAR 71:40], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame=  578 fps= 16 q=-1.0 Lsize=    4189kB time=00:00:23.01 bitrate=1491.3kbits/s speed=0.651x&lt;br /&gt;video:3931kB audio:238kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.477664%&lt;br /&gt;[libx264 @ 00000000027464c0] frame I:6     Avg QP:20.01  size: 36464&lt;br /&gt;[libx264 @ 00000000027464c0] frame P:207   Avg QP:23.07  size: 12244&lt;br /&gt;[libx264 @ 00000000027464c0] frame B:365   Avg QP:24.32  size:  3483&lt;br /&gt;[libx264 @ 00000000027464c0] consecutive B-frames:  5.5% 24.6% 18.7% 51.2%&lt;br /&gt;[libx264 @ 00000000027464c0] mb I  I16..4: 13.2% 72.4% 14.4%&lt;br /&gt;[libx264 @ 00000000027464c0] mb P  I16..4:  5.3% 20.0%  2.3%  P16..4: 28.5%  9.1%  3.5%  0.0%  0.0%    skip:31.2%&lt;br /&gt;[libx264 @ 00000000027464c0] mb B  I16..4:  0.7%  1.7%  0.3%  B16..8: 29.7%  4.0%  0.5%  direct: 1.3%  skip:61.7%  L0:43.8% L1:52.3% BI: 3.9%&lt;br /&gt;[libx264 @ 00000000027464c0] 8x8 transform intra:70.9% inter:73.0%&lt;br /&gt;[libx264 @ 00000000027464c0] coded y,uvDC,uvAC intra: 44.4% 40.9% 5.9% inter: 9.6% 8.0% 0.1%&lt;br /&gt;[libx264 @ 00000000027464c0] i16 v,h,dc,p: 33% 26%  8% 33%&lt;br /&gt;[libx264 @ 00000000027464c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 24% 18%  4%  5%  5%  6%  5%  5%&lt;br /&gt;[libx264 @ 00000000027464c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 28% 11%  4%  7%  6%  8%  5%  5%&lt;br /&gt;[libx264 @ 00000000027464c0] i8c dc,h,v,p: 61% 17% 17%  4%&lt;br /&gt;[libx264 @ 00000000027464c0] Weighted P-Frames: Y:6.3% UV:4.3%&lt;br /&gt;[libx264 @ 00000000027464c0] ref P L0: 71.2% 17.1%  8.4%  3.2%  0.1%&lt;br /&gt;[libx264 @ 00000000027464c0] ref B L0: 91.1%  7.4%  1.5%&lt;br /&gt;[libx264 @ 00000000027464c0] ref B L1: 98.6%  1.4%&lt;br /&gt;[libx264 @ 00000000027464c0] kb/s:1392.56&lt;br /&gt;[aac @ 000000000282d000] Qavg: 23248.646&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.mp4 -filter_complex "[0]pad=w=39+iw:h=ih:x=-78:y=0:color=black" G:\1\0\temp2.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 1265 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1098x640 [SAR 1:1 DAR 549:320], 1173 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (h264) -&gt; pad (graph 0)&lt;br /&gt;  pad (graph 0) -&gt; Stream #0:0 (libx264)&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000025d64c0] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000025d64c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000025d64c0] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000025d64c0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1136x640 [SAR 1:1 DAR 71:40], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame=  578 fps= 20 q=-1.0 Lsize=    4189kB time=00:00:23.01 bitrate=1491.3kbits/s speed=0.78x&lt;br /&gt;video:3931kB audio:238kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.477664%&lt;br /&gt;[libx264 @ 00000000025d64c0] frame I:6     Avg QP:20.01  size: 36464&lt;br /&gt;[libx264 @ 00000000025d64c0] frame P:207   Avg QP:23.07  size: 12244&lt;br /&gt;[libx264 @ 00000000025d64c0] frame B:365   Avg QP:24.32  size:  3483&lt;br /&gt;[libx264 @ 00000000025d64c0] consecutive B-frames:  5.5% 24.6% 18.7% 51.2%&lt;br /&gt;[libx264 @ 00000000025d64c0] mb I  I16..4: 13.2% 72.4% 14.4%&lt;br /&gt;[libx264 @ 00000000025d64c0] mb P  I16..4:  5.3% 20.0%  2.3%  P16..4: 28.5%  9.1%  3.5%  0.0%  0.0%    skip:31.2%&lt;br /&gt;[libx264 @ 00000000025d64c0] mb B  I16..4:  0.7%  1.7%  0.3%  B16..8: 29.7%  4.0%  0.5%  direct: 1.3%  skip:61.7%  L0:43.8% L1:52.3% BI: 3.9%&lt;br /&gt;[libx264 @ 00000000025d64c0] 8x8 transform intra:70.9% inter:73.0%&lt;br /&gt;[libx264 @ 00000000025d64c0] coded y,uvDC,uvAC intra: 44.4% 40.9% 5.9% inter: 9.6% 8.0% 0.1%&lt;br /&gt;[libx264 @ 00000000025d64c0] i16 v,h,dc,p: 33% 26%  8% 33%&lt;br /&gt;[libx264 @ 00000000025d64c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 24% 18%  4%  5%  5%  6%  5%  5%&lt;br /&gt;[libx264 @ 00000000025d64c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 28% 11%  4%  7%  6%  8%  5%  5%&lt;br /&gt;[libx264 @ 00000000025d64c0] i8c dc,h,v,p: 61% 17% 17%  4%&lt;br /&gt;[libx264 @ 00000000025d64c0] Weighted P-Frames: Y:6.3% UV:4.3%&lt;br /&gt;[libx264 @ 00000000025d64c0] ref P L0: 71.2% 17.1%  8.4%  3.2%  0.1%&lt;br /&gt;[libx264 @ 00000000025d64c0] ref B L0: 91.1%  7.4%  1.5%&lt;br /&gt;[libx264 @ 00000000025d64c0] ref B L1: 98.6%  1.4%&lt;br /&gt;[libx264 @ 00000000025d64c0] kb/s:1392.56&lt;br /&gt;[aac @ 00000000026bd000] Qavg: 23248.646&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.mp4 -filter_complex "[0]pad=w=1138:h=ih:x=-39:y=0:color=black" G:\1\0\temp2.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 1265 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1098x640 [SAR 1:1 DAR 549:320], 1173 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (h264) -&gt; pad (graph 0)&lt;br /&gt;  pad (graph 0) -&gt; Stream #0:0 (libx264)&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000027164c0] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000027164c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000027164c0] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000027164c0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame=  578 fps= 12 q=-1.0 Lsize=    4227kB time=00:00:23.01 bitrate=1504.8kbits/s speed=0.497x&lt;br /&gt;video:3969kB audio:238kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.473471%&lt;br /&gt;[libx264 @ 00000000027164c0] frame I:7     Avg QP:20.20  size: 32428&lt;br /&gt;[libx264 @ 00000000027164c0] frame P:202   Avg QP:23.02  size: 12175&lt;br /&gt;[libx264 @ 00000000027164c0] frame B:369   Avg QP:24.28  size:  3732&lt;br /&gt;[libx264 @ 00000000027164c0] consecutive B-frames:  5.7% 21.1% 19.2% 54.0%&lt;br /&gt;[libx264 @ 00000000027164c0] mb I  I16..4: 14.2% 62.5% 23.3%&lt;br /&gt;[libx264 @ 00000000027164c0] mb P  I16..4:  5.5% 19.5%  2.8%  P16..4: 27.1% 10.1%  3.7%  0.0%  0.0%    skip:31.3%&lt;br /&gt;[libx264 @ 00000000027164c0] mb B  I16..4:  0.8%  1.8%  0.4%  B16..8: 28.1%  4.9%  0.6%  direct: 1.6%  skip:61.8%  L0:44.3% L1:51.8% BI: 3.9%&lt;br /&gt;[libx264 @ 00000000027164c0] 8x8 transform intra:67.9% inter:68.2%&lt;br /&gt;[libx264 @ 00000000027164c0] coded y,uvDC,uvAC intra: 44.8% 43.2% 9.2% inter: 10.5% 8.7% 0.2%&lt;br /&gt;[libx264 @ 00000000027164c0] i16 v,h,dc,p: 36% 26%  9% 29%&lt;br /&gt;[libx264 @ 00000000027164c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 26% 17%  4%  5%  5%  6%  4%  5%&lt;br /&gt;[libx264 @ 00000000027164c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 26% 12%  5%  8%  6%  9%  5%  5%&lt;br /&gt;[libx264 @ 00000000027164c0] i8c dc,h,v,p: 61% 18% 16%  4%&lt;br /&gt;[libx264 @ 00000000027164c0] Weighted P-Frames: Y:6.9% UV:5.0%&lt;br /&gt;[libx264 @ 00000000027164c0] ref P L0: 71.3% 16.4%  9.0%  3.2%  0.1%&lt;br /&gt;[libx264 @ 00000000027164c0] ref B L0: 92.2%  6.5%  1.4%&lt;br /&gt;[libx264 @ 00000000027164c0] ref B L1: 98.6%  1.4%&lt;br /&gt;[libx264 @ 00000000027164c0] kb/s:1406.00&lt;br /&gt;[aac @ 00000000027fd000] Qavg: 23248.646&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.mp4 -filter_complex "[0]pad=w=1138:h=ih:x=0:y=0:color=black" G:\1\0\temp2.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 1265 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1098x640 [SAR 1:1 DAR 549:320], 1173 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (h264) -&gt; pad (graph 0)&lt;br /&gt;  pad (graph 0) -&gt; Stream #0:0 (libx264)&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 0000000000487700] using SAR=1/1&lt;br /&gt;[libx264 @ 0000000000487700] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 0000000000487700] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 0000000000487700] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame=  578 fps= 15 q=-1.0 Lsize=    3540kB time=00:00:23.01 bitrate=1260.2kbits/s speed=0.593x&lt;br /&gt;video:3282kB audio:238kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.561750%&lt;br /&gt;[libx264 @ 0000000000487700] frame I:6     Avg QP:19.82  size: 32354&lt;br /&gt;[libx264 @ 0000000000487700] frame P:230   Avg QP:22.83  size:  9908&lt;br /&gt;[libx264 @ 0000000000487700] frame B:342   Avg QP:25.58  size:  2594&lt;br /&gt;[libx264 @ 0000000000487700] consecutive B-frames:  6.7% 34.3% 26.5% 32.5%&lt;br /&gt;[libx264 @ 0000000000487700] mb I  I16..4: 13.0% 66.6% 20.4%&lt;br /&gt;[libx264 @ 0000000000487700] mb P  I16..4:  5.1% 17.8%  2.1%  P16..4: 29.7%  7.8%  2.5%  0.0%  0.0%    skip:35.0%&lt;br /&gt;[libx264 @ 0000000000487700] mb B  I16..4:  0.5%  1.3%  0.2%  B16..8: 26.3%  3.0%  0.3%  direct: 1.0%  skip:67.4%  L0:43.5% L1:53.2% BI: 3.3%&lt;br /&gt;[libx264 @ 0000000000487700] 8x8 transform intra:70.0% inter:73.4%&lt;br /&gt;[libx264 @ 0000000000487700] coded y,uvDC,uvAC intra: 43.0% 38.5% 4.0% inter: 7.1% 6.5% 0.0%&lt;br /&gt;[libx264 @ 0000000000487700] i16 v,h,dc,p: 29% 27% 10% 34%&lt;br /&gt;[libx264 @ 0000000000487700] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 24% 17%  4%  5%  5%  5%  4%  5%&lt;br /&gt;[libx264 @ 0000000000487700] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 26% 12%  5%  7%  6%  9%  5%  5%&lt;br /&gt;[libx264 @ 0000000000487700] i8c dc,h,v,p: 63% 17% 16%  4%&lt;br /&gt;[libx264 @ 0000000000487700] Weighted P-Frames: Y:5.7% UV:3.9%&lt;br /&gt;[libx264 @ 0000000000487700] ref P L0: 71.8% 17.9%  7.2%  3.0%  0.1%&lt;br /&gt;[libx264 @ 0000000000487700] ref B L0: 89.1%  9.6%  1.2%&lt;br /&gt;[libx264 @ 0000000000487700] ref B L1: 99.3%  0.7%&lt;br /&gt;[libx264 @ 0000000000487700] kb/s:1162.63&lt;br /&gt;[aac @ 000000000050b8c0] Qavg: 23248.646&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.mp4 -filter_complex "[0]pad=w=1138:h=ih:x=iw+39:y=0:color=black" G:\1\0\temp2.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 1265 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1098x640 [SAR 1:1 DAR 549:320], 1173 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (h264) -&gt; pad (graph 0)&lt;br /&gt;  pad (graph 0) -&gt; Stream #0:0 (libx264)&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000025364c0] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000025364c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000025364c0] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000025364c0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame=  578 fps= 12 q=-1.0 Lsize=    4227kB time=00:00:23.01 bitrate=1504.8kbits/s speed=0.487x&lt;br /&gt;video:3969kB audio:238kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.473471%&lt;br /&gt;[libx264 @ 00000000025364c0] frame I:7     Avg QP:20.20  size: 32428&lt;br /&gt;[libx264 @ 00000000025364c0] frame P:202   Avg QP:23.02  size: 12175&lt;br /&gt;[libx264 @ 00000000025364c0] frame B:369   Avg QP:24.28  size:  3732&lt;br /&gt;[libx264 @ 00000000025364c0] consecutive B-frames:  5.7% 21.1% 19.2% 54.0%&lt;br /&gt;[libx264 @ 00000000025364c0] mb I  I16..4: 14.2% 62.5% 23.3%&lt;br /&gt;[libx264 @ 00000000025364c0] mb P  I16..4:  5.5% 19.5%  2.8%  P16..4: 27.1% 10.1%  3.7%  0.0%  0.0%    skip:31.3%&lt;br /&gt;[libx264 @ 00000000025364c0] mb B  I16..4:  0.8%  1.8%  0.4%  B16..8: 28.1%  4.9%  0.6%  direct: 1.6%  skip:61.8%  L0:44.3% L1:51.8% BI: 3.9%&lt;br /&gt;[libx264 @ 00000000025364c0] 8x8 transform intra:67.9% inter:68.2%&lt;br /&gt;[libx264 @ 00000000025364c0] coded y,uvDC,uvAC intra: 44.8% 43.2% 9.2% inter: 10.5% 8.7% 0.2%&lt;br /&gt;[libx264 @ 00000000025364c0] i16 v,h,dc,p: 36% 26%  9% 29%&lt;br /&gt;[libx264 @ 00000000025364c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 26% 17%  4%  5%  5%  6%  4%  5%&lt;br /&gt;[libx264 @ 00000000025364c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 26% 12%  5%  8%  6%  9%  5%  5%&lt;br /&gt;[libx264 @ 00000000025364c0] i8c dc,h,v,p: 61% 18% 16%  4%&lt;br /&gt;[libx264 @ 00000000025364c0] Weighted P-Frames: Y:6.9% UV:5.0%&lt;br /&gt;[libx264 @ 00000000025364c0] ref P L0: 71.3% 16.4%  9.0%  3.2%  0.1%&lt;br /&gt;[libx264 @ 00000000025364c0] ref B L0: 92.2%  6.5%  1.4%&lt;br /&gt;[libx264 @ 00000000025364c0] ref B L1: 98.6%  1.4%&lt;br /&gt;[libx264 @ 00000000025364c0] kb/s:1406.00&lt;br /&gt;[aac @ 000000000261d000] Qavg: 23248.646&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.mp4 -filter_complex "[0]pad=w=1138:h=ih:x=iw+79:y=0:color=black" G:\1\0\temp2.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 1265 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1098x640 [SAR 1:1 DAR 549:320], 1173 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (h264) -&gt; pad (graph 0)&lt;br /&gt;  pad (graph 0) -&gt; Stream #0:0 (libx264)&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000028464c0] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000028464c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000028464c0] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000028464c0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame=  578 fps= 13 q=-1.0 Lsize=    4227kB time=00:00:23.01 bitrate=1504.8kbits/s speed=0.526x&lt;br /&gt;video:3969kB audio:238kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.473471%&lt;br /&gt;[libx264 @ 00000000028464c0] frame I:7     Avg QP:20.20  size: 32428&lt;br /&gt;[libx264 @ 00000000028464c0] frame P:202   Avg QP:23.02  size: 12175&lt;br /&gt;[libx264 @ 00000000028464c0] frame B:369   Avg QP:24.28  size:  3732&lt;br /&gt;[libx264 @ 00000000028464c0] consecutive B-frames:  5.7% 21.1% 19.2% 54.0%&lt;br /&gt;[libx264 @ 00000000028464c0] mb I  I16..4: 14.2% 62.5% 23.3%&lt;br /&gt;[libx264 @ 00000000028464c0] mb P  I16..4:  5.5% 19.5%  2.8%  P16..4: 27.1% 10.1%  3.7%  0.0%  0.0%    skip:31.3%&lt;br /&gt;[libx264 @ 00000000028464c0] mb B  I16..4:  0.8%  1.8%  0.4%  B16..8: 28.1%  4.9%  0.6%  direct: 1.6%  skip:61.8%  L0:44.3% L1:51.8% BI: 3.9%&lt;br /&gt;[libx264 @ 00000000028464c0] 8x8 transform intra:67.9% inter:68.2%&lt;br /&gt;[libx264 @ 00000000028464c0] coded y,uvDC,uvAC intra: 44.8% 43.2% 9.2% inter: 10.5% 8.7% 0.2%&lt;br /&gt;[libx264 @ 00000000028464c0] i16 v,h,dc,p: 36% 26%  9% 29%&lt;br /&gt;[libx264 @ 00000000028464c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 26% 17%  4%  5%  5%  6%  4%  5%&lt;br /&gt;[libx264 @ 00000000028464c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 26% 12%  5%  8%  6%  9%  5%  5%&lt;br /&gt;[libx264 @ 00000000028464c0] i8c dc,h,v,p: 61% 18% 16%  4%&lt;br /&gt;[libx264 @ 00000000028464c0] Weighted P-Frames: Y:6.9% UV:5.0%&lt;br /&gt;[libx264 @ 00000000028464c0] ref P L0: 71.3% 16.4%  9.0%  3.2%  0.1%&lt;br /&gt;[libx264 @ 00000000028464c0] ref B L0: 92.2%  6.5%  1.4%&lt;br /&gt;[libx264 @ 00000000028464c0] ref B L1: 98.6%  1.4%&lt;br /&gt;[libx264 @ 00000000028464c0] kb/s:1406.00&lt;br /&gt;[aac @ 000000000292d000] Qavg: 23248.646&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.mp4 -filter_complex "[0]pad=w=1138"x=iw+79:color=black" G:\1\0\temp2.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 1265 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1098x640 [SAR 1:1 DAR 549:320], 1173 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;[pad @ 0000000000630180] Cannot find color 'black G'&lt;br /&gt;[pad @ 0000000000630180] Unable to parse option value "black G" as color&lt;br /&gt;[pad @ 0000000000630180] Cannot find color 'black G'&lt;br /&gt;[pad @ 0000000000630180] Unable to parse option value "black G" as color&lt;br /&gt;[pad @ 0000000000630180] Error setting option color to value black G.&lt;br /&gt;[Parsed_pad_0 @ 000000000285fe40] Error applying options to the filter.&lt;br /&gt;[AVFilterGraph @ 000000000059c740] Error initializing filter 'pad' with args 'w=1138x=iw+79:color=black G:10temp2.mp4 -y'&lt;br /&gt;Error initializing complex filters.&lt;br /&gt;Invalid argument&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.mp4 -filter_complex "[0]pad=w=1138:x=iw+79:color=black" G:\1\0\temp2.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 1265 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1098x640 [SAR 1:1 DAR 549:320], 1173 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (h264) -&gt; pad (graph 0)&lt;br /&gt;  pad (graph 0) -&gt; Stream #0:0 (libx264)&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000027b0540] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000027b0540] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000027b0540] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000027b0540] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame=  578 fps= 15 q=-1.0 Lsize=    4227kB time=00:00:23.01 bitrate=1504.8kbits/s speed=0.595x&lt;br /&gt;video:3969kB audio:238kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.473471%&lt;br /&gt;[libx264 @ 00000000027b0540] frame I:7     Avg QP:20.20  size: 32428&lt;br /&gt;[libx264 @ 00000000027b0540] frame P:202   Avg QP:23.02  size: 12175&lt;br /&gt;[libx264 @ 00000000027b0540] frame B:369   Avg QP:24.28  size:  3732&lt;br /&gt;[libx264 @ 00000000027b0540] consecutive B-frames:  5.7% 21.1% 19.2% 54.0%&lt;br /&gt;[libx264 @ 00000000027b0540] mb I  I16..4: 14.2% 62.5% 23.3%&lt;br /&gt;[libx264 @ 00000000027b0540] mb P  I16..4:  5.5% 19.5%  2.8%  P16..4: 27.1% 10.1%  3.7%  0.0%  0.0%    skip:31.3%&lt;br /&gt;[libx264 @ 00000000027b0540] mb B  I16..4:  0.8%  1.8%  0.4%  B16..8: 28.1%  4.9%  0.6%  direct: 1.6%  skip:61.8%  L0:44.3% L1:51.8% BI: 3.9%&lt;br /&gt;[libx264 @ 00000000027b0540] 8x8 transform intra:67.9% inter:68.2%&lt;br /&gt;[libx264 @ 00000000027b0540] coded y,uvDC,uvAC intra: 44.8% 43.2% 9.2% inter: 10.5% 8.7% 0.2%&lt;br /&gt;[libx264 @ 00000000027b0540] i16 v,h,dc,p: 36% 26%  9% 29%&lt;br /&gt;[libx264 @ 00000000027b0540] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 26% 17%  4%  5%  5%  6%  4%  5%&lt;br /&gt;[libx264 @ 00000000027b0540] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 26% 12%  5%  8%  6%  9%  5%  5%&lt;br /&gt;[libx264 @ 00000000027b0540] i8c dc,h,v,p: 61% 18% 16%  4%&lt;br /&gt;[libx264 @ 00000000027b0540] Weighted P-Frames: Y:6.9% UV:5.0%&lt;br /&gt;[libx264 @ 00000000027b0540] ref P L0: 71.3% 16.4%  9.0%  3.2%  0.1%&lt;br /&gt;[libx264 @ 00000000027b0540] ref B L0: 92.2%  6.5%  1.4%&lt;br /&gt;[libx264 @ 00000000027b0540] ref B L1: 98.6%  1.4%&lt;br /&gt;[libx264 @ 00000000027b0540] kb/s:1406.00&lt;br /&gt;[aac @ 0000000000483a00] Qavg: 23248.646&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.mp4 -filter_complex "[0]pad=w=1138:x=iw:color=black" G:\1\0\temp2.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 1265 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1098x640 [SAR 1:1 DAR 549:320], 1173 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (h264) -&gt; pad (graph 0)&lt;br /&gt;  pad (graph 0) -&gt; Stream #0:0 (libx264)&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000024d0540] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000024d0540] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000024d0540] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000024d0540] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame=  578 fps= 15 q=-1.0 Lsize=    4227kB time=00:00:23.01 bitrate=1504.8kbits/s speed=0.611x&lt;br /&gt;video:3969kB audio:238kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.473471%&lt;br /&gt;[libx264 @ 00000000024d0540] frame I:7     Avg QP:20.20  size: 32428&lt;br /&gt;[libx264 @ 00000000024d0540] frame P:202   Avg QP:23.02  size: 12175&lt;br /&gt;[libx264 @ 00000000024d0540] frame B:369   Avg QP:24.28  size:  3732&lt;br /&gt;[libx264 @ 00000000024d0540] consecutive B-frames:  5.7% 21.1% 19.2% 54.0%&lt;br /&gt;[libx264 @ 00000000024d0540] mb I  I16..4: 14.2% 62.5% 23.3%&lt;br /&gt;[libx264 @ 00000000024d0540] mb P  I16..4:  5.5% 19.5%  2.8%  P16..4: 27.1% 10.1%  3.7%  0.0%  0.0%    skip:31.3%&lt;br /&gt;[libx264 @ 00000000024d0540] mb B  I16..4:  0.8%  1.8%  0.4%  B16..8: 28.1%  4.9%  0.6%  direct: 1.6%  skip:61.8%  L0:44.3% L1:51.8% BI: 3.9%&lt;br /&gt;[libx264 @ 00000000024d0540] 8x8 transform intra:67.9% inter:68.2%&lt;br /&gt;[libx264 @ 00000000024d0540] coded y,uvDC,uvAC intra: 44.8% 43.2% 9.2% inter: 10.5% 8.7% 0.2%&lt;br /&gt;[libx264 @ 00000000024d0540] i16 v,h,dc,p: 36% 26%  9% 29%&lt;br /&gt;[libx264 @ 00000000024d0540] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 26% 17%  4%  5%  5%  6%  4%  5%&lt;br /&gt;[libx264 @ 00000000024d0540] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 26% 12%  5%  8%  6%  9%  5%  5%&lt;br /&gt;[libx264 @ 00000000024d0540] i8c dc,h,v,p: 61% 18% 16%  4%&lt;br /&gt;[libx264 @ 00000000024d0540] Weighted P-Frames: Y:6.9% UV:5.0%&lt;br /&gt;[libx264 @ 00000000024d0540] ref P L0: 71.3% 16.4%  9.0%  3.2%  0.1%&lt;br /&gt;[libx264 @ 00000000024d0540] ref B L0: 92.2%  6.5%  1.4%&lt;br /&gt;[libx264 @ 00000000024d0540] ref B L1: 98.6%  1.4%&lt;br /&gt;[libx264 @ 00000000024d0540] kb/s:1406.00&lt;br /&gt;[aac @ 0000000000447600] Qavg: 23248.646&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -i G:\1\0\temp1.mp4 -filter_complex "[0]pad=w=1138:x=39:color=black" G:\1\0\temp2.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 1265 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1098x640 [SAR 1:1 DAR 549:320], 1173 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 (h264) -&gt; pad (graph 0)&lt;br /&gt;  pad (graph 0) -&gt; Stream #0:0 (libx264)&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000025f0540] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000025f0540] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000025f0540] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000025f0540] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'G:\1\0\temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame=  578 fps= 11 q=-1.0 Lsize=    4411kB time=00:00:23.01 bitrate=1570.3kbits/s speed=0.456x&lt;br /&gt;video:4153kB audio:238kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.456409%&lt;br /&gt;[libx264 @ 00000000025f0540] frame I:6     Avg QP:20.20  size: 37214&lt;br /&gt;[libx264 @ 00000000025f0540] frame P:188   Avg QP:22.97  size: 13103&lt;br /&gt;[libx264 @ 00000000025f0540] frame B:384   Avg QP:24.14  size:  4075&lt;br /&gt;[libx264 @ 00000000025f0540] consecutive B-frames:  4.8% 15.6% 12.5% 67.1%&lt;br /&gt;[libx264 @ 00000000025f0540] mb I  I16..4: 12.6% 72.5% 14.9%&lt;br /&gt;[libx264 @ 00000000025f0540] mb P  I16..4:  4.9% 21.6%  2.5%  P16..4: 22.5% 12.2%  5.0%  0.0%  0.0%    skip:31.2%&lt;br /&gt;[libx264 @ 00000000025f0540] mb B  I16..4:  0.8%  2.1%  0.3%  B16..8: 27.4%  6.7%  1.0%  direct: 1.8%  skip:59.9%  L0:44.7% L1:51.2% BI: 4.1%&lt;br /&gt;[libx264 @ 00000000025f0540] 8x8 transform intra:72.5% inter:76.0%&lt;br /&gt;[libx264 @ 00000000025f0540] coded y,uvDC,uvAC intra: 45.7% 44.9% 6.2% inter: 10.5% 9.1% 0.1%&lt;br /&gt;[libx264 @ 00000000025f0540] i16 v,h,dc,p: 34% 28%  7% 31%&lt;br /&gt;[libx264 @ 00000000025f0540] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 25% 16%  4%  5%  5%  6%  5%  5%&lt;br /&gt;[libx264 @ 00000000025f0540] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 28% 12%  4%  7%  6%  9%  5%  5%&lt;br /&gt;[libx264 @ 00000000025f0540] i8c dc,h,v,p: 60% 20% 16%  5%&lt;br /&gt;[libx264 @ 00000000025f0540] Weighted P-Frames: Y:6.9% UV:4.8%&lt;br /&gt;[libx264 @ 00000000025f0540] ref P L0: 70.5% 16.4%  9.5%  3.5%  0.1%&lt;br /&gt;[libx264 @ 00000000025f0540] ref B L0: 92.7%  6.0%  1.4%&lt;br /&gt;[libx264 @ 00000000025f0540] ref B L1: 98.2%  1.8%&lt;br /&gt;[libx264 @ 00000000025f0540] kb/s:1471.13&lt;br /&gt;[aac @ 0000000000477600] Qavg: 23248.646&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -f concat -i "G:\1\0\temp1.txt" -c copy "G:\1\0\temp1.mp4"&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[concat @ 000000000034a600] Unsafe file name 'G:\1\0\temp2.mp4'&lt;br /&gt;G:\1\0\temp1.txt: Operation not permitted&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -f concat -i "G:\1\0\temp1.txt" -c copy "G:\1\0\temp1.mp4"&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[concat @ 000000000034a600] Unsafe file name 'G:/1/0/temp2.mp4'&lt;br /&gt;G:\1\0\temp1.txt: Operation not permitted&lt;br /&gt;&lt;br /&gt;C:\&gt;cd G:\1\0\ &amp;&amp; g:&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -f concat -i "temp1.txt" -c copy "temp1.mp4"&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000000564900] Auto-inserting h264_mp4toannexb bitstream filter&lt;br /&gt;Input #0, concat, from 'temp1.txt':&lt;br /&gt;  Duration: N/A, start: -0.023220, bitrate: 1556 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1471 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;File 'temp1.mp4' already exists. Overwrite? [y/N] y&lt;br /&gt;Output #0, mp4, to 'temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=2-31, 1471 kb/s, 25 fps, 25 tbr, 12800 tbn, 12800 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (copy)&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000028283c0] Auto-inserting h264_mp4toannexb bitstream filter&lt;br /&gt;frame= 1538 fps=0.0 q=-1.0 Lsize=   13166kB time=00:01:58.21 bitrate= 912.4kbits/s speed= 473x&lt;br /&gt;video:12897kB audio:238kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.232201%&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -f concat -i "temp1.txt" "temp1.mp4"&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000004a4780] Auto-inserting h264_mp4toannexb bitstream filter&lt;br /&gt;Input #0, concat, from 'temp1.txt':&lt;br /&gt;  Duration: N/A, start: -0.023220, bitrate: 1556 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1471 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;File 'temp1.mp4' already exists. Overwrite? [y/N] y&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 0000000002699080] using SAR=1/1&lt;br /&gt;[libx264 @ 0000000002699080] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 0000000002699080] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 0000000002699080] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 25 fps, 12800 tbn, 25 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000074ef640] Auto-inserting h264_mp4toannexb bitstream filter0 speed=0.641x&lt;br /&gt;More than 1000 frames duplicated    7680kB time=00:01:21.48 bitrate= 772.2kbits/s dup=996 drop=0 speed=0.745x&lt;br /&gt;frame= 2961 fps= 18 q=-1.0 Lsize=   14129kB time=00:01:58.32 bitrate= 978.2kbits/s dup=1423 drop=0 speed=0.711x&lt;br /&gt;video:13843kB audio:238kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.338131%&lt;br /&gt;[libx264 @ 0000000002699080] frame I:63    Avg QP:18.05  size: 24113&lt;br /&gt;[libx264 @ 0000000002699080] frame P:857   Avg QP:20.77  size:  9625&lt;br /&gt;[libx264 @ 0000000002699080] frame B:2041  Avg QP:20.31  size:  2159&lt;br /&gt;[libx264 @ 0000000002699080] consecutive B-frames:  3.9% 10.5%  6.6% 79.0%&lt;br /&gt;[libx264 @ 0000000002699080] mb I  I16..4: 16.2% 74.0%  9.8%&lt;br /&gt;[libx264 @ 0000000002699080] mb P  I16..4:  6.9% 26.2%  1.4%  P16..4: 24.0%  6.4%  2.3%  0.0%  0.0%    skip:33.0%&lt;br /&gt;[libx264 @ 0000000002699080] mb B  I16..4:  0.6%  1.9%  0.1%  B16..8: 17.2%  2.4%  0.3%  direct: 1.0%  skip:76.5%  L0:47.3% L1:49.5% BI: 3.1%&lt;br /&gt;[libx264 @ 0000000002699080] 8x8 transform intra:75.2% inter:87.0%&lt;br /&gt;[libx264 @ 0000000002699080] coded y,uvDC,uvAC intra: 42.1% 55.0% 5.4% inter: 5.5% 7.8% 0.0%&lt;br /&gt;[libx264 @ 0000000002699080] i16 v,h,dc,p: 32% 23%  9% 36%&lt;br /&gt;[libx264 @ 0000000002699080] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 20% 19%  5%  5%  6%  5%  6%  5%&lt;br /&gt;[libx264 @ 0000000002699080] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 20% 11%  5%  8%  7%  7%  6%  4%&lt;br /&gt;[libx264 @ 0000000002699080] i8c dc,h,v,p: 56% 20% 21%  3%&lt;br /&gt;[libx264 @ 0000000002699080] Weighted P-Frames: Y:2.5% UV:1.9%&lt;br /&gt;[libx264 @ 0000000002699080] ref P L0: 68.2% 10.1% 13.5%  8.1%  0.1%&lt;br /&gt;[libx264 @ 0000000002699080] ref B L0: 90.2%  7.0%  2.8%&lt;br /&gt;[libx264 @ 0000000002699080] ref B L1: 98.9%  1.1%&lt;br /&gt;[libx264 @ 0000000002699080] kb/s:957.43&lt;br /&gt;[aac @ 00000000004b8a40] Qavg: 23246.613&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -f concat -safe 0 -i "temp1.txt" "temp1.mp4"&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000000504ac0] Auto-inserting h264_mp4toannexb bitstream filter&lt;br /&gt;Input #0, concat, from 'temp1.txt':&lt;br /&gt;  Duration: N/A, start: -0.023220, bitrate: 1556 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1471 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;File 'temp1.mp4' already exists. Overwrite? [y/N] y&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 0000000000519080] using SAR=1/1&lt;br /&gt;[libx264 @ 0000000000519080] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 0000000000519080] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 0000000000519080] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 25 fps, 12800 tbn, 25 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000074ab800] Auto-inserting h264_mp4toannexb bitstream filter0 speed=0.838x&lt;br /&gt;More than 1000 frames duplicated    7680kB time=00:01:21.80 bitrate= 769.1kbits/s dup=1000 drop=0 speed=0.987x&lt;br /&gt;frame= 2961 fps= 23 q=-1.0 Lsize=   14129kB time=00:01:58.32 bitrate= 978.2kbits/s dup=1423 drop=0 speed=0.911x&lt;br /&gt;video:13843kB audio:238kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.338131%&lt;br /&gt;[libx264 @ 0000000000519080] frame I:63    Avg QP:18.05  size: 24113&lt;br /&gt;[libx264 @ 0000000000519080] frame P:857   Avg QP:20.77  size:  9625&lt;br /&gt;[libx264 @ 0000000000519080] frame B:2041  Avg QP:20.31  size:  2159&lt;br /&gt;[libx264 @ 0000000000519080] consecutive B-frames:  3.9% 10.5%  6.6% 79.0%&lt;br /&gt;[libx264 @ 0000000000519080] mb I  I16..4: 16.2% 74.0%  9.8%&lt;br /&gt;[libx264 @ 0000000000519080] mb P  I16..4:  6.9% 26.2%  1.4%  P16..4: 24.0%  6.4%  2.3%  0.0%  0.0%    skip:33.0%&lt;br /&gt;[libx264 @ 0000000000519080] mb B  I16..4:  0.6%  1.9%  0.1%  B16..8: 17.2%  2.4%  0.3%  direct: 1.0%  skip:76.5%  L0:47.3% L1:49.5% BI: 3.1%&lt;br /&gt;[libx264 @ 0000000000519080] 8x8 transform intra:75.2% inter:87.0%&lt;br /&gt;[libx264 @ 0000000000519080] coded y,uvDC,uvAC intra: 42.1% 55.0% 5.4% inter: 5.5% 7.8% 0.0%&lt;br /&gt;[libx264 @ 0000000000519080] i16 v,h,dc,p: 32% 23%  9% 36%&lt;br /&gt;[libx264 @ 0000000000519080] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 20% 19%  5%  5%  6%  5%  6%  5%&lt;br /&gt;[libx264 @ 0000000000519080] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 20% 11%  5%  8%  7%  7%  6%  4%&lt;br /&gt;[libx264 @ 0000000000519080] i8c dc,h,v,p: 56% 20% 21%  3%&lt;br /&gt;[libx264 @ 0000000000519080] Weighted P-Frames: Y:2.5% UV:1.9%&lt;br /&gt;[libx264 @ 0000000000519080] ref P L0: 68.2% 10.1% 13.5%  8.1%  0.1%&lt;br /&gt;[libx264 @ 0000000000519080] ref B L0: 90.2%  7.0%  2.8%&lt;br /&gt;[libx264 @ 0000000000519080] ref B L1: 98.9%  1.1%&lt;br /&gt;[libx264 @ 0000000000519080] kb/s:957.43&lt;br /&gt;[aac @ 0000000002857c00] Qavg: 23246.613&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -f concat -i "G:\1\0\temp1.txt" -c copy "G:\1\0\temp1.mp4"&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[concat @ 000000000034a600] Unsafe file name 'G:\1\0\temp2.mp4'&lt;br /&gt;G:\1\0\temp1.txt: Operation not permitted&lt;br /&gt;&lt;br /&gt;C:\&gt;ffmpeg -f concat -i "G:\1\0\temp1.txt" -c copy "G:\1\0\temp1.mp4"&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[concat @ 000000000034a600] Unsafe file name 'G:/1/0/temp2.mp4'&lt;br /&gt;G:\1\0\temp1.txt: Operation not permitted&lt;br /&gt;&lt;br /&gt;C:\&gt;cd G:\1\0\ &amp;&amp; g:&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -f concat -i "temp1.txt" -c copy "temp1.mp4"&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000000564900] Auto-inserting h264_mp4toannexb bitstream filter&lt;br /&gt;Input #0, concat, from 'temp1.txt':&lt;br /&gt;  Duration: N/A, start: -0.023220, bitrate: 1556 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1471 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;File 'temp1.mp4' already exists. Overwrite? [y/N] y&lt;br /&gt;Output #0, mp4, to 'temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=2-31, 1471 kb/s, 25 fps, 25 tbr, 12800 tbn, 12800 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (copy)&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000028283c0] Auto-inserting h264_mp4toannexb bitstream filter&lt;br /&gt;frame= 1538 fps=0.0 q=-1.0 Lsize=   13166kB time=00:01:58.21 bitrate= 912.4kbits/s speed= 473x&lt;br /&gt;video:12897kB audio:238kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.232201%&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -f concat -i "temp1.txt" "temp1.mp4"&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000004a4780] Auto-inserting h264_mp4toannexb bitstream filter&lt;br /&gt;Input #0, concat, from 'temp1.txt':&lt;br /&gt;  Duration: N/A, start: -0.023220, bitrate: 1556 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1471 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;File 'temp1.mp4' already exists. Overwrite? [y/N] y&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 0000000002699080] using SAR=1/1&lt;br /&gt;[libx264 @ 0000000002699080] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 0000000002699080] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 0000000002699080] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 25 fps, 12800 tbn, 25 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000074ef640] Auto-inserting h264_mp4toannexb bitstream filter0 speed=0.641x&lt;br /&gt;More than 1000 frames duplicated    7680kB time=00:01:21.48 bitrate= 772.2kbits/s dup=996 drop=0 speed=0.745x&lt;br /&gt;frame= 2961 fps= 18 q=-1.0 Lsize=   14129kB time=00:01:58.32 bitrate= 978.2kbits/s dup=1423 drop=0 speed=0.711x&lt;br /&gt;video:13843kB audio:238kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.338131%&lt;br /&gt;[libx264 @ 0000000002699080] frame I:63    Avg QP:18.05  size: 24113&lt;br /&gt;[libx264 @ 0000000002699080] frame P:857   Avg QP:20.77  size:  9625&lt;br /&gt;[libx264 @ 0000000002699080] frame B:2041  Avg QP:20.31  size:  2159&lt;br /&gt;[libx264 @ 0000000002699080] consecutive B-frames:  3.9% 10.5%  6.6% 79.0%&lt;br /&gt;[libx264 @ 0000000002699080] mb I  I16..4: 16.2% 74.0%  9.8%&lt;br /&gt;[libx264 @ 0000000002699080] mb P  I16..4:  6.9% 26.2%  1.4%  P16..4: 24.0%  6.4%  2.3%  0.0%  0.0%    skip:33.0%&lt;br /&gt;[libx264 @ 0000000002699080] mb B  I16..4:  0.6%  1.9%  0.1%  B16..8: 17.2%  2.4%  0.3%  direct: 1.0%  skip:76.5%  L0:47.3% L1:49.5% BI: 3.1%&lt;br /&gt;[libx264 @ 0000000002699080] 8x8 transform intra:75.2% inter:87.0%&lt;br /&gt;[libx264 @ 0000000002699080] coded y,uvDC,uvAC intra: 42.1% 55.0% 5.4% inter: 5.5% 7.8% 0.0%&lt;br /&gt;[libx264 @ 0000000002699080] i16 v,h,dc,p: 32% 23%  9% 36%&lt;br /&gt;[libx264 @ 0000000002699080] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 20% 19%  5%  5%  6%  5%  6%  5%&lt;br /&gt;[libx264 @ 0000000002699080] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 20% 11%  5%  8%  7%  7%  6%  4%&lt;br /&gt;[libx264 @ 0000000002699080] i8c dc,h,v,p: 56% 20% 21%  3%&lt;br /&gt;[libx264 @ 0000000002699080] Weighted P-Frames: Y:2.5% UV:1.9%&lt;br /&gt;[libx264 @ 0000000002699080] ref P L0: 68.2% 10.1% 13.5%  8.1%  0.1%&lt;br /&gt;[libx264 @ 0000000002699080] ref B L0: 90.2%  7.0%  2.8%&lt;br /&gt;[libx264 @ 0000000002699080] ref B L1: 98.9%  1.1%&lt;br /&gt;[libx264 @ 0000000002699080] kb/s:957.43&lt;br /&gt;[aac @ 00000000004b8a40] Qavg: 23246.613&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -f concat -safe 0 -i "temp1.txt" "temp1.mp4"&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000000504ac0] Auto-inserting h264_mp4toannexb bitstream filter&lt;br /&gt;Input #0, concat, from 'temp1.txt':&lt;br /&gt;  Duration: N/A, start: -0.023220, bitrate: 1556 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1471 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;File 'temp1.mp4' already exists. Overwrite? [y/N] y&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 0000000000519080] using SAR=1/1&lt;br /&gt;[libx264 @ 0000000000519080] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 0000000000519080] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 0000000000519080] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 25 fps, 12800 tbn, 25 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000074ab800] Auto-inserting h264_mp4toannexb bitstream filter0 speed=0.838x&lt;br /&gt;More than 1000 frames duplicated    7680kB time=00:01:21.80 bitrate= 769.1kbits/s dup=1000 drop=0 speed=0.987x&lt;br /&gt;frame= 2961 fps= 23 q=-1.0 Lsize=   14129kB time=00:01:58.32 bitrate= 978.2kbits/s dup=1423 drop=0 speed=0.911x&lt;br /&gt;video:13843kB audio:238kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.338131%&lt;br /&gt;[libx264 @ 0000000000519080] frame I:63    Avg QP:18.05  size: 24113&lt;br /&gt;[libx264 @ 0000000000519080] frame P:857   Avg QP:20.77  size:  9625&lt;br /&gt;[libx264 @ 0000000000519080] frame B:2041  Avg QP:20.31  size:  2159&lt;br /&gt;[libx264 @ 0000000000519080] consecutive B-frames:  3.9% 10.5%  6.6% 79.0%&lt;br /&gt;[libx264 @ 0000000000519080] mb I  I16..4: 16.2% 74.0%  9.8%&lt;br /&gt;[libx264 @ 0000000000519080] mb P  I16..4:  6.9% 26.2%  1.4%  P16..4: 24.0%  6.4%  2.3%  0.0%  0.0%    skip:33.0%&lt;br /&gt;[libx264 @ 0000000000519080] mb B  I16..4:  0.6%  1.9%  0.1%  B16..8: 17.2%  2.4%  0.3%  direct: 1.0%  skip:76.5%  L0:47.3% L1:49.5% BI: 3.1%&lt;br /&gt;[libx264 @ 0000000000519080] 8x8 transform intra:75.2% inter:87.0%&lt;br /&gt;[libx264 @ 0000000000519080] coded y,uvDC,uvAC intra: 42.1% 55.0% 5.4% inter: 5.5% 7.8% 0.0%&lt;br /&gt;[libx264 @ 0000000000519080] i16 v,h,dc,p: 32% 23%  9% 36%&lt;br /&gt;[libx264 @ 0000000000519080] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 20% 19%  5%  5%  6%  5%  6%  5%&lt;br /&gt;[libx264 @ 0000000000519080] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 20% 11%  5%  8%  7%  7%  6%  4%&lt;br /&gt;[libx264 @ 0000000000519080] i8c dc,h,v,p: 56% 20% 21%  3%&lt;br /&gt;[libx264 @ 0000000000519080] Weighted P-Frames: Y:2.5% UV:1.9%&lt;br /&gt;[libx264 @ 0000000000519080] ref P L0: 68.2% 10.1% 13.5%  8.1%  0.1%&lt;br /&gt;[libx264 @ 0000000000519080] ref B L0: 90.2%  7.0%  2.8%&lt;br /&gt;[libx264 @ 0000000000519080] ref B L1: 98.9%  1.1%&lt;br /&gt;[libx264 @ 0000000000519080] kb/s:957.43&lt;br /&gt;[aac @ 0000000002857c00] Qavg: 23246.613&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffprobe temp3.mp4&lt;br /&gt;ffprobe version git-2020-06-20-29ea4e1 Copyright (c) 2007-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp3.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:40.04, start: 0.000000, bitrate: 1791 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 4095:4096 DAR 466011:262144], 1788 kb/s, SAR 5120:5121 DAR 16:9, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffprobe temp2.mp4&lt;br /&gt;ffprobe version git-2020-06-20-29ea4e1 Copyright (c) 2007-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 1562 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1471 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -i temp2.mp4 -filter:v fps=23.98 temp1.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.12, start: 0.000000, bitrate: 1562 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1471 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 0000000002666680] using SAR=1/1&lt;br /&gt;[libx264 @ 0000000002666680] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 0000000002666680] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 0000000002666680] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 23.98 fps, 19184 tbn, 23.98 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame=  554 fps= 19 q=-1.0 Lsize=    4182kB time=00:00:23.01 bitrate=1488.8kbits/s speed=0.801x&lt;br /&gt;video:3925kB audio:238kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.443579%&lt;br /&gt;[libx264 @ 0000000002666680] frame I:6     Avg QP:19.69  size: 36836&lt;br /&gt;[libx264 @ 0000000002666680] frame P:191   Avg QP:22.78  size: 12566&lt;br /&gt;[libx264 @ 0000000002666680] frame B:357   Avg QP:23.91  size:  3915&lt;br /&gt;[libx264 @ 0000000002666680] consecutive B-frames:  5.4% 21.3% 14.1% 59.2%&lt;br /&gt;[libx264 @ 0000000002666680] mb I  I16..4: 12.9% 73.1% 14.0%&lt;br /&gt;[libx264 @ 0000000002666680] mb P  I16..4:  4.9% 21.8%  2.2%  P16..4: 24.5% 11.4%  4.6%  0.0%  0.0%    skip:30.6%&lt;br /&gt;[libx264 @ 0000000002666680] mb B  I16..4:  0.8%  2.3%  0.3%  B16..8: 28.7%  5.7%  0.8%  direct: 1.5%  skip:60.0%  L0:45.4% L1:50.7% BI: 4.0%&lt;br /&gt;[libx264 @ 0000000002666680] 8x8 transform intra:74.0% inter:78.4%&lt;br /&gt;[libx264 @ 0000000002666680] coded y,uvDC,uvAC intra: 44.7% 46.0% 5.6% inter: 10.0% 9.9% 0.1%&lt;br /&gt;[libx264 @ 0000000002666680] i16 v,h,dc,p: 33% 28%  7% 32%&lt;br /&gt;[libx264 @ 0000000002666680] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 24% 15%  4%  5%  6%  6%  5%  5%&lt;br /&gt;[libx264 @ 0000000002666680] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 27% 11%  4%  7%  6%  9%  5%  5%&lt;br /&gt;[libx264 @ 0000000002666680] i8c dc,h,v,p: 58% 20% 17%  5%&lt;br /&gt;[libx264 @ 0000000002666680] Weighted P-Frames: Y:5.8% UV:4.2%&lt;br /&gt;[libx264 @ 0000000002666680] ref P L0: 71.2% 16.5%  9.0%  3.3%  0.1%&lt;br /&gt;[libx264 @ 0000000002666680] ref B L0: 92.6%  6.1%  1.3%&lt;br /&gt;[libx264 @ 0000000002666680] ref B L1: 98.3%  1.7%&lt;br /&gt;[libx264 @ 0000000002666680] kb/s:1391.60&lt;br /&gt;[aac @ 000000000047a640] Qavg: 23246.613&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -f concat -safe 0 -i "temp1.txt" temp4.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000000644b40] Auto-inserting h264_mp4toannexb bitstream filter&lt;br /&gt;Input #0, concat, from 'temp1.txt':&lt;br /&gt;  Duration: N/A, start: -0.023220, bitrate: 1476 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1391 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 0000000000658240] using SAR=1/1&lt;br /&gt;[libx264 @ 0000000000658240] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 0000000000658240] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 0000000000658240] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'temp4.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 23.98 fps, 19184 tbn, 23.98 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000007311400] Auto-inserting h264_mp4toannexb bitstream filter0 speed=0.897x&lt;br /&gt;frame= 1895 fps= 19 q=-1.0 Lsize=   12891kB time=00:01:18.89 bitrate=1338.5kbits/s dup=381 drop=0 speed=0.771x&lt;br /&gt;video:12619kB audio:239kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.259414%&lt;br /&gt;[libx264 @ 0000000000658240] frame I:51    Avg QP:19.10  size: 23140&lt;br /&gt;[libx264 @ 0000000000658240] frame P:659   Avg QP:21.64  size: 10896&lt;br /&gt;[libx264 @ 0000000000658240] frame B:1185  Avg QP:21.98  size:  3849&lt;br /&gt;[libx264 @ 0000000000658240] consecutive B-frames:  7.9% 21.0% 15.8% 55.3%&lt;br /&gt;[libx264 @ 0000000000658240] mb I  I16..4: 15.7% 76.0%  8.3%&lt;br /&gt;[libx264 @ 0000000000658240] mb P  I16..4:  8.3% 32.3%  1.7%  P16..4: 25.0%  6.6%  2.3%  0.0%  0.0%    skip:23.8%&lt;br /&gt;[libx264 @ 0000000000658240] mb B  I16..4:  1.3%  3.9%  0.3%  B16..8: 27.1%  4.1%  0.5%  direct: 1.8%  skip:61.1%  L0:49.0% L1:47.8% BI: 3.3%&lt;br /&gt;[libx264 @ 0000000000658240] 8x8 transform intra:75.5% inter:88.0%&lt;br /&gt;[libx264 @ 0000000000658240] coded y,uvDC,uvAC intra: 41.0% 54.3% 4.8% inter: 8.5% 12.4% 0.0%&lt;br /&gt;[libx264 @ 0000000000658240] i16 v,h,dc,p: 31% 23%  9% 37%&lt;br /&gt;[libx264 @ 0000000000658240] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 20% 18%  5%  5%  6%  5%  6%  5%&lt;br /&gt;[libx264 @ 0000000000658240] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 20% 11%  5%  8%  7%  7%  6%  4%&lt;br /&gt;[libx264 @ 0000000000658240] i8c dc,h,v,p: 56% 20% 21%  3%&lt;br /&gt;[libx264 @ 0000000000658240] Weighted P-Frames: Y:3.8% UV:3.0%&lt;br /&gt;[libx264 @ 0000000000658240] ref P L0: 70.3% 11.0% 13.2%  5.5%  0.0%&lt;br /&gt;[libx264 @ 0000000000658240] ref B L0: 89.0%  9.0%  2.0%&lt;br /&gt;[libx264 @ 0000000000658240] ref B L1: 98.4%  1.6%&lt;br /&gt;[libx264 @ 0000000000658240] kb/s:1308.11&lt;br /&gt;[aac @ 0000000002904380] Qavg: 23247.742&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffprobe temp1.mp4&lt;br /&gt;ffprobe version git-2020-06-20-29ea4e1 Copyright (c) 2007-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.10, start: 0.000000, bitrate: 1482 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1391 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;type temp1.txt&lt;br /&gt;file 'temp1.mp4'&lt;br /&gt;file 'temp3.mp4'&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -i "concat:temp1.mp4|temp3.mp4|" temp4.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 000000000051a4c0] Found duplicated MOOV Atom. Skipped it&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'concat:temp1.mp4|temp3.mp4|':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;  Duration: 00:00:23.10, start: 0.000000, bitrate: 4587 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1391 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000005301c0] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000005301c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000005301c0] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000005301c0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'temp4.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 23.98 fps, 19184 tbn, 23.98 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame=  554 fps= 20 q=-1.0 Lsize=    4012kB time=00:00:23.01 bitrate=1428.2kbits/s speed=0.814x&lt;br /&gt;video:3755kB audio:239kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.463286%&lt;br /&gt;[libx264 @ 00000000005301c0] frame I:6     Avg QP:19.66  size: 36481&lt;br /&gt;[libx264 @ 00000000005301c0] frame P:195   Avg QP:22.59  size: 11928&lt;br /&gt;[libx264 @ 00000000005301c0] frame B:353   Avg QP:23.86  size:  3680&lt;br /&gt;[libx264 @ 00000000005301c0] consecutive B-frames:  5.1% 25.6% 13.0% 56.3%&lt;br /&gt;[libx264 @ 00000000005301c0] mb I  I16..4: 13.0% 73.3% 13.7%&lt;br /&gt;[libx264 @ 00000000005301c0] mb P  I16..4:  4.8% 21.9%  2.0%  P16..4: 24.7% 10.6%  4.2%  0.0%  0.0%    skip:31.8%&lt;br /&gt;[libx264 @ 00000000005301c0] mb B  I16..4:  0.7%  2.3%  0.3%  B16..8: 28.8%  5.0%  0.7%  direct: 1.3%  skip:61.0%  L0:44.6% L1:51.6% BI: 3.8%&lt;br /&gt;[libx264 @ 00000000005301c0] 8x8 transform intra:74.9% inter:79.7%&lt;br /&gt;[libx264 @ 00000000005301c0] coded y,uvDC,uvAC intra: 44.0% 46.7% 5.3% inter: 9.1% 9.9% 0.1%&lt;br /&gt;[libx264 @ 00000000005301c0] i16 v,h,dc,p: 31% 28%  8% 33%&lt;br /&gt;[libx264 @ 00000000005301c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 24% 15%  4%  5%  6%  6%  5%  5%&lt;br /&gt;[libx264 @ 00000000005301c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 27% 11%  4%  7%  6%  9%  5%  5%&lt;br /&gt;[libx264 @ 00000000005301c0] i8c dc,h,v,p: 58% 20% 18%  5%&lt;br /&gt;[libx264 @ 00000000005301c0] Weighted P-Frames: Y:6.2% UV:4.1%&lt;br /&gt;[libx264 @ 00000000005301c0] ref P L0: 71.5% 15.9%  9.2%  3.3%  0.1%&lt;br /&gt;[libx264 @ 00000000005301c0] ref B L0: 91.7%  7.0%  1.3%&lt;br /&gt;[libx264 @ 00000000005301c0] ref B L1: 98.7%  1.3%&lt;br /&gt;[libx264 @ 00000000005301c0] kb/s:1331.09&lt;br /&gt;[aac @ 0000000000538040] Qavg: 23247.742&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -i "concat:temp1.mp4|temp3.mp4" temp4.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 000000000035a4c0] Found duplicated MOOV Atom. Skipped it&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'concat:temp1.mp4|temp3.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;  Duration: 00:00:23.10, start: 0.000000, bitrate: 4587 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1391 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000003701c0] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000003701c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000003701c0] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000003701c0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'temp4.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 23.98 fps, 19184 tbn, 23.98 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame=  554 fps= 21 q=-1.0 Lsize=    4012kB time=00:00:23.01 bitrate=1428.2kbits/s speed=0.887x&lt;br /&gt;video:3755kB audio:239kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.463286%&lt;br /&gt;[libx264 @ 00000000003701c0] frame I:6     Avg QP:19.66  size: 36481&lt;br /&gt;[libx264 @ 00000000003701c0] frame P:195   Avg QP:22.59  size: 11928&lt;br /&gt;[libx264 @ 00000000003701c0] frame B:353   Avg QP:23.86  size:  3680&lt;br /&gt;[libx264 @ 00000000003701c0] consecutive B-frames:  5.1% 25.6% 13.0% 56.3%&lt;br /&gt;[libx264 @ 00000000003701c0] mb I  I16..4: 13.0% 73.3% 13.7%&lt;br /&gt;[libx264 @ 00000000003701c0] mb P  I16..4:  4.8% 21.9%  2.0%  P16..4: 24.7% 10.6%  4.2%  0.0%  0.0%    skip:31.8%&lt;br /&gt;[libx264 @ 00000000003701c0] mb B  I16..4:  0.7%  2.3%  0.3%  B16..8: 28.8%  5.0%  0.7%  direct: 1.3%  skip:61.0%  L0:44.6% L1:51.6% BI: 3.8%&lt;br /&gt;[libx264 @ 00000000003701c0] 8x8 transform intra:74.9% inter:79.7%&lt;br /&gt;[libx264 @ 00000000003701c0] coded y,uvDC,uvAC intra: 44.0% 46.7% 5.3% inter: 9.1% 9.9% 0.1%&lt;br /&gt;[libx264 @ 00000000003701c0] i16 v,h,dc,p: 31% 28%  8% 33%&lt;br /&gt;[libx264 @ 00000000003701c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 24% 15%  4%  5%  6%  6%  5%  5%&lt;br /&gt;[libx264 @ 00000000003701c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 27% 11%  4%  7%  6%  9%  5%  5%&lt;br /&gt;[libx264 @ 00000000003701c0] i8c dc,h,v,p: 58% 20% 18%  5%&lt;br /&gt;[libx264 @ 00000000003701c0] Weighted P-Frames: Y:6.2% UV:4.1%&lt;br /&gt;[libx264 @ 00000000003701c0] ref P L0: 71.5% 15.9%  9.2%  3.3%  0.1%&lt;br /&gt;[libx264 @ 00000000003701c0] ref B L0: 91.7%  7.0%  1.3%&lt;br /&gt;[libx264 @ 00000000003701c0] ref B L1: 98.7%  1.3%&lt;br /&gt;[libx264 @ 00000000003701c0] kb/s:1331.09&lt;br /&gt;[aac @ 0000000000378040] Qavg: 23247.742&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffprobe temp3.mp4&lt;br /&gt;ffprobe version git-2020-06-20-29ea4e1 Copyright (c) 2007-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp3.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:40.04, start: 0.000000, bitrate: 1791 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 4095:4096 DAR 466011:262144], 1788 kb/s, SAR 5120:5121 DAR 16:9, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -i temp1.mp4 -to 00:00:23.00 temp2.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.10, start: 0.000000, bitrate: 1482 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1391 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;  Stream #0:1 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000004ed900] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000004ed900] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000004ed900] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000004ed900] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 23.98 fps, 19184 tbn, 23.98 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame=  552 fps= 20 q=-1.0 Lsize=    4005kB time=00:00:23.01 bitrate=1425.6kbits/s speed=0.82x&lt;br /&gt;video:3747kB audio:239kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.463034%&lt;br /&gt;[libx264 @ 00000000004ed900] frame I:6     Avg QP:19.66  size: 36481&lt;br /&gt;[libx264 @ 00000000004ed900] frame P:194   Avg QP:22.60  size: 11956&lt;br /&gt;[libx264 @ 00000000004ed900] frame B:352   Avg QP:23.86  size:  3688&lt;br /&gt;[libx264 @ 00000000004ed900] consecutive B-frames:  5.1% 25.4% 13.0% 56.5%&lt;br /&gt;[libx264 @ 00000000004ed900] mb I  I16..4: 13.0% 73.3% 13.7%&lt;br /&gt;[libx264 @ 00000000004ed900] mb P  I16..4:  4.8% 22.0%  2.0%  P16..4: 24.7% 10.7%  4.2%  0.0%  0.0%    skip:31.7%&lt;br /&gt;[libx264 @ 00000000004ed900] mb B  I16..4:  0.7%  2.3%  0.3%  B16..8: 28.8%  5.0%  0.7%  direct: 1.3%  skip:60.9%  L0:44.6% L1:51.6% BI: 3.8%&lt;br /&gt;[libx264 @ 00000000004ed900] 8x8 transform intra:74.9% inter:79.7%&lt;br /&gt;[libx264 @ 00000000004ed900] coded y,uvDC,uvAC intra: 44.1% 46.7% 5.3% inter: 9.1% 9.9% 0.1%&lt;br /&gt;[libx264 @ 00000000004ed900] i16 v,h,dc,p: 31% 28%  8% 33%&lt;br /&gt;[libx264 @ 00000000004ed900] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 24% 15%  4%  5%  6%  6%  5%  5%&lt;br /&gt;[libx264 @ 00000000004ed900] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 28% 11%  4%  7%  6%  9%  5%  5%&lt;br /&gt;[libx264 @ 00000000004ed900] i8c dc,h,v,p: 58% 20% 18%  5%&lt;br /&gt;[libx264 @ 00000000004ed900] Weighted P-Frames: Y:6.2% UV:4.1%&lt;br /&gt;[libx264 @ 00000000004ed900] ref P L0: 71.4% 16.0%  9.3%  3.3%  0.1%&lt;br /&gt;[libx264 @ 00000000004ed900] ref B L0: 91.7%  7.0%  1.3%&lt;br /&gt;[libx264 @ 00000000004ed900] ref B L1: 98.7%  1.3%&lt;br /&gt;[libx264 @ 00000000004ed900] kb/s:1333.41&lt;br /&gt;[aac @ 00000000004ef0c0] Qavg: 23247.760&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffprobe temp2.mp4&lt;br /&gt;ffprobe version git-2020-06-20-29ea4e1 Copyright (c) 2007-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.02, start: 0.000000, bitrate: 1424 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1333 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -i temp1.mp4 -an -c:v copy temp2.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.10, start: 0.000000, bitrate: 1482 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1391 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 84 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Output #0, mp4, to 'temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=2-31, 1391 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 19184 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;frame=  554 fps=0.0 q=-1.0 Lsize=    3932kB time=00:00:22.97 bitrate=1401.9kbits/s speed=2.3e+03x&lt;br /&gt;video:3925kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.180625%&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -f concat -safe 0 -i "temp1.txt" temp4.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000003b4b40] Auto-inserting h264_mp4toannexb bitstream filter&lt;br /&gt;Input #0, concat, from 'temp1.txt':&lt;br /&gt;  Duration: N/A, start: 0.000000, bitrate: 1391 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1391 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000003c6f80] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000003c6f80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000003c6f80] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000003c6f80] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'temp4.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 23.98 fps, 19184 tbn, 23.98 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;Error writing trailer of temp4.mp4: Immediate exit requestedbitrate= 725.4kbits/s speed=1.16x&lt;br /&gt;frame=  262 fps= 27 q=-1.0 Lsize=    1280kB time=00:00:10.80 bitrate= 970.9kbits/s speed=1.11x&lt;br /&gt;video:1381kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown&lt;br /&gt;[libx264 @ 00000000003c6f80] frame I:3     Avg QP:20.06  size: 55979&lt;br /&gt;[libx264 @ 00000000003c6f80] frame P:105   Avg QP:21.97  size:  9692&lt;br /&gt;[libx264 @ 00000000003c6f80] frame B:154   Avg QP:20.88  size:  1477&lt;br /&gt;[libx264 @ 00000000003c6f80] consecutive B-frames:  9.2% 33.6% 11.5% 45.8%&lt;br /&gt;[libx264 @ 00000000003c6f80] mb I  I16..4: 11.6% 65.8% 22.7%&lt;br /&gt;[libx264 @ 00000000003c6f80] mb P  I16..4:  2.5% 14.1%  1.1%  P16..4: 21.1% 10.4%  4.9%  0.0%  0.0%    skip:45.8%&lt;br /&gt;[libx264 @ 00000000003c6f80] mb B  I16..4:  0.2%  0.5%  0.1%  B16..8: 16.7%  1.8%  0.3%  direct: 1.1%  skip:79.3%  L0:40.1% L1:55.9% BI: 4.0%&lt;br /&gt;[libx264 @ 00000000003c6f80] 8x8 transform intra:77.2% inter:72.8%&lt;br /&gt;[libx264 @ 00000000003c6f80] coded y,uvDC,uvAC intra: 42.7% 44.2% 9.1% inter: 7.4% 8.6% 0.1%&lt;br /&gt;[libx264 @ 00000000003c6f80] i16 v,h,dc,p: 39% 32%  9% 21%&lt;br /&gt;[libx264 @ 00000000003c6f80] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 34% 23% 16%  3%  5%  5%  5%  5%  4%&lt;br /&gt;[libx264 @ 00000000003c6f80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 23% 10%  5%  8%  7%  8%  7%  5%&lt;br /&gt;[libx264 @ 00000000003c6f80] i8c dc,h,v,p: 59% 20% 17%  5%&lt;br /&gt;[libx264 @ 00000000003c6f80] Weighted P-Frames: Y:11.4% UV:7.6%&lt;br /&gt;[libx264 @ 00000000003c6f80] ref P L0: 72.8% 17.0%  7.4%  2.5%  0.2%&lt;br /&gt;[libx264 @ 00000000003c6f80] ref B L0: 89.6%  9.3%  1.1%&lt;br /&gt;[libx264 @ 00000000003c6f80] ref B L1: 98.7%  1.3%&lt;br /&gt;[libx264 @ 00000000003c6f80] kb/s:1034.65&lt;br /&gt;Exiting normally, received signal 2.&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -f concat -safe 0 -i "temp1.txt" -c copy temp4.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000000354d00] Auto-inserting h264_mp4toannexb bitstream filter&lt;br /&gt;Input #0, concat, from 'temp1.txt':&lt;br /&gt;  Duration: N/A, start: 0.000000, bitrate: 1391 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1391 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;Output #0, mp4, to 'temp4.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=2-31, 1391 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 19184 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000000354d00] Auto-inserting h264_mp4toannexb bitstream filter&lt;br /&gt;frame= 1514 fps=0.0 q=-1.0 Lsize=   12687kB time=00:01:18.83 bitrate=1318.3kbits/s speed= 375x&lt;br /&gt;video:12670kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.138407%&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -f concat -safe 0 -i "temp1.txt" temp4.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000004f4b40] Auto-inserting h264_mp4toannexb bitstream filter&lt;br /&gt;Input #0, concat, from 'temp1.txt':&lt;br /&gt;  Duration: N/A, start: 0.000000, bitrate: 1391 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1391 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 0000000000506f80] using SAR=1/1&lt;br /&gt;[libx264 @ 0000000000506f80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 0000000000506f80] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 0000000000506f80] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'temp4.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 23.98 fps, 19184 tbn, 23.98 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000006d65900] Auto-inserting h264_mp4toannexb bitstream filterx&lt;br /&gt;frame= 1894 fps= 18 q=-1.0 Lsize=   12659kB time=00:01:18.85 bitrate=1315.1kbits/s dup=380 drop=0 speed=0.733x&lt;br /&gt;video:12637kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.173786%&lt;br /&gt;[libx264 @ 0000000000506f80] frame I:51    Avg QP:18.84  size: 23215&lt;br /&gt;[libx264 @ 0000000000506f80] frame P:655   Avg QP:21.64  size: 10937&lt;br /&gt;[libx264 @ 0000000000506f80] frame B:1188  Avg QP:22.00  size:  3865&lt;br /&gt;[libx264 @ 0000000000506f80] consecutive B-frames:  8.2% 19.1% 15.8% 56.8%&lt;br /&gt;[libx264 @ 0000000000506f80] mb I  I16..4: 16.0% 75.6%  8.4%&lt;br /&gt;[libx264 @ 0000000000506f80] mb P  I16..4:  8.3% 32.3%  1.7%  P16..4: 25.0%  6.6%  2.3%  0.0%  0.0%    skip:23.6%&lt;br /&gt;[libx264 @ 0000000000506f80] mb B  I16..4:  1.3%  4.0%  0.2%  B16..8: 27.1%  4.1%  0.5%  direct: 1.8%  skip:61.0%  L0:49.1% L1:47.6% BI: 3.3%&lt;br /&gt;[libx264 @ 0000000000506f80] 8x8 transform intra:75.5% inter:88.1%&lt;br /&gt;[libx264 @ 0000000000506f80] coded y,uvDC,uvAC intra: 41.0% 54.3% 4.8% inter: 8.6% 12.4% 0.0%&lt;br /&gt;[libx264 @ 0000000000506f80] i16 v,h,dc,p: 31% 23%  9% 37%&lt;br /&gt;[libx264 @ 0000000000506f80] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 20% 18%  5%  5%  6%  5%  6%  5%&lt;br /&gt;[libx264 @ 0000000000506f80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 20% 11%  5%  8%  7%  7%  6%  4%&lt;br /&gt;[libx264 @ 0000000000506f80] i8c dc,h,v,p: 56% 20% 21%  3%&lt;br /&gt;[libx264 @ 0000000000506f80] Weighted P-Frames: Y:3.5% UV:2.6%&lt;br /&gt;[libx264 @ 0000000000506f80] ref P L0: 70.4% 11.0% 13.2%  5.4%  0.1%&lt;br /&gt;[libx264 @ 0000000000506f80] ref B L0: 89.1%  9.0%  1.8%&lt;br /&gt;[libx264 @ 0000000000506f80] ref B L1: 98.3%  1.7%&lt;br /&gt;[libx264 @ 0000000000506f80] kb/s:1310.67&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;echo added duration 23&lt;br /&gt;added duration 23&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -f concat -safe 0 -i "temp1.txt" temp4.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000000524b40] Auto-inserting h264_mp4toannexb bitstream filter&lt;br /&gt;Input #0, concat, from 'temp1.txt':&lt;br /&gt;  Duration: N/A, start: 0.000000, bitrate: 1391 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1391 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 0000000000536f80] using SAR=1/1&lt;br /&gt;[libx264 @ 0000000000536f80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 0000000000536f80] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 0000000000536f80] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'temp4.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 23.98 fps, 19184 tbn, 23.98 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000006d7a1c0] Auto-inserting h264_mp4toannexb bitstream filterx&lt;br /&gt;frame= 1891 fps= 20 q=-1.0 Lsize=   12637kB time=00:01:18.73 bitrate=1314.8kbits/s dup=377 drop=0 speed=0.837x&lt;br /&gt;video:12615kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.172886%&lt;br /&gt;[libx264 @ 0000000000536f80] frame I:52    Avg QP:18.98  size: 23138&lt;br /&gt;[libx264 @ 0000000000536f80] frame P:656   Avg QP:21.67  size: 10933&lt;br /&gt;[libx264 @ 0000000000536f80] frame B:1183  Avg QP:22.02  size:  3839&lt;br /&gt;[libx264 @ 0000000000536f80] consecutive B-frames:  8.1% 19.4% 18.4% 54.2%&lt;br /&gt;[libx264 @ 0000000000536f80] mb I  I16..4: 16.3% 75.1%  8.6%&lt;br /&gt;[libx264 @ 0000000000536f80] mb P  I16..4:  8.3% 32.4%  1.7%  P16..4: 25.1%  6.6%  2.3%  0.0%  0.0%    skip:23.5%&lt;br /&gt;[libx264 @ 0000000000536f80] mb B  I16..4:  1.3%  3.9%  0.2%  B16..8: 27.1%  4.1%  0.5%  direct: 1.7%  skip:61.2%  L0:48.7% L1:48.0% BI: 3.2%&lt;br /&gt;[libx264 @ 0000000000536f80] 8x8 transform intra:75.4% inter:88.1%&lt;br /&gt;[libx264 @ 0000000000536f80] coded y,uvDC,uvAC intra: 41.0% 54.3% 4.8% inter: 8.5% 12.4% 0.0%&lt;br /&gt;[libx264 @ 0000000000536f80] i16 v,h,dc,p: 31% 23%  9% 37%&lt;br /&gt;[libx264 @ 0000000000536f80] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 20% 18%  5%  5%  6%  5%  6%  5%&lt;br /&gt;[libx264 @ 0000000000536f80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 20% 11%  5%  8%  7%  7%  6%  4%&lt;br /&gt;[libx264 @ 0000000000536f80] i8c dc,h,v,p: 56% 20% 21%  3%&lt;br /&gt;[libx264 @ 0000000000536f80] Weighted P-Frames: Y:3.7% UV:2.7%&lt;br /&gt;[libx264 @ 0000000000536f80] ref P L0: 70.2% 10.9% 13.4%  5.4%  0.1%&lt;br /&gt;[libx264 @ 0000000000536f80] ref B L0: 89.0%  9.2%  1.9%&lt;br /&gt;[libx264 @ 0000000000536f80] ref B L1: 98.5%  1.5%&lt;br /&gt;[libx264 @ 0000000000536f80] kb/s:1310.42&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -f concat -safe 0 -i "temp1.txt" temp4.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000000654b40] Auto-inserting h264_mp4toannexb bitstream filter&lt;br /&gt;Input #0, concat, from 'temp1.txt':&lt;br /&gt;  Duration: 00:01:03.00, start: 0.000000, bitrate: 0 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1391 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 0000000000666f80] using SAR=1/1&lt;br /&gt;[libx264 @ 0000000000666f80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 0000000000666f80] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 0000000000666f80] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'temp4.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 23.98 fps, 19184 tbn, 23.98 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000007037540] Auto-inserting h264_mp4toannexb bitstream filter&lt;br /&gt;frame= 1891 fps= 20 q=-1.0 Lsize=   12637kB time=00:01:18.73 bitrate=1314.8kbits/s dup=377 drop=0 speed=0.84x&lt;br /&gt;video:12615kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.172886%&lt;br /&gt;[libx264 @ 0000000000666f80] frame I:52    Avg QP:18.98  size: 23138&lt;br /&gt;[libx264 @ 0000000000666f80] frame P:656   Avg QP:21.67  size: 10933&lt;br /&gt;[libx264 @ 0000000000666f80] frame B:1183  Avg QP:22.02  size:  3839&lt;br /&gt;[libx264 @ 0000000000666f80] consecutive B-frames:  8.1% 19.4% 18.4% 54.2%&lt;br /&gt;[libx264 @ 0000000000666f80] mb I  I16..4: 16.3% 75.1%  8.6%&lt;br /&gt;[libx264 @ 0000000000666f80] mb P  I16..4:  8.3% 32.4%  1.7%  P16..4: 25.1%  6.6%  2.3%  0.0%  0.0%    skip:23.5%&lt;br /&gt;[libx264 @ 0000000000666f80] mb B  I16..4:  1.3%  3.9%  0.2%  B16..8: 27.1%  4.1%  0.5%  direct: 1.7%  skip:61.2%  L0:48.7% L1:48.0% BI: 3.2%&lt;br /&gt;[libx264 @ 0000000000666f80] 8x8 transform intra:75.4% inter:88.1%&lt;br /&gt;[libx264 @ 0000000000666f80] coded y,uvDC,uvAC intra: 41.0% 54.3% 4.8% inter: 8.5% 12.4% 0.0%&lt;br /&gt;[libx264 @ 0000000000666f80] i16 v,h,dc,p: 31% 23%  9% 37%&lt;br /&gt;[libx264 @ 0000000000666f80] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 20% 18%  5%  5%  6%  5%  6%  5%&lt;br /&gt;[libx264 @ 0000000000666f80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 20% 11%  5%  8%  7%  7%  6%  4%&lt;br /&gt;[libx264 @ 0000000000666f80] i8c dc,h,v,p: 56% 20% 21%  3%&lt;br /&gt;[libx264 @ 0000000000666f80] Weighted P-Frames: Y:3.7% UV:2.7%&lt;br /&gt;[libx264 @ 0000000000666f80] ref P L0: 70.2% 10.9% 13.4%  5.4%  0.1%&lt;br /&gt;[libx264 @ 0000000000666f80] ref B L0: 89.0%  9.2%  1.9%&lt;br /&gt;[libx264 @ 0000000000666f80] ref B L1: 98.5%  1.5%&lt;br /&gt;[libx264 @ 0000000000666f80] kb/s:1310.42&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;type temp1.txt&lt;br /&gt;file 'temp2.mp4'&lt;br /&gt;duration 23&lt;br /&gt;file 'temp3.mp4'&lt;br /&gt;duration 40&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -i temp3.mp4 -vf "setsar=1:1" temp1.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp3.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:40.04, start: 0.000000, bitrate: 1791 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 4095:4096 DAR 466011:262144], 1788 kb/s, SAR 5120:5121 DAR 16:9, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000028fd040] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000028fd040] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000028fd040] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000028fd040] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 23.98 fps, 24k tbn, 23.98 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;frame=  960 fps= 16 q=-1.0 Lsize=    8278kB time=00:00:39.91 bitrate=1699.0kbits/s speed=0.659x&lt;br /&gt;video:8267kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.137093%&lt;br /&gt;[libx264 @ 00000000028fd040] frame I:36    Avg QP:19.38  size: 21058&lt;br /&gt;[libx264 @ 00000000028fd040] frame P:382   Avg QP:22.15  size: 11398&lt;br /&gt;[libx264 @ 00000000028fd040] frame B:542   Avg QP:23.37  size:  6185&lt;br /&gt;[libx264 @ 00000000028fd040] consecutive B-frames: 14.1% 27.1% 14.7% 44.2%&lt;br /&gt;[libx264 @ 00000000028fd040] mb I  I16..4: 15.4% 77.7%  6.9%&lt;br /&gt;[libx264 @ 00000000028fd040] mb P  I16..4: 11.4% 43.2%  1.9%  P16..4: 25.6%  4.6%  1.3%  0.0%  0.0%    skip:11.9%&lt;br /&gt;[libx264 @ 00000000028fd040] mb B  I16..4:  2.4%  7.6%  0.4%  B16..8: 38.3%  5.9%  0.7%  direct: 2.8%  skip:42.1%  L0:48.8% L1:48.0% BI: 3.3%&lt;br /&gt;[libx264 @ 00000000028fd040] 8x8 transform intra:76.0% inter:92.8%&lt;br /&gt;[libx264 @ 00000000028fd040] coded y,uvDC,uvAC intra: 39.5% 55.2% 4.5% inter: 11.9% 19.1% 0.0%&lt;br /&gt;[libx264 @ 00000000028fd040] i16 v,h,dc,p: 31% 22%  9% 38%&lt;br /&gt;[libx264 @ 00000000028fd040] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 19% 19%  5%  5%  6%  5%  6%  4%&lt;br /&gt;[libx264 @ 00000000028fd040] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 35% 16% 12%  5%  8%  8%  6%  7%  3%&lt;br /&gt;[libx264 @ 00000000028fd040] i8c dc,h,v,p: 56% 20% 22%  3%&lt;br /&gt;[libx264 @ 00000000028fd040] Weighted P-Frames: Y:4.5% UV:3.9%&lt;br /&gt;[libx264 @ 00000000028fd040] ref P L0: 70.9%  8.5% 14.5%  6.0%  0.0%&lt;br /&gt;[libx264 @ 00000000028fd040] ref B L0: 90.4%  8.1%  1.5%&lt;br /&gt;[libx264 @ 00000000028fd040] ref B L1: 98.1%  1.9%&lt;br /&gt;[libx264 @ 00000000028fd040] kb/s:1691.19&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;notepad temp1.txt&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;type temp1.txt&lt;br /&gt;file 'temp2.mp4'&lt;br /&gt;duration 23&lt;br /&gt;file 'temp1.mp4'&lt;br /&gt;duration 40&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -f concat -safe 0 -i temp1.txt temp4.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000000394b40] Auto-inserting h264_mp4toannexb bitstream filter&lt;br /&gt;Input #0, concat, from 'temp1.txt':&lt;br /&gt;  Duration: 00:01:03.00, start: 0.000000, bitrate: 0 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1391 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000003a6f80] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000003a6f80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000003a6f80] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000003a6f80] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'temp4.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 23.98 fps, 19184 tbn, 23.98 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 00000000071b8480] Auto-inserting h264_mp4toannexb bitstream filterx&lt;br /&gt;frame= 1891 fps= 18 q=-1.0 Lsize=   12289kB time=00:01:18.73 bitrate=1278.6kbits/s dup=377 drop=0 speed=0.732x&lt;br /&gt;video:12267kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.176774%&lt;br /&gt;[libx264 @ 00000000003a6f80] frame I:51    Avg QP:18.81  size: 22486&lt;br /&gt;[libx264 @ 00000000003a6f80] frame P:671   Avg QP:21.55  size: 10640&lt;br /&gt;[libx264 @ 00000000003a6f80] frame B:1169  Avg QP:21.90  size:  3656&lt;br /&gt;[libx264 @ 00000000003a6f80] consecutive B-frames:  8.3% 20.6% 21.6% 49.5%&lt;br /&gt;[libx264 @ 00000000003a6f80] mb I  I16..4: 16.6% 75.6%  7.7%&lt;br /&gt;[libx264 @ 00000000003a6f80] mb P  I16..4:  8.4% 33.4%  1.5%  P16..4: 24.8%  6.2%  2.1%  0.0%  0.0%    skip:23.4%&lt;br /&gt;[libx264 @ 00000000003a6f80] mb B  I16..4:  1.3%  3.9%  0.2%  B16..8: 26.7%  3.9%  0.4%  direct: 1.6%  skip:62.1%  L0:48.5% L1:48.2% BI: 3.2%&lt;br /&gt;[libx264 @ 00000000003a6f80] 8x8 transform intra:76.2% inter:88.3%&lt;br /&gt;[libx264 @ 00000000003a6f80] coded y,uvDC,uvAC intra: 39.5% 54.1% 4.3% inter: 7.8% 12.1% 0.0%&lt;br /&gt;[libx264 @ 00000000003a6f80] i16 v,h,dc,p: 31% 23% 10% 36%&lt;br /&gt;[libx264 @ 00000000003a6f80] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 21% 18%  5%  5%  5%  5%  5%  4%&lt;br /&gt;[libx264 @ 00000000003a6f80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 20% 11%  5%  8%  7%  7%  6%  4%&lt;br /&gt;[libx264 @ 00000000003a6f80] i8c dc,h,v,p: 56% 20% 21%  3%&lt;br /&gt;[libx264 @ 00000000003a6f80] Weighted P-Frames: Y:3.7% UV:2.8%&lt;br /&gt;[libx264 @ 00000000003a6f80] ref P L0: 70.7% 10.7% 13.2%  5.4%  0.0%&lt;br /&gt;[libx264 @ 00000000003a6f80] ref B L0: 89.1%  9.1%  1.8%&lt;br /&gt;[libx264 @ 00000000003a6f80] ref B L1: 98.4%  1.6%&lt;br /&gt;[libx264 @ 00000000003a6f80] kb/s:1274.26&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;zzzffmpeg -i temp1.mp4ffmpeg -i temp1.mp4 -video_track_timescale 19184 temp3.mp4&lt;br /&gt;'zzzffmpeg' is not recognized as an internal or external command,&lt;br /&gt;operable program or batch file.&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -i temp1.mp4 -video_track_timescale 19184 temp3.mp4&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp1.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:40.04, start: 0.000000, bitrate: 1693 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1691 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;File 'temp3.mp4' already exists. Overwrite? [y/N] y&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000024f09c0] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000024f09c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000024f09c0] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000024f09c0] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'temp3.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 23.98 fps, 19184 tbn, 23.98 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;frame=  960 fps= 17 q=-1.0 Lsize=    7952kB time=00:00:39.91 bitrate=1632.1kbits/s speed=0.691x&lt;br /&gt;video:7939kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.171984%&lt;br /&gt;[libx264 @ 00000000024f09c0] frame I:36    Avg QP:19.27  size: 20517&lt;br /&gt;[libx264 @ 00000000024f09c0] frame P:406   Avg QP:21.98  size: 10895&lt;br /&gt;[libx264 @ 00000000024f09c0] frame B:518   Avg QP:23.23  size:  5727&lt;br /&gt;[libx264 @ 00000000024f09c0] consecutive B-frames: 14.5% 36.2% 13.4% 35.8%&lt;br /&gt;[libx264 @ 00000000024f09c0] mb I  I16..4: 15.9% 78.2%  6.0%&lt;br /&gt;[libx264 @ 00000000024f09c0] mb P  I16..4: 11.2% 43.9%  1.6%  P16..4: 25.6%  4.1%  1.1%  0.0%  0.0%    skip:12.4%&lt;br /&gt;[libx264 @ 00000000024f09c0] mb B  I16..4:  2.3%  7.4%  0.3%  B16..8: 37.7%  5.4%  0.6%  direct: 2.4%  skip:44.0%  L0:48.4% L1:48.3% BI: 3.2%&lt;br /&gt;[libx264 @ 00000000024f09c0] 8x8 transform intra:76.9% inter:94.0%&lt;br /&gt;[libx264 @ 00000000024f09c0] coded y,uvDC,uvAC intra: 37.7% 55.1% 4.0% inter: 10.1% 18.4% 0.0%&lt;br /&gt;[libx264 @ 00000000024f09c0] i16 v,h,dc,p: 31% 22% 10% 37%&lt;br /&gt;[libx264 @ 00000000024f09c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 20% 19%  5%  5%  5%  5%  5%  4%&lt;br /&gt;[libx264 @ 00000000024f09c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 35% 16% 12%  5%  8%  8%  6%  7%  3%&lt;br /&gt;[libx264 @ 00000000024f09c0] i8c dc,h,v,p: 56% 20% 22%  2%&lt;br /&gt;[libx264 @ 00000000024f09c0] Weighted P-Frames: Y:4.2% UV:3.7%&lt;br /&gt;[libx264 @ 00000000024f09c0] ref P L0: 71.6%  8.2% 14.6%  5.6%  0.0%&lt;br /&gt;[libx264 @ 00000000024f09c0] ref B L0: 90.4%  8.2%  1.3%&lt;br /&gt;[libx264 @ 00000000024f09c0] ref B L1: 98.3%  1.7%&lt;br /&gt;[libx264 @ 00000000024f09c0] kb/s:1624.09&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffprobe -hide_banner temp3.mp4&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp3.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:40.04, start: 0.000000, bitrate: 1627 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1624 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.95 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffprobe -hide_banner temp2.mp4&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp2.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:23.10, start: 0.000000, bitrate: 1394 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1391 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;notepad temp1.txt&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;type temp1.txt&lt;br /&gt;file 'temp2.mp4'&lt;br /&gt;duration 23&lt;br /&gt;file 'temp3.mp4'&lt;br /&gt;duration 40&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -f concat -safe 0 -i temp1.txt temp4.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000000594b40] Auto-inserting h264_mp4toannexb bitstream filter&lt;br /&gt;Input #0, concat, from 'temp1.txt':&lt;br /&gt;  Duration: 00:01:03.00, start: 0.000000, bitrate: 0 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1391 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (h264 (native) -&gt; h264 (libx264))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;[libx264 @ 00000000005a6f80] using SAR=1/1&lt;br /&gt;[libx264 @ 00000000005a6f80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64&lt;br /&gt;[libx264 @ 00000000005a6f80] profile High, level 3.1, 4:2:0, 8-bit&lt;br /&gt;[libx264 @ 00000000005a6f80] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00&lt;br /&gt;Output #0, mp4, to 'temp4.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=-1--1, 23.98 fps, 19184 tbn, 23.98 tbc&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;      encoder         : Lavc58.93.100 libx264&lt;br /&gt;    Side data:&lt;br /&gt;      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A&lt;br /&gt;[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000000594b40] Auto-inserting h264_mp4toannexb bitstream filterx&lt;br /&gt;frame= 1513 fps= 18 q=-1.0 Lsize=   11497kB time=00:01:02.96 bitrate=1495.7kbits/s dup=0 drop=1 speed=0.728x&lt;br /&gt;video:11479kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.153002%&lt;br /&gt;[libx264 @ 00000000005a6f80] frame I:42    Avg QP:19.21  size: 22614&lt;br /&gt;[libx264 @ 00000000005a6f80] frame P:620   Avg QP:22.10  size: 10957&lt;br /&gt;[libx264 @ 00000000005a6f80] frame B:851   Avg QP:23.46  size:  4713&lt;br /&gt;[libx264 @ 00000000005a6f80] consecutive B-frames: 11.2% 37.1% 12.5% 39.1%&lt;br /&gt;[libx264 @ 00000000005a6f80] mb I  I16..4: 15.5% 77.6%  6.9%&lt;br /&gt;[libx264 @ 00000000005a6f80] mb P  I16..4:  9.1% 36.9%  1.6%  P16..4: 25.4%  6.0%  2.0%  0.0%  0.0%    skip:19.0%&lt;br /&gt;[libx264 @ 00000000005a6f80] mb B  I16..4:  1.7%  5.2%  0.3%  B16..8: 33.8%  5.0%  0.6%  direct: 1.8%  skip:51.7%  L0:47.0% L1:49.6% BI: 3.4%&lt;br /&gt;[libx264 @ 00000000005a6f80] 8x8 transform intra:76.8% inter:88.8%&lt;br /&gt;[libx264 @ 00000000005a6f80] coded y,uvDC,uvAC intra: 37.9% 53.6% 4.0% inter: 9.1% 14.6% 0.0%&lt;br /&gt;[libx264 @ 00000000005a6f80] i16 v,h,dc,p: 31% 24% 10% 36%&lt;br /&gt;[libx264 @ 00000000005a6f80] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 21% 18%  5%  5%  5%  5%  5%  4%&lt;br /&gt;[libx264 @ 00000000005a6f80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 21% 12%  5%  8%  7%  7%  6%  4%&lt;br /&gt;[libx264 @ 00000000005a6f80] i8c dc,h,v,p: 56% 20% 21%  3%&lt;br /&gt;[libx264 @ 00000000005a6f80] Weighted P-Frames: Y:4.7% UV:3.7%&lt;br /&gt;[libx264 @ 00000000005a6f80] ref P L0: 71.9% 10.8% 12.6%  4.6%  0.1%&lt;br /&gt;[libx264 @ 00000000005a6f80] ref B L0: 90.7%  8.0%  1.3%&lt;br /&gt;[libx264 @ 00000000005a6f80] ref B L1: 98.7%  1.3%&lt;br /&gt;[libx264 @ 00000000005a6f80] kb/s:1490.35&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -i "no81nq.mp4" -vn "temp6.aac" -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'no81nq.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : mp42&lt;br /&gt;    minor_version   : 0&lt;br /&gt;    compatible_brands: isommp42&lt;br /&gt;    creation_time   : 2021-02-14T23:16:56.000000Z&lt;br /&gt;  Duration: 00:01:34.04, start: 0.000000, bitrate: 613 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 482 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2021-02-14T23:16:56.000000Z&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2021-02-14T23:16:56.000000Z&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:1 -&gt; #0:0 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, adts, to 'temp6.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : mp42&lt;br /&gt;    minor_version   : 0&lt;br /&gt;    compatible_brands: isommp42&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2021-02-14T23:16:56.000000Z&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;size=    1354kB time=00:01:34.04 bitrate= 117.9kbits/s speed=41.9x&lt;br /&gt;video:0kB audio:1326kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.088463%&lt;br /&gt;[aac @ 0000000000592a00] Qavg: 7048.974&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -i "no81nq.mp4" -to 00:00:23 -vn -c:a copy "temp6.aac" -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'no81nq.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : mp42&lt;br /&gt;    minor_version   : 0&lt;br /&gt;    compatible_brands: isommp42&lt;br /&gt;    creation_time   : 2021-02-14T23:16:56.000000Z&lt;br /&gt;  Duration: 00:01:34.04, start: 0.000000, bitrate: 613 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 482 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2021-02-14T23:16:56.000000Z&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2021-02-14T23:16:56.000000Z&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Output #0, adts, to 'temp6.aac':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : mp42&lt;br /&gt;    minor_version   : 0&lt;br /&gt;    compatible_brands: isommp42&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2021-02-14T23:16:56.000000Z&lt;br /&gt;      handler_name    : ISO Media file produced by Google Inc. Created on: 02/14/2021.&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:1 -&gt; #0:0 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;size=     366kB time=00:00:22.98 bitrate= 130.6kbits/s speed=2.3e+03x&lt;br /&gt;video:0kB audio:360kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.883504%&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -i "temp4.mp4" -i "temp5.aac" -c copy temp5.mp4 -y&lt;br /&gt;ffmpeg version git-2020-06-20-29ea4e1 Copyright (c) 2000-2020 the FFmpeg developers&lt;br /&gt;  built with gcc 9.3.1 (GCC) 20200523&lt;br /&gt;  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf&lt;br /&gt;  libavutil      56. 55.100 / 56. 55.100&lt;br /&gt;  libavcodec     58. 93.100 / 58. 93.100&lt;br /&gt;  libavformat    58. 47.100 / 58. 47.100&lt;br /&gt;  libavdevice    58. 11.100 / 58. 11.100&lt;br /&gt;  libavfilter     7. 86.100 /  7. 86.100&lt;br /&gt;  libswscale      5.  8.100 /  5.  8.100&lt;br /&gt;  libswresample   3.  8.100 /  3.  8.100&lt;br /&gt;  libpostproc    55.  8.100 / 55.  8.100&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp4.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:01:03.10, start: 0.000000, bitrate: 1492 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1490 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;[aac @ 00000000005a1c00] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #1, aac, from 'temp5.aac':&lt;br /&gt;  Duration: 00:01:45.68, bitrate: 183 kb/s&lt;br /&gt;    Stream #1:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 183 kb/s&lt;br /&gt;Output #0, mp4, to 'temp5.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=2-31, 1490 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 19184 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 183 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (copy)&lt;br /&gt;  Stream #1:0 -&gt; #0:1 (copy)&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;frame= 1513 fps=0.0 q=-1.0 Lsize=   13866kB time=00:02:30.97 bitrate= 752.4kbits/s speed=1.51e+03x&lt;br /&gt;video:11479kB audio:2369kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.129396%&lt;br /&gt;&lt;br /&gt;G:\1\0&gt;ffmpeg -hide_banner -i "temp4.mp4" -i "temp5.aac" -c:v copy -shortest temp5.mp4 -y&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'temp4.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:01:03.10, start: 0.000000, bitrate: 1492 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1490 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;[aac @ 0000000002864040] Estimating duration from bitrate, this may be inaccurate&lt;br /&gt;Input #1, aac, from 'temp5.aac':&lt;br /&gt;  Duration: 00:01:45.68, bitrate: 183 kb/s&lt;br /&gt;    Stream #1:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 183 kb/s&lt;br /&gt;Stream mapping:&lt;br /&gt;  Stream #0:0 -&gt; #0:0 (copy)&lt;br /&gt;  Stream #1:0 -&gt; #0:1 (aac (native) -&gt; aac (native))&lt;br /&gt;Press [q] to stop, [?] for help&lt;br /&gt;Output #0, mp4, to 'temp5.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], q=2-31, 1490 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 19184 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s&lt;br /&gt;    Metadata:&lt;br /&gt;      encoder         : Lavc58.93.100 aac&lt;br /&gt;frame= 1513 fps=680 q=-1.0 Lsize=   12504kB time=00:01:02.99 bitrate=1626.1kbits/s speed=28.3x&lt;br /&gt;video:11479kB audio:978kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.381858%&lt;br /&gt;[aac @ 00000000005eb080] Qavg: 949.143&lt;/pre&gt;&lt;br /&gt;Hashes of these MP4 files via 7z and findstr:&lt;br /&gt;&lt;pre&gt;G:\&gt;7z h -scrc* "G:\1\0\temp5.mp4" | findstr /c:" for "&lt;br /&gt;CRC32  for data:              84FD5F8B&lt;br /&gt;CRC64  for data:              1F847BB59924A3D4&lt;br /&gt;SHA256 for data:              306915AEC0CC82DA133A48EC423C6B70B3921ABED647355743562619D8FEFF98&lt;br /&gt;SHA1   for data:              75C932941717F9463D1C4A69FED2EEC29C07364F&lt;br /&gt;BLAKE2sp for data:              E62422E15CBC6637909F5704F69A197166D2A04052852AFC713D3C08C87A2693&lt;br /&gt;&lt;br /&gt;G:\&gt;7z h -scrc* "G:\1\0\zbrail.mp4" | findstr /c:" for "&lt;br /&gt;CRC32  for data:              3A3656CC&lt;br /&gt;CRC64  for data:              EC98D4B81D9726BF&lt;br /&gt;SHA256 for data:              35DBC1630C061EA9D7AF38BA3DD5D129521B8D2001DE6872E3500DE0B6F50154&lt;br /&gt;SHA1   for data:              56768E9CAAE3698C0CBC00517E300D97D2F04320&lt;br /&gt;BLAKE2sp for data:              FB805A44757FC3CDF9041573822CC4409B7DF6B335BEDA8E7D297C691497CB56&lt;br /&gt;&lt;br /&gt;G:\&gt;7z h -scrc* "G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4" | findstr /c:" for "&lt;br /&gt;CRC32  for data:              D915B817&lt;br /&gt;CRC64  for data:              A313DFB10E1ABEB9&lt;br /&gt;SHA256 for data:              50D8D1AE09B69DC5514DC515B9764392A9A4F067460B8631702E281EE653EE4B&lt;br /&gt;SHA1   for data:              A683168B664214E10096AC50193FB7D41AD070DF&lt;br /&gt;BLAKE2sp for data:              A825E671705F0274A259112EA0E9C337D7DD225D62F4D3D10E0D96145015926A&lt;/pre&gt;&lt;br /&gt;Properties of these MP4 video files via exiftool, ffprobe, wmic, and dir:&lt;br /&gt;&lt;pre&gt;G:\&gt;exiftool "G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4"&lt;br /&gt;ExifTool Version Number         : 12.01&lt;br /&gt;File Name                       : Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4&lt;br /&gt;Directory                       : G:/Movies/Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous&lt;br /&gt;File Size                       : 2.0 GB&lt;br /&gt;File Modification Date/Time     : 2014:08:15 14:06:40-06:00&lt;br /&gt;File Access Date/Time           : 2021:12:07 10:40:56-07:00&lt;br /&gt;File Creation Date/Time         : 2014:11:10 13:58:31-07:00&lt;br /&gt;File Permissions                : rw-rw-rw-&lt;br /&gt;File Type                       : MP4&lt;br /&gt;File Type Extension             : mp4&lt;br /&gt;MIME Type                       : video/mp4&lt;br /&gt;Major Brand                     : MP4  Base Media v1 [IS0 14496-12:2003]&lt;br /&gt;Minor Version                   : 0.0.1&lt;br /&gt;Compatible Brands               : isom, avc1&lt;br /&gt;Movie Header Version            : 0&lt;br /&gt;Create Date                     : 2013:07:20 17:00:38&lt;br /&gt;Modify Date                     : 2013:07:20 17:00:38&lt;br /&gt;Time Scale                      : 600&lt;br /&gt;Duration                        : 2:23:26&lt;br /&gt;Preferred Rate                  : 1&lt;br /&gt;Preferred Volume                : 100.00%&lt;br /&gt;Preview Time                    : 0 s&lt;br /&gt;Preview Duration                : 0 s&lt;br /&gt;Poster Time                     : 0 s&lt;br /&gt;Selection Time                  : 0 s&lt;br /&gt;Selection Duration              : 0 s&lt;br /&gt;Current Time                    : 0 s&lt;br /&gt;Next Track ID                   : 3&lt;br /&gt;Track Header Version            : 0&lt;br /&gt;Track Create Date               : 2013:07:20 17:00:38&lt;br /&gt;Track Modify Date               : 2013:07:20 17:07:54&lt;br /&gt;Track ID                        : 1&lt;br /&gt;Track Duration                  : 2:23:26&lt;br /&gt;Track Layer                     : 0&lt;br /&gt;Track Volume                    : 0.00%&lt;br /&gt;Image Width                     : 1920&lt;br /&gt;Image Height                    : 1080&lt;br /&gt;Graphics Mode                   : srcCopy&lt;br /&gt;Op Color                        : 0 0 0&lt;br /&gt;Compressor ID                   : avc1&lt;br /&gt;Source Image Width              : 1920&lt;br /&gt;Source Image Height             : 1080&lt;br /&gt;X Resolution                    : 72&lt;br /&gt;Y Resolution                    : 72&lt;br /&gt;Bit Depth                       : 24&lt;br /&gt;Buffer Size                     : 150965&lt;br /&gt;Max Bitrate                     : 6041680&lt;br /&gt;Average Bitrate                 : 1616656&lt;br /&gt;Video Frame Rate                : 23.976&lt;br /&gt;Matrix Structure                : 1 0 0 0 1 0 0 0 1&lt;br /&gt;Media Header Version            : 0&lt;br /&gt;Media Create Date               : 2013:07:20 09:18:21&lt;br /&gt;Media Modify Date               : 2013:07:20 17:07:54&lt;br /&gt;Media Time Scale                : 48000&lt;br /&gt;Media Duration                  : 2:23:26&lt;br /&gt;Media Language Code             : eng&lt;br /&gt;Handler Type                    : Audio Track&lt;br /&gt;Handler Description             : Sound Media Handler&lt;br /&gt;Balance                         : 0&lt;br /&gt;Audio Format                    : mp4a&lt;br /&gt;Audio Channels                  : 2&lt;br /&gt;Audio Bits Per Sample           : 16&lt;br /&gt;Audio Sample Rate               : 48000&lt;br /&gt;Media Data Size                 : 2149036219&lt;br /&gt;Media Data Offset               : 3776437&lt;br /&gt;Image Size                      : 1920x1080&lt;br /&gt;Megapixels                      : 2.1&lt;br /&gt;Avg Bitrate                     : 2 Mbps&lt;br /&gt;Rotation                        : 0&lt;br /&gt;&lt;br /&gt;G:\&gt;ffprobe -hide_banner "G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4"&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 1&lt;br /&gt;    compatible_brands: isomavc1&lt;br /&gt;    creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;  Duration: 02:23:26.12, start: 0.000000, bitrate: 2001 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1616 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T17:00:38.000000Z&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 381 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      creation_time   : 2013-07-20T09:18:21.000000Z&lt;br /&gt;      handler_name    : Sound Media Handler&lt;br /&gt;&lt;br /&gt;G:\&gt;wmic datafile where name="G:\\Movies\\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous\\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4" list/format:list&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;AccessMask=2032127&lt;br /&gt;Archive=TRUE&lt;br /&gt;Caption=g:\movies\brazil.1985.1080p.criterion.bluray.x264.anoxmous\brazil.1985.1080p.criterion.bluray.x264.anoxmous_.mp4&lt;br /&gt;Compressed=FALSE&lt;br /&gt;CompressionMethod=&lt;br /&gt;CreationClassName=CIM_LogicalFile&lt;br /&gt;CreationDate=20141110135831.861433-420&lt;br /&gt;CSCreationClassName=Win32_ComputerSystem&lt;br /&gt;CSName=LENOVO&lt;br /&gt;Description=g:\movies\brazil.1985.1080p.criterion.bluray.x264.anoxmous\brazil.1985.1080p.criterion.bluray.x264.anoxmous_.mp4&lt;br /&gt;Drive=g:&lt;br /&gt;EightDotThreeFileName=g:\movies\brazil.1985.1080p.criterion.bluray.x264.anoxmous\brazil~1.mp4&lt;br /&gt;Encrypted=FALSE&lt;br /&gt;EncryptionMethod=&lt;br /&gt;Extension=mp4&lt;br /&gt;FileName=Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_&lt;br /&gt;FileSize=2152812715&lt;br /&gt;FileType=MP4 Video&lt;br /&gt;FSCreationClassName=Win32_FileSystem&lt;br /&gt;FSName=NTFS&lt;br /&gt;Hidden=FALSE&lt;br /&gt;InstallDate=20141110135831.861433-420&lt;br /&gt;InUseCount=&lt;br /&gt;LastAccessed=20211207104056.718018-420&lt;br /&gt;LastModified=20140815140640.000000-360&lt;br /&gt;Manufacturer=&lt;br /&gt;Name=g:\movies\brazil.1985.1080p.criterion.bluray.x264.anoxmous\brazil.1985.1080p.criterion.bluray.x264.anoxmous_.mp4&lt;br /&gt;Path=\movies\brazil.1985.1080p.criterion.bluray.x264.anoxmous\&lt;br /&gt;Readable=TRUE&lt;br /&gt;Status=OK&lt;br /&gt;System=FALSE&lt;br /&gt;Version=&lt;br /&gt;Writeable=TRUE&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;G:\&gt;dir /x/r "G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous"&lt;br /&gt; Volume in drive G is My Passport&lt;br /&gt; Volume Serial Number is 1093-F3E8&lt;br /&gt;&lt;br /&gt; Directory of G:\Movies\Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous&lt;br /&gt;&lt;br /&gt;01/10/2021  09:04 PM    &lt;span&gt;&lt;&lt;/span&gt;DIR&gt;                       .&lt;br /&gt;01/10/2021  09:04 PM    &lt;span&gt;&lt;&lt;/span&gt;DIR&gt;                       ..&lt;br /&gt;[...]&lt;br /&gt;08/15/2014  02:06 PM     2,152,812,715 BRAZIL~1.MP4 Brazil.1985.1080p.Criterion.BluRay.x264.anoXmous_.mp4&lt;br /&gt;[...]&lt;br /&gt;               2 Dir(s)  78,703,988,736 bytes free&lt;br /&gt;&lt;br /&gt;G:\&gt;dir /x/r G:\1\0\&lt;br /&gt; Volume in drive G is My Passport&lt;br /&gt; Volume Serial Number is 1093-F3E8&lt;br /&gt;&lt;br /&gt; Directory of G:\1\0&lt;br /&gt;&lt;br /&gt;03/23/2022  11:50 AM    &lt;span&gt;&lt;&lt;/span&gt;DIR&gt;                       .&lt;br /&gt;03/23/2022  11:50 AM    &lt;span&gt;&lt;&lt;/span&gt;DIR&gt;                       ..&lt;br /&gt;[...]&lt;br /&gt;03/22/2022  06:45 PM         2,422,200              temp1.aac&lt;br /&gt;03/23/2022  10:51 AM         8,476,684              temp1.mp4&lt;br /&gt;03/08/2022  07:17 AM           186,503              temp1.png&lt;br /&gt;03/22/2022  07:08 PM            67,884              temp2.aac&lt;br /&gt;03/22/2022  09:45 PM         4,026,641              temp2.mp4&lt;br /&gt;03/22/2022  07:18 PM            72,956              temp3.aac&lt;br /&gt;03/23/2022  11:04 AM         8,143,219              temp3.mp4&lt;br /&gt;03/22/2022  06:52 PM         2,420,714              temp4.aac&lt;br /&gt;03/23/2022  11:08 AM        11,772,737              temp4.mp4&lt;br /&gt;03/22/2022  07:33 PM         2,425,757              temp5.aac&lt;br /&gt;03/23/2022  11:19 AM        12,804,491              temp5.mp4&lt;br /&gt;03/23/2022  11:15 AM           375,240              temp6.aac&lt;br /&gt;[...]&lt;br /&gt;03/22/2022  08:02 PM        19,439,109              zbrail.mp4&lt;br /&gt;[...]&lt;br /&gt;             764 File(s) 48,687,423,140 bytes&lt;br /&gt;              26 Dir(s)  78,703,980,544 bytes free&lt;br /&gt;&lt;br /&gt;G:\&gt;exiftool "G:\1\0\temp5.mp4"&lt;br /&gt;ExifTool Version Number         : 12.01&lt;br /&gt;File Name                       : temp5.mp4&lt;br /&gt;Directory                       : G:/1/0&lt;br /&gt;File Size                       : 12 MB&lt;br /&gt;File Modification Date/Time     : 2022:03:23 11:19:52-06:00&lt;br /&gt;File Access Date/Time           : 2021:12:09 07:51:14-07:00&lt;br /&gt;File Creation Date/Time         : 2021:01:06 21:45:32-07:00&lt;br /&gt;File Permissions                : rw-rw-rw-&lt;br /&gt;File Type                       : MP4&lt;br /&gt;File Type Extension             : mp4&lt;br /&gt;MIME Type                       : video/mp4&lt;br /&gt;Major Brand                     : MP4  Base Media v1 [IS0 14496-12:2003]&lt;br /&gt;Minor Version                   : 0.2.0&lt;br /&gt;Compatible Brands               : isom, iso2, avc1, mp41&lt;br /&gt;Media Data Size                 : 12755782&lt;br /&gt;Media Data Offset               : 48&lt;br /&gt;Movie Header Version            : 0&lt;br /&gt;Create Date                     : 0000:00:00 00:00:00&lt;br /&gt;Modify Date                     : 0000:00:00 00:00:00&lt;br /&gt;Time Scale                      : 1000&lt;br /&gt;Duration                        : 0:01:03&lt;br /&gt;Preferred Rate                  : 1&lt;br /&gt;Preferred Volume                : 100.00%&lt;br /&gt;Preview Time                    : 0 s&lt;br /&gt;Preview Duration                : 0 s&lt;br /&gt;Poster Time                     : 0 s&lt;br /&gt;Selection Time                  : 0 s&lt;br /&gt;Selection Duration              : 0 s&lt;br /&gt;Current Time                    : 0 s&lt;br /&gt;Next Track ID                   : 3&lt;br /&gt;Track Header Version            : 0&lt;br /&gt;Track Create Date               : 0000:00:00 00:00:00&lt;br /&gt;Track Modify Date               : 0000:00:00 00:00:00&lt;br /&gt;Track ID                        : 1&lt;br /&gt;Track Duration                  : 0:01:03&lt;br /&gt;Track Layer                     : 0&lt;br /&gt;Track Volume                    : 0.00%&lt;br /&gt;Image Width                     : 1138&lt;br /&gt;Image Height                    : 640&lt;br /&gt;Graphics Mode                   : srcCopy&lt;br /&gt;Op Color                        : 0 0 0&lt;br /&gt;Compressor ID                   : avc1&lt;br /&gt;Source Image Width              : 1138&lt;br /&gt;Source Image Height             : 640&lt;br /&gt;X Resolution                    : 72&lt;br /&gt;Y Resolution                    : 72&lt;br /&gt;Bit Depth                       : 24&lt;br /&gt;Pixel Aspect Ratio              : 1:1&lt;br /&gt;Video Frame Rate                : 23.98&lt;br /&gt;Matrix Structure                : 1 0 0 0 1 0 0 0 1&lt;br /&gt;Media Header Version            : 0&lt;br /&gt;Media Create Date               : 0000:00:00 00:00:00&lt;br /&gt;Media Modify Date               : 0000:00:00 00:00:00&lt;br /&gt;Media Time Scale                : 44100&lt;br /&gt;Media Duration                  : 0:01:03&lt;br /&gt;Media Language Code             : und&lt;br /&gt;Handler Description             : SoundHandler&lt;br /&gt;Balance                         : 0&lt;br /&gt;Audio Format                    : mp4a&lt;br /&gt;Audio Channels                  : 2&lt;br /&gt;Audio Bits Per Sample           : 16&lt;br /&gt;Audio Sample Rate               : 44100&lt;br /&gt;Handler Type                    : Metadata&lt;br /&gt;Handler Vendor ID               : Apple&lt;br /&gt;Encoder                         : Lavf58.47.100&lt;br /&gt;Image Size                      : 1138x640&lt;br /&gt;Megapixels                      : 0.728&lt;br /&gt;Avg Bitrate                     : 1.62 Mbps&lt;br /&gt;Rotation                        : 0&lt;br /&gt;&lt;br /&gt;G:\&gt;ffprobe -hide_banner "G:\1\0\temp5.mp4"&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\temp5.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:01:03.10, start: 0.000000, bitrate: 1623 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1138x640 [SAR 1:1 DAR 569:320], 1490 kb/s, 23.98 fps, 23.98 tbr, 19184 tbn, 47.96 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : VideoHandler&lt;br /&gt;    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : SoundHandler&lt;br /&gt;&lt;br /&gt;G:\&gt;wmic datafile where name="G:\\1\\0\\temp5.mp4" list/format:list&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;AccessMask=2032127&lt;br /&gt;Archive=TRUE&lt;br /&gt;Caption=g:\1\0\temp5.mp4&lt;br /&gt;Compressed=FALSE&lt;br /&gt;CompressionMethod=&lt;br /&gt;CreationClassName=CIM_LogicalFile&lt;br /&gt;CreationDate=20210106214532.199928-420&lt;br /&gt;CSCreationClassName=Win32_ComputerSystem&lt;br /&gt;CSName=LENOVO&lt;br /&gt;Description=g:\1\0\temp5.mp4&lt;br /&gt;Drive=g:&lt;br /&gt;EightDotThreeFileName=g:\1\0\temp5.mp4&lt;br /&gt;Encrypted=FALSE&lt;br /&gt;EncryptionMethod=&lt;br /&gt;Extension=mp4&lt;br /&gt;FileName=temp5&lt;br /&gt;FileSize=12804491&lt;br /&gt;FileType=MP4 Video&lt;br /&gt;FSCreationClassName=Win32_FileSystem&lt;br /&gt;FSName=NTFS&lt;br /&gt;Hidden=FALSE&lt;br /&gt;InstallDate=20210106214532.199928-420&lt;br /&gt;InUseCount=&lt;br /&gt;LastAccessed=20211209075114.104875-420&lt;br /&gt;LastModified=20220323111952.338512-360&lt;br /&gt;Manufacturer=&lt;br /&gt;Name=g:\1\0\temp5.mp4&lt;br /&gt;Path=\1\0\&lt;br /&gt;Readable=TRUE&lt;br /&gt;Status=OK&lt;br /&gt;System=FALSE&lt;br /&gt;Version=&lt;br /&gt;Writeable=TRUE&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;G:\&gt;wmic datafile where name="G:\\1\\0\\zbrail.mp4" list/format:list&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;AccessMask=2032127&lt;br /&gt;Archive=TRUE&lt;br /&gt;Caption=g:\1\0\zbrail.mp4&lt;br /&gt;Compressed=FALSE&lt;br /&gt;CompressionMethod=&lt;br /&gt;CreationClassName=CIM_LogicalFile&lt;br /&gt;CreationDate=20210106215037.691898-420&lt;br /&gt;CSCreationClassName=Win32_ComputerSystem&lt;br /&gt;CSName=LENOVO&lt;br /&gt;Description=g:\1\0\zbrail.mp4&lt;br /&gt;Drive=g:&lt;br /&gt;EightDotThreeFileName=g:\1\0\zbrail.mp4&lt;br /&gt;Encrypted=FALSE&lt;br /&gt;EncryptionMethod=&lt;br /&gt;Extension=mp4&lt;br /&gt;FileName=zbrail&lt;br /&gt;FileSize=19439109&lt;br /&gt;FileType=MP4 Video&lt;br /&gt;FSCreationClassName=Win32_FileSystem&lt;br /&gt;FSName=NTFS&lt;br /&gt;Hidden=FALSE&lt;br /&gt;InstallDate=20210106215037.691898-420&lt;br /&gt;InUseCount=&lt;br /&gt;LastAccessed=20220116121634.129185-420&lt;br /&gt;LastModified=20220322200232.899847-360&lt;br /&gt;Manufacturer=&lt;br /&gt;Name=g:\1\0\zbrail.mp4&lt;br /&gt;Path=\1\0\&lt;br /&gt;Readable=TRUE&lt;br /&gt;Status=OK&lt;br /&gt;System=FALSE&lt;br /&gt;Version=&lt;br /&gt;Writeable=TRUE&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;G:\&gt;exiftool "G:\1\0\zbrail.mp4"&lt;br /&gt;ExifTool Version Number         : 12.01&lt;br /&gt;File Name                       : zbrail.mp4&lt;br /&gt;Directory                       : G:/1/0&lt;br /&gt;File Size                       : 19 MB&lt;br /&gt;File Modification Date/Time     : 2022:03:22 20:02:32-06:00&lt;br /&gt;File Access Date/Time           : 2022:01:16 12:16:34-07:00&lt;br /&gt;File Creation Date/Time         : 2021:01:06 21:50:37-07:00&lt;br /&gt;File Permissions                : rw-rw-rw-&lt;br /&gt;File Type                       : MP4&lt;br /&gt;File Type Extension             : mp4&lt;br /&gt;MIME Type                       : video/mp4&lt;br /&gt;Major Brand                     : MP4  Base Media v1 [IS0 14496-12:2003]&lt;br /&gt;Minor Version                   : 0.2.0&lt;br /&gt;Compatible Brands               : isom, iso2, avc1, mp41&lt;br /&gt;Media Data Size                 : 19414541&lt;br /&gt;Media Data Offset               : 48&lt;br /&gt;Movie Header Version            : 0&lt;br /&gt;Create Date                     : 0000:00:00 00:00:00&lt;br /&gt;Modify Date                     : 0000:00:00 00:00:00&lt;br /&gt;Time Scale                      : 1000&lt;br /&gt;Duration                        : 0:00:40&lt;br /&gt;Preferred Rate                  : 1&lt;br /&gt;Preferred Volume                : 100.00%&lt;br /&gt;Preview Time                    : 0 s&lt;br /&gt;Preview Duration                : 0 s&lt;br /&gt;Poster Time                     : 0 s&lt;br /&gt;Selection Time                  : 0 s&lt;br /&gt;Selection Duration              : 0 s&lt;br /&gt;Current Time                    : 0 s&lt;br /&gt;Next Track ID                   : 3&lt;br /&gt;Track Header Version            : 0&lt;br /&gt;Track Create Date               : 0000:00:00 00:00:00&lt;br /&gt;Track Modify Date               : 0000:00:00 00:00:00&lt;br /&gt;Track ID                        : 1&lt;br /&gt;Track Duration                  : 0:00:40&lt;br /&gt;Track Layer                     : 0&lt;br /&gt;Track Volume                    : 0.00%&lt;br /&gt;Image Width                     : 1920&lt;br /&gt;Image Height                    : 1080&lt;br /&gt;Graphics Mode                   : srcCopy&lt;br /&gt;Op Color                        : 0 0 0&lt;br /&gt;Compressor ID                   : avc1&lt;br /&gt;Source Image Width              : 1920&lt;br /&gt;Source Image Height             : 1080&lt;br /&gt;X Resolution                    : 72&lt;br /&gt;Y Resolution                    : 72&lt;br /&gt;Bit Depth                       : 24&lt;br /&gt;Pixel Aspect Ratio              : 1:1&lt;br /&gt;Video Frame Rate                : 23.976&lt;br /&gt;Matrix Structure                : 1 0 0 0 1 0 0 0 1&lt;br /&gt;Media Header Version            : 0&lt;br /&gt;Media Create Date               : 0000:00:00 00:00:00&lt;br /&gt;Media Modify Date               : 0000:00:00 00:00:00&lt;br /&gt;Media Time Scale                : 48000&lt;br /&gt;Media Duration                  : 0:00:40&lt;br /&gt;Media Language Code             : eng&lt;br /&gt;Handler Description             : Sound Media Handler&lt;br /&gt;Balance                         : 0&lt;br /&gt;Audio Format                    : mp4a&lt;br /&gt;Audio Channels                  : 2&lt;br /&gt;Audio Bits Per Sample           : 16&lt;br /&gt;Audio Sample Rate               : 48000&lt;br /&gt;Handler Type                    : Metadata&lt;br /&gt;Handler Vendor ID               : Apple&lt;br /&gt;Encoder                         : Lavf58.47.100&lt;br /&gt;Image Size                      : 1920x1080&lt;br /&gt;Megapixels                      : 2.1&lt;br /&gt;Avg Bitrate                     : 3.88 Mbps&lt;br /&gt;Rotation                        : 0&lt;br /&gt;&lt;br /&gt;G:\&gt;ffprobe -hide_banner "G:\1\0\zbrail.mp4"&lt;br /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'G:\1\0\zbrail.mp4':&lt;br /&gt;  Metadata:&lt;br /&gt;    major_brand     : isom&lt;br /&gt;    minor_version   : 512&lt;br /&gt;    compatible_brands: isomiso2avc1mp41&lt;br /&gt;    encoder         : Lavf58.47.100&lt;br /&gt;  Duration: 00:00:40.04, start: 0.000000, bitrate: 3883 kb/s&lt;br /&gt;    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 3750 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : 1985.1080p.Criterion.BluRay.x264.anoXmous_track1_eng-muxed.264#trackID=1:fps=23.976@GPAC0.5.1-DEV-rev4283&lt;br /&gt;    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)&lt;br /&gt;    Metadata:&lt;br /&gt;      handler_name    : Sound Media Handler&lt;/pre&gt;&lt;br /&gt;See also:&lt;br /&gt;* https://archive.org/search.php?query=%22ladies%20and%20gentlemen%20we%20got%22&lt;br /&gt;** links to https://archive.org/details/20200527-163225-1280x-720&lt;br /&gt;** links to https://archive.org/details/findingcapturing0000paym&lt;br /&gt;* https://en.wikipedia.org/wiki/Brazil_(1985_film)&lt;br /&gt;** has the text "British political satire film"&lt;br /&gt;&lt;br /&gt;identifier basically from stdout of "lubuntu@lubuntu:[/home/lubuntu/openssl-3.0.0]$ find . -type d", 127</description>
  <language>eng</language>
  <scanner>Internet Archive HTML5 Uploader 1.6.4</scanner>
  <subject>ladies and gentlemen we got him; spoken English; English; British fantasy drama film; British film; British neo-noir film; Brazil; edit</subject>
  <subject>British political satire film; British satirical film; 1985 film; pedo; pedophile; pedophilia; Tuttle; Buttle; British; meme; night; oc</subject>
  <subject>police; human; photo; original content; oc (original content / original mashup); mashup; movie; film; paedophilia; nighttime; child; kid</subject>
  <subject>pædophile; pædophilia; music; Brazil version; we got him; Ladies and gentlemen we got em; earrape; ear rape; entertainment; entertaining</subject>
  <subject>entertain; amusement; cop; cops; amusing; amuse; satire; FBI! OPEN UP!; FBI open up; FBI; UK; British neo noir film; crime; criminal; lul</subject>
  <subject>lulzy; lulz; 1985; 1980s; the 1980s; ladies and gentlemen we got him (meme); Paul Bremer; American diplomat; Paul Bremer (diplomat); Paul</subject>
  <subject>American; diplomat; Bremer; United Kingdom; edited; edited video; Brazil (1985 film); Brazil (film); Brazil (1985); Brazil (movie); male</subject>
  <subject>female; children; kids; day; daytime; funny; paedophile; outdoors; indoors; memes</subject>
  <title>Ladies and gentlemen, we got him! - Brazil version</title>
  <uploader>leedusmcclein@gmail.com</uploader>
  <publicdate>2022-03-23 17:34:13</publicdate>
  <addeddate>2022-03-23 17:34:13</addeddate>
  <curation>[curator]validator@archive.org[/curator][date]20220323173427[/date][comment]checked for malware[/comment]</curation>
  <sound>sound</sound>
  <color>color</color>
  <access-restricted-item>true</access-restricted-item>
  <collection>deemphasize</collection>
</metadata>
