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• Trying to concatenate multiple videos with multiple audio streams using ffmpeg

  25 avril 2019, par Toto

  I’m trying to concatenate 3 mp4 videos, each contains 3 audio streams using ffmpeg, since I couldn’t merge them with other software because of differences in the codecs private data.

  Since the files have different codecs I’m trying to use the concat video filter but I can’t seem to get it to work. The output turns out to be an unplayable file. I’m trying to specify the input files, and every media stream, then telling the software to concatenate it and copy it to the output file.

  ffmpeg -i A.mp4 -i B.mp4 -i C.mp4 -filter_complex  '[0:0] [0:1] [0:2] [0:3] [1:0] [1:1] [1:2] [1:3] [2:0] [2:1] [2:2] [2:3] concat=n=3:v=1:a=3 [v] [a1] [a2] [a3]'  -map '[v]' -map '[a1]' -map '[a2]'-map '[a3]' output.mp4

  The complete log :

  ffmpeg -i A.mp4 -i B.mp4 -i C.mp4 -filter_complex  '[0:0] [0:1] [0:2] [0:3] [1:0] [1:1] [1:2] [1:3] [2:0] [2:1] [2:2] [2:3] concat=n=3:v=1:a=3 [v] [a1] [a2] [a3]'  -map '[v]' -map '[a1]' -map '[a2]'-map '[a3]' output.mp4
  
  ffmpeg version 4.1.1 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 8.2.1 (GCC) 20190212
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --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-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
  
    libavutil      56. 22.100 / 56. 22.100
  
    libavcodec     58. 35.100 / 58. 35.100
  
    libavformat    58. 20.100 / 58. 20.100
  
    libavdevice    58.  5.100 / 58.  5.100
  
    libavfilter     7. 40.101 /  7. 40.101
  
    libswscale      5.  3.100 /  5.  3.100
  
    libswresample   3.  3.100 /  3.  3.100
  
    libpostproc    55.  3.100 / 55.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'A.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : HandBrake 0.10.1 2015030800
  
    Duration: 01:59:10.12, start: 0.000000, bitrate: 6868 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 6017 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 180k tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 320 kb/s (default)
  
      Metadata:
  
        handler_name    : Stereo
  
      Stream #0:2(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 320 kb/s
  
      Metadata:
  
        handler_name    : Surround
  
      Stream #0:3(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s
  
      Metadata:
  
        handler_name    : Stereo
  
  Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'B.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : HandBrake 0.10.1 2015030800
  
    Duration: 01:12:28.48, start: 0.000000, bitrate: 6846 kb/s
  
      Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 6001 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 180k tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 320 kb/s (default)
  
      Metadata:
  
        handler_name    : Stereo
  
      Stream #1:2(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 320 kb/s
  
      Metadata:
  
        handler_name    : Surround
  
      Stream #1:3(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s
  
      Metadata:
  
        handler_name    : Stereo
  
  Input #2, mov,mp4,m4a,3gp,3g2,mj2, from 'C.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : HandBrake 0.10.1 2015030800
  
    Duration: 00:58:55.53, start: 0.000000, bitrate: 6850 kb/s
  
      Stream #2:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 6005 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 180k tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #2:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 319 kb/s (default)
  
      Metadata:
  
        handler_name    : Stereo
  
      Stream #2:2(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 319 kb/s
  
      Metadata:
  
        handler_name    : Surround
  
      Stream #2:3(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s
  
      Metadata:
  
        handler_name    : Stereo
  
  Stream mapping:
  
    Stream #0:0 (h264) -> concat:in0:v0
  
    Stream #0:1 (aac) -> concat:in0:a0
  
    Stream #0:2 (aac) -> concat:in0:a1
  
    Stream #0:3 (aac) -> concat:in0:a2
  
    Stream #1:0 (h264) -> concat:in1:v0
  
    Stream #1:1 (aac) -> concat:in1:a0
  
    Stream #1:2 (aac) -> concat:in1:a1
  
    Stream #1:3 (aac) -> concat:in1:a2
  
    Stream #2:0 (h264) -> concat:in2:v0
  
    Stream #2:1 (aac) -> concat:in2:a0
  
    Stream #2:2 (aac) -> concat:in2:a1
  
    Stream #2:3 (aac) -> concat:in2:a2
  
    concat:out:v0 -> Stream #0:0 (libx264)
  
    concat:out:a0 -> Stream #0:1 (aac)
  
    concat:out:a1 -> Stream #0:2 (aac)
  
    concat:out:a2 -> Stream #0:3 (aac)
  
  Press [q] to stop, [?] for help
  
  [libx264 @ 000001930c898980] using SAR=1/1
  
  [libx264 @ 000001930c898980] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 000001930c898980] profile High, level 4.0, 4:2:0, 8-bit
  
  [libx264 @ 000001930c898980] 264 - core 157 r2935 545de2f - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=12 lookahead_threads=2 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
  
  Output #0, mp4, to 'output.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf58.20.100
  
      Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc (default)
  
      Metadata:
  
        encoder         : Lavc58.35.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
      Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s
  
      Metadata:
  
        encoder         : Lavc58.35.100 aac
  
      Stream #0:2: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 341 kb/s
  
      Metadata:
  
        encoder         : Lavc58.35.100 aac
  
      Stream #0:3: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s
  
      Metadata:
  
        encoder         : Lavc58.35.100 aac
  
  [aac @ 000001930d3a88c0] skip_data_stream_element: Input buffer exhausted before END element found
  
  Error while decoding stream #0:1: Invalid data found when processing input
  
  [aac @ 000001930c89a4c0] Number of bands (48) exceeds limit (47).ate=6048.4kbits/s dup=1 drop=0 speed=0.916x
  
  Error while decoding stream #2:1: Invalid data found when processing input
  
  frame=450571 fps= 28 q=-1.0 Lsize=11204203kB time=04:10:34.13 bitrate=6105.1kbits/s dup=1 drop=0 speed=0.939x
  
  video:10071486kB audio:1099256kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.299544%
  
  [libx264 @ 000001930c898980] frame I:4679  Avg QP:20.30  size:103274
  
  [libx264 @ 000001930c898980] frame P:125629 Avg QP:22.82  size: 41052
  
  [libx264 @ 000001930c898980] frame B:320263 Avg QP:25.08  size: 14590
  
  [libx264 @ 000001930c898980] consecutive B-frames:  2.3%  6.0%  8.8% 83.0%
  
  [libx264 @ 000001930c898980] mb I  I16..4: 16.4% 78.4%  5.2%
  
  [libx264 @ 000001930c898980] mb P  I16..4:  7.0% 17.1%  1.1%  P16..4: 43.0%  9.7%  4.9%  0.0%  0.0%    skip:17.3%
  
  [libx264 @ 000001930c898980] mb B  I16..4:  0.8%  1.7%  0.1%  B16..8: 39.4%  3.6%  0.7%  direct: 4.3%  skip:49.4%  L0:43.8% L1:50.2% BI: 6.0%
  
  [libx264 @ 000001930c898980] 8x8 transform intra:68.6% inter:84.9%
  
  [libx264 @ 000001930c898980] coded y,uvDC,uvAC intra: 40.3% 64.9% 17.2% inter: 12.9% 24.2% 0.4%
  
  [libx264 @ 000001930c898980] i16 v,h,dc,p: 40% 22% 10% 28%
  
  [libx264 @ 000001930c898980] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 15% 23%  5%  6%  7%  5%  6%  5%
  
  [libx264 @ 000001930c898980] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 16% 16%  6%  9%  9%  7%  6%  5%
  
  [libx264 @ 000001930c898980] i8c dc,h,v,p: 48% 20% 26%  6%
  
  [libx264 @ 000001930c898980] Weighted P-Frames: Y:8.6% UV:6.4%
  
  [libx264 @ 000001930c898980] ref P L0: 58.8% 12.5% 19.8%  8.4%  0.4%
  
  [libx264 @ 000001930c898980] ref B L0: 88.5%  9.1%  2.4%
  
  [libx264 @ 000001930c898980] ref B L1: 96.9%  3.1%
  
  [libx264 @ 000001930c898980] kb/s:5487.92
  
  [aac @ 000001930c899280] Qavg: 212.043
  
  [aac @ 000001930d1cfbc0] Qavg: 211.329
  
  [aac @ 000001930d1ce080] Qavg: 228.685

  This is the output when trying the concat demuxer, which also produces an unplayable file.

  ffmpeg -f concat -safe 0 -i mylist.txt -map 0 -c copy concat2.mp4
  
  ffmpeg version 4.1.1 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 8.2.1 (GCC) 20190212
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --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-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
  
    libavutil      56. 22.100 / 56. 22.100
  
    libavcodec     58. 35.100 / 58. 35.100
  
    libavformat    58. 20.100 / 58. 20.100
  
    libavdevice    58.  5.100 / 58.  5.100
  
    libavfilter     7. 40.101 /  7. 40.101
  
    libswscale      5.  3.100 /  5.  3.100
  
    libswresample   3.  3.100 /  3.  3.100
  
    libpostproc    55.  3.100 / 55.  3.100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0000025ca95f2dc0] Auto-inserting h264_mp4toannexb bitstream filter
  
  Input #0, concat, from 'mylist.txt':
  
    Duration: N/A, start: 0.000000, bitrate: 6850 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 6017 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 180k tbc
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 320 kb/s
  
      Metadata:
  
        handler_name    : Stereo
  
      Stream #0:2(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 320 kb/s
  
      Metadata:
  
        handler_name    : Surround
  
      Stream #0:3(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s
  
      Metadata:
  
        handler_name    : Stereo
  
  Output #0, mp4, to 'concat2.mp4':
  
    Metadata:
  
      encoder         : Lavf58.20.100
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 6017 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 90k tbc
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 320 kb/s
  
      Metadata:
  
        handler_name    : Stereo
  
      Stream #0:2(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 320 kb/s
  
      Metadata:
  
        handler_name    : Surround
  
      Stream #0:3(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s
  
      Metadata:
  
        handler_name    : Stereo
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #0:1 -> #0:1 (copy)
  
    Stream #0:2 -> #0:2 (copy)
  
    Stream #0:3 -> #0:3 (copy)
  
  Press [q] to stop, [?] for help
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0000025ca95f9480] Auto-inserting h264_mp4toannexb bitstream filter4x
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0000025ca95f9480] Auto-inserting h264_mp4toannexb bitstream filter5x
  
  frame=450570 fps=1251 q=-1.0 Lsize=12591157kB time=04:10:34.11 bitrate=6860.8kbits/s speed=41.7x
  
  video:11029679kB audio:1527897kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.267411%

• Mkv to Mp4 Converion using ffmpeg giving error

  17 avril 2019, par ashok patel

  I recently started to use Sony Vegas 13 which doesn’t accept MKV(mkv source file :-https://www.appsloveworld.com/2018/10/sample-mkv-video.html) file types so I decided to install FFMPEG to convert a MKV to MP4 which people say has almost no loss in quality, etc. However, when I try to convert a 900MB MKV file it returns a 0kb MP4 file.Image

  The line of code I use is "ffmpeg -i set.mkv -codec copy set.mp4"

  This is the error ? message I get
  error by ffmpeg

• Problem using -to, combining -to with framerate change

  21 avril 2019, par LLL

  I have a question regarding the use of the -to option :

  In FFmpeg version 3 (at least 3.2.12 included in Debian 9), -to was an output only option. In more recent version it seems to be accepted as an input option as well (as written here https://www.ffmpeg.org/ffmpeg.html#Main-options) but I run into limitations when using in conjunction with -r.
  What I expect, if I increase the framerate of the input, is that the output will be shorter. But it is not the case if I’m not using the whole input :

  ffmpeg -r 30 -to 10 -i my18fpsFile.avi out.mp4

  out.mp4 will be 10 seconds long, so the input has been read further than 10 seconds in.
  In other terms, even as an input option, it seems to behave like an output option.

  Tested with ffmpeg version N-48102-g7cab5471b2-static https://johnvansickle.com/ffmpeg/ on Debian Stretch.

  Thanks for your advice or confirmation that this is not normal.

  Edit : Thank you Gyan for your reply and your explanation.

  While it seems to work, some testing makes me remember why I wasn’t satisfied with this solution :
  Stating -r as an input option forces the framerate for the reading of the input and ensures one frame in the input is one frame in the output. This is what I want.

  Using yours solution with the filter on the output does cause dropped frames sometimes (which I have never had with -r).
  However, some more testing draws me to the conclusion that the dropped frames problem happens only with an mkv container ! Your solution works fine with other containers (as far as I have tested), but with mkv (and various video codecs, it doesn’t seem to make a difference), I get a lot of dropped frames.
  Using -r with mkv causes no dropped frames.

  In conclusion, I’m not sure how to generalize this solution, as avoiding mkv is annoying for me.
  But thank you, and if anyone has some more experience or ideas, please chime in.

  Adding logs :
  Note the line :
  [avi @ 0x6cf6880] parser not found for codec rawvideo, packets or times may be invalid
  I guess it is the cause of the problem ? Is there a solution if the files are raw avi with no index ?

  Although the warning is the same, I don’t get dropped frames if I use the exact same command only with f.mov instead of mkv.

  ffmpeg -v 40 -to 10 -i f.avi -vf setpts=N/30/TB -r 30 f.mkv
  
  ffmpeg version N-48102-g7cab5471b2-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
  
    configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg
  
    libavutil      56. 26.100 / 56. 26.100
  
    libavcodec     58. 46.100 / 58. 46.100
  
    libavformat    58. 26.100 / 58. 26.100
  
    libavdevice    58.  6.101 / 58.  6.101
  
    libavfilter     7. 48.100 /  7. 48.100
  
    libswscale      5.  4.100 /  5.  4.100
  
    libswresample   3.  4.100 /  3.  4.100
  
    libpostproc    55.  4.100 / 55.  4.100
  
  [avi @ 0x6cf6880] parser not found for codec rawvideo, packets or times may be invalid.
  
      Last message repeated 1 times
  
  Input #0, avi, from 'f.avi':
  
    Duration: 00:01:11.62, start: 0.000000, bitrate: 846067 kb/s
  
      Stream #0:0: Video: rawvideo, 1 reference frame, bgr24, 1632x1200, 846638 kb/s, 18 fps, 18 tbr, 18 tbn, 18 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  [graph 0 input from stream 0:0 @ 0x6d0fc00] w:1632 h:1200 pixfmt:bgr24 tb:1000/17999 fr:17999/1000 sar:0/1 sws_param:flags=2
  
  [auto_scaler_0 @ 0x6d105c0] w:iw h:ih flags:'bicubic' interl:0
  
  [format @ 0x6cfe5c0] auto-inserting filter 'auto_scaler_0' between the filter 'Parsed_setpts_0' and the filter 'format'
  
  [trim_in_0_0 @ 0x6d109c0] TB:0.055559 FRAME_RATE:17.999000 SAMPLE_RATE:nan
  
  [auto_scaler_0 @ 0x6d105c0] w:1632 h:1200 fmt:bgr24 sar:0/1 -> w:1632 h:1200 fmt:yuv444p sar:0/1 flags:0x4
  
  [libx264 @ 0x6cfb2c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0x6cfb2c0] profile High 4:4:4 Predictive, level 4.0, 4:4:4, 8-bit
  
  [libx264 @ 0x6cfb2c0] 264 - core 157 r2935 545de2f - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=6 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
  
  Output #0, matroska, to 'f.mkv':
  
    Metadata:
  
      encoder         : Lavf58.26.100
  
      Stream #0:0: Video: h264 (libx264), 1 reference frame (H264 / 0x34363248), yuv444p, 1632x1200, q=-1--1, 30 fps, 1k tbn, 30 tbc
  
      Metadata:
  
        encoder         : Lavc58.46.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
  Past duration 0.666481 too large
  
  *** dropping frame 5 from stream 0 at ts 3
  
  Past duration 0.666191 too large
  
  *** dropping frame 9 from stream 0 at ts 8
  
  Past duration 0.665916 too large
  
  *** dropping frame 13 from stream 0 at ts 13
  
  Past duration 0.665642 too large
  
  *** dropping frame 17 from stream 0 at ts 18
  
  Past duration 0.665367 too large
  
  *** dropping frame 21 from stream 0 at ts 23
  
  Past duration 0.665092 too large
  
  *** dropping frame 25 from stream 0 at ts 28
  
  Past duration 0.664803 too large
  
  *** dropping frame 29 from stream 0 at ts 33me=00:00:00.00 bitrate=N/A dup=0 drop=6 speed=   0x    
  
  Past duration 0.664528 too large
  
  *** dropping frame 33 from stream 0 at ts 38
  
  Past duration 0.664253 too large
  
  *** dropping frame 37 from stream 0 at ts 43
  
  Past duration 0.663979 too large
  
  *** dropping frame 41 from stream 0 at ts 48
  
  Past duration 0.663689 too large
  
  *** dropping frame 45 from stream 0 at ts 53
  
  Past duration 0.663414 too large      1kB time=00:00:00.00 bitrate=N/A dup=0 drop=11 speed=   0x    
  
  *** dropping frame 49 from stream 0 at ts 58
  
  Past duration 0.663139 too large
  
  *** dropping frame 53 from stream 0 at ts 63ime=00:00:00.00 bitrate=5768.0kbits/s dup=0 drop=12 speed=0.00049x    
  
  Past duration 0.662865 too large
  
  *** dropping frame 57 from stream 0 at ts 68ime=00:00:00.13 bitrate=  43.0kbits/s dup=0 drop=13 speed=0.0514x    
  
  Past duration 0.662590 too large
  
  *** dropping frame 61 from stream 0 at ts 73ime=00:00:00.30 bitrate=  19.2kbits/s dup=0 drop=14 speed=0.094x    
  
  Past duration 0.662300 too large
  
  *** dropping frame 65 from stream 0 at ts 78ime=00:00:00.46 bitrate=  12.3kbits/s dup=0 drop=15 speed=0.125x    
  
  Past duration 0.662025 too large       1kB time=00:00:00.60 bitrate=   9.6kbits/s dup=0 drop=16 speed=0.142x    
  
  *** dropping frame 69 from stream 0 at ts 83
  
  Past duration 0.661751 too large       1kB time=00:00:00.76 bitrate=   7.5kbits/s dup=0 drop=17 speed=0.162x    
  
  *** dropping frame 73 from stream 0 at ts 88
  
  Past duration 0.661476 too large       1kB time=00:00:00.93 bitrate=   6.2kbits/s dup=0 drop=18 speed=0.175x    
  
  *** dropping frame 77 from stream 0 at ts 93
  
  Past duration 0.661201 too large
  
  *** dropping frame 81 from stream 0 at ts 98ime=00:00:01.13 bitrate=8036.9kbits/s dup=0 drop=19 speed=0.193x    
  
  Past duration 0.660912 too large
  
  *** dropping frame 85 from stream 0 at ts 103me=00:00:01.30 bitrate=7005.3kbits/s dup=0 drop=20 speed=0.204x    
  
  Past duration 0.660637 too large
  
  *** dropping frame 89 from stream 0 at ts 108me=00:00:01.46 bitrate=6208.3kbits/s dup=0 drop=21 speed=0.21x    
  
  Past duration 0.660362 too large
  
  *** dropping frame 93 from stream 0 at ts 113
  
  Past duration 0.660088 too large    1113kB time=00:00:01.76 bitrate=5154.9kbits/s dup=0 drop=23 speed=0.235x    
  
  *** dropping frame 97 from stream 0 at ts 118
  
  Past duration 0.659813 too large    1113kB time=00:00:01.83 bitrate=4969.4kbits/s dup=0 drop=24 speed=0.229x    
  
  *** dropping frame 101 from stream 0 at ts 123
  
  Past duration 0.659523 too large
  
  *** dropping frame 105 from stream 0 at ts 128e=00:00:02.13 bitrate=4270.8kbits/s dup=0 drop=25 speed=0.235x    
  
  Past duration 0.659248 too large
  
  *** dropping frame 109 from stream 0 at ts 133
  
  Past duration 0.658974 too large    2399kB time=00:00:02.43 bitrate=8075.2kbits/s dup=0 drop=27 speed=0.252x    
  
  *** dropping frame 113 from stream 0 at ts 138
  
  Past duration 0.658699 too large
  
  *** dropping frame 117 from stream 0 at ts 143e=00:00:02.63 bitrate=7462.1kbits/s dup=0 drop=28 speed=0.25x    
  
  Past duration 0.658424 too large
  
  *** dropping frame 121 from stream 0 at ts 148
  
  Past duration 0.658134 too large    2399kB time=00:00:02.93 bitrate=6699.1kbits/s dup=0 drop=30 speed=0.266x    
  
  *** dropping frame 125 from stream 0 at ts 153
  
  Past duration 0.657860 too large
  
  *** dropping frame 129 from stream 0 at ts 158e=00:00:03.13 bitrate=6271.6kbits/s dup=0 drop=31 speed=0.265x    
  
  Past duration 0.657585 too large
  
  *** dropping frame 133 from stream 0 at ts 163
  
  Past duration 0.657310 too large    2399kB time=00:00:03.33 bitrate=5895.4kbits/s dup=0 drop=33 speed=0.271x    
  
  *** dropping frame 137 from stream 0 at ts 168e=00:00:03.46 bitrate=5667.6kbits/s dup=0 drop=33 speed=0.269x    
  
  Past duration 0.657036 too large
  
  *** dropping frame 141 from stream 0 at ts 173
  
  Past duration 0.656746 too large
  
  No more output streams to write to, finishing.e=00:00:03.80 bitrate=5171.0kbits/s dup=0 drop=35 speed=0.279x    
  
  frame=  145 fps=8.0 q=-1.0 Lsize=    4590kB time=00:00:05.90 bitrate=6372.0kbits/s dup=0 drop=35 speed=0.326x    
  
  video:4588kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.042357%
  
  Input file #0 (f.avi):
  
    Input stream #0:0 (video): 181 packets read (1063411200 bytes); 181 frames decoded; 
  
    Total: 181 packets (1063411200 bytes) demuxed
  
  Output file #0 (f.mkv):
  
    Output stream #0:0 (video): 145 frames encoded; 145 packets muxed (4698140 bytes); 
  
    Total: 145 packets (4698140 bytes) muxed
  
  [AVIOContext @ 0x6cfe940] Statistics: 20 seeks, 33 writeouts
  
  [libx264 @ 0x6cfb2c0] frame I:4     Avg QP:25.17  size: 84331
  
  [libx264 @ 0x6cfb2c0] frame P:40    Avg QP:26.64  size: 47807
  
  [libx264 @ 0x6cfb2c0] frame B:101   Avg QP:27.85  size: 24236
  
  [libx264 @ 0x6cfb2c0] consecutive B-frames:  4.1%  8.3%  2.1% 85.5%
  
  [libx264 @ 0x6cfb2c0] mb I  I16..4: 29.5%  0.0% 70.5%
  
  [libx264 @ 0x6cfb2c0] mb P  I16..4: 12.0%  0.0% 20.1%  P16..4: 38.5% 16.5%  4.5%  0.0%  0.0%    skip: 8.4%
  
  [libx264 @ 0x6cfb2c0] mb B  I16..4:  1.8%  0.0%  2.7%  B16..8: 46.5% 11.4%  1.6%  direct: 7.6%  skip:28.4%  L0:40.6% L1:55.6% BI: 3.8%
  
  [libx264 @ 0x6cfb2c0] coded y,u,v intra: 55.9% 11.8% 19.2% inter: 22.1% 1.1% 2.6%
  
  [libx264 @ 0x6cfb2c0] i16 v,h,dc,p: 30% 15%  7% 48%
  
  [libx264 @ 0x6cfb2c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 16% 18%  7%  8%  8%  7%  7%  3%
  
  [libx264 @ 0x6cfb2c0] Weighted P-Frames: Y:17.5% UV:10.0%
  
  [libx264 @ 0x6cfb2c0] ref P L0: 54.3% 15.8% 20.0%  8.8%  1.2%
  
  [libx264 @ 0x6cfb2c0] ref B L0: 87.9%  9.3%  2.8%
  
  [libx264 @ 0x6cfb2c0] ref B L1: 95.9%  4.1%
  
  [libx264 @ 0x6cfb2c0] kb/s:6263.27
  
  [AVIOContext @ 0x6cff580] Statistics: 1063666996 bytes read, 4 seeks