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• ffmpeg MKV to MP4 format conversion issues

  28 septembre 2019, par Lucas Lecce

  I converted a 3Gb MKV video file to MP4 format using the following ffmpeg command :

  ffmpeg -i input.mkv -c: v libx264 -crf 23 -c: a aac -movflags faststart output.mp4

  ffmpeg -i input.mkv -acodec copy -vcodec copy output.mp4
  
  ffmpeg version N-95111-g87ddf9f1ef Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 9.2.1 (GCC) 20190918
  
    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-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-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  
    libavutil      56. 35.100 / 56. 35.100
  
    libavcodec     58. 59.100 / 58. 59.100
  
    libavformat    58. 33.100 / 58. 33.100
  
    libavdevice    58.  9.100 / 58.  9.100
  
    libavfilter     7. 59.100 /  7. 59.100
  
    libswscale      5.  6.100 /  5.  6.100
  
    libswresample   3.  6.100 /  3.  6.100
  
    libpostproc    55.  6.100 / 55.  6.100
  
  Input #0, matroska,webm, from 'input.mkv':
  
    Metadata:
  
      title           : claucha75
  
      encoder         : libebml v1.3.5 + libmatroska v1.4.8
  
      creation_time   : 2018-01-23T22:07:33.000000Z
  
    Duration: 01:37:13.89, start: 0.000000, bitrate: 5044 kb/s
  
      Stream #0:0: Video: h264 (High), yuv420p(tv, bt709, progressive), 1920x1080, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
  
      Metadata:
  
        title           : claucha75
  
        BPS             : 4146894
  
        BPS-eng         : 4146894
  
        DURATION        : 01:37:12.952000000
  
        DURATION-eng    : 01:37:12.952000000
  
        NUMBER_OF_FRAMES: 139851
  
        NUMBER_OF_FRAMES-eng: 139851
  
        NUMBER_OF_BYTES : 3023579528
  
        NUMBER_OF_BYTES-eng: 3023579528
  
        _STATISTICS_WRITING_APP: mkvmerge v20.0.0 ('I Am The Sun') 64-bit
  
        _STATISTICS_WRITING_APP-eng: mkvmerge v20.0.0 ('I Am The Sun') 64-bit
  
        _STATISTICS_WRITING_DATE_UTC: 2018-01-23 22:07:33
  
        _STATISTICS_WRITING_DATE_UTC-eng: 2018-01-23 22:07:33
  
        _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  
      Stream #0:1(spa): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s (default)
  
      Metadata:
  
        title           : Latino
  
        BPS             : 448000
  
        BPS-eng         : 448000
  
        DURATION        : 01:37:13.888000000
  
        DURATION-eng    : 01:37:13.888000000
  
        NUMBER_OF_FRAMES: 182309
  
        NUMBER_OF_FRAMES-eng: 182309
  
        NUMBER_OF_BYTES : 326697728
  
        NUMBER_OF_BYTES-eng: 326697728
  
        _STATISTICS_WRITING_APP: mkvmerge v20.0.0 ('I Am The Sun') 64-bit
  
        _STATISTICS_WRITING_APP-eng: mkvmerge v20.0.0 ('I Am The Sun') 64-bit
  
        _STATISTICS_WRITING_DATE_UTC: 2018-01-23 22:07:33
  
        _STATISTICS_WRITING_DATE_UTC-eng: 2018-01-23 22:07:33
  
        _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  
      Stream #0:2(eng): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
  
      Metadata:
  
        title           : Ingles
  
        BPS             : 448000
  
        BPS-eng         : 448000
  
        DURATION        : 01:37:13.856000000
  
        DURATION-eng    : 01:37:13.856000000
  
        NUMBER_OF_FRAMES: 182308
  
        NUMBER_OF_FRAMES-eng: 182308
  
        NUMBER_OF_BYTES : 326695936
  
        NUMBER_OF_BYTES-eng: 326695936
  
        _STATISTICS_WRITING_APP: mkvmerge v20.0.0 ('I Am The Sun') 64-bit
  
        _STATISTICS_WRITING_APP-eng: mkvmerge v20.0.0 ('I Am The Sun') 64-bit
  
        _STATISTICS_WRITING_DATE_UTC: 2018-01-23 22:07:33
  
        _STATISTICS_WRITING_DATE_UTC-eng: 2018-01-23 22:07:33
  
        _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  
      Stream #0:3(spa): Subtitle: subrip
  
      Metadata:
  
        title           : Sub. Latino
  
        BPS             : 58
  
        BPS-eng         : 58
  
        DURATION        : 01:27:56.723000000
  
        DURATION-eng    : 01:27:56.723000000
  
        NUMBER_OF_FRAMES: 1048
  
        NUMBER_OF_FRAMES-eng: 1048
  
        NUMBER_OF_BYTES : 38641
  
        NUMBER_OF_BYTES-eng: 38641
  
        _STATISTICS_WRITING_APP: mkvmerge v20.0.0 ('I Am The Sun') 64-bit
  
        _STATISTICS_WRITING_APP-eng: mkvmerge v20.0.0 ('I Am The Sun') 64-bit
  
        _STATISTICS_WRITING_DATE_UTC: 2018-01-23 22:07:33
  
        _STATISTICS_WRITING_DATE_UTC-eng: 2018-01-23 22:07:33
  
        _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  
      Stream #0:4(eng): Subtitle: subrip
  
      Metadata:
  
        title           : Sub. Ingles
  
        BPS             : 72
  
        BPS-eng         : 72
  
        DURATION        : 01:32:29.880000000
  
        DURATION-eng    : 01:32:29.880000000
  
        NUMBER_OF_FRAMES: 1820
  
        NUMBER_OF_FRAMES-eng: 1820
  
        NUMBER_OF_BYTES : 50243
  
        NUMBER_OF_BYTES-eng: 50243
  
        _STATISTICS_WRITING_APP: mkvmerge v20.0.0 ('I Am The Sun') 64-bit
  
        _STATISTICS_WRITING_APP-eng: mkvmerge v20.0.0 ('I Am The Sun') 64-bit
  
        _STATISTICS_WRITING_DATE_UTC: 2018-01-23 22:07:33
  
        _STATISTICS_WRITING_DATE_UTC-eng: 2018-01-23 22:07:33
  
        _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  
  File 'output.mp4' already exists. Overwrite ? [y/N] y
  
  [mp4 @ 000002935ee0ff00] track 1: codec frame size is not set
  
  Output #0, mp4, to 'output.mp4':
  
    Metadata:
  
      title           : claucha75
  
      encoder         : Lavf58.33.100
  
      Stream #0:0: Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 23.98 fps, 23.98 tbr, 16k tbn, 1k tbc (default)
  
      Metadata:
  
        title           : claucha75
  
        BPS             : 4146894
  
        BPS-eng         : 4146894
  
        DURATION        : 01:37:12.952000000
  
        DURATION-eng    : 01:37:12.952000000
  
        NUMBER_OF_FRAMES: 139851
  
        NUMBER_OF_FRAMES-eng: 139851
  
        NUMBER_OF_BYTES : 3023579528
  
        NUMBER_OF_BYTES-eng: 3023579528
  
        _STATISTICS_WRITING_APP: mkvmerge v20.0.0 ('I Am The Sun') 64-bit
  
        _STATISTICS_WRITING_APP-eng: mkvmerge v20.0.0 ('I Am The Sun') 64-bit
  
        _STATISTICS_WRITING_DATE_UTC: 2018-01-23 22:07:33
  
        _STATISTICS_WRITING_DATE_UTC-eng: 2018-01-23 22:07:33
  
        _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  
      Stream #0:1(spa): Audio: ac3 (ac-3 / 0x332D6361), 48000 Hz, 5.1(side), fltp, 448 kb/s (default)
  
      Metadata:
  
        title           : Latino
  
        BPS             : 448000
  
        BPS-eng         : 448000
  
        DURATION        : 01:37:13.888000000
  
        DURATION-eng    : 01:37:13.888000000
  
        NUMBER_OF_FRAMES: 182309
  
        NUMBER_OF_FRAMES-eng: 182309
  
        NUMBER_OF_BYTES : 326697728
  
        NUMBER_OF_BYTES-eng: 326697728
  
        _STATISTICS_WRITING_APP: mkvmerge v20.0.0 ('I Am The Sun') 64-bit
  
        _STATISTICS_WRITING_APP-eng: mkvmerge v20.0.0 ('I Am The Sun') 64-bit
  
        _STATISTICS_WRITING_DATE_UTC: 2018-01-23 22:07:33
  
        _STATISTICS_WRITING_DATE_UTC-eng: 2018-01-23 22:07:33
  
        _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #0:1 -> #0:1 (copy)
  
  Press [q] to stop, [?] for help
  
  frame=139851 fps=2149 q=-1.0 Lsize= 3275868kB time=01:37:13.85 bitrate=4600.0kbits/s speed=89.7x
  
  video:2952714kB audio:319041kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.125715%

  The command produces a MP4 file. The file takes a long time to open and then it takes several more minutes for a frame to appear. The converted file is also missing audio.

  Does anyone have an idea about the slow loading time and missing audio ?

• how to solve ffmpeg video merging complain about parameters mismatching

  22 septembre 2019, par mohammad rostami siahgeli

  I’m trying to concatenate an intro video to a main video. Here’s my command :

  ffmpeg -i C:\Temp\intro.mp4 -i C:\Temp\main.mp4 -filter_complex "[0:v:0][0:a:0][1:v:0][1:a:0]concat=n=2:v=1:a=1[outv][outa]" -map "[outv]" -map "[outa]" C:\Temp\output.mp4

  When I run this command in cmd, I get the following error :

  ffmpeg version N-95004-g2f87c9f646 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 9.2.1 (GCC) 20190918
  
    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-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-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  
    libavutil      56. 35.100 / 56. 35.100
  
    libavcodec     58. 58.101 / 58. 58.101
  
    libavformat    58. 33.100 / 58. 33.100
  
    libavdevice    58.  9.100 / 58.  9.100
  
    libavfilter     7. 58.102 /  7. 58.102
  
    libswscale      5.  6.100 /  5.  6.100
  
    libswresample   3.  6.100 /  3.  6.100
  
    libpostproc    55.  6.100 / 55.  6.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Temp\intro.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41
  
      creation_time   : 2019-09-21T09:23:34.000000Z
  
    Duration: 00:00:07.32, start: 0.000000, bitrate: 706 kb/s
  
      Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 960x540, 323 kb/s, 15 fps, 15 tbr, 30k tbn, 30 tbc (default)
  
      Metadata:
  
        creation_time   : 2019-09-21T09:23:34.000000Z
  
        handler_name    : ?Mainconcept Video Media Handler
  
        encoder         : AVC Coding
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 317 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-09-21T09:23:34.000000Z
  
        handler_name    : #Mainconcept MP4 Sound Media Handler
  
  Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Temp\main.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf56.40.101
  
    Duration: 00:00:08.78, start: 0.000000, bitrate: 499 kb/s
  
      Stream #1:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 640x640 [SAR 1:1 DAR 1:1], 430 kb/s, 29.97 fps, 29.97 tbr, 11988 tbn, 59.94 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 64 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Stream mapping:
  
    Stream #0:0 (h264) -> concat:in0:v0
  
    Stream #0:1 (aac) -> concat:in0:a0
  
    Stream #1:0 (h264) -> concat:in1:v0
  
    Stream #1:1 (aac) -> concat:in1:a0
  
    concat:out:v0 -> Stream #0:0 (libx264)
  
    concat:out:a0 -> Stream #0:1 (aac)
  
  Press [q] to stop, [?] for help
  
  [Parsed_concat_0 @ 0000018168eedec0] Input link in0:v0 parameters (size 640x640, SAR 1:1) do not match the corresponding output link in0:v0 parameters (960x540, SAR 1:1)
  
  [Parsed_concat_0 @ 0000018168eedec0] Failed to configure output pad on Parsed_concat_0
  
  Error reinitializing filters!
  
  Failed to inject frame into filter network: Invalid argument
  
  Error while processing the decoded data for stream #1:0
  
  Conversion failed!

  I’m not a video ninja. I know parameters are different, but I have no idea after hours of search on how to solve this. A lot of online video services concatenate these two videos and give me a reasonable result. They have a GUI though. I need to do it in code, so that I can automate it.

  How can I solve these errors ?

  Update : This is the second error :

  ffmpeg version N-95004-g2f87c9f646 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 9.2.1 (GCC) 20190918
  
    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-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-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  
    libavutil      56. 35.100 / 56. 35.100
  
    libavcodec     58. 58.101 / 58. 58.101
  
    libavformat    58. 33.100 / 58. 33.100
  
    libavdevice    58.  9.100 / 58.  9.100
  
    libavfilter     7. 58.102 /  7. 58.102
  
    libswscale      5.  6.100 /  5.  6.100
  
    libswresample   3.  6.100 /  3.  6.100
  
    libpostproc    55.  6.100 / 55.  6.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Temp\intro.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp42mp41
  
      creation_time   : 2019-09-21T09:23:34.000000Z
  
    Duration: 00:00:07.32, start: 0.000000, bitrate: 706 kb/s
  
      Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 960x540, 323 kb/s, 15 fps, 15 tbr, 30k tbn, 30 tbc (default)
  
      Metadata:
  
        creation_time   : 2019-09-21T09:23:34.000000Z
  
        handler_name    : ?Mainconcept Video Media Handler
  
        encoder         : AVC Coding
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 317 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-09-21T09:23:34.000000Z
  
        handler_name    : #Mainconcept MP4 Sound Media Handler
  
  Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Temp\main.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf56.40.101
  
    Duration: 00:00:08.78, start: 0.000000, bitrate: 499 kb/s
  
      Stream #1:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 640x640 [SAR 1:1 DAR 1:1], 430 kb/s, 29.97 fps, 29.97 tbr, 11988 tbn, 59.94 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 64 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  File 'C:\Temp\output.mp4' already exists. Overwrite ? [y/N] Y
  
  Stream mapping:
  
    Stream #0:0 (h264) -> scale
  
    Stream #0:1 (aac) -> concat:in0:a0
  
    Stream #1:0 (h264) -> concat:in1:v0
  
    Stream #1:1 (aac) -> concat:in1:a0
  
    concat:out:v0 -> Stream #0:0 (libx264)
  
    concat:out:a0 -> Stream #0:1 (aac)
  
  Press [q] to stop, [?] for help
  
  [mp4 @ 000002f17869d7c0] Frame rate very high for a muxer not efficiently supporting it.
  
  Please consider specifying a lower framerate, a different muxer or -vsync 2
  
  [libx264 @ 000002f178acfec0] using SAR=1/1
  
  [libx264 @ 000002f178acfec0] MB rate (1600000000) > level limit (16711680)
  
  [libx264 @ 000002f178acfec0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
  
  [libx264 @ 000002f178acfec0] profile High, level 6.2, 4:2:0, 8-bit
  
  [libx264 @ 000002f178acfec0] 264 - core 158 r2984 3759fcb - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - 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
  
  More than 1000 frames duplicated
  
  Too many packets buffered for output stream 0:0.
  
  [libx264 @ 000002f178acfec0] frame I:1     Avg QP:16.45  size:  4679
  
  [libx264 @ 000002f178acfec0] frame P:32    Avg QP:14.16  size:    33
  
  [libx264 @ 000002f178acfec0] frame B:96    Avg QP:17.67  size:    30
  
  [libx264 @ 000002f178acfec0] consecutive B-frames:  0.8%  0.0%  0.0% 99.2%
  
  [libx264 @ 000002f178acfec0] mb I  I16..4: 58.1% 34.8%  7.1%
  
  [libx264 @ 000002f178acfec0] mb P  I16..4:  0.1%  0.0%  0.0%  P16..4:  0.0%  0.0%  0.0%  0.0%  0.0%    skip:99.9%
  
  [libx264 @ 000002f178acfec0] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.8%  0.0%  0.0%  direct: 0.0%  skip:99.2%  L0: 0.0% L1:100.0% BI: 0.0%
  
  [libx264 @ 000002f178acfec0] 8x8 transform intra:33.8%
  
  [libx264 @ 000002f178acfec0] coded y,uvDC,uvAC intra: 4.6% 8.2% 7.3% inter: 0.0% 0.0% 0.0%
  
  [libx264 @ 000002f178acfec0] i16 v,h,dc,p: 74% 22%  5%  0%
  
  [libx264 @ 000002f178acfec0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu:  1% 16% 83%  0%  0%  0%  0%  0%  0%
  
  [libx264 @ 000002f178acfec0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 17% 26%  7%  5%  5%  5%  6%  5%
  
  [libx264 @ 000002f178acfec0] i8c dc,h,v,p: 93%  3%  3%  1%
  
  [libx264 @ 000002f178acfec0] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 000002f178acfec0] ref P L0: 62.5% 37.5%
  
  [libx264 @ 000002f178acfec0] ref B L1: 99.8%  0.2%
  
  [libx264 @ 000002f178acfec0] kb/s:535069.75
  
  Conversion failed!

• ffmpeg encoded hls makes audio and video progressively out of sync

  21 septembre 2020, par eschie

  When trying to encoding a source .mp4 to multiple bitrates and sizes for adaptive HLSv3 playback the resulting audio and video become progressively out of sync. When scrubbing to a later point it seems to reset, and stay in sync.

  



  I'm on the latest ffmpeg 4.2.1 via homebrew-ffmpeg, with the libfdk-aac codec. Note, this was also occurring with ffmpeg 4.1.

  



  ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers
  built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.1-with-options_1 --enable-shared --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libaom --enable-libmp3lame --enable-libopus --enable-libsnappy --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --disable-libjack --disable-indev=jack --enable-opencl --enable-videotoolbox --disable-htmlpages --enable-libfdk-aac --enable-nonfree
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100


  



  The audio and video streams are marginally off, would that cause this problem ?

  



  ffprobe -v error -select_streams v:0 -show_entries stream=duration -of default=noprint_wrappers=1:nokey=1 INPUT_FILE.mp4
80.480400

  



  ffprobe -v error -select_streams a:0 -show_entries stream=duration -of default=noprint_wrappers=1:nokey=1 INPUT_FILE.mp4
80.469333

  



  Here is some metadata on the source file :

  



  General
Complete name                            : INPUT_VIDEO.mp4
Format                                   : MPEG-4
Format profile                           : Base Media / Version 2
Codec ID                                 : mp42 (mp42/mp41)
File size                                : 236 MiB
Duration                                 : 1 min 21 s
Overall bit rate mode                    : Variable
Overall bit rate                         : 24.2 Mb/s
Encoded date                             : UTC 2019-08-27 22:13:53
Tagged date                              : UTC 2019-08-27 22:15:15
TIM                                      : 00;00;00;00
TSC                                      : 30000
TSZ                                      : 1001

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : Main@L4.1
Format settings                          : CABAC / 2 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 2 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 1 min 21 s
Bit rate mode                            : Variable
Bit rate                                 : 23.8 Mb/s
Maximum bit rate                         : 768 kb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 29.970 (30000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.383
Stream size                              : 233 MiB (99%)
Language                                 : English
Encoded date                             : UTC 2019-08-27 22:13:53
Tagged date                              : UTC 2019-08-27 22:13:53
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709
Codec configuration box                  : avcC

Audio
ID                                       : 2
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : mp4a-40-2
Duration                                 : 1 min 21 s
Source duration                          : 1 min 21 s
Bit rate mode                            : Constant
Bit rate                                 : 317 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 46.875 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 3.10 MiB (1%)
Source stream size                       : 3.10 MiB (1%)
Language                                 : English
Encoded date                             : UTC 2019-08-27 22:13:53
Tagged date                              : UTC 2019-08-27 22:13:53


  



  And the encoding command :

  



  ffmpeg \
-i INPUT_VIDEO \
-dn \
-sn \
-filter_complex \
"[0:v]fps=fps=24000/1001, \
setpts=(PTS-STARTPTS), \
split=12[vsplit1][vsplit2][vsplit3][vsplit4][vsplit5][vsplit6][vsplit7][vsplit8][vsplit9][vsplit10][vsplit11][vsplit12]; \
[vsplit1]scale=-1:1080[video_1080_4.1]; \
[vsplit2]scale=-1:720[video_720_4.1]; \
[vsplit3]scale=-1:720[video_720_3.1]; \
[vsplit4]scale=-1:540[video_540_3.1]; \
[vsplit5]scale=-1:432[video_432_3.1]; \
[vsplit6]scale=-1:270[video_270_3.0]; \
[vsplit7]scale=-1:270[video_270_3.1]; \
[vsplit8]scale=-1:144[video_144_4.1]; \
[vsplit9]scale=-1:144[video_144_3.0]; \
[vsplit10]scale=1920:1080[base_1080]; \
[vsplit11]scale=1280:720[base_720]; \
[vsplit12]scale=640:360[base_360]" \
\
-map "[video_1080_4.1]" \
-r:v:0 "24000/1001" \
-c:v:0 "libx264" \
-x264-params:0 "keyint=144:min-keyint=144:scenecut=0:open_gop=0" \
-preset:v:0 "slow" \
-profile:v:0 "high" \
-level:v:0 "4.1" \
-refs:v:0 "2" \
-b-pyramid:v:0 "strict" \
-tune:v:0 "film" \
-b:v:0 "4800000" \
-maxrate:v:0 "4800000" \
-bufsize:v:0 "6*4800000/8" \
-vsync:v:0 "cfr" \
-bsf:v:0 "h264_metadata=fixed_frame_rate_flag=1" \
\
-map "[video_720_4.1]" \
-r:v:1 "24000/1001" \
-c:v:1 "libx264" \
-x264-params:1 "keyint=144:min-keyint=144:scenecut=0:open_gop=0" \
-preset:v:1 "slow" \
-profile:v:1 "main" \
-level:v:1 "4.1" \
-refs:v:1 "2" \
-b-pyramid:v:1 "strict" \
-tune:v:1 "film" \
-b:v:1 "3200000" \
-maxrate:v:1 "3200000" \
-bufsize:v:1 "6*3200000/8" \
-vsync:v:1 "cfr" \
-bsf:v:1 "h264_metadata=fixed_frame_rate_flag=1" \
\
-map "[video_720_3.1]" \
-r:v:2 "24000/1001" \
-c:v:2 "libx264" \
-x264-params:2 "keyint=144:min-keyint=144:scenecut=0:open_gop=0" \
-preset:v:2 "slow" \
-profile:v:2 "main" \
-level:v:2 "3.1" \
-refs:v:2 "2" \
-b-pyramid:v:2 "strict" \
-tune:v:2 "film" \
-b:v:2 "2200000" \
-maxrate:v:2 "2200000" \
-bufsize:v:2 "6*2200000/8" \
-vsync:v:2 "cfr" \
-bsf:v:2 "h264_metadata=fixed_frame_rate_flag=1" \
\
-map "[video_540_3.1]" \
-r:v:3 "24000/1001" \
-c:v:3 "libx264" \
-x264-params:3 "keyint=144:min-keyint=144:scenecut=0:open_gop=0" \
-preset:v:3 "slow" \
-profile:v:3 "main" \
-level:v:3 "3.1" \
-refs:v:3 "2" \
-b-pyramid:v:3 "strict" \
-tune:v:3 "film" \
-b:v:3 "1400000" \
-maxrate:v:3 "1400000" \
-bufsize:v:3 "6*1400000/8" \
-vsync:v:3 "cfr" \
-bsf:v:3 "h264_metadata=fixed_frame_rate_flag=1" \
\
-map "[video_432_3.1]" \
-r:v:4 "24000/1001" \
-c:v:4 "libx264" \
-x264-params:4 "keyint=144:min-keyint=144:scenecut=0:open_gop=0" \
-preset:v:4 "slow" \
-profile:v:4 "main" \
-level:v:4 "3.1" \
-refs:v:4 "2" \
-b-pyramid:v:4 "strict" \
-tune:v:4 "film" \
-b:v:4 "900000" \
-maxrate:v:4 "900000" \
-bufsize:v:4 "6*900000/8" \
-vsync:v:4 "cfr" \
-bsf:v:4 "h264_metadata=fixed_frame_rate_flag=1" \
\
-map "[video_270_3.0]" \
-r:v:5 "24000/1001" \
-c:v:5 "libx264" \
-x264-params:5 "keyint=144:min-keyint=144:scenecut=0:open_gop=0" \
-preset:v:5 "slow" \
-profile:v:5 "baseline" \
-level:v:5 "3.0" \
-refs:v:5 "2" \
-b-pyramid:v:5 "strict" \
-tune:v:5 "film" \
-b:v:5 "400000" \
-maxrate:v:5 "400000" \
-bufsize:v:5 "6*400000/8" \
-vsync:v:5 "cfr" \
-bsf:v:5 "h264_metadata=fixed_frame_rate_flag=1" \
\
-map "[video_270_3.1]" \
-r:v:6 "24000/1001" \
-c:v:6 "libx264" \
-x264-params:6 "keyint=144:min-keyint=144:scenecut=0:open_gop=0" \
-preset:v:6 "slow" \
-profile:v:6 "main" \
-level:v:6 "3.1" \
-refs:v:6 "2" \
-b-pyramid:v:6 "strict" \
-tune:v:6 "film" \
-b:v:6 "200000" \
-maxrate:v:6 "200000" \
-bufsize:v:6 "6*200000/8" \
-vsync:v:6 "cfr" \
-bsf:v:6 "h264_metadata=fixed_frame_rate_flag=1" \
\
-map "[video_144_4.1]" \
-r:v:7 "24000/1001" \
-c:v:7 "libx264" \
-x264-params:7 "keyint=144:min-keyint=144:scenecut=0:open_gop=0" \
-preset:v:7 "slow" \
-profile:v:7 "high" \
-level:v:7 "4.1" \
-refs:v:7 "2" \
-b-pyramid:v:7 "strict" \
-tune:v:7 "film" \
-b:v:7 "64000" \
-maxrate:v:7 "64000" \
-bufsize:v:7 "6*64000/8" \
-vsync:v:7 "cfr" \
-bsf:v:7 "h264_metadata=fixed_frame_rate_flag=1" \
\
-map "[video_144_3.0]" \
-r:v:8 "24000/1001" \
-c:v:8 "libx264" \
-x264-params:8 "keyint=144:min-keyint=144:scenecut=0:open_gop=0" \
-preset:v:8 "slow" \
-profile:v:8 "baseline" \
-level:v:8 "3.0" \
-refs:v:8 "2" \
-b-pyramid:v:8 "strict" \
-tune:v:8 "film" \
-b:v:8 "56000" \
-maxrate:v:8 "56000" \
-bufsize:v:8 "6*56000/8" \
-vsync:v:8 "cfr" \
-bsf:v:8 "h264_metadata=fixed_frame_rate_flag=1" \
\
-map "[base_1080]" \
-c:v:9 "libx264" \
-preset:v:9 "slow" \
\
-map "[base_720]" \
-c:v:10 "libx264" \
-preset:v:10 "slow" \
\
-map "[base_360]" \
-c:v:11 "libx264" \
-preset:v:11 "slow" \
\
-map a:0 -map a:0 -map a:0 -map a:0 -map a:0 -map a:0 -map a:0 -map a:0 -map a:0 -map a:0 -map a:0 -map a:0 \
-c:a "libfdk_aac" \
-ar "48000" \
-ab "128k" \
-af "aresample=async=1:min_hard_comp=0.100000:first_pts=0" \
\
-f tee \
-flags +global_header \
"[select=\'v:0,a:0,v:1,a:1,v:2,a:2,v:3,a:3,v:4,a:4,v:5,a:5,v:6,a:6,v:7,a:7,v:8,a:8\':f=hls:hls_flags=discont_start+temp_file:hls_time=6:hls_list_size=0:var_stream_map=\'v:0,a:0 v:1,a:1 v:2,a:2 v:3,a:3 v:4,a:4 v:5,a:5 v:6,a:6 v:7,a:7 v:8,a:8\':master_pl_name=playlist.m3u8:hls_segment_filename=INPUT_VIDEO__%v_%03d.ts]INPUT_VIDEO/out_%v.m3u8|[select=\'v:9,a:9\':f=mp4:movflags=+faststart]INPUT_VIDEO/large-1920-1080.mp4|[select=\'v:10,a:10\':f=mp4:movflags=+faststart]INPUT_VIDEO/med-1280-720.mp4|[select=\'v:11,a:11\':f=mp4:movflags=+faststart]INPUT_VIDEO/sm-640-360.mp4"