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  • ffmpeg command working from command line but not from python subprocess.Popen

    7 novembre 2017, par Stuart Clarke

    I’m trying to run the below command from within a Python script.

    ffmpeg -y -loglevel verbose -i /var/www/Intro30.mp4 -i /var/www/temp/videoHD.mp4 -i /var/www/Credits30.mp4 -filter_complex '[0:0] [0:1] [1:0] [1:1] [2:0] [2:1] concat=n=3:v=1:a=1 [v] [a]' -map '[v]' -map '[a]' /var/www/temp/merged.mp4

    But it results in a corrupted file. This is the output.

    ffmpeg version 3.3.4-2~16.04.york0 Copyright (c) 2000-2017 the FFmpeg developers
    
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
    
  configuration: --prefix=/usr --extra-version='2~16.04.york0' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
    
  libavutil      55. 58.100 / 55. 58.100
    
  libavcodec     57. 89.100 / 57. 89.100
    
  libavformat    57. 71.100 / 57. 71.100
    
  libavdevice    57.  6.100 / 57.  6.100
    
  libavfilter     6. 82.100 /  6. 82.100
    
  libavresample   3.  5.  0 /  3.  5.  0
    
  libswscale      4.  6.100 /  4.  6.100
    
  libswresample   2.  7.100 /  2.  7.100
    
  libpostproc    54.  5.100 / 54.  5.100
    
[h264 @ 0x7f6d1ca0a7c0] Reinit context to 1920x1088, pix_fmt: yuv420p
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/Intro30.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.71.100
    
  Duration: 00:00:02.93, start: 0.000000, bitrate: 3490 kb/s
    
    Stream #0:0(und): Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 1920x1080 (1920x1088), 3507 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 2 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
[h264 @ 0x7f6d1ca334e0] Reinit context to 1920x1088, pix_fmt: yuv420p
    
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/temp/videoHD.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.71.100
    
  Duration: 00:00:57.23, start: 0.000000, bitrate: 3087 kb/s
    
    Stream #1:0(eng): Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 1920x1080 (1920x1088), 2950 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #1:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
[h264 @ 0x7f6d1ca307a0] Reinit context to 1920x1088, pix_fmt: yuv420p
    
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/Credits30.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.71.100
    
  Duration: 00:00:14.14, start: 0.000000, bitrate: 5706 kb/s
    
    Stream #2:0(und): Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 1920x1080 (1920x1088), 5711 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #2:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 2 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
    
  Stream #2:0 (h264) -> concat:in2:v0
    
  Stream #2:1 (aac) -> concat:in2:a0
    
  concat:out:v0 -> Stream #0:0 (libx264)
    
  concat:out:a0 -> Stream #0:1 (aac)
    
Press [q] to stop, [?] for help
    
[h264 @ 0x7f6d1d1210e0] Reinit context to 1920x1088, pix_fmt: yuv420p
    
[h264 @ 0x7f6d1cc07420] Reinit context to 1920x1088, pix_fmt: yuv420p
    
[h264 @ 0x7f6d1cd449a0] Reinit context to 1920x1088, pix_fmt: yuv420p
    
[graph 0 input from stream 0:0 @ 0x7f6d1d8f9400] w:1920 h:1080 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:0/1 sws_param:flags=2
    
[graph_0_in_0_1 @ 0x7f6d1d8ef520] tb:1/44100 samplefmt:fltp samplerate:44100 chlayout:0x3
    
[graph 0 input from stream 1:0 @ 0x7f6d1d1052a0] w:1920 h:1080 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:0/1 sws_param:flags=2
    
[graph_0_in_1_1 @ 0x7f6d1d105ac0] tb:1/44100 samplefmt:fltp samplerate:44100 chlayout:0x3
    
[graph 0 input from stream 2:0 @ 0x7f6d1d17fd20] w:1920 h:1080 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:0/1 sws_param:flags=2
    
[graph_0_in_2_1 @ 0x7f6d1d109d40] tb:1/44100 samplefmt:fltp samplerate:44100 chlayout:0x3
    
[libx264 @ 0x7f6d1ca9aaa0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    
[libx264 @ 0x7f6d1ca9aaa0] profile High, level 4.0
    
[libx264 @ 0x7f6d1ca9aaa0] 264 - core 148 r2795 aaa9aa8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - 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=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, mp4, to '/var/www/temp/merged.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.71.100
    
    Stream #0:0: Video: h264 (libx264), 1 reference frame ([33][0][0][0] / 0x0021), yuv420p(progressive), 1920x1080, q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
    
    Metadata:
    
      encoder         : Lavc57.89.100 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
    Stream #0:1: Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, delay 1024, 128 kb/s (default)
    
    Metadata:
    
      encoder         : Lavc57.89.100 aac
    
frame=   46 fps=0.0 q=0.0 size=       0kB time=00:00:01.62 bitrate=   0.0kbits/s speed=2.78x

    But when I run it from the command line it executes perfectly.

    ffmpeg version 3.3.4-2~16.04.york0 Copyright (c) 2000-2017 the FFmpeg developers
    
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
    
  configuration: --prefix=/usr --extra-version='2~16.04.york0' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
    
  libavutil      55. 58.100 / 55. 58.100
    
  libavcodec     57. 89.100 / 57. 89.100
    
  libavformat    57. 71.100 / 57. 71.100
    
  libavdevice    57.  6.100 / 57.  6.100
    
  libavfilter     6. 82.100 /  6. 82.100
    
  libavresample   3.  5.  0 /  3.  5.  0
    
  libswscale      4.  6.100 /  4.  6.100
    
  libswresample   2.  7.100 /  2.  7.100
    
  libpostproc    54.  5.100 / 54.  5.100
    
[h264 @ 0x7f6dc62417c0] Reinit context to 1920x1088, pix_fmt: yuv420p
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/Intro30.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.71.100
    
  Duration: 00:00:02.93, start: 0.000000, bitrate: 3490 kb/s
    
    Stream #0:0(und): Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 1920x1080 (1920x1088), 3507 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 2 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
[h264 @ 0x7f6dc626a4e0] Reinit context to 1920x1088, pix_fmt: yuv420p
    
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/temp/videoHD.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.71.100
    
  Duration: 00:00:57.23, start: 0.000000, bitrate: 3087 kb/s
    
    Stream #1:0(eng): Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 1920x1080 (1920x1088), 2950 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #1:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
[h264 @ 0x7f6dc62677a0] Reinit context to 1920x1088, pix_fmt: yuv420p
    
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/Credits30.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.71.100
    
  Duration: 00:00:14.14, start: 0.000000, bitrate: 5706 kb/s
    
    Stream #2:0(und): Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 1920x1080 (1920x1088), 5711 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #2:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 2 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
    
  Stream #2:0 (h264) -> concat:in2:v0
    
  Stream #2:1 (aac) -> concat:in2:a0
    
  concat:out:v0 -> Stream #0:0 (libx264)
    
  concat:out:a0 -> Stream #0:1 (aac)
    
Press [q] to stop, [?] for help
    
[h264 @ 0x7f6dc69580e0] Reinit context to 1920x1088, pix_fmt: yuv420p
    
[h264 @ 0x7f6dc643e420] Reinit context to 1920x1088, pix_fmt: yuv420p
    
[h264 @ 0x7f6dc657b9a0] Reinit context to 1920x1088, pix_fmt: yuv420p
    
[graph 0 input from stream 0:0 @ 0x7f6dc712fda0] w:1920 h:1080 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:0/1 sws_param:flags=2
    
[graph_0_in_0_1 @ 0x7f6dc693c040] tb:1/44100 samplefmt:fltp samplerate:44100 chlayout:0x3
    
[graph 0 input from stream 1:0 @ 0x7f6dc693cb60] w:1920 h:1080 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:0/1 sws_param:flags=2
    
[graph_0_in_1_1 @ 0x7f6dc69b68a0] tb:1/44100 samplefmt:fltp samplerate:44100 chlayout:0x3
    
[graph 0 input from stream 2:0 @ 0x7f6dc69b74a0] w:1920 h:1080 pixfmt:yuv420p tb:1/15360 fr:30/1 sar:0/1 sws_param:flags=2
    
[graph_0_in_2_1 @ 0x7f6dc6941460] tb:1/44100 samplefmt:fltp samplerate:44100 chlayout:0x3
    
[libx264 @ 0x7f6dc62d1aa0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    
[libx264 @ 0x7f6dc62d1aa0] profile High, level 4.0
    
[libx264 @ 0x7f6dc62d1aa0] 264 - core 148 r2795 aaa9aa8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - 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=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, mp4, to '/var/www/temp/merged.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.71.100
    
    Stream #0:0: Video: h264 (libx264), 1 reference frame ([33][0][0][0] / 0x0021), yuv420p(progressive), 1920x1080, q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
    
    Metadata:
    
      encoder         : Lavc57.89.100 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
    Stream #0:1: Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, delay 1024, 128 kb/s (default)
    
    Metadata:
    
      encoder         : Lavc57.89.100 aac
    
frame=   46 fps=0.0 q=0.0 size=       0kB time=00:00:01.62 bitrate=   0.0kbits/sframe=   64 fps= 59 q=29.0 size=     289kB time=00:00:02.22 bitrate=1062.4kbits/frame=   83 fps= 48 q=29.0 size=     762kB time=00:00:02.85 bitrate=2186.9kbits/[Parsed_concat_0 @ 0x7f6dc69b5ca0] EOF on in0:v0, 1 streams left in segment.
    
[Parsed_concat_0 @ 0x7f6dc69b5ca0] EOF on in0:a0, 0 streams left in segment.
    
[Parsed_concat_0 @ 0x7f6dc69b5ca0] Segment finished at pts=2902494
    
frame=  104 fps= 46 q=29.0 size=     908kB time=00:00:03.55 bitrate=2094.5kbits/frame=  123 fps= 44 q=29.0 size=    1048kB time=00:00:04.17 bitrate=2053.3kbits/frame=  140 fps= 42 q=29.0 size=    1215kB time=00:00:04.76 bitrate=2091.1kbits/frame=  149 fps= 38 q=29.0 size=    1374kB time=00:00:05.06 bitrate=2223.4kbits/frame=  161 fps= 35 q=29.0 size=    1528kB time=00:00:05.45 bitrate=2293.6kbits/frame=  173 fps= 34 q=29.0 size=    1695kB time=00:00:05.82 bitrate=2382.5kbits/frame=  180 fps= 32 q=29.0 size=    1784kB time=00:00:06.08 bitrate=2402.4kbits/frame=  193 fps= 32 q=29.0 size=    1959kB time=00:00:06.50 bitrate=2468.6kbits/frame=  200 fps= 30 q=29.0 size=    2052kB time=00:00:06.75 bitrate=2487.8kbits/frame=  211 fps= 30 q=29.0 size=    2221kB time=00:00:07.12 bitrate=2552.6kbits/frame=  221 fps= 29 q=29.0 size=    2303kB time=00:00:07.45 bitrate=2530.9kbits/frame=  232 fps= 28 q=29.0 size=    2433kB time=00:00:07.82 bitrate=2547.0kbits/frame=  245 fps= 28 q=29.0 size=    2560kB time=00:00:08.26 bitrate=2536.7kbits/frame=  255 fps= 28 q=29.0 size=    2684kB time=00:00:08.59 bitrate=2558.9kbits/frame=  264 fps= 27 q=29.0 size=    2776kB time=00:00:08.89 bitrate=2557.5kbits/frame=  275 fps= 27 q=29.0 size=    2894kB time=00:00:09.26 bitrate=2559.0kbits/frame=  285 fps= 26 q=29.0 size=    3028kB time=00:00:09.58 bitrate=2586.3kbits/frame=  295 fps= 26 q=29.0 size=    3172kB time=00:00:09.91 bitrate=2621.2kbits/frame=  303 fps= 25 q=29.0 size=    3277kB time=00:00:10.19 bitrate=2633.9kbits/frame=  314 fps= 25 q=29.0 size=    3475kB time=00:00:10.56 bitrate=2694.1kbits/frame=  322 fps= 24 q=29.0 size=    3584kB time=00:00:10.82 bitrate=2713.7kbits/frame=  330 fps= 24 q=29.0 size=    3694kB time=00:00:11.09 bitrate=2726.3kbits/frame=  336 fps= 24 q=29.0 size=    3774kB time=00:00:11.30 bitrate=2733.9kbits/frame=  344 fps= 23 q=29.0 size=    3882kB time=00:00:11.56 bitrate=2750.3kbits/frame=  353 fps= 23 q=29.0 size=    4016kB time=00:00:11.86 bitrate=2772.5kbits/frame=  363 fps= 23 q=29.0 size=    4165kB time=00:00:12.19 bitrate=2798.7kbits/frame=  371 fps= 22 q=29.0 size=    4263kB time=00:00:12.46 bitrate=2800.6kbits/frame=  381 fps= 22 q=29.0 size=    4429kB time=00:00:12.79 bitrate=2835.7kbits/frame=  388 fps= 22 q=29.0 size=    4557kB time=00:00:13.02 bitrate=2865.6kbits/frame=  397 fps= 22 q=29.0 size=    4678kB time=00:00:13.32 bitrate=2875.5kbits/frame=  406 fps= 22 q=29.0 size=    4773kB time=00:00:13.63 bitrate=2868.5kbits/frame=  414 fps= 21 q=29.0 size=    4871kB time=00:00:13.88 bitrate=2873.6kbits/frame=  419 fps= 21 q=29.0 size=    4954kB time=00:00:14.04 bitrate=2888.6kbits/frame=  427 fps= 21 q=29.0 size=    5046kB time=00:00:14.32 bitrate=2885.1kbits/frame=  435 fps= 21 q=29.0 size=    5141kB time=00:00:14.58 bitrate=2888.2kbits/frame=  443 fps= 21 q=29.0 size=    5232kB time=00:00:14.86 bitrate=2884.1kbits/frame=  452 fps= 20 q=29.0 size=    5333kB time=00:00:15.16 bitrate=2881.5kbits/frame=  463 fps= 20 q=29.0 size=    5442kB time=00:00:15.53 bitrate=2869.9kbits/frame=  472 fps= 20 q=29.0 size=    5552kB time=00:00:15.81 bitrate=2876.5kbits/frame=  479 fps= 20 q=29.0 size=    5663kB time=00:00:16.06 bitrate=2887.2kbits/frame=  489 fps= 20 q=29.0 size=    5798kB time=00:00:16.39 bitrate=2897.4kbits/frame=  499 fps= 20 q=29.0 size=    5918kB time=00:00:16.71 bitrate=2899.9kbits/frame=  509 fps= 20 q=29.0 size=    6043kB time=00:00:17.06 bitrate=2900.5kbits/frame=  521 fps= 20 q=29.0 size=    6191kB time=00:00:17.46 bitrate=2904.7kbits/frame=  533 fps= 20 q=29.0 size=    6304kB time=00:00:17.85 bitrate=2892.0kbits/frame=  542 fps= 20 q=29.0 size=    6391kB time=00:00:18.15 bitrate=2883.5kbits/frame=  553 fps= 20 q=29.0 size=    6525kB time=00:00:18.52 bitrate=2884.9kbits/frame=  563 fps= 20 q=29.0 size=    6635kB time=00:00:18.85 bitrate=2882.8kbits/frame=  573 fps= 20 q=29.0 size=    6740kB time=00:00:19.17 bitrate=2878.9kbits/frame=  585 fps= 20 q=29.0 size=    6868kB time=00:00:19.59 bitrate=2870.8kbits/frame=  595 fps= 20 q=29.0 size=    6986kB time=00:00:19.92 bitrate=2872.6kbits/frame=  606 fps= 20 q=29.0 size=    7095kB time=00:00:20.29 bitrate=2864.1kbits/frame=  617 fps= 20 q=29.0 size=    7237kB time=00:00:20.66 bitrate=2868.8kbits/frame=  629 fps= 20 q=29.0 size=    7452kB time=00:00:21.06 bitrate=2898.8kbits/frame=  639 fps= 20 q=29.0 size=    7566kB time=00:00:21.38 bitrate=2898.1kbits/frame=  647 fps= 20 q=29.0 size=    7684kB time=00:00:21.66 bitrate=2905.7kbits/frame=  657 fps= 20 q=29.0 size=    7807kB time=00:00:21.98 bitrate=2908.3kbits/frame=  667 fps= 20 q=29.0 size=    7919kB time=00:00:22.31 bitrate=2907.3kbits/frame=  677 fps= 20 q=29.0 size=    8046kB time=00:00:22.66 bitrate=2908.3kbits/frame=  687 fps= 20 q=29.0 size=    8156kB time=00:00:22.98 bitrate=2906.7kbits/frame=  699 fps= 20 q=29.0 size=    8294kB time=00:00:23.38 bitrate=2905.9kbits/frame=  711 fps= 20 q=29.0 size=    8414kB time=00:00:23.80 bitrate=2896.2kbits/frame=  722 fps= 20 q=29.0 size=    8510kB time=00:00:24.14 bitrate=2887.0kbits/frame=  733 fps= 20 q=29.0 size=    8630kB time=00:00:24.52 bitrate=2883.1kbits/frame=  745 fps= 20 q=29.0 size=    8751kB time=00:00:24.91 bitrate=2877.3kbits/frame=  756 fps= 20 q=29.0 size=    8857kB time=00:00:25.28 bitrate=2869.5kbits/frame=  766 fps= 20 q=29.0 size=    8979kB time=00:00:25.63 bitrate=2869.5kbits/frame=  777 fps= 20 q=29.0 size=    9088kB time=00:00:25.98 bitrate=2865.3kbits/frame=  787 fps= 20 q=29.0 size=    9187kB time=00:00:26.33 bitrate=2858.1kbits/frame=  798 fps= 20 q=29.0 size=    9308kB time=00:00:26.67 bitrate=2858.0kbits/frame=  808 fps= 20 q=29.0 size=    9400kB time=00:00:27.02 bitrate=2849.1kbits/frame=  820 fps= 20 q=29.0 size=    9554kB time=00:00:27.42 bitrate=2854.2kbits/frame=  830 fps= 20 q=29.0 size=    9662kB time=00:00:27.74 bitrate=2852.4kbits/frame=  842 fps= 20 q=29.0 size=    9778kB time=00:00:28.16 bitrate=2843.9kbits/frame=  854 fps= 20 q=29.0 size=    9886kB time=00:00:28.56 bitrate=2835.6kbits/frame=  864 fps= 20 q=29.0 size=    9992kB time=00:00:28.88 bitrate=2833.9kbits/frame=  876 fps= 20 q=29.0 size=   10112kB time=00:00:29.28 bitrate=2829.2kbits/frame=  889 fps= 19 q=29.0 size=   21309kB time=00:00:58.00 bitrate=3009.5kbits/frame= 1750 fps= 19 q=29.0 size=   21427kB time=00:00:58.42 bitrate=3004.5kbits/frame= 1761 fps= 19 q=29.0 size=   21553kB time=00:00:58.79 bitrate=3003.1kbits/frame= 1771 fps= 19 q=29.0 size=   21669kB time=00:00:59.11 bitrate=3002.7kbits/frame= 1783 fps= 19 q=29.0 size=   21787kB time=00:00:59.51 bitrate=2999.0kbits/frame= 1793 fps= 19 q=29.0 size=   21902kB time=00:00:59.86 bitrate=2997.3kbits/[Parsed_concat_0 @ 0x7f6dc69b5ca0] EOF on in1:v0, 1 streams left in segment.
    
[Parsed_concat_0 @ 0x7f6dc69b5ca0] EOF on in1:a0, 0 streams left in segment.
    
[Parsed_concat_0 @ 0x7f6dc69b5ca0] Segment finished at pts=60135827
    
frame= 1805 fps= 19 q=29.0 size=   21990kB time=00:01:00.23 bitrate=2990.7kbits/frame= 1816 fps= 19 q=29.0 size=   22117kB time=00:01:00.60 bitrate=2989.6kbits/frame= 1830 fps= 19 q=29.0 size=   bitrate=3521.1kbits/frame= 2194 fps= 19 q=29.0 size=   31450kB time=00:01:13.21 bitrate=3519.0kbits/frame= 2213 fps= 19 q=29.0 size=   31591kB time=00:01:13.83 bitrate=3504.9kbits/[Parsed_concat_0 @ 0x7f6dc69b5ca0] EOF on in2:v0, 1 streams left in segment.
    
[Parsed_concat_0 @ 0x7f6dc69b5ca0] EOF on in2:a0, 0 streams left in segment.
    
[Parsed_concat_0 @ 0x7f6dc69b5ca0] Segment finished at pts=74253559
    
No more output streams to write to, finishing.
    
frame= 2227 fps= 19 q=-1.0 Lsize=   32179kB time=00:01:14.25 bitrate=3549.9kbits/s speed=0.633x    
    
video:31198kB audio:901kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.247438%
    
Input file #0 (/var/www/Intro30.mp4):
    
  Input stream #0:0 (video): 87 packets read (1271526 bytes); 87 frames decoded; 
    
  Input stream #0:1 (audio): 126 packets read (773 bytes); 125 frames decoded (128000 samples); 
    
  Total: 213 packets (1272299 bytes) demuxed
    
Input file #1 (/var/www/temp/videoHD.mp4):
    
  Input stream #1:0 (video): 1717 packets read (21108999 bytes); 1717 frames decoded; 
    
  Input stream #1:1 (audio): 2464 packets read (918725 bytes); 2463 frames decoded (2522112 samples); 
    
  Total: 4181 packets (22027724 bytes) demuxed
    
Input file #2 (/var/www/Credits30.mp4):
    
  Input stream #2:0 (video): 423 packets read (10066322 bytes); 423 frames decoded; 
    
  Input stream #2:1 (audio): 609 packets read (3705 bytes); 608 frames decoded (622592 samples); 
    
  Total: 1032 packets (10070027 bytes) demuxed
    
Output file #0 (/var/www/temp/merged.mp4):
    
  Output stream #0:0 (video): 2227 frames encoded; 2227 packets muxed (31946574 bytes); 
    
  Output stream #0:1 (audio): 3198 frames encoded (3274582 samples); 3199 packets muxed (923102 bytes); 
    
  Total: 5426 packets (32869676 bytes) muxed
    
[libx264 @ 0x7f6dc62d1aa0] frame I:19    Avg QP:18.19  size:110490
    
[libx264 @ 0x7f6dc62d1aa0] frame P:851   Avg QP:21.97  size: 23670
    
[libx264 @ 0x7f6dc62d1aa0] frame B:1357  Avg QP:25.31  size:  7150
    
[libx264 @ 0x7f6dc62d1aa0] consecutive B-frames:  3.1% 44.8%  6.1% 46.0%
    
[libx264 @ 0x7f6dc62d1aa0] mb I  I16..4: 31.3% 59.2%  9.6%
    
[libx264 @ 0x7f6dc62d1aa0] mb P  I16..4:  4.5% 11.6%  0.7%  P16..4: 40.9%  8.2%  2.5%  0.0%  0.0%    skip:31.6%
    
[libx264 @ 0x7f6dc62d1aa0] mb B  I16..4:  0.5%  1.2%  0.2%  B16..8: 28.5%  2.0%  0.2%  direct: 1.0%  skip:66.3%  L0:42.2% L1:55.1% BI: 2.8%
    
[libx264 @ 0x7f6dc62d1aa0] 8x8 transform intra:67.4% inter:89.6%
    
[libx264 @ 0x7f6dc62d1aa0] coded y,uvDC,uvAC intra: 39.8% 43.5% 4.0% inter: 7.8% 12.4% 0.1%
    
[libx264 @ 0x7f6dc62d1aa0] i16 v,h,dc,p: 25% 33% 18% 24%
    
[libx264 @ 0x7f6dc62d1aa0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 24% 25%  3%  5%  5%  6%  4%  5%
    
[libx264 @ 0x7f6dc62d1aa0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 30% 14%  5%  6%  5%  6%  4%  7%
    
[libx264 @ 0x7f6dc62d1aa0] i8c dc,h,v,p: 58% 20% 17%  4%
    
[libx264 @ 0x7f6dc62d1aa0] Weighted P-Frames: Y:0.8% UV:0.2%
    
[libx264 @ 0x7f6dc62d1aa0] ref P L0: 73.9% 12.2% 11.3%  2.7%  0.0%
    
[libx264 @ 0x7f6dc62d1aa0] ref B L0: 92.1%  6.8%  1.1%
    
[libx264 @ 0x7f6dc62d1aa0] ref B L1: 98.4%  1.6%
    
[libx264 @ 0x7f6dc62d1aa0] kb/s:3442.75
    
[aac @ 0x7f6dc62dd100] Qavg: 18520.436

    Some lines removed to keep under the line limit.

    Here is the python method I use to execute the ffmpeg lines.

    def ffmpeg(args):
    
    err = None
    
    command = [
    
        ffmpegcmd, '-y',
    
        '-loglevel', loglevel
    
    ] + args
    
    ffmpeg = subprocess.Popen(command, stderr=subprocess.PIPE ,stdout=subprocess.PIPE, universal_newlines=True)
    
    while err == None:
    
        out, err = ffmpeg.communicate()
    
        time.sleep(1)
    
    if err:
    
        print(" ".join(command))
    
        raise Exception(err)

    *Edit

    When ever I need to use a command that requires single quotes around the arguments i.e. '[0:0] [0:1] [1:0] [1:1] [2:0] [2:1] concat=n=3:v=1:a=1 [v] [a]' the above function wouldn’t work. So I made another function for those case which deals with the command as a string. Here is is.

    def ffmpegStr(args):
    
    err = None
    
    command = [
    
        ffmpegcmd, '-y',
    
        '-loglevel', loglevel
    
    ] + args
    
    commandStr = " ".join(command)
    
    print(commandStr)
    
    ffmpeg = subprocess.Popen(shlex.split(commandStr), stderr=subprocess.PIPE ,stdout=subprocess.PIPE, universal_newlines=True)
    
    while err == None:
    
        out, err = ffmpeg.communicate()
    
        time.sleep(1)
    
    if err:
    
        print(commandStr)
    
        raise Exception(err)

    As you can see I’ve added a print to see what is being handed to the subprocess.Popen function. This is the method that is being used when the ffmpeg command does not run as expected.

    I use ffmpegcmd as a variable so that I can change the ffmpeg version if needed in both functions with 1 change.

    The args is just the list of arguments specific to what I want ffmpeg to do.

    I also like to have the option of changing the loglevel in both functions with 1 line and so use a variable for this.

    *End Edit

    Why the difference in how it is handled ?

    Cheers,

    Stu

  • FFmpeg/DASH : duration or timestamp out of range for mov/mp4 format

    6 février, par mike

    I'm trying to convert a aac stream to dash. The issue is that I get a lot of errors as below(though it seems to segment it into multiple files but I get errors on the player too). The question is why do I get these errors and how can I fix it ? If I simply convert "copy" it into to a single mp4 file it works without error.

    



        ffmpeg -i  "a.mkv" -y -map  0:1 -c:0 copy -min_seg_duration 1000000 
-use_timeline 1 -use_template 1 -init_seg_name init.mp4s 
-media_seg_name  "\$Number\$.mp4s" -adaptation_sets "id=1,streams=0"
-remove_at_exit 0  -f dash -dash 1 
"out/stream.mpd" -loglevel error 


    



    Output

    



    [mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 40475608 is out of range for mov/mp4 format
[mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 40764376 is out of range for mov/mp4 format
[mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 40860664 is out of range for mov/mp4 format
[mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 41149432 is out of range for mov/mp4 format
[mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 41390056 is out of range for mov/mp4 format
[mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 41823208 is out of range for mov/mp4 format


    



    Copy to a single MP4 works just fine
 ffmpeg -i "a.mkv" -y -map 0:1 -c:0 copy -f mp4 -dash 1 "out/out.mp4" -loglevel error

    



    Probe

    



    ffprobe a.mkv
ffprobe version 3.4 Copyright (c) 2007-2017 the FFmpeg developers
  built with Apple LLVM version 9.0.0 (clang-900.0.37)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.4 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Input #0, matroska,webm, from 'a.mkv':
  Metadata:
    encoder         : libebml v1.3.1 + libmatroska v1.4.2
    creation_time   : 2017-03-11T02:56:50.000000Z
  Duration: 02:12:52.39, start: 0.000000, bitrate: 740 kb/s
    Chapter #0:0: start 0.000000, end 520.270000
    Metadata:
      title           : 00:00:00.000
    Chapter #0:1: start 520.270000, end 1135.718000
    Metadata:
      title           : 00:08:40.270
    Chapter #0:2: start 1135.718000, end 1703.660000
    Metadata:
      title           : 00:18:55.718
    Chapter #0:3: start 1703.660000, end 2314.187000
    Metadata:
      title           : 00:28:23.660
    Chapter #0:4: start 2314.187000, end 2888.594000
    Metadata:
      title           : 00:38:34.187
    Chapter #0:5: start 2888.594000, end 3499.246000
    Metadata:
      title           : 00:48:08.594
    Chapter #0:6: start 3499.246000, end 4154.692000
    Metadata:
      title           : 00:58:19.246
    Chapter #0:7: start 4154.692000, end 4646.392000
    Metadata:
      title           : 01:09:14.692
    Chapter #0:8: start 4646.392000, end 5373.660000
    Metadata:
      title           : 01:17:26.392
    Chapter #0:9: start 5373.660000, end 5882.085000
    Metadata:
      title           : 01:29:33.660
    Chapter #0:10: start 5882.085000, end 6627.871000
    Metadata:
      title           : 01:38:02.085
    Chapter #0:11: start 6627.871000, end 7144.471000
    Metadata:
      title           : 01:50:27.871
    Chapter #0:12: start 7144.471000, end 7451.944000
    Metadata:
      title           : 01:59:04.471
    Chapter #0:13: start 7451.944000, end 7972.394000
    Metadata:
      title           : 02:04:11.944
    Stream #0:0(eng): Video: h264 (High), yuv420p(tv, bt709/unknown/unknown, progressive), 720x300 [SAR 1:1 DAR 12:5], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
    Metadata:
      title           : X264
      BPS             : 623765
      BPS-eng         : 623765
      DURATION        : 02:12:52.311000000
      DURATION-eng    : 02:12:52.311000000
      NUMBER_OF_FRAMES: 191144
      NUMBER_OF_FRAMES-eng: 191144
      NUMBER_OF_BYTES : 621606403
      NUMBER_OF_BYTES-eng: 621606403
      _STATISTICS_WRITING_APP: mkvmerge v8.3.0 ('Over the Horizon') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v8.3.0 ('Over the Horizon') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2017-03-11 02:56:50
      _STATISTICS_WRITING_DATE_UTC-eng: 2017-03-11 02:56:50
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:1(eng): Audio: aac (LC), 48000 Hz, stereo, fltp (default)
    Metadata:
      BPS             : 114797
      BPS-eng         : 114797
      DURATION        : 02:12:52.394000000
      DURATION-eng    : 02:12:52.394000000
      NUMBER_OF_FRAMES: 373706
      NUMBER_OF_FRAMES-eng: 373706
      NUMBER_OF_BYTES : 114401387
      NUMBER_OF_BYTES-eng: 114401387
      _STATISTICS_WRITING_APP: mkvmerge v8.3.0 ('Over the Horizon') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v8.3.0 ('Over the Horizon') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2017-03-11 02:56:50
      _STATISTICS_WRITING_DATE_UTC-eng: 2017-03-11 02:56:50
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES


    



    Shaka debug

    



    Assertion failed: This should be an update of the last segment in a period
shaka.media.SegmentIndex.merge @ segment_index.js:153
shaka.dash.SegmentTemplate.createStream @ segment_template.js:82
shaka.dash.DashParser.parseRepresentation_ @ dash_parser.js:1080
shaka.dash.DashParser.parseAdaptationSet_ @ dash_parser.js:978
shaka.dash.DashParser.parsePeriod_ @ dash_parser.js:722
shaka.dash.DashParser.parsePeriods_ @ dash_parser.js:626
shaka.dash.DashParser.processManifest_ @ dash_parser.js:520
(anonymous) @ dash_parser.js:431
Promise resolved (async)
shaka.dash.DashParser.parseManifest_ @ dash_parser.js:430
(anonymous) @ dash_parser.js:397
Promise resolved (async)
shaka.dash.DashParser.requestManifest_ @ dash_parser.js:390
shaka.dash.DashParser.onUpdate_ @ dash_parser.js:1161
setTimeout (async)
shaka.dash.DashParser.setUpdateTimer_ @ dash_parser.js:1209
(anonymous) @ dash_parser.js:331
Promise resolved (async)
shaka.dash.DashParser.start @ dash_parser.js:329
(anonymous) @ player.js:555
Promise resolved (async)
shaka.util.CancelableChain.then @ cancelable_chain.js:72
shaka.Player.load @ player.js:499
initPlayer @ ?x=149&y=88&q=http%3A%2F%2Flocalhost%3A8080%2Fmeta%2F%3FbucketID%3D%2FVolumes%2FTV%2FFa%26channelID%3D%2FVolumes%2FTV%26containerID%3D%2FUsers%2F%2Fbrev%%2FL1ZvbHVtZXMvVFYvRmFudGFzdGljLkJlYXN0cy5hbmQuV2hlcmUudG8uRmluZC5UaGVtLjIwMTYuQkRSaXAueDI2NC1TUEFSS1MvYS5ta3Y%2F97M4TS6IqnQ.mpd:392
463segment_index.js:145 Refusing to rewrite original references on update!
shaka.media.SegmentIndex.merge @ segment_index.js:145
shaka.dash.SegmentTemplate.createStream @ segment_template.js:82
shaka.dash.DashParser.parseRepresentation_ @ dash_parser.js:1080
shaka.dash.DashParser.parseAdaptationSet_ @ dash_parser.js:978
shaka.dash.DashParser.parsePeriod_ @ dash_parser.js:722
shaka.dash.DashParser.parsePeriods_ @ dash_parser.js:626
shaka.dash.DashParser.processManifest_ @ dash_parser.js:520
(anonymous) @ dash_parser.js:431
Promise resolved (async)
shaka.dash.DashParser.parseManifest_ @ dash_parser.js:430
(anonymous) @ dash_parser.js:397
Promise resolved (async)
shaka.dash.DashParser.requestManifest_ @ dash_parser.js:390
shaka.dash.DashParser.onUpdate_ @ dash_parser.js:1161
setTimeout (async)
shaka.dash.DashParser.setUpdateTimer_ @ dash_parser.js:1209
(anonymous) @ dash_parser.js:331
Promise resolved (async)
shaka.dash.DashParser.start @ dash_parser.js:329
(anonymous) @ player.js:555
Promise resolved (async)
shaka.util.CancelableChain.then @ cancelable_chain.js:72
shaka.Player.load @ player.js:499
initPlayer @ ?x=149&y=88&q=http%3A%2F%2Flocalhost%3A8080%2Fmeta%2F%3FbucketID%3D%2FVolumes%2FTV%2FFa%26channelID%3D%2FVolumes%2FTV%26containerID%3D%2FUsers%2F%2Fbrev%%2FL1ZvbHVtZXMvVFYvRmFudGFzdGljLkJlYXN0cy5hbmQuV2hlcmUudG8uRmluZC5UaGVtLjIwMTYuQkRSaXAueDI2NC1TUEFSS1MvYS5ta3Y%2F97M4TS6IqnQ.mpd:392


    


  • Dash timestamp : 41390056 is out of range for mov/mp4 format

    26 octobre 2017, par mike

    I’m trying to convert a aac stream to dash. The issue is that I get a lot of errors as below(though it seems to segment it into multiple files but I get errors on the player too). The question is why do I get these errors and how can I fix it ? If I simply convert "copy" it into to a single mp4 file it works without error.

        ffmpeg -i  "a.mkv" -y -map  0:1 -c:0 copy -min_seg_duration 1000000 
    
-use_timeline 1 -use_template 1 -init_seg_name init.mp4s 
    
-media_seg_name  "\$Number\$.mp4s" -adaptation_sets "id=1,streams=0"
    
-remove_at_exit 0  -f dash -dash 1 
    
"out/stream.mpd" -loglevel error

    Output

    [mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 40475608 is out of range for mov/mp4 format
    
[mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 40764376 is out of range for mov/mp4 format
    
[mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 40860664 is out of range for mov/mp4 format
    
[mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 41149432 is out of range for mov/mp4 format
    
[mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 41390056 is out of range for mov/mp4 format
    
[mp4 @ 0x7fbb70819600] Application provided duration: -32 / timestamp: 41823208 is out of range for mov/mp4 format

    Copy to a single MP4 works just fine
    ffmpeg -i "a.mkv" -y -map 0:1 -c:0 copy -f mp4 -dash 1 "out/out.mp4" -loglevel error

    Probe

    ffprobe a.mkv
    
ffprobe version 3.4 Copyright (c) 2007-2017 the FFmpeg developers
    
  built with Apple LLVM version 9.0.0 (clang-900.0.37)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.4 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
    
  libavutil      55. 78.100 / 55. 78.100
    
  libavcodec     57.107.100 / 57.107.100
    
  libavformat    57. 83.100 / 57. 83.100
    
  libavdevice    57. 10.100 / 57. 10.100
    
  libavfilter     6.107.100 /  6.107.100
    
  libavresample   3.  7.  0 /  3.  7.  0
    
  libswscale      4.  8.100 /  4.  8.100
    
  libswresample   2.  9.100 /  2.  9.100
    
  libpostproc    54.  7.100 / 54.  7.100
    
Input #0, matroska,webm, from 'a.mkv':
    
  Metadata:
    
    encoder         : libebml v1.3.1 + libmatroska v1.4.2
    
    creation_time   : 2017-03-11T02:56:50.000000Z
    
  Duration: 02:12:52.39, start: 0.000000, bitrate: 740 kb/s
    
    Chapter #0:0: start 0.000000, end 520.270000
    
    Metadata:
    
      title           : 00:00:00.000
    
    Chapter #0:1: start 520.270000, end 1135.718000
    
    Metadata:
    
      title           : 00:08:40.270
    
    Chapter #0:2: start 1135.718000, end 1703.660000
    
    Metadata:
    
      title           : 00:18:55.718
    
    Chapter #0:3: start 1703.660000, end 2314.187000
    
    Metadata:
    
      title           : 00:28:23.660
    
    Chapter #0:4: start 2314.187000, end 2888.594000
    
    Metadata:
    
      title           : 00:38:34.187
    
    Chapter #0:5: start 2888.594000, end 3499.246000
    
    Metadata:
    
      title           : 00:48:08.594
    
    Chapter #0:6: start 3499.246000, end 4154.692000
    
    Metadata:
    
      title           : 00:58:19.246
    
    Chapter #0:7: start 4154.692000, end 4646.392000
    
    Metadata:
    
      title           : 01:09:14.692
    
    Chapter #0:8: start 4646.392000, end 5373.660000
    
    Metadata:
    
      title           : 01:17:26.392
    
    Chapter #0:9: start 5373.660000, end 5882.085000
    
    Metadata:
    
      title           : 01:29:33.660
    
    Chapter #0:10: start 5882.085000, end 6627.871000
    
    Metadata:
    
      title           : 01:38:02.085
    
    Chapter #0:11: start 6627.871000, end 7144.471000
    
    Metadata:
    
      title           : 01:50:27.871
    
    Chapter #0:12: start 7144.471000, end 7451.944000
    
    Metadata:
    
      title           : 01:59:04.471
    
    Chapter #0:13: start 7451.944000, end 7972.394000
    
    Metadata:
    
      title           : 02:04:11.944
    
    Stream #0:0(eng): Video: h264 (High), yuv420p(tv, bt709/unknown/unknown, progressive), 720x300 [SAR 1:1 DAR 12:5], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
    
    Metadata:
    
      title           : X264
    
      BPS             : 623765
    
      BPS-eng         : 623765
    
      DURATION        : 02:12:52.311000000
    
      DURATION-eng    : 02:12:52.311000000
    
      NUMBER_OF_FRAMES: 191144
    
      NUMBER_OF_FRAMES-eng: 191144
    
      NUMBER_OF_BYTES : 621606403
    
      NUMBER_OF_BYTES-eng: 621606403
    
      _STATISTICS_WRITING_APP: mkvmerge v8.3.0 ('Over the Horizon') 64bit
    
      _STATISTICS_WRITING_APP-eng: mkvmerge v8.3.0 ('Over the Horizon') 64bit
    
      _STATISTICS_WRITING_DATE_UTC: 2017-03-11 02:56:50
    
      _STATISTICS_WRITING_DATE_UTC-eng: 2017-03-11 02:56:50
    
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    
    Stream #0:1(eng): Audio: aac (LC), 48000 Hz, stereo, fltp (default)
    
    Metadata:
    
      BPS             : 114797
    
      BPS-eng         : 114797
    
      DURATION        : 02:12:52.394000000
    
      DURATION-eng    : 02:12:52.394000000
    
      NUMBER_OF_FRAMES: 373706
    
      NUMBER_OF_FRAMES-eng: 373706
    
      NUMBER_OF_BYTES : 114401387
    
      NUMBER_OF_BYTES-eng: 114401387
    
      _STATISTICS_WRITING_APP: mkvmerge v8.3.0 ('Over the Horizon') 64bit
    
      _STATISTICS_WRITING_APP-eng: mkvmerge v8.3.0 ('Over the Horizon') 64bit
    
      _STATISTICS_WRITING_DATE_UTC: 2017-03-11 02:56:50
    
      _STATISTICS_WRITING_DATE_UTC-eng: 2017-03-11 02:56:50
    
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES

    Shaka debug

    Assertion failed: This should be an update of the last segment in a period
    
shaka.media.SegmentIndex.merge @ segment_index.js:153
    
shaka.dash.SegmentTemplate.createStream @ segment_template.js:82
    
shaka.dash.DashParser.parseRepresentation_ @ dash_parser.js:1080
    
shaka.dash.DashParser.parseAdaptationSet_ @ dash_parser.js:978
    
shaka.dash.DashParser.parsePeriod_ @ dash_parser.js:722
    
shaka.dash.DashParser.parsePeriods_ @ dash_parser.js:626
    
shaka.dash.DashParser.processManifest_ @ dash_parser.js:520
    
(anonymous) @ dash_parser.js:431
    
Promise resolved (async)
    
shaka.dash.DashParser.parseManifest_ @ dash_parser.js:430
    
(anonymous) @ dash_parser.js:397
    
Promise resolved (async)
    
shaka.dash.DashParser.requestManifest_ @ dash_parser.js:390
    
shaka.dash.DashParser.onUpdate_ @ dash_parser.js:1161
    
setTimeout (async)
    
shaka.dash.DashParser.setUpdateTimer_ @ dash_parser.js:1209
    
(anonymous) @ dash_parser.js:331
    
Promise resolved (async)
    
shaka.dash.DashParser.start @ dash_parser.js:329
    
(anonymous) @ player.js:555
    
Promise resolved (async)
    
shaka.util.CancelableChain.then @ cancelable_chain.js:72
    
shaka.Player.load @ player.js:499
    
initPlayer @ ?x=149&y=88&q=http%3A%2F%2Flocalhost%3A8080%2Fmeta%2F%3FbucketID%3D%2FVolumes%2FTV%2FFa%26channelID%3D%2FVolumes%2FTV%26containerID%3D%2FUsers%2F%2Fbrev%%2FL1ZvbHVtZXMvVFYvRmFudGFzdGljLkJlYXN0cy5hbmQuV2hlcmUudG8uRmluZC5UaGVtLjIwMTYuQkRSaXAueDI2NC1TUEFSS1MvYS5ta3Y%2F97M4TS6IqnQ.mpd:392
    
463segment_index.js:145 Refusing to rewrite original references on update!
    
shaka.media.SegmentIndex.merge @ segment_index.js:145
    
shaka.dash.SegmentTemplate.createStream @ segment_template.js:82
    
shaka.dash.DashParser.parseRepresentation_ @ dash_parser.js:1080
    
shaka.dash.DashParser.parseAdaptationSet_ @ dash_parser.js:978
    
shaka.dash.DashParser.parsePeriod_ @ dash_parser.js:722
    
shaka.dash.DashParser.parsePeriods_ @ dash_parser.js:626
    
shaka.dash.DashParser.processManifest_ @ dash_parser.js:520
    
(anonymous) @ dash_parser.js:431
    
Promise resolved (async)
    
shaka.dash.DashParser.parseManifest_ @ dash_parser.js:430
    
(anonymous) @ dash_parser.js:397
    
Promise resolved (async)
    
shaka.dash.DashParser.requestManifest_ @ dash_parser.js:390
    
shaka.dash.DashParser.onUpdate_ @ dash_parser.js:1161
    
setTimeout (async)
    
shaka.dash.DashParser.setUpdateTimer_ @ dash_parser.js:1209
    
(anonymous) @ dash_parser.js:331
    
Promise resolved (async)
    
shaka.dash.DashParser.start @ dash_parser.js:329
    
(anonymous) @ player.js:555
    
Promise resolved (async)
    
shaka.util.CancelableChain.then @ cancelable_chain.js:72
    
shaka.Player.load @ player.js:499
    
initPlayer @ ?x=149&y=88&q=http%3A%2F%2Flocalhost%3A8080%2Fmeta%2F%3FbucketID%3D%2FVolumes%2FTV%2FFa%26channelID%3D%2FVolumes%2FTV%26containerID%3D%2FUsers%2F%2Fbrev%%2FL1ZvbHVtZXMvVFYvRmFudGFzdGljLkJlYXN0cy5hbmQuV2hlcmUudG8uRmluZC5UaGVtLjIwMTYuQkRSaXAueDI2NC1TUEFSS1MvYS5ta3Y%2F97M4TS6IqnQ.mpd:392

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