[FFmpeg-trac] #2873(FFmpeg:new): ffmpeg concat demuxer fails: mpeg files with different audio and video stream order

[FFmpeg]

#2873: ffmpeg concat demuxer fails: mpeg files with different audio and video
stream order
-------------------------------------+-------------------------------------
             Reporter:  kadmandux    |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  FFmpeg       |                  Version:
             Keywords:  concat       |  unspecified
  demuxer                            |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 I've 2 MPEG files with different order in audio and video stream, which I
 want to join:


 {{{
 ffprobe MU2000134b.mpg
 Input #0, mpeg, from 'MU2000134b.mpg':
   Duration: 00:00:40.14, start: 0.500000, bitrate: 7713 kb/s
     Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [SAR
 64:45 DAR 16:9], max. 9100 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
     Stream #0:1[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 256 kb/s

 ffprobe MU2000135b.mpg
 Input #0, mpeg, from 'MU2000135b.mpg':
   Duration: 00:02:09.82, start: 0.500000, bitrate: 7583 kb/s
     Stream #0:0[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 256 kb/s
     Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [SAR
 64:45 DAR 16:9], max. 9100 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
 }}}

 How to reproduce:
 {{{
 % ffmpeg -f concat -i lista.txt -c:a copy -c:v copy video.mpg
 ffmpeg version N-55393-g3b2e99f Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Aug  8 2013 21:32:57 with gcc 4.7.3 (GCC)
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-av
 isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls
 --enab
 le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-
 libfreetyp
 e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --ena
 ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
 --enable-l
 ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr
 --enable-libsp
 eex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-
 libvo-
 amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-
 libxavs --
 enable-libxvid --enable-zlib
   libavutil      52. 41.100 / 52. 41.100
   libavcodec     55. 24.100 / 55. 24.100
   libavformat    55. 13.102 / 55. 13.102
   libavdevice    55.  3.100 / 55.  3.100
   libavfilter     3. 82.100 /  3. 82.100
   libswscale      2.  4.100 /  2.  4.100
   libswresample   0. 17.103 /  0. 17.103
   libpostproc    52.  3.100 / 52.  3.100
 [concat @ 026eb160] Estimating duration from bitrate, this may be
 inaccurate
 Input #0, concat, from 'lista.txt':
   Duration: 00:00:00.00, start: 0.000000, bitrate: 256 kb/s
     Stream #0:0: Video: mpeg2video (Main), yuv420p, 720x576 [SAR 64:45 DAR
 16:9]
 , max. 9100 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
     Stream #0:1: Audio: ac3, 48000 Hz, stereo, fltp, 256 kb/s
 Output #0, mpeg, to 'video.mpg':
   Metadata:
     encoder         : Lavf55.13.102
     Stream #0:0: Video: mpeg2video, yuv420p, 720x576 [SAR 64:45 DAR 16:9],
 q=2-3
 1, max. 9100 kb/s, 25 fps, 90k tbn, 25 tbc
     Stream #0:1: Audio: ac3, 48000 Hz, stereo, 256 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
   Stream #0:1 -> #0:1 (copy)
 Press [q] to stop, [?] for help
 frame=  368 fps=0.0 q=-1.0 size=   14306kB time=00:00:14.90
 bitrate=7863.3kbits/
 frame=  718 fps=717 q=-1.0 size=   27334kB time=00:00:28.90
 bitrate=7747.0kbits/
 frame=  915 fps=608 q=-1.0 size=   34646kB time=00:00:36.78
 bitrate=7715.9kbits/
 [mpeg @ 03a9ba40] buffer underflow i=1 bufi=3763 size=41205
 [mpeg @ 03a9ba40] packet too large, ignoring buffer limits to mux it
 [mpeg @ 03a9ba40] buffer underflow i=1 bufi=3763 size=41205
 [mpeg @ 03a9ba40] buffer underflow i=1 bufi=5788 size=41205
 [mpeg @ 03a9ba40] packet too large, ignoring buffer limits to mux it
 [mpeg @ 03a9ba40] buffer underflow i=1 bufi=5788 size=41205
 [mpeg @ 03a9ba40] buffer underflow i=1 bufi=7825 size=41205
 [mpeg @ 03a9ba40] packet too large, ignoring buffer limits to mux it
 [mpeg @ 03a9ba40] buffer underflow i=1 bufi=7825 size=41205
 [mpeg @ 03a9ba40] buffer underflow i=1 bufi=9862 size=41205
 [mpeg @ 03a9ba40] packet too large, ignoring buffer limits to mux it
 [mpeg @ 03a9ba40] buffer underflow i=1 bufi=9862 size=41205
 [mpeg @ 03a9ba40] buffer underflow i=1 bufi=11899 size=41205

 }}}

 The problem doesn't appears if, before the join operation, you reorder the
 streams (with "-map" option) to have the same order in both files.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2873>
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