[FFmpeg-trac] #2873(avformat:reopened): 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    |                    Owner:
                 Type:  enhancement  |                   Status:  reopened
             Priority:  wish         |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  concat       |               Blocked By:
  demuxer                            |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by kadmandux):

 * status:  closed => reopened
 * resolution:  fixed =>


Comment:

 Sorry, but I've just tested this now and the problem persists today.

 Have a look at stream order shown for this two files:


 {{{
 D:\>ffprobe -i M2U00826.MPG
 ffprobe version N-91536-geb94ec3257 Copyright (c) 2007-2018 the FFmpeg
 developers
   built with gcc 7.3.1 (GCC) 20180722
   configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
 bzlib --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. 18.102 / 56. 18.102
   libavcodec     58. 22.100 / 58. 22.100
   libavformat    58. 17.101 / 58. 17.101
   libavdevice    58.  4.101 / 58.  4.101
   libavfilter     7. 26.100 /  7. 26.100
   libswscale      5.  2.100 /  5.  2.100
   libswresample   3.  2.100 /  3.  2.100
   libpostproc    55.  2.100 / 55.  2.100
 Input #0, mpeg, from 'pruebas\M2U00826.MPG':
   Duration: 00:00:12.96, start: 0.226767, bitrate: 6674 kb/s
     Stream #0:0[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 256 kb/s
     Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top first),
 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc

 D:\>ffprobe -i M2U00827.MPG
 ffprobe version N-91536-geb94ec3257 Copyright (c) 2007-2018 the FFmpeg
 developers
   built with gcc 7.3.1 (GCC) 20180722
   configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
 bzlib --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. 18.102 / 56. 18.102
   libavcodec     58. 22.100 / 58. 22.100
   libavformat    58. 17.101 / 58. 17.101
   libavdevice    58.  4.101 / 58.  4.101
   libavfilter     7. 26.100 /  7. 26.100
   libswscale      5.  2.100 /  5.  2.100
   libswresample   3.  2.100 /  3.  2.100
   libpostproc    55.  2.100 / 55.  2.100
 Input #0, mpeg, from 'pruebas\M2U00827.MPG':
   Duration: 00:02:42.24, start: 0.098722, bitrate: 6319 kb/s
     Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top first),
 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
     Stream #0:1[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 256 kb/s
 }}}

 Both files are coming from the same VideoCam, both are unedited and when I
 try to concat them with ffmepg, I get the same errors reported some years
 ago.

 What was the fix applied by Nicolas in 26dea773?

 Thanks

--
Ticket URL: <https://trac.ffmpeg.org/ticket/2873#comment:8>
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