[FFmpeg-trac] #11324(ffmpeg:closed): Corrupted HEVC bitstream generated by extracting it from MP4 file

[FFmpeg]

#11324: Corrupted HEVC bitstream generated by extracting it from MP4 file
-------------------------------------+-------------------------------------
             Reporter:  Diego de     |                    Owner:  (none)
  Souza                              |
                 Type:  defect       |                   Status:  closed
             Priority:  important    |                Component:  ffmpeg
              Version:  git-master   |               Resolution:  invalid
             Keywords:  mp4 atom     |               Blocked By:
  dtsd sps pps hevc                  |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by Diego de Souza):

 * resolution:   => invalid
 * status:  new => closed


Old description:

> Summary of the bug:
>
> When FFmepg is demuxing MP4 where the STSD information does not match the
> bitstream PPS/SPS information a corrupted bitstream is generated when
> trying to extract the video bitstream.
>
> I assume the demuxer is passing the PPS/SPS from the MP4 container
> instead of the HEVC bitstream. Perhaps it is passing the PPS/SPS of the
> HEVC before the one from the STSD.
>
> Setup:
>
> Ubuntu 24.04
> FFmpeg 6.1.1
>
> Video file: https://streams.videolan.org/ffmpeg/incoming/11158/h265.mp4
>
> How to reproduce:
> {{{
>         % ffmpeg -i h265.mp4 -c:v copy h265.hevc
> (CRASH) % ffmpeg -i h265.hevc -f null -
>
> ffmpeg version 6.1.1-3ubuntu5 Copyright (c) 2000-2023 the FFmpeg
> developers
>   built with gcc 13 (Ubuntu 13.2.0-23ubuntu3)
>   configuration: --prefix=/usr --extra-version=3ubuntu5
> --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu
> --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl
> --disable-stripping --disable-omx --enable-gnutls --enable-libaom
> --enable-libass --enable-libbs2b --enable-libcaca --enable-libcdio
> --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-
> libfontconfig --enable-libfreetype --enable-libfribidi --enable-
> libglslang --enable-libgme --enable-libgsm --enable-libharfbuzz --enable-
> libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt
> --enable-libopus --enable-librubberband --enable-libshine --enable-
> libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
> libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx
> --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid
> --enable-libzimg --enable-openal --enable-opencl --enable-opengl
> --disable-sndio --enable-libvpl --disable-libmfx --enable-libdc1394
> --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r
> --enable-ladspa --enable-libbluray --enable-libjack --enable-libpulse
> --enable-librabbitmq --enable-librist --enable-libsrt --enable-libssh
> --enable-libsvtav1 --enable-libx264 --enable-libzmq --enable-libzvbi
> --enable-lv2 --enable-sdl2 --enable-libplacebo --enable-librav1e
> --enable-pocketsphinx --enable-librsvg --enable-libjxl --enable-shared
>   libavutil      58. 29.100 / 58. 29.100
>   libavcodec     60. 31.102 / 60. 31.102
>   libavformat    60. 16.100 / 60. 16.100
>   libavdevice    60.  3.100 / 60.  3.100
>   libavfilter     9. 12.100 /  9. 12.100
>   libswscale      7.  5.100 /  7.  5.100
>   libswresample   4. 12.100 /  4. 12.100
>   libpostproc    57.  3.100 / 57.  3.100
> }}}

New description:

 Summary of the bug:

 When FFmepg is demuxing MP4 where the STSD information does not match the
 bitstream PPS/SPS information a corrupted bitstream is generated when
 trying to extract the video bitstream.

 I assume the demuxer is passing the PPS/SPS from the MP4 container instead
 of the HEVC bitstream. Perhaps it is passing the PPS/SPS of the HEVC
 before the one from the STSD.

 Setup:

 Ubuntu 24.04
 FFmpeg 6.1.1

 How to reproduce:
 {{{
         % ffmpeg -i h265.mp4 -c:v copy h265.hevc
 (CRASH) % ffmpeg -i h265.hevc -f null -

 ffmpeg version 6.1.1-3ubuntu5 Copyright (c) 2000-2023 the FFmpeg
 developers
   built with gcc 13 (Ubuntu 13.2.0-23ubuntu3)
   configuration: --prefix=/usr --extra-version=3ubuntu5
 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu
 --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl
 --disable-stripping --disable-omx --enable-gnutls --enable-libaom
 --enable-libass --enable-libbs2b --enable-libcaca --enable-libcdio
 --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-
 libfontconfig --enable-libfreetype --enable-libfribidi --enable-libglslang
 --enable-libgme --enable-libgsm --enable-libharfbuzz --enable-libmp3lame
 --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-
 libopus --enable-librubberband --enable-libshine --enable-libsnappy
 --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame
 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp
 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg
 --enable-openal --enable-opencl --enable-opengl --disable-sndio --enable-
 libvpl --disable-libmfx --enable-libdc1394 --enable-libdrm --enable-
 libiec61883 --enable-chromaprint --enable-frei0r --enable-ladspa --enable-
 libbluray --enable-libjack --enable-libpulse --enable-librabbitmq
 --enable-librist --enable-libsrt --enable-libssh --enable-libsvtav1
 --enable-libx264 --enable-libzmq --enable-libzvbi --enable-lv2 --enable-
 sdl2 --enable-libplacebo --enable-librav1e --enable-pocketsphinx --enable-
 librsvg --enable-libjxl --enable-shared
   libavutil      58. 29.100 / 58. 29.100
   libavcodec     60. 31.102 / 60. 31.102
   libavformat    60. 16.100 / 60. 16.100
   libavdevice    60.  3.100 / 60.  3.100
   libavfilter     9. 12.100 /  9. 12.100
   libswscale      7.  5.100 /  7.  5.100
   libswresample   4. 12.100 /  4. 12.100
   libpostproc    57.  3.100 / 57.  3.100
 }}}

--
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11324#comment:5>
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