[FFmpeg-trac] #7200(avcodec:open): Assertion failure with h264_metadata bsf (was: FFmpeg crash when use cbs to remove AUD)

[FFmpeg]

#7200: Assertion failure with h264_metadata bsf
------------------------------------+-----------------------------------
             Reporter:  mypopy      |                    Owner:
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  avcodec
              Version:  git-master  |               Resolution:
             Keywords:              |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
------------------------------------+-----------------------------------
Changes (by jamrial):

 * status:  new => open
 * reproduced:  0 => 1


Comment:

 No need to remove AUD NALus, running the file through the h264_metadata
 bsf is enough.

 {{{
 $ ./ffmpeg -i test.ts -c:v copy -bsf:v h264_metadata -f mp4 NUL
 ffmpeg version N-91064-g89a04472a7 Copyright (c) 2000-2018 the FFmpeg
 developers
   built with gcc 7.3.0 (Rev2, Built by MSYS2 project)
   configuration: --enable-gpl --enable-nonfree --enable-opencl --enable-
 libaom --enable-libopenjpeg --enable-libzimg --enable-libfdk-aac --enable-
 libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-
 libx264 --enable-libx265 --enable-libwebp --cpu=haswell --extra-
 cflags='-D_WIN32_WINNT=0x0602' --cc='ccache gcc' --x86asmexe=yasm
 --samples=../samples --prefix=/mingw64
   libavutil      56. 18.102 / 56. 18.102
   libavcodec     58. 19.101 / 58. 19.101
   libavformat    58. 13.102 / 58. 13.102
   libavdevice    58.  4.100 / 58.  4.100
   libavfilter     7. 22.100 /  7. 22.100
   libswscale      5.  2.100 /  5.  2.100
   libswresample   3.  2.100 /  3.  2.100
   libpostproc    55.  2.100 / 55.  2.100
 Input #0, mpegts, from 'test.ts':
   Duration: 00:00:08.84, start: 1.400000, bitrate: 2136 kb/s
   Program 1
     Metadata:
       service_name    : Service01
       service_provider: FFmpeg
     Stream #0:0[0x100]: Video: h264 (Baseline) ([27][0][0][0] / 0x001B),
 yuv420p(tv, bt470bg/bt470bg/smpte170m, progressive), 1280x720, 23.98 tbr,
 90k tbn, 180k tbc
     Stream #0:1[0x101]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 44100
 Hz, mono, fltp, 98 kb/s
 File 'NUL' already exists. Overwrite ? [y/N] y
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
   Stream #0:1 -> #0:1 (aac (native) -> aac (native))
 Press [q] to stop, [?] for help
 Assertion size > 0 failed at K:/ffmpeg/src/libavcodec/cbs_h2645.c:526

 This application has requested the Runtime to terminate it in an unusual
 way.
 Please contact the application's support team for more information.
 }}}

 Did not check if this is a regression or not.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7200#comment:2>
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