[FFmpeg-trac] #6854(undetermined:new): filter_complex hangs on broken input

[FFmpeg]

#6854: filter_complex hangs on broken input
-------------------------------------+-------------------------------------
               Reporter:  cehoyos    |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  important  |              Component:
                Version:  git-       |  undetermined
  master                             |               Keywords:  deadlock
             Blocked By:             |  regression
Reproduced by developer:  0          |               Blocking:
                                     |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 http://ffmpeg.org/pipermail/ffmpeg-user/2017-November/037955.html
 Regression since 76e13bdeaabc7ec49322b3a118dc4805153e0401
 {{{
 $ ffmpeg -i fate-suite/lena.pnm -i broken.pgm -filter_complex overlay -f
 null -
 ffmpeg version N-89191-g152902f Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 6.3.0 (GCC)
   configuration: --enable-gpl
   libavutil      56.  0.100 / 56.  0.100
   libavcodec     58.  3.105 / 58.  3.105
   libavformat    58.  2.102 / 58.  2.102
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  2.100 /  7.  2.100
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, ppm_pipe, from 'fate-suite/lena.pnm':
   Duration: N/A, bitrate: N/A
     Stream #0:0: Video: ppm, rgb24, 256x256, 25 tbr, 25 tbn, 25 tbc
 Input #1, pgm_pipe, from 'broken.pgm':
   Duration: N/A, bitrate: N/A
     Stream #1:0: Video: pgm, gray, 256x256, 25 tbr, 25 tbn, 25 tbc
 Stream mapping:
   Stream #0:0 (ppm) -> overlay:main
   Stream #1:0 (pgm) -> overlay:overlay
   overlay -> Stream #0:0 (wrapped_avframe)
 Press [q] to stop, [?] for help
 Error while decoding stream #1:0: Invalid data found when processing input
 frame=    0 fps=0.0 q=0.0 size=N/A time=-577014:32:22.77 bitrate=N/A
 speed=N/A
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/6854>
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