[FFmpeg-trac] #7612(avcodec:new): Crash of FFMPEG webp decoder

[FFmpeg]

#7612: Crash of FFMPEG webp decoder
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             Reporter:               |                     Type:  defect
  alexandre.vrubel                   |                 Priority:  normal
               Status:  new          |                  Version:
            Component:  avcodec      |  unspecified
             Keywords:  webp         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 Summary of the bug:
 When opening some WEBP files, the multithreaded webp decoder causes a
 crash on Windows version of ffmpeg, and explicitly asks for a bug report.
 linux version crashes as well.

 How to reproduce:
 ffmpeg -i crash_reading.webp output.jpg

 ffmpeg version built on 20181201

 The log and source image that causes the bug are added to this ticket.

 I managed to circumvent the bug using the "-threads 1" option. Therefore,
 it appears that the bug is caused by a multithreading issue inside the
 webp decoder

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Ticket URL: <https://trac.ffmpeg.org/ticket/7612>
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