[FFmpeg-trac] #3077(avcodec:new): Corruption when decoding experimental hevc stream

FFmpeg trac at avcodec.org
Tue Aug 19 18:01:02 CEST 2014


#3077: Corruption when decoding experimental hevc stream
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             Reporter:  cehoyos     |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  minor       |                Component:  avcodec
              Version:  git-master  |               Resolution:
             Keywords:  hevc        |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by kurosu):

 profile 0, afaik, doesn't exist and means it could be anything, in
 particular on how to parse the bitstream. There are a few bits that can be
 parsed, but nothing that will say "we absolutely can't decode". It's not
 even a "patch welcome"/"missing feature" here.

 "CABAC_MAX_BIN : 100" in the log underlines this: it is not possible and
 means we've already had bitstream reading errors.

 We have something that looks vaguely watchable, and could maybe be fixed,
 but I can't see how anybody knowing hevc would want to go beyond what
 mraulet did.

 Maybe we can be clearer and say that the decoded output may be total
 garbage.

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Ticket URL: <https://trac.ffmpeg.org/ticket/3077#comment:10>
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