[FFmpeg-trac] #495(avcodec:closed): Crash on hidef WMV file

[FFmpeg]

#495: Crash on hidef WMV file
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             Reporter:  DonMoir     |                    Owner:
                 Type:  defect      |                   Status:  closed
             Priority:  important   |                Component:  avcodec
              Version:  git-master  |               Resolution:  fixed
             Keywords:  wmapro      |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
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Comment (by DonMoir):

 Does not crash for me anymore either. This file is marked as
 encrypted/protected and so useful in that sense.

 AVDictionaryEntry* pEntry = av_dict_get
 (pFormatCtx->metadata,"encryption",NULL,0);

 For the above file, pEntry will be valid.

 The other protected type is:

 AVDictionaryEntry* pEntry = av_dict_get
 (pFormatCtx->metadata,"ASF_Protection_Type",NULL,0);

 In either of the above 2 cases, decoding is likely to fail, but no crash
 anymore. I currently reject files if either "encryption" or
 "ASF_Protection_Type" are detected but removed the check to test for
 crash.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/495#comment:19>
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