[FFmpeg-trac] #10506(avformat:new): FFmpeg fails to decode MKV attachment without an extra step of -dump_attachment

[FFmpeg]

#10506: FFmpeg fails to decode MKV attachment without an extra step of
-dump_attachment
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             Reporter:  Sun_Serega  |                    Owner:  (none)
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  mkv         |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  1           |
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Changes (by mkver):

 * analyzed:  0 => 1
 * keywords:   => mkv
 * version:  unspecified => git-master
 * component:  undetermined => avformat

Comment:

 webp is not in the list of image tags in lavf/matroskadec.c. Adding it
 would fix this; but a better solution is to use the mime types of the
 relevant AVCodecDescriptor. I'll take care of this.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10506#comment:1>
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