[FFmpeg-trac] #3707(avcodec:new): Support decoding transparency information in dnxhd streams

[FFmpeg]

#3707: Support decoding transparency information in dnxhd streams
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             Reporter:  cehoyos      |                    Owner:
                 Type:  enhancement  |                   Status:  new
             Priority:  wish         |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  dnxhd alpha  |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by richardpl):

 It looks like alpha is stored as raw separate 8bit plane.

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Ticket URL: <https://trac.ffmpeg.org/ticket/3707#comment:2>
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