[FFmpeg-trac] #8427(undetermined:new): DNxHD codec Alpha Channel support (Decode and Encode)

[FFmpeg]

#8427: DNxHD codec Alpha Channel support (Decode and Encode)
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             Reporter:  NNois        |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 Hi,
 In Broadcast there's 2 format in use Prores (Apple) and DNxHD (Avid).
 FFmpeg already support Alpha channel in Prores.mov files.
 How far are we to DNxHD support ?
 In my Understanding DNxHD never compress the Alpha Channel, is it a
 Stopper for the Encoder (or the decoder) ?

 Here is some test files, one is Prores with an alpha, the other is a DNxHD
 one

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Ticket URL: <https://trac.ffmpeg.org/ticket/8427>
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