[FFmpeg-trac] #1750(avcodec:new): Prores encoders do not support writing alpha

[FFmpeg]

#1750: Prores encoders do not support writing alpha
-------------------------------------+-------------------------------------
               Reporter:  cehoyos    |                  Owner:
                   Type:             |                 Status:  new
  enhancement                        |              Component:  avcodec
               Priority:  normal     |               Keywords:  prores
                Version:  git-       |  alpha
  master                             |               Blocking:
             Blocked By:  1749       |  Analyzed by developer:  0
Reproduced by developer:  0          |
-------------------------------------+-------------------------------------
 Kostya's prores encoder currently only supports PIX_FMT_YUV444P10 as
 yuv444 format, meaning no alpha channel is written to the output file. See
 ticket #1728 for a sample with actual alpha content.

 There is currently no suitable pixel format in FFmpeg, see ticket #1749
 for the enhancement request.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1750>
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