[FFmpeg-trac] #3846(avcodec:new): The output video show a wrong alpha

[FFmpeg]

#3846: The output video show a wrong alpha
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             Reporter:  Noir89         |                    Owner:
                 Type:  defect         |                   Status:  new
             Priority:  normal         |                Component:  avcodec
              Version:  git-master     |               Resolution:
             Keywords:  ProRes, alpha  |               Blocked By:
             Blocking:                 |  Reproduced by developer:  0
Analyzed by developer:  0              |
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Comment (by Noir89):

 Sorry for the late reply.

 After Effects Support Alpha. I export this image from FCP and in After
 Effects is a correct alpha channel.

 Video from FCP:
 https://dl.dropboxusercontent.com/u/13796764/ffmpeg/ProRes_FCP.mov

 And with an other picture from this video, i had some strong artefacts.
 Picture:
 https://dl.dropboxusercontent.com/u/13796764/ffmpeg/zz_0380.tif

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Ticket URL: <https://trac.ffmpeg.org/ticket/3846#comment:14>
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