[FFmpeg-trac] #9531(undetermined:new): Unexpected ghosting around a transparent video encoded with hevc_videotoolbox

[FFmpeg]

#9531: Unexpected ghosting around a transparent video encoded with
hevc_videotoolbox
-------------------------------------+-------------------------------------
             Reporter:  Chris        |                    Owner:  (none)
  Patuzzo                            |
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:  hevc         |               Blocked By:
  hevc_videotoolbox apple            |
  transparent alpha                  |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by Chris Patuzzo):

 Minor note: When attaching videos to the ticket, I changed -alpha_quality
 from 1 to 0.25 so that the transcoded videos would fit within the 2.5MB
 upload limit.
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Ticket URL: <https://trac.ffmpeg.org/ticket/9531#comment:1>
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