[FFmpeg-trac] #9088(avformat:closed): HEVC bitstream with alpha layer to mp4

[FFmpeg]

#9088: HEVC bitstream with alpha layer to mp4
-------------------------------------+-------------------------------------
             Reporter:  John         |                    Owner:  (none)
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  hevc mov     |  worksforme
  alpha                              |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by quinkblack):

 * status:  open => closed
 * resolution:   => worksforme

Comment:

 Remux works fine with samples generated from Apple's videotoolbox.

 The reason to current issue is that nvenc alpha layer encoding is broken.
 http://ffmpeg.org/pipermail/ffmpeg-devel/2022-December/305204.html

 Nothing we can do until Nvidia fixed their SDK.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9088#comment:9>
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