[FFmpeg-trac] #7923(avcodec:new): alpha info is lost during transcode to gif from apng or animated webp

[FFmpeg]

#7923: alpha info is lost during transcode to gif from apng or animated webp
-------------------------------------+-------------------------------------
             Reporter:  gbp.gap      |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  avcodec      |                  Version:  git-
             Keywords:  apng, gif,   |  master
  alpha, webp                        |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 How to reproduce:
 {{{
 % ffmpeg -i alpha.apng alpha.gif
 ffmpeg version N-93899-g1d74150
 built on gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-16)
 }}}
 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.

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Ticket URL: <https://trac.ffmpeg.org/ticket/7923>
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