[FFmpeg-trac] #5622(avfilter:closed): Image overlay with straight alpha

FFmpeg trac at avcodec.org
Sun Dec 2 20:47:03 EET 2018

#5622: Image overlay with straight alpha
             Reporter:  jb_alvarado  |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:  avfilter
              Version:  git-master   |               Resolution:
             Keywords:  alpha        |  worksforme
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
Changes (by richardpl):

 * status:  new => closed
 * resolution:   => worksforme
 * version:  unspecified => git-master
 * component:  undetermined => avfilter


 Your png file is with premultiplied alpha. Overlay filter have now alpha
 If I set alpha to premultiplied and format to rgb I get intended output.

Ticket URL: <https://trac.ffmpeg.org/ticket/5622#comment:3>
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