[FFmpeg-trac] #4926(swscale:open): Alpha plane lost when scaling down in multiple passes (was: Visual artifacts while scaling PNG(rgba) -> PNG(rgba))

FFmpeg trac at avcodec.org
Wed Oct 14 14:37:39 CEST 2015


#4926: Alpha plane lost when scaling down in multiple passes
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             Reporter:  pszemus     |                    Owner:
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  swscale
              Version:  git-master  |               Resolution:
             Keywords:  png alpha   |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
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Changes (by cehoyos):

 * status:  reopened => open
 * reproduced:  0 => 1
 * component:  undetermined => swscale
 * version:  unspecified => git-master
 * keywords:   => png alpha


Comment:

 Not reproducible when upscaling afaict.

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Ticket URL: <https://trac.ffmpeg.org/ticket/4926#comment:3>
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