[FFmpeg-trac] #5108(ffmpeg:closed): png -> webm produces video with colors larger and offset

[FFmpeg]

#5108: png -> webm produces video with colors larger and offset
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             Reporter:  petrelharp  |                    Owner:
                 Type:  defect      |                   Status:  closed
             Priority:  normal      |                Component:  ffmpeg
              Version:  git-master  |               Resolution:  invalid
             Keywords:  libvpx      |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by petrelharp):

 It's clearly a bug *somewhere*.  I've attached the video produced and a
 screenshot.  But, it turns out there isn't a problem when viewing the
 video in Chrome; only in Firefox, so maybe the problem is there.

 *Something* in ffmpeg changed, since videos produced with earlier versions
 of ffmpeg displayed fine in Firefox.

 [... more testing...]

 And, it turns out that it's only a problem in Firefox 38; Firefox 42
 displays it fine.  Never mind.

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Ticket URL: <https://trac.ffmpeg.org/ticket/5108#comment:2>
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