[FFmpeg-trac] #8856(undetermined:closed): Wrong colors (pink overlay) in webm video created from png image

[FFmpeg]

#8856: Wrong colors (pink overlay) in webm video created from png image
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             Reporter:  bers         |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:  invalid
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by bers):

 One final bit of information:

 > With some different input data (different set of png files), the problem
 only occurs only with "-crf 30 -b:v 0", but not without.

 That was inaccurate, I found. It was due to the fact that the
 gganimate::ffmpeg_renderer
 (https://gganimate.com/reference/renderers.html) uses pix_fmt = "yuv420p"
 as default option, but this is not used when other options are passed
 without pix_fmt. Mea culpa.

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Ticket URL: <https://trac.ffmpeg.org/ticket/8856#comment:4>
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