[FFmpeg-trac] #5995(undetermined:new): Blockiness and ringing in prores4444 encoded video with alpha

FFmpeg trac at avcodec.org
Thu Dec 8 15:52:05 EET 2016


#5995: Blockiness and ringing in prores4444 encoded video with alpha
-------------------------------------+-------------------------------------
             Reporter:  stib         |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:
  prores,alpha                       |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by cehoyos):

 Do any of the following commands allow to reproduce the issue you see?
 {{{
 $ ffmpeg -i source.png -pix_fmt yuvj444p out.jpg
 }}}
 {{{
 $ ffmpeg -i source.png -vf format=yuv444p out.png
 }}}
 {{{
 $ ffmpeg -i source.png -vcodec prores_ks -pix_fmt yuv444p10 out.mov
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/5995#comment:4>
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