[FFmpeg-trac] #5792(undetermined:closed): Alpha planes not found/ignored decoding VP8a/VP9a (VPxa)

FFmpeg trac at avcodec.org
Tue Aug 23 20:36:09 EEST 2016


#5792: Alpha planes not found/ignored decoding VP8a/VP9a (VPxa)
-------------------------------------+-------------------------------------
             Reporter:  cdlvcdlv     |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:  invalid
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------
Changes (by cehoyos):

 * keywords:  VP8a VP9a decoding alpha-planes =>
 * status:  new => closed
 * resolution:   => invalid


Comment:

 Replying to [ticket:5792 cdlvcdlv]:
 > {{{
 > ffplay -i ball+alpha.webm -vf alphaextract
 > }}}
 This needs {{{-vcodec libvpx}}}.

 Please understand that this is not a support forum, and that separating
 the console output from the command only makes reading tickets much more
 difficult.
 I opened ticket #5793 for the issue with the movie filter, work-around is
 to compile with {{{--disable-decoder=vp8,vp9}}}.

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Ticket URL: <https://trac.ffmpeg.org/ticket/5792#comment:1>
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