[FFmpeg-trac] #8344(ffprobe:new): ffprobe does not recognize yuva420p format (alpha channel) for webm

FFmpeg trac at avcodec.org
Thu Oct 31 07:09:53 EET 2019


#8344: ffprobe does not recognize yuva420p format (alpha channel) for webm
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             Reporter:  jhaand         |                    Owner:
                 Type:  defect         |                   Status:  new
             Priority:  normal         |                Component:  ffprobe
              Version:  unspecified    |               Resolution:
             Keywords:  alpha channel  |               Blocked By:
             Blocking:                 |  Reproduced by developer:  0
Analyzed by developer:  0              |
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Comment (by Gyan):

 The native VP8/9 decoders don't decode alpha but libvpx does, and ffprobe
 uses native decoders for a stream when available.  At present, there's no
 facility to force a specific decoder for streams.

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Ticket URL: <https://trac.ffmpeg.org/ticket/8344#comment:2>
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