El 31/1/21 a las 20:08, Craig Turner escribió:
You are absolutely right - the format is AV_PIX_FMT_YUV420P, so it
seems the alpha channel is not being decoded. Is there something
specific I need to do to ensure it does indeed get decoded?
grep'ping thru the ffmpeg's libavcodec sources for vp*.c it seems only
vp56 supports alpha.
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