[Libav-user] Difficulty decoding libvpx VP8 with Alpha as RGBA

Carl Eugen Hoyos ceffmpeg at gmail.com
Mon Feb 1 10:03:08 EET 2021

> Am 01.02.2021 um 00:08 schrieb Craig Turner <turner.craig at gmail.com>:
> 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?

It may be necessary to configure with --disable-decoder=vp8

Carl Eugen 

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