On 07/09/16 12:40, Timo Rothenpieler wrote:
libavutil/pixfmt.h defines AV_PIX_FMT_RGB0 and the other ones like this:
packed RGB 8:8:8, 32bpp, XRGBXRGB... X=unused/undefined
So I would expect the Alpha-Channel to be anything, and converting from
RGBA to RGB0 to be a no-op "conversion".
It is not an issue. x11grab produces BGR0 and nvenc can handle it with the
patch. It's giving me 100fp/s (up from 47fp/s) with a 1920x1080 monitor. I'd
imagine people with 4K displays will be happy, too, although they will have to
live with lower speeds of perhaps 30 fp/s. Would be interesting to know how it
performs on 4K though.
If there is really an RGBA/BGRA input then it needs to be convert to RGB0/BGR0.
Until then is it a theoretical issue. Might be the module producing RGBA/BGRA
can produce RGB0/BGR0, too.
Sven
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