[MPlayer-dev-eng] GBR24P default conversion to BGR24

Reimar Döffinger Reimar.Doeffinger at gmx.de
Mon Nov 7 19:43:19 CET 2011


On Mon, Nov 07, 2011 at 05:35:23PM +0100, Hans-Kristian Arntzen wrote:
> >I am definitely not against the patch, but why is is not ideal to use yuv444p
> >for -vo gl?
> >
> >Carl Eugen
> 
> GBR24P ->  YUV444 ->  RGB is not a lossless process with 8-bit channels. The most common usage for H.264 RGB (GBR24P) so far is storing lossless recordings of video game material, so preserving this losslessness when playing back is important if possible.

There is also the matter of speed and energy usage of two useless
conversions.
On the other hand -vo gl supports gamma, brightness, contrast etc.
with YUV444 but not with RGB...


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