[MPlayer-dev-eng] [PATCH] LCL native decoder

[Arpi]

Hi,

> > When i first checked it, the colorspace didn't look like a standard 
> > YUV, and that's why i added my own conversion. I'll check it again 
> > now that the decoder is working.
> I had a look at the conversion code:
> 
> b = ((y << 20) + u * 1858076 + 0x80000) >> 20;
> g = ((y << 20) - u * 360857 - v * 748830 + 0x80000) >> 20;
> r = ((y << 20) + v * 1470103 + 0x80000) >> 20;
> Values are then clamped to 0-255 range.
> 
> That is the same (in integer math) of the second conversion formula 
> form colorspaces.txt (the one with Cb and Cr instead of U and V,and no 
> offset).
> 
> Does Mplayer uses the first one (with 128 offset) or the second one?

afaik the second one with clamping


A'rpi / Astral & ESP-team

--
Developer of MPlayer, the Movie Player for Linux - http://www.MPlayerHQ.hu