[Intel-gfx] Updated 965 textured video code

[Wu, Nian]

Richard Goedeken wrote:
> Chad wrote:
>> What might "packed video" and "planar" formats be?  I did a bit of
>> google-ing and really didn't find much beyond a pantent which
>> interestingly was for Intel :)
>> 
> 
> Video is commonly stored in luminance / chrominance formats instead
> of RGB for compression reasons.  It can have separate planes
> (buffers) for the Y (luminance) and U and V (chrominance) components,
> or it can have them packed together like YUYV YUYV YUYV.
> 

YUV formats fall into two distinct groups, the packed formats where Y, U
(Cb) and V (Cr) samples are packed together into macropixels which are
stored in a single array, and the planar formats where each component is
stored as a separate array, the final image being a fusing of the three
separate planes.
http://www.fourcc.org/yuv.php

If you play video with mplayer, it will report the video format like:
VO: [xv] 720x576 => 768x576 Plannar YU12

Nian