[MPlayer-dev-eng] Re: ccache

[Tobias Diedrich]

After reading the explanation I have to correct myself:

Tobias Diedrich wrote:

> 3)
> The "color interlacing" can happen if an YUV411 Signal is converted to RGB
> or vice versa. You have to use different algorithms for interlaced and
> progressive material. For progressive material the first UV-Line
> contains color information for Y-Line 1+2, for interlaced material it is
> for Y-Line 1+3.
>
> 6)
> PAL vs. NTSC:
> PAL has a slightly higher luma resolution, but a halfed chroma
> resolution because of the Phase Alternating Line Color Encoding.
> IIRC NTSC is information wise comparable to YUV422 while PAL carries
> only as much information as an YUV411 picture...

s/YUV411/YUV420/

For a 4x4 pixel matrix the encodings should be:

YUV444:
   0    1    2    3
0 YUV  YUV  YUV  YUV

1 YUV  YUV  YUV  YUV

2 YUV  YUV  YUV  YUV

3 YUV  YUV  YUV  YUV

YUV422:
   0    1    2    3
0 YUV  Y    YUV  Y

1 YUV  Y    YUV  Y

2 YUV  Y    YUV  Y

3 YUV  Y    YUV  Y

YUV420:
   0    1    2    3
0 YUV  Y    YUV  Y

1 Y    Y    Y    Y

2 YUV  Y    YUV  Y

3 Y    Y    Y    Y

YUV411:
   0    1    2    3
0 YUV  Y    Y    Y

1 YUV  Y    Y    Y

2 YUV  Y    Y    Y

3 YUV  Y    Y    Y

-- 
Tobias								PGP: 0x9AC7E0BC
This mail is made of 100% recycled bits
Now playing: makurosu7: MUSIC SELECTION FROM GALAXY NETWORK CHART 05 - SEVENTH MOON
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: not available
URL: <http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/attachments/20030106/b1b87442/attachment.pgp>