YUV420 textures

[fcorbier]

I'm currently porting the MPlayer media player to the Wii ( http://ronwarez.com/mplayerwii ) and for speed purposes, I'd like to display YUV textures on the screen instead of converting the YUV video source to RGB texture formats on every frame.

By grep-ing, I could see that there are some references to some YUV420p texture format, but I have no idea how to use it. Is there any source code or example available?

Thanks,
-fcorbier

[ector]

There is none, however, the TEV can be tricked into converting YUV to RGB. You would upload the Y, U and V channel into separate textures, and then combine them in a clever way using multiple texture coordinates and multitexturing.

I don't have a working code example though - I've just seen games doing this in Dolphin

[fcorbier]

Thanks for the tip, I guess I'm just gonna deal with RGB textures then