[MPlayer-matrox] Matrox and HD playback

[Attila Kinali]

On Mon, 20 Oct 2008 08:58:59 +0200
"Valent Turkovic" <valent.turkovic at gmail.com> wrote:

> I have AMD Baron mobile 2500+ CPU and Matrox G450 graphics card does
> this setup have enough power to process HD video?

Could be. I have a G550 and a 2GHz Athlon something (can't remember
what exactly) and have normaly no problems watching 720p (depends on
the files, i have some that use too much CPU). 1080p is not possible
due to a limitation in the output filter of the G550 (i have not figured
out yet, how to workaround it).

Now, about the g450 you have. For video playing itself, it should
be fast enough. The problem will be the Back End Scaler (BES),
resp it's horizontal filter. It needs to be switched of for horizontal
video resolutions larger than 1023, which i do for the G550, but 
i don't know whether the G450 can do the same (nobody tested it
until now).
 
> I tried playing few HD clips in 1080i coded with H264 codec and it is
> really choppy, and I'm wondering it this would play if I would
> optimize my system somehow.

How did you display 1080i/p on your G450? using -vo x11?
Because Xvideo refuses to support anything above 1024 pixels
(both horizontal and vertical) and mga_vid doesn't support
vertical resolutions larger than 1023 pixels.

> I player with mplayer -vo settings and saw that there is a special
> matrox driver for mplayer. I compiled and installed it and got
> /dev/mga0 but I still have trouble with mplayer playing HD video.

Which i would assume.
 
			Attila Kinali

-- 
If you want to walk fast, walk alone.
If you want to walk far, walk together.
		-- African proverb