[MPlayer-dev-eng] DMA or not DMA

Alex Beregszaszi alex at fsn.hu
Wed Nov 24 13:47:40 CET 2004


Hi,

> > The problem is multiple drivers trying to use the hardware at the
> > same time.
> 
> We have that problem with mga_vid already, but as X and mga_vid
> are accessing different memory regions, that's not a big issue.
> 
> The only real issue i see is, that during a DMA transfere,
> MPlayer has either to sleep until the buffer is coppied or
> that the codec has to use a copy of the buffer to work on.
> Both options are not very exciting.

Have a look at mplayerxp's vidix, it has dma support:
mplayerxp.sf.net and vidix.sf.net

-- 
Alex Beregszaszi 			e-mail: alex at fsn.hu
Free Software Network			cell: +36 70 3144424




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