[MPlayer-dev-eng] [PATCH] Add video acceleration infrastructure

compn tempn at twmi.rr.com
Mon Sep 28 23:08:47 CEST 2009


On Mon, 28 Sep 2009 21:36:07 +0300, Uoti Urpala wrote:
>On Mon, 2009-09-28 at 20:00 +0200, Gwenole Beauchesne wrote:
>> Le 28 sept. 09 à 18:22, Uoti Urpala a écrit :
>> > At least on a desktop machine the disadvantages are likely to be much
>> > more significant.
>> 
>> What disadvantages for instance?
>
>Reliability (decoding differences and different bugs compared to SW
>decoding,

this is true with any decoder (ffmpeg) and infinite samples. i think in
this case, we switch mis-aligned stack and gcc miscompilations for bugs
in the driver.

> things like VDPAU display preemption),

its still faster?

> reserved resources (video RAM limits,

all vo have this problem, xv has badalloc and max overlay size etc

> limits on simultaneously existing hardware decoder instances).

again, this is a limit with all vo.

mplayer is currently set by default to use mpegpes for mpeg1/2 because
it is faster. is there a difference between vdpau/vaapi and mpegpes ?

-compn



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