[MPlayer-dev-eng] [PATCH] Add -va for video acceleration

[Gwenole Beauchesne]

Le 16 févr. 10 à 19:06, Reimar Döffinger a écrit :

> On Tue, Feb 16, 2010 at 01:37:58PM +0100, Gwenole Beauchesne wrote:
>> We need a way to identify the video accelerator because this can't
>> always be implied from the VO. WDYT?
>
> Well, why can't it be implied?
> I admit it is less user friendly and I expect some other issues with
> it, but in principle I would favour just reusing -vf format/-vf  
> noformat.
> Of course, if/when FFmpeg supports decoding fully to a raw buffer  
> via hardware
> we would need some option like that, however I'd consider that more  
> of a
> reason to not "use it up" for something else already now.

Actually, the Broadcom Crystal HD is a pure decode, you send the  
bitstream, you receive NV12 frames. So we can't really subvert it with  
another pixfmt since NV12 is a valid one. ;-) So is YV12, but  
libswscale will do NV12->YV12 faster than the current implementation  
in crystalhd.ko.