[FFmpeg-devel] About xvmc_acceleration

Gwenole Beauchesne gbeauchesne
Fri Feb 13 14:34:52 CET 2009

On Fri, 13 Feb 2009, Gwenole Beauchesne wrote:

> On Fri, 13 Feb 2009, Reimar D?ffinger wrote:
>> I asked these questions because _precise_ answers to these would allow
>> me to see the point of xvmc_acceleration.
> And, if possible, I would like to avoid using pix_fmt that have a mixture of 
> CODEC and PIX_FMT in the name. i.e. IMHO, pix_fmt is really not a good place 
> to hold anything that is not actually a pixel format specification.
> It seems we all forgot that VDPAU_MPEG2 et al. are not pixel formats in the 
> first place. ;-) But of course, trying to fix that would complicate matters.

IOW, as an intermediate solution, I'd agree to use PIX_FMT_ACCEL_CODEC 
formats but only for ::get_format() purposes. Codecs would then have to 
use some other thing expressive enough. e.g. the xvmc_acceleration or its 
hwaccel_id replacement.

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