[FFmpeg-devel] [PATCH 0/2] VDA decoder for ffmpeg

[Sebastien Zwickert]

On Aug 22, 2012, at 12:06 AM, Gwenole Beauchesne wrote:

> Hi,
> 
> 2012/8/21 Xidorn Quan <quanxunzhen at gmail.com>:
> 
>> And since VDA can output raw yuy2 pictures,
>> there will be no performance loss to use this decoder instead of
>> origin H.264 decoder with VDA HWAccel (even faster because there is
>> no memory copying inside the decoder.)
> 
> Since the HW decoder will hardly emit YUY2, this incurs a format
> conversion. YUY2 requires more bits per pixel than NV12, so the
> possible gain you suggest may not be one actually.
> 
> I think it would be best to opt for the "native" decoder format first.
> Does VDA expose that?

2vuy format is the "native" decoder format it won't do an internal color
space conversion.

Regards,

--
Sebastien Zwickert