[Libav-user] Hardware accelerated decoding

[wm4]

On Wed, 4 Sep 2013 18:21:50 +0400
Kirill Gavrilov <gavr.mail at gmail.com> wrote:

> Hi,
> 
> On Wed, Sep 4, 2013 at 5:33 PM, Attila Sukosd <attila.sukosd at gmail.com>wrote:

> VDA is somewhat simpler than most others because the original Apple API
> doesn't provide the way to render result directly and you should copy frame
> back to CPU memory anyway.

That's not true. VDA actually provides a way to render the video
directly to an OpenGL texture. When we tried this (with native VDA
hwaccel instead of h264_vda), we experienced a tremendous reduction in
CPU usage.