Re: [Gnash-dev] Hardware acceleration support

[Gwenole Beauchesne]

On Tue, 2 Mar 2010, Rob Savoye wrote:

> > The performance improvement is really effective for H.264 videos
> > playback only. You probably should downgrade your system to an Atom. ;-)
>
>  You have a point. :-) I have no Atom hardware to test on, so yeah, on
> a dual core it may make no difference. Course that means on a fast
> enough CPU, VAAPI doesn't buy anything, so we'd probably want to disable
> it. I guess I had just assumed that a hardware decoding would be faster
> than software decoding, even with a dual-core.

I have a Phenom X3 (triple core) and it does help. For example, the 2012 
trailer I pointed to you doesn't decode in real time with the SW decoder. 
So, this generally is a win for H.264 on all platforms.

Please point me to your samples so that I can check where the bottleneck 
is. I believe the clip was poorly encoded.

Besides using HW video decode acceleration reduces power used since the 
CPU can run at lower frequency: 1 - 1.8 GHz vs. 2.7 GHz without HW 
acceleration.