Add VA-API support

[GoogleCodeExporter]

I'd like to request that the va-api be added to the builds (if not already 
there), especially for Android. I've been reading around the web and there was 
some activity on this front with FFMpeg, but I have no idea where they left off 
or if its even available at all. The VA-API provides access to hardware 
acceleration of audio and video.

http://en.wikipedia.org/wiki/Video_Acceleration_API

http://stackoverflow.com/questions/21608860/android-and-ffmpeg-video-is-very-slo
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Original issue reported on code.google.com by mondain on 27 Feb 2014 at 5:53

[GoogleCodeExporter]

It looks like this only works for video playback. I don't believe Android 
offers a way to let an application draw video with that API, but I may be 
mistaken. If you find more information about that, please post it here, thanks!

Original comment by samuel.a...@gmail.com on 1 Mar 2014 at 10:50

• Added labels: Type-Enhancement
• Removed labels: Type-Defect

[GoogleCodeExporter]

Yeah I mis-spoke/typed; it is only for video playback, no audio. I'll post more 
as I find it.

Original comment by mondain on 2 Mar 2014 at 5:04