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dxva fffmpeg usage

PostPosted: Fri Feb 11, 2011 7:07 pm
by hennys
Hi,

I saw on the web a ffmpeg version built for a program called ipimp that contains dxva (gpu usage).

http://code.google.com/p/ipimp/download ... p&can=2&q=

Is it possible to use/reuse/adjust this version of ffmpeg with serviio, so serviio can benefit from gpu power ?

Kind regards,

Hen

Re: dxva fffmpeg usage

PostPosted: Sat Feb 12, 2011 11:28 am
by zip
I assume they compiled it with a patch. If someone can find it then it should be no problem (as long as it won't break and work on all OSes)

Re: dxva fffmpeg usage

PostPosted: Sat Feb 12, 2011 9:04 pm
by hennys
zip wrote:I assume they compiled it with a patch. If someone can find it then it should be no problem (as long as it won't break and work on all OSes)


Hi zip,

dxva is a windows technology, so all platforms will be out of the question.

I have done some test with this and either I don't know the correct command line, or it is not encoding any faster than CPU based.

Regards,

Hen

Re: dxva fffmpeg usage

PostPosted: Sun Feb 13, 2011 4:20 pm
by hennys
With ony one thread the transcoding with GPU was about 25% faster. With more cpu cores the difference fades.

Kind regards,
Hen

Re: dxva fffmpeg usage

PostPosted: Sun Feb 13, 2011 5:39 pm
by zip
Thanks for the info