[Spice-devel] The bottleneck of spice?

Marc-André Lureau mlureau at redhat.com
Mon Oct 29 03:12:34 PDT 2012


Hi

----- Mensaje original -----
> Hi, guys!
> 
> Using spice is unable to play 1080P videos smoothly. The pictures of
> each frame jitter frequently, especially when different compression
> algorithms switch.
> 
> So what is the bottleneck of spice to play 1080P videos?

The CPU: decoding and re-encoding of 1080p at 24-30fps is really a lot of computation  (in JPEG, but even more with video codecs)!

This is very wasteful, and should use video codec pass-through instead. It's a feature we would like to see some day: http://spice-space.org/page/Features/CodecPassthrough

Help welcome!


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