[mythtv-users] Re: Choppy hd live tv playback with HD3000

Isaac Richards ijr at case.edu
Mon Dec 19 21:47:29 EST 2005

On Monday 19 December 2005 21:40, Boleslaw Ciesielski wrote:
> Brandon Beattie wrote:
> > If you want to use IDCT hardware acceleration (Also known as XvMC
> > Hardware decoding), see the same setup->tv-settings->playback->page 1.
> Is IDCT really the same as XvMC? I thought IDCT (inverse discrete cosine
> transform) was part of the calculations in the MPEG2 decompression
> algorithm (and JPEG as well). XvMC is "motion compensation" which I
> thought had to do with deinterlacing.
> What is really the relationship between them?

XvMC can include both MC and IDCT accel.


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