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

Boleslaw Ciesielski bolek-mythtv at curl.com
Mon Dec 19 21:40:26 EST 2005

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?



More information about the mythtv-users mailing list