(2012-12-08 19:14)basher Wrote:(2012-12-07 09:24)wizziwig Wrote:(2012-12-06 08:12)basher Wrote: What about "perfect" 24p under Linux? Is it possible with the GPU from QS77 chipset?
If you mean 23.976, no Intel GPU can do it over HDMI. Assuming you need audio bitstreaming, you'll have to live with some dropped or repeated frames depending on how close to 23.976 it gets (could be as bad as every 42seconds if it only does 24.0).
Yes, that was my question. I don't think think my Asrock330 can produce 23.976 with the Nvidia ION GPU. From my understanding Nvidia produce output very close to 23.976. What is the relevance of bitstreaming in relation to 24p? How does it affect the framerate?
If the goal is to get perfect 23.976, does i matter if the video is rendered by CPU or GPU?
I mentioned bitstreaming because if you intend to use it, you can't speed-up or slowdown the audio to match an incorrect 24.0 fps output. You either live with some repeated video frames or some dropped audio frames. If you don't need bitstreaming, you can let XBMC decode and resample your audio to PCM and adjust the speed to match whatever the video rate is (doesn't need to be exactly 23.976 now). I don't think the audio resampling solution would work for DTS-HD since there was no open-source decoder last time I checked.
Any more comments on noise levels of this device? Is the fan audible when using pure software decoding of 1080p H.264 or VC1 without DXVA hardware acceleration?