MPCHC 10-bit? Full Floating Point? What?

[porschedrifter]

Ok quick questions.

I've read the official definitions of 10-bit RGB and Full Floating Point Processing, but I still do not understand what they do and when to turn them on.

My config is MPHC (EVR) > CoreAVC w/cuda (only YV12 selected)
But my setups are different, One is a high performance quad core desktop (gtx275) going to a 23'' 1080p monitor via DVI.

And second is a HP mini 311 Atom/Ion netbook going HDMI to a 40'' 1080p Sony KDL40ex500

Could someone please explain to me the 10-bit and Full Floating Point options and if I should have them enabled for both systems?

I have tested out each settings and they both work on both systems, but neither make a noticeable difference.

Also a little side note, is YV12 still the optimal output to be selected in CoreAVC for my setups?

[janos666]

DVDs and Blu-rays are encoded in YV12, so it's not a bad idea to set the decoder output to YV12 when you have a good renderer.
The floating point processing could always help, but the 10 bit input mode could cause problems (mostly on ATI/AMD VGAs). I think you should always enable them until you don't experience any problems (stability/performance/quality problems).
The 10 bit output is only for 10 bit display and Quadro/FirePro card combinations only. So, it's not a good idea for you.

Fine-tuned EVR with DXVA or CUDA is a good solution for the Atom/ION notebook and it's nice if it can handle the 10 bit and FP options!

But I think you should use madVR on your desktop PC. It's much better than the fine-tuned EVR (not to mention EVR with default settings).

You can use the AVSHD 790 test videos to decide. (->google)

[porschedrifter]

Thanks for the input.

I never have a problem with the YV12 output, I play mostly 720p-1080p x264 mkv's. Very rarely a DVD.

I don't notice any issues with 10-bit enabled, and I think my kdl40ex500 is a 10-bit panel (same thing?) Does MPCHC show (this display does not support 10-bit) in red when you enable the rendering status if it doesn't work or is there no real way to tell?

Could you by chance give me some info about finely tuning the EVR??

I will definitely check out the madVR next time i'm at my desktop.

thanks!

[janos666]

I don't notice any issues with 10-bit enabled, and I think my kdl40ex500 is a 10-bit panel (same thing?) Does MPCHC show (this display does not support 10-bit) in red when you enable the rendering status if it doesn't work or is there no real way to tell?

Yes, I have a display which theoretically supports 10(/12) bit input. According to Mininfo, the DP cable carries 10 bit/color signal right now (but only from the VGA LUT) but the driver won't allow me to use 30 bit display modes. (And I am not sure if my display is really capable or not. I never tested it with a true Quadro or FirePro and the feedbacks on forums are random.) So, I don't expect the "10 bit output" option to work.

10 bit input and FPP works on my notebook (Gef 8600M GT) and produces a nice result. But they don't work on my desktop PC (AMD HD5850). They cause either nothing or errors (yes, red or black screen). I think it's a driver bug or they take this "no 10 bit for consumer VGAs" more seriously than nVidia.


Could you by chance give me some info about finely tuning the EVR??

I have nothing else to tell: 10 bit input mode, FP16 processing and accurate vsync. The default EVR doesn't work with these settings.

I will definitely check out the madVR next time i'm at my desktop.

madVR is still better than EVR in 10 bit input and PF16P mode but this EVR setup is much better than the default EVR setup and it's good enough for a laptop (and it can't handle HD videos without DXVA anyway - and madVR doesn't support DXVA because it outputs NV12 - but it needs color corrections...)

[porschedrifter]

Good deal, thanks.