Best TV Post Processing Settings? (1 Viewer)

[safcsat]

Hey

Anyone got any settings they care to share for getting the best out of DVB-S (Standard Def) channels?

I mean Post Processing settings, ffdshow raw filter etc.

I had a bit of a play with the settings from the Wiki but couldnt get them to give clear picture, always looked too false.

Hardware wise I have:

GeForce 8800 GTS 512MB
42" 720P Plasma (1024 * 768 native res) but running at 1280 * 720 so I can get 50Hz
1 x FloppyDTV DVB-S2
1 x Hauppague WinTV Nova S2

Never thought of messing with post processing before but seems that I can make standard def channels look a LOT better with the right settings - anyone help?!

Cheers

 

[kszabo]

my opinion (without trying to be a smartass): best prostprocessing setting is "off".

Use instead the DXVA capabilities of your nVidia 8800GTS. It can do some postprocessing also for you AFAIK (I have ATi and could activate "denoise", "edge enhancement" etc if I wanted but I don´t). I guess this would deliver the best picture quality for you.

As far as I understand the whole thing works like this:

mpg2 Steram (SDTV) -> decode with codec/gpu -> deinterlace (SDTV is almost always 576i) -> upscale (to 720 or 1080) -> if needed denoise, edge enhancement, deblock etc (as "postprocessing")

1st possibility
you can do all of these steps through your CPU (with a mpg2 codec used in software mode and postprocessing with ffdshow raw filter upscaling inclusive), and send the complete result to your graphic card (this does not have to do anything).

2nd possibility
you use DXVA: the codec passes the compressed video stream untouched to the GPU and this does everything (decodes, deinterlaces, upscaling, GPU-postprocessing). You can adjust all of this through the GFX driver (nVidia manager or ATi catalyst control center)

You cannot combine GPU-decoding (DXVA) with software-postprocessing (your graphic card cannot send anything back for software processing, this is a one-way-street)

The second possibility unloads your CPU (heat, costs, noise!). With the first method you can reach 100% CPU usage even with SD-material (just imagine: upscaling to 1920x1080 and denosie+edge enhancement of 60 fps etc.). And I doubt that you get a better picture than that your 8800GTS can deliver.

 

[grubi]

The biggest problem is, that if you activate post processing via ffdshow this breaks hardware deinterlacing of the graphic card. I can only speak for ATI but there you will hardly reach the deinterlacing quality by any software based processing.

 

[kenwonders]

I agree. Your best bet for quality is using DXVA wherever possible.