2006-08-22, 10:17 AM
Just to clarify, GBPVR will be using VMR Default. I know this because you applied the registry patch which forces that configuration. As mentioned in the earlier post, the video decoder settings shown in GBPVR config does not show the current decoder configuration, and therefore is wrong.
S-video should produce a picture that is almost as good a the TV tuner. But to achieve this you have to disable all scaling and overscan correction.
1) Set screen resolution to same as source (to eliminate scaling), ie for MPEG2 recordings then: 720x480 for NTSC, and 720x576 for PAL This will make the video MUCH sharper, however it is a compromise because the Windows desktop edges will extend beyond the screen in all directions. This is because SDTV's have an inherent 10-15% overscan. Raise the windows taskbar to double-height to compensate.
2) Disable TV-out scaling and anti-flicker on the video card. For ATI, enable "video mode", and for Nvidia set anti-flicker to zero (far left on slider) and zero the overscan settings (don't stretch or shrink the screen size). Again this is another compromise because Windows desktop will now flicker badly, however video will be MUCH sharper.
3) Make the TV-out the 'primary' display and set screen refresh rate to same as source or close multiple, ie 60Hz for NTSC, 50Hz for PAL. This will eliminate temporal-rate conversion, ie stop horizontal bars going up or down the screen, and ensure motion is smooth.
4) Set GBPVR vertical and horizontal overscan to 1.00 in direct.ini
Again this will stop scaling, and hence sharpen video.
5) Ensure the video decoder is not applying any aspect ratio correction. For Purevideo, ensure display type is 'raw/anamorphic'
S-video should produce a picture that is almost as good a the TV tuner. But to achieve this you have to disable all scaling and overscan correction.
1) Set screen resolution to same as source (to eliminate scaling), ie for MPEG2 recordings then: 720x480 for NTSC, and 720x576 for PAL This will make the video MUCH sharper, however it is a compromise because the Windows desktop edges will extend beyond the screen in all directions. This is because SDTV's have an inherent 10-15% overscan. Raise the windows taskbar to double-height to compensate.
2) Disable TV-out scaling and anti-flicker on the video card. For ATI, enable "video mode", and for Nvidia set anti-flicker to zero (far left on slider) and zero the overscan settings (don't stretch or shrink the screen size). Again this is another compromise because Windows desktop will now flicker badly, however video will be MUCH sharper.
3) Make the TV-out the 'primary' display and set screen refresh rate to same as source or close multiple, ie 60Hz for NTSC, 50Hz for PAL. This will eliminate temporal-rate conversion, ie stop horizontal bars going up or down the screen, and ensure motion is smooth.
4) Set GBPVR vertical and horizontal overscan to 1.00 in direct.ini
Again this will stop scaling, and hence sharpen video.
5) Ensure the video decoder is not applying any aspect ratio correction. For Purevideo, ensure display type is 'raw/anamorphic'
[SIZE="1"]AMD Athlon X2 4200+ CPU, Gigabyte GA-MA770-DS3 mobo, 2GB RAM, 1TB SATA HDD, DigitalNow Dual Hybrid PCIE S2 and Hauppauge HVR2200 capture, ATI HD4670 video with HDMI-HDMI to 32" LCD TV at 1360x768, Win7 Home Premium 64bit, GBPVR 1.4.7, EVR renderer[/SIZE]