VMR9 Custom Renderer Tearing

[hick]

Has any progress been made yet in getting the GBPVR menu to display properly after returning from a show watched in full screen exclusive mode (without having to custom-program your remote to alt-tab)? I'm so impressed with the picture quality improvement on my machine that full screen exclusive mode provides!

[sub]

Has any progress been made yet in getting the GBPVR menu to display properly after returning from a show watched in full screen exclusive mode

No. In fact its taken a backward step in v0.99.5 - you'll get no video at all if you try to enable full screen exclusive mode in config.xml. I'll probably fix it some time in the future, but its not something I'm actively looking at so it could be while.

[John.Lamar]

so what are the options when watching via DVI to an HD set (at 1080i resolution)?

I'm also using an Nvidia card (7600GT) and have problems with vmr9/overlay and vmr7 doesn't work at all. I've tried plenty of options and this is what I've come up with:

VMR 9 Custom works, OSD, but tearing and stuttering sound. Otherwise full screen and pretty nice. Before getting the latest version of GBPVR VMR9 pushed the image down and to the left leaving the top of the video flickering the entire time. I've got issues with the image but I think that's a color correction or FFDSHOW.

Overlay, Garbage picture and no OSD. The image jumps to the top right corner (sometimes every second, sometimes constantly), but looks beautiful.

I'm using the latest GBPVR and NVIDIA drivers. NVidia's decoder is up to date (but to use SPDIF, I've choosen to use AC3 Filter for audio).

I'm kinda stuck. It had been working with overlay at one point but it just stopped one day. Instead of trying to find out why, I just started updating drivers and GBPVR hoping that would fix it. Now I'm kinda in a bind. From this thread, it looks like I'm staying there.

Playing video in another media player or powerdvd works fine. If I could carry over my comskip/showanalyzer files I'd use them to watch recordings (but this is barely an option)

(BTW: AMD 4000+, 512 MB Ram, 256MB PCI-Express 7600GT, playing video from a fast Western Digital EIDE drive formatted FAT32 to minimize transactions per read/write, and VMR9 playback keeps GBPVR around 10-18% usage with the total cpu usage never really getting above 30%, all my swaps and temp drives are on SATAIII drives)

[sub]

so what are the options when watching via DVI to an HD set (at 1080i resolution)?

I dont have anything more for your than what you already know. Basically nvidia card owners are likely to have problems when doing HDTV.

These are not problems of GB-PVR's making, but limitations or bugs in the nvidia device or it's drivers. The buggy aspect ratio handling of these devices has also been widely discussed with other apps like zoomplayer and DVBViewer etc. There is a big thread somewhere on why GB-PVR and these apps get the problem, and some others dont, and it basically comes down to this occuring because GB-PVR has an OSD mixed in with the video (which isnt too much to ask - come on nvidia fix some bugs please). Tearing is also hallmark of nvidia cards, widely discussed and occuring in heaps of apps - ATI owners fare much better

Fullscreen exclusive mode may help people with this, but its not something I can add at this stage (but I have tried), due to difficulties integrating with GB-PVRs GDI+ based UI. If GB-PVR had a DirectX based UI then things would easier, but it doesnt, and its not the sort of thing I can add easily. I also think some people will be disappointed when they do get fullscreen exclusive mode as it comes with some serious limitations - I'd much prefer nvidia just fix the things that are broken.

[John.Lamar]

Sorry for my apparent attitude earlier.

I can report that I've got it all working without any major "hacks." All I've done is selected vmr9 and used decoder pass through deinterlacing and disabled ffdshow. It isn't that ffdshow uses too much cpu, is that it doens't provide much more than the nvidia decoder already can do (unless I want crazy effects, that I don't need).

Using any other way to deinterlace the video other than the decoder itself simply adds a delay or a stutter to the playback. There is no tearing, however the sound will drop out every 5 to 10 minutes forcing you to rewind and play again. (I'm using AC3 decoder, and that is setup perfectly). I'm convinced that the problem may have something do to do with the I/O and I'm looking at that (kinda new, but maybe it's due to switching from overlay to vmr?)

Now I've got a general issue, and a big one. During live playback the video is about two seconds behind the audio (and I assume real time). I'm not sure how to fix this.

[Braklet]

I can report that I've got it all working without any major "hacks." All I've done is selected vmr9 and used decoder pass through deinterlacing and disabled ffdshow.

Just a general comment; I am following this thread, but not trying to hijack.

nVidia platforms can be made to work, and work well with GB-PVR. They are definitely quirky and seem to cause more forum hairpulling than other platforms. I agree that nVidia is slow to fix fundamental problems in their driver base, but I have no evidence that alternatives are that much better. I do know that nVidia actively supports their Linux drivers and that is enough to keep me buying their GPUs.