Deinterlacing 1080i

[velinn]

I do use XP. I've been waiting to get Win 7 until I can grab another hard drive to back up my stuff to and do a clean install. Overlay huh? I haven't tried that yet. Everyone has always said to use VMR9. I'll give that a shot too. There is a specific show that I watch that I can really see the interlacing and blurring and that is my test show. So when that comes on tonight I'll be able to see how good SAF is working or not working, and I'll try using Overlay too.

As reference for what looks the best I've been using VLC with the Linear option on gbprv's pause buffer. It is excellent. No blur, no jerkiness. Its just a real hassle and there is no reason I shouldn't be able to get the same results from within gbpvr.

I'm optimistic that its just something I'm overlooking. I appreciate all the suggestions.

[velinn]

Well SAF did nothing at all. As blurry as ever. I did note that in DXVA mode there was no jerkiness at all, so that was nice, however without proper deint its pretty much useless.

Also when I used Overlay as someone suggested, video wouldn't play at all and the core gb-pvr was using would just shoot up to 100%. No amount of fiddling would fix it. Is this an issue with SAF or something else?

[hoborg]

velinn:

VLC is not directshow based player, you cannot compare VLC and GB-PVR.
Overlay is relly old renderer, i didnt think DXVA will be working in that mode (not sure), WMR9 FSE need to be used on XP.

What do you mean "blurry as ever"? Not sure about that...
For begining, can you send me SAF logs (look on your system root) - GB-PVR logs can be usefull too.

[velinn]

I'm not comparing the technical aspects of the two, but in practical terms, that is, what I actually see on my screen, VLC deinterlaces perfectly and no combination of filters has done that with gb-pvr except for nVidia's PureVideo decoder which unfortunately introduces a jerk in the image about every 2 seconds.

When I say I'm comparing the two I'm comparing how it looks. VLC eliminates scanlines during fast movement and blurriness during slow movement. When I say blurry I mean if a person moves their face slowly it becomes mush until they stop moving and then it comes back into sharp focus. SAF did not eliminate the blur. VLC does.

I understand the underlying frameworks for them differ but really all I'm concerned about is the end result. What VLC looks like is what I want. Movement in it with the Linear deint option selected is extremely fluid and 1080i is really really beautiful. "Linear" in VLC is defined as; Bob with linear interpolation: instead of displaying each line twice, line 2 is created as the average of line 1 and 3, etc.

If I have to watch with VLC thats fine, as there is only one broadcast station in my area that broadcasts in 1080i and I only watch 2-3 shows on it. The rest are 720p and that looks great in gb-pvr. It would just be nice to have an all-in-one solution.

[hoborg]

I'm not comparing the technical aspects of the two, but in practical terms, that is, what I actually see on my screen, VLC deinterlaces perfectly and no combination of filters has done that with gb-pvr except for nVidia's PureVideo decoder which unfortunately introduces a jerk in the image about every 2 seconds.

When I say I'm comparing the two I'm comparing how it looks. VLC eliminates scanlines during fast movement and blurriness during slow movement. When I say blurry I mean if a person moves their face slowly it becomes mush until they stop moving and then it comes back into sharp focus. SAF did not eliminate the blur. VLC does.

I understand the underlying frameworks for them differ but really all I'm concerned about is the end result. What VLC looks like is what I want. Movement in it with the Linear deint option selected is extremely fluid and 1080i is really really beautiful. "Linear" in VLC is defined as; Bob with linear interpolation: instead of displaying each line twice, line 2 is created as the average of line 1 and 3, etc.

If I have to watch with VLC thats fine, as there is only one broadcast station in my area that broadcasts in 1080i and I only watch 2-3 shows on it. The rest are 720p and that looks great in gb-pvr. It would just be nice to have an all-in-one solution.

VLC is completly software decoder, it use its own audio/video decoders and renderer, so result should be the same on all hardware and even platform - if i am not wrong VLC is ported to LINUX too.
GB-PVR just ask DirectShow to render audio/video, so result depends on used decoders and hardware you have. If you have DXVA capable hardware and suitable decoder, then you GPU will do the work (decoding and deinterlacing). I saw something like "blurring" too and it was caused by software deinterlacing.

Again you LOGs please...

BTW:
Did you see something like that?


EDIT:
Another "blur" effect can be caused by enabled (and having hight value here) "Edge enhancement" + "de-noise" on ATI cards (not sure if nvidia have similar feature). I have it ON, but set value to "1" in both.

[velinn]

Yes those images are exactly right. Right now with SAF the middle image is exactly what I'm seeing. It literally makes my eyes cross and go unfocused. Quite unpleasant. It would seem then that my GPU is not doing the work. As far as I know DXVA is on. It showed as on when using the PureVideo codecs, and it looked very similar to the last image but again the jerkiness is the deal breaker in that situation. Not sure why its not working with SAF (or any combination of ffdshow filters).

I need to run to work, but can you send me a PM of what logs you need and where they can be found? I think we've found the issue, now its just a matter of correcting it.

[velinn]

Okay, I got it.

I uninstalled SAF and made sure no video codecs were on the system at all. Then installed PureVideo again. Its working in DXVA and deinterlacing 1080i perfectly as good as, or I dare say better than, VLC was doing before. Everything looks amazing. I realized that VMR9 works great in window mode for times when I need to have it smaller and am just watching tv while doing other stuff, but it can't handle being full screen. VMR9 FSE does full screen perfectly. (and yes i tried that with SAF and CCCP as well and it didn't)

So I guess my issue now is how to install something like CCCP or K-lite without it installing MPEG2 codecs that'll screw up my finally working gb-pvr set up. lol. Its always something, eh?

[BigMoose]

Having got that far I would advise against installing any codec packs. If you can find the individual filters you need and register them manually is saves the pack screwing whatever works. I'm always ignoring my own advice mind you and when everything is perfect except one niggle, I install a codec pack and screw up the lot :-) I've never found a way to remove everything and start again though without reinstalling windows... There's far too many things listed in graphstudio to unregister the lot and I'd probably make far more mess doing that anyway.

[liteswap]

BigMoose, I feel your pain! I find everything seems to go swimmingly, I change something (for a very good reason - it's the only reason) and it's like a game of snakes and ladders - and I just slide down a snake...

[hoborg]

Having got that far I would advise against installing any codec packs. If you can find the individual filters you need and register them manually is saves the pack screwing whatever works.

Mostly it is not only about register the codec, you need to modify registry too.