Video in top left corner

[pBS]

and other times it works perfectly....go figure..
right now tv is excellent...with acceleration...confirmed in logs and cpu usage..
seems like certain well formed streams don't mess it up, but others, once you play them, mess up everything after...
i'll play a bit more and see if it messes up again..

one thing to add, really would be nice to see what mode you're in with F7...like it used to..

yep, even .mpg plays fine now...with accel, while i'm recording something else..
i'll have to see if i can find out a file that corrupts it..maybe a properties thing..

FOUND ONE!
i found 2 videos that, after playing, can make it go from working to not working..and back...
oh, it's 1080i that doesn't work, 720p does...blah...deinterlacing for sure..

so it's any container [ts too], only mpeg2 compression, only vmr7 or 9 on windows xp...
evr/overlay/win7 work with any combination..

[johnsonx42]

Because GB-PVR didnt not use the render part of the VMR9 renderer, and instead use a custom renderer, aka 'VMR9 Custom'. I was hoping to avoid adding something similar, but may have to.

ah, I see, it was sub-magic that made it work before. Conversely though, I notice that when it works VMR9 renders quite nicely with NPVR, no tearing, stuttering, de-interlacing problems. VMR9 Custom never worked so well for me, no matter what combination of decoders, video cards and drivers I tried, neither on XP nor Win7. So I've been using VMR9-FSE for a year or so.

I wouldn't need VMR9 at all if EVR could support the aspect ratios with negative numbers, and I think a lot of other users are in the same boat. It seems in another thread discussing this ("new features" I think), others have pointed out that Media Portal seems to have found a way around this limitation of EVR, and as it's open source perhaps you could find out what they did?

[sub]

Negative aspect ratios can only be had in EVR by not using the render part of EVR and instead creating the equivalent of 'EVR Custom', where the application is then responsible for drawing all the frames using Direct3D (and you'll likely get a bit more tearing etc by doing this). Nothing is ever easy is it...

[mvallevand]

I use NPVR with EVR/ffdshow and I get custom resolutions, but it doesn't support the 10ft interface. If some hook between F7 and ffshow could be made it would be good, but it's not a big deal for me, because the NMT client gives me the resolutions I want with NPVR.

Martin

[johnsonx42]

Since the goal of using an aspect ratio mode with a negative number is to display only a portion of the source video, couldn't you set the source rectangle to be less than the entire video frame? ie, rather than trying to push the destination rectangle off the edge of the screen with a negative coordinate (which I gather is what EVR's default presenter won't do), just grab less than the entire source rectangle in the first place. This is what I understand from reading here: http://msdn.microsoft.com/en-us/library/...S.85).aspx and here: http://msdn.microsoft.com/en-us/library/...S.85).aspx

edit: oops, first URL was wrong, fixed.

[sub]

Since the goal of using an aspect ratio mode with a negative number is to display only a portion of the source video, couldn't you set the source rectangle to be less than the entire video frame? ie, rather than trying to push the destination rectangle off the edge of the screen with a negative coordinate (which I gather is what EVR's default presenter won't do), just grab less than the entire source rectangle in the first place. This is what I understand from reading here: http://msdn.microsoft.com/en-us/library/...S.85).aspx and here: http://msdn.microsoft.com/en-us/library/...S.85).aspx

It doesnt work. I've played with those API many times trying to get it working.

[johnsonx42]

you mean the API doesn't do what the documentation says? Come on, that NEVER happens.

[sub]

I had experimented during testing with a way to get negative aspect ratios with EVR. It kind of worked, but had a downside that the OSD got narrower the further things were pushed outside of the window. I never found any way to stop this happening. You can try the attached patch which has that functional enabled to see if helps you.

[johnsonx42]

cool, I'll give it a shot......

<---15 minutes later---->

That works great actually. My custom aspect ratios I copied from GB-PVR look a little different in NPVR (4:3 programs on 16:9 channels don't quite fill the screen now), but they're just a tweak away from perfection.

Yes, I see what you mean about the OSD, but I consider that pretty minor against the major benefit. Anyone who doesn't use the negative ratios won't see any change, and half the people who do probably won't even notice.

Much later on, when you're polishing for perfection you could probably fix the OSD size/position issue by applying a fudge-factor to the OSD rendering based on the selected aspect ratio mode. Perhaps something like an on-the-fly adjustment to the UI zoom setting? Maybe even include the fudge-factor in the aspect ratio definition in config.xml, so that it's up to us to fix it as we see fit rather than you having to include code to calculate it.

Honestly though, it's such a minor issue it doesn't need to be fixed unless and until you want to. Just call it a known side-effect.

Also great that now it shows the select aspect ratio on the OSD.

Thanks sub, you're a genius as always!

[johnsonx42]

sub, can you explain how the Auto aspect ratio selection works in NPVR? It doesn't seem to be the same as in GB-PVR.

To wit, in GB-PVR I had this:

Code:

<AspectRatioModes shape="4x3">
  <AspectRatioMode name="Auto" ratio="0,0,0,0" />
  <AspectRatioMode name="Fill" ratio="0,0,1,1" />
  <AspectRatioMode name="LetterBox" ratio="-0.15,0,1.15,1" />
  <AspectRatioMode name="WideScreen" ratio="0,0.125,1,0.875" />
  <AspectRatioMode name="Zoom" ratio="-0.15,-0.15,1.15,1.15" />
  </AspectRatioModes>

In auto mode, it would elegantly select "Fill" for 4:3 channels, and "Letterbox" for 16:9 channels. My "Letterbox" settings actually accomplished an "unletterbox" effect, and would fill the 4:3 screen. Then for manual selection I had "Widescreen" for times I actually did want to see the full 16:9 frame, and "Zoom" for some special cases (like a 4:3 show in a 16:9 letterbox on a 4:3 channel - stupid, but it happens).

Now in NPVR I have this:

Code:

<AspectRatioModes shape="4:3">
  <AspectRatioMode name="Fill">0,0,1,1</AspectRatioMode>
  <AspectRatioMode name="LetterBox">-0.15,0,1.15,1</AspectRatioMode>
  <AspectRatioMode name="WideScreen">0,0.125,1,0.875</AspectRatioMode>
  <AspectRatioMode name="Zoom">-0.15,-0.15,1.15,1.15</AspectRatioMode>
</AspectRatioModes>

But Auto doesn't seem to do the same thing as before. 4:3 channels fill the screen as they should, but 16:9 content is letterboxed even though my "LetterBox" setting should actually stretch and crop to fill the screen. Manually selected they all work as they should (though they do need to be tweaked a little for the new EVR patch).

Thanks.