Picture quality MP1.0 vs DVBviewer (1 Viewer)

[Mister Bean]

Yesssssssss, I am a happy man now!!!

grubi,
Disabling the option 'Use nonsquare mixing for scaling' solved the aliasing problem. I'm very happy that you experienced the same quality problems. Enabling nonsquare mixing was resulting in strange 'wirenetting' patterns in the small details of a MPEG2 picture (this is good visible in the hair of a person).

And of course, I have no edge enhancement or noise reduction enabled in CCC.

So, for optimal MPEG2 pictures disable 'Use nonsquare mixing for scaling' in VMR settings of Mediaportal.

Many thanks.

Regards,
Nico

 

[tourettes]

Yesssssssss, I am a happy man now!!!

By using EVR I have been the happy man for long time

So, for optimal MPEG2 pictures disable 'Use nonsquare mixing for scaling' in VMR settings of Mediaportal.

Also someone should have a peek on the MP / VMR9 allocator code to make sure that we are doing all thing correctly when the "Use nonsquare mixing for scaling" setting is enabled. (Which affects only VMR9).

 

[Mister Bean]

Thanks!

So we have probably a bug here?! Because non square mixing normally offers a better picture quality? At the moment the picture quality become worse if this option is selected (only when VMR9 or EVR is used in XP).

Regards,
Nico

 

[rtv]

Thanks!

So we have probably a bug here?! Because non square mixing normally offers a better picture quality? At the moment the picture quality become worse if this option is selected (only when VMR9 or EVR is used in XP).

Not at all. Please read this. You'll see that everything is working as expected.

I just rechecked the code. As MP's own presenter does the AR correction (offering the different zoom modes which planescene.cs implements) you usually would not want to disable the non square mixing. Of course the two extra scaling steps will smooth your picture - but as we noticed earlier some people might prefer this and some people might prefer the opposite...

So it all comes down to your personal taste - choose the setting which works best for you (after all - that's what settings are there for)


Regarding the filtering options: these are D3D Texture filter types - not really surprising that you can't see a difference watching a fullscreen video

 

[hjbaard]

My HTPC is connected via HDMI to my Panasonic 50PV70 plasma screen.

I have a totally different (off topic) question about your setup. How well does the HD material perform on your plasma screen (in combination with the ATI HD3450)?
For instance when the camera is panning from left to right, do you see any stuttering?
Or when there is scrolling text on the bottom of the screen does this run smoothly?
Or watching the credits screen of a movie (scrolling text)?

I'm asking this because I now have an old, not HD ready, plasma screen with a NVidia 8600GT video card and when I watch for example Planet Earth in 1080P I'm experience stuttering. So I'm planning to by the new Panasonic P50S1 plasma display (comes out in march) and I want to know if this will fix the stuttering.

Thanks

 

[tourettes]

I just rechecked the code. As MP's own presenter does the AR correction (offering the different zoom modes which planescene.cs implements) you usually would not want to disable the non square mixing. Of course the two extra scaling steps will smooth your picture - but as we noticed earlier some people might prefer this and some people might prefer the opposite...

Good that you checked the code (I didn't yet have time). So this confirms my eyes are ok. MP picture quality is actually better than in DVBViewer (as it will be more closely repetion what the broadcaster has sent).

 

[Mister Bean]

My HTPC is connected via HDMI to my Panasonic 50PV70 plasma screen.

I have a totally different (off topic) question about your setup. How well does the HD material perform on your plasma screen (in combination with the ATI HD3450)?
For instance when the camera is panning from left to right, do you see any stuttering?
Or when there is scrolling text on the bottom of the screen does this run smoothly?
Or watching the credits screen of a movie (scrolling text)?

I'm asking this because I now have an old, not HD ready, plasma screen with a NVidia 8600GT video card and when I watch for example Planet Earth in 1080P I'm experience stuttering. So I'm planning to by the new Panasonic P50S1 plasma display (comes out in march) and I want to know if this will fix the stuttering.

Thanks

HD material (mainly BluRay rips in MKV containers) are looking absolutely wonderful on my 50PV70. In most cases stuttering problems (camera pans, ticker tapes, etc) are caused by a wrong refresh rate in your display driver. The refresh rate of your display driver must match with the refresh rate of the source material. TV transmissions here in Europe are always using a refresh rate of 50Hz (interlaced). For HD transmissions can also 50Hz (progressive) be used (for example Arte HD on Astra 19,2E)

Regards,
Nico

 

[grubi]

Regarding the filtering options: these are D3D Texture filter types - not really surprising that you can't see a difference watching a fullscreen video

So what they are actually for?
I was under the impression that these are used for scaling operations.

Not at all. Please read this. You'll see that everything is working as expected.

But there still is something I didn't get.
AFAIK the Non-Square option only has influence if you are mixing multiple streams of different formats together. But this is not the case here - or did I miss something?

 

[grubi]

Ok I have done it.
I installed Vista on the identical computer to see what PQ is all about. I have to say that I'm a bit dissapointed as PQ is worse than what I have in WinXP.
To make this comparable I of course use identical software versions on both setups.
To take precaution from being flamed here I also have to point out that PQ also heavily depends on the graphic card driver, so this may also be the cause of the degree. I took the identical Catalyst version 8.8 however that does not mean the two (Vista and XP) have to be identical. The ghosting which is much stronger visible under Vista is AFAIK an issue which ATI is already aware (in both version).

I will keep the image and retry when Catalyst 9.1 is out.

grubi.

 

[disaster123]

grubi
have you enabled AERO glass?