[confirm] Some TV channels stutter (heavily)/look "flawed" (3 Viewers)

[dale77]

First your hardware configuration should be more than enough to give you stutter free 1080i. I have the same card as you and have stutter free HDTV 1080i.

I can suggest you to:

- Try different codecs. In my configuration I'm not able to use cyberlink, they give me heavy stutter. I use microsoft codec included in windows 7 (unfortunately you're under vista). From (I think) RC2 and up I have this behaviour (before I used cyberlink powerdvd9 codecs without problems)
- Update all drivers and bios to latest versions. Also the one of the chipset and audio.
- Try to disable aero features (like transparency) that can bring load on your GPU. Leave aero itself enabled.
- Try to disable unused services on vista. vista is much more heavy than windows 7. There are guides out there on how to do this.

Last resort could be an upgrade to windows 7. I think is an OS that is much more reliable for real time services than vista.

Try different codecs? The one I'm using is my gold standard...
I'm using latest catalyst, bios, and audio. I never installed any chipset drivers, so I'm MS only there.
Disable aero bits to play hd video??
Upgrade to windows 7???

Thanks for the suggestions, but I reckon the problem most likely lies with MP1.1... Any suggestions in that direction?

 

[OnkelChris]

AW: Re: Some TV channels stutter (heavily)/look "flawed"

Thanks for the suggestions, but I reckon the problem most likely lies with MP1.1... Any suggestions in that direction?

Don't think so... There are many things, which could affect the playback of video inside MP. Have you tried to play those movies in e.g. Windows Media Player? Are there stutters too?

You switched to 720p and playback stuttered in the second run? So it run fluently in the 1st?

My hardware specs are really less than yours. But I don't have any problems in playing back 1080i. Could you upload an example file, which stutters on your system?

 

[dale77]

Had another go...

graphstudio shows I'm using the codecs I expect.

When stutter occurs shift-1 shows:

FPS 42-46 instead of 50

Dropped frames does NOT increase.

Graphs (red/green/yellow) goes mad for a bit. I mean initially the graphs were almost flat lines, then suddenly all peaks and troughs as if the view has suddenly zoomed in from 100m... Not sure what this means.

Don't think so... There are many things, which could affect the playback of video inside MP. Have you tried to play those movies in e.g. Windows Media Player? Are there stutters too?

You switched to 720p and playback stuttered in the second run? So it run fluently in the 1st?

My hardware specs are really less than yours. But I don't have any problems in playing back 1080i. Could you upload an example file, which stutters on your system?

Tried MPC-HC with the same codec, unfortunately MPC is not running DXVA for some reason (CPU 70%) so playback is noticeably less smooth.

Stutter is random and rare, so yes the first play of the file at 720p was fine. I can try to upload the file... would someone look at it?

 

[robyf]

Try different codecs? The one I'm using is my gold standard...
I'm using latest catalyst, bios, and audio. I never installed any chipset drivers, so I'm MS only there.
Disable aero bits to play hd video??
Upgrade to windows 7???

Thanks for the suggestions, but I reckon the problem most likely lies with MP1.1... Any suggestions in that direction?

There have been major changes in EVRPresenter from 1.0.2 to 1.1 RC so codecs that works well with 1.0.2 may not work with 1.1. As I said I changed by myself codec from cyberlink to MS from RC2 and up.

As for chipset drivers, it's worth a try to install the ones from the manifacturer (if more recent and available). I solved a stutter problem by doing this some time ago.

Not disable AERO but disable AERO features.

I do not say EVRPresenter is perfect, there are problems and developers are working hard on this but there are setup that works.

You can also have a try with tony's DLL here: https://forum.team-mediaportal.com/...nter-dshowhelper-community-development-81148/

 

[OnkelChris]

AW: Re: Some TV channels stutter (heavily)/look "flawed"

Graphs (red/green/yellow) goes mad for a bit. I mean initially the graphs were almost flat lines, then suddenly all peaks and troughs as if the view has suddenly zoomed in from 100m... Not sure what this means.

Stutter is random and rare, so yes the first play of the file at 720p was fine. I can try to upload the file... would someone look at it?

When enabling the stats, stutter can occure....

Upload your file, I will look into it. But when MPC-HC won't use DXVA, perhaps your system is wrongly configured... And is playback in 720p was fine (even if it was only once), then I would say, that it's not an MP problem.

 

[dale77]

Do you think this is a bit strange:

FPS 42-46 instead of 50

Dropped frames does NOT increase.

If I'm rendering 45FPS on 50FPS material yet I get no dropped frames?

 

[robyf]

Can you post a screenshot of the stats?

 

[OnkelChris]

AW: Re: Some TV channels stutter (heavily)/look "flawed"

Do you think this is a bit strange:

FPS 42-46 instead of 50

Dropped frames does NOT increase.

If I'm rendering 45FPS on 50FPS material yet I get no dropped frames?

upload your example file.

but i really think, your system has a problem, not MP! we all don't know, how your system is configured and can't say "hey, click here and there... now your system runs perfect."

post some logs. which skin do you use? which codecs? are you sure, DXVA is enabled for those codecs? which driver version for your graphic card? ...

 

[dale77]

Can you post a screenshot of the stats?

Not sure you'll be able to get much from this but... This image is after the stutter. Prior to the stutter, the graph lines looked almost flat.

So, there was a period from the start of playback at 50FPS, graph shows smooth lines, then a drop to 42-46FPS for a second or so (with no dropped frames), graph goes crazy and ends up like the attached back at 50FPS...

but i really think, your system has a problem, not MP! we all don't know, how your system is configured and can't say "hey, click here and there... now your system runs perfect."

post some logs. which skin do you use? which codecs? are you sure, DXVA is enabled for those codecs? which driver version for your graphic card? ...

Look at "my system" and replace 1.0.2 for 1.1RC6. That's what I'm using. DXVA must be enabled because CPU is around 10% during 1080i playback. My logs are here: https://forum.team-mediaportal.com/...vily-look-flawed-82578/index3.html#post625683

Cat 10.6 and Cat 10.5 both...

The thing is... system works fine with 1.1RC6, except when it stutters in random places, and the stutter does not correspond to cpu spikes, dpc spikes, io spikes, or even dropped frames in shift-1. Shift-1 does show FPS below 50 when stutter occurs though.

Also, the system works perfect with 1.0.2, so I know how to configure a working system. I have tried to just install MP1.1 on a clean vista, put on my codecs and go... but there is random stutter with MP1.1 which is not there with 1.0.2.

 

[TMI]

I also have "stutter" and dropped frames problems with some HD channels.
Somewhere on this forum I read that someone only had to start ATI Catalyst program to get rid of those problems.
I am running MP on an H55 motherboard with Core i3 processor. I took the change to start the program for the graphic settings.. and guess what? No stutter at all and sometimes dropped frames.

I hope this helps.