Audio sync problems when screen set to 24 Hz (2 Viewers)

[Seeco]

OK. I think I'm going to wait for that then, thanks for letting me know.

 

[anvandarnamn]

What I meant with "Slideshow" is a heavy stutter (like a frame rate of 10-15fps). We are still talking about video and not a real picture slideshow.

I see, sorry my mistake. And again thanks for helping testing this.

Please check that Win 7 is really using the codecs you selected. Win 7 likes to enforce codecs on users. Also please provide the logs from MP (set log level to debug) when you reproduce the problem. In general if there is no larger CPU/GPU/HD limitation you shouldn't see extreme juddering with a 23,976fps file and matching refresh rate on remuxed BRs.

There was a recent discussion about this here, where a user had similar issues. Maybe that's the same case for you as you had similar issues before trying the patched DLLs.

The "freezed frames" would indicate that frames are arriving very late from the mixer and need to be dropped instead of rending them anyway and causing an audio sync issue. Any kind of skipping, pausing or similar action should have no effect as this does not compensate for the bug in the presenter anymore. So basically the DLLs behave correctly.

Question is why the frames are coming so late to the presenter in your case. You should see a ton of "dropped frames" lines in the evr.log

Hi!

tried to watch a movie last night ( remuxed Bluray ) but im still having syncissues at 24hz. (With or without reclock)
i also experienced two lockups in the movie , this forcing me to restart mediaportal. Have no logs right now but will do some more testing as soon as i have the time.

Have never had any lockups before while watching a movie, im not shure but it could be connected to your fix. but as i said i need to do some more testing .

have tried some different bluray rips (Flac audio decoded with MADFLAC) and all of them seems to still have syncissues at 24hz with the fix( better than without the fix though ).

will do a clean install of win7 / mediaportal and your dlls and do some more testing over the weekend.


I am also having problems with extremely jerky playback, this until i minimize mediaportal, then its gone. im not shure but i think the problem is that the video changes to 24hz (from menu 60hz) reclock reports 24hz but somehow i think mediaportal is still displaying its windows at 60hz (but the video at 24hz)

while only playing 24fps movies the problem will not show again, but as soon as i play a 30fps movie (the refreshrate changes to 60, reclock turns green and reports 60hz ) but, jerky playback. same thing here video played at 30fps and refreshrate is 60hz, but somehow mediaportal still outputs 24 fps.

Minimize mediaportal, and refocus, voila problem gone.

Thanks!
Best regards

 

[Seeco]

anvandarnamn: About your sync issues - are they the same as before? That is, does the sync progressively get worse, or do you have a constant amount of audio-video lag?

 

[technick]

For your information, I test this on my Vista :

You download this http://download.microsoft.com/downl...form Update for Windows Vista_Beta.cmd.remove (CMD Platform Update for Windows Vista)
You rename it to .cmd
You execute it
You lauch windows update : you need the update "Platform Update for Windows Vista" (kB971644)
(I make all updates, IE8, etc.. exept hardware drivers : My computer reboot 4 time with a error one time)
You can after install DirectX 11 on Vista ;-)

I don't know why but now Dynamic Refresh Rate work again (?!)

I also change this:
MP Priority : Above Normal
MP Thumbnails : Auto create off (take 40 % UC sometime)
TV Service priority : High
On the Haali Media Splitter : Boost ON / Input buffer size 65536

I test many videos on DVD & HD.... This and the Scythe42 DLL : better than my PS3 ! I have absolutly no default on Videos. It's PERFECT (with upscale).

If someone want try... (Don't forget that i use real 24hz sync on screen -Dynamic Refresh Rate- )

 

[Scythe42]

Great news. Thanks for your testing effort! Time for the next enhancement I guess...

Maybe the update was auto installed on my system as I couldn't reproduce the refresh changing problem with batch files on my installation so far. I let Windows Update update anything on my system, including the drivers as I normally don't update them manually (unless I have a specific issue). Yeah, I'm lazy...

PS: Need to try your Haali Splitter suggestion. Never made any adjustments there.

 

[tourettes]

PS: Need to try your Haali Splitter suggestion. Never made any adjustments there.

Good point, it might even help with the late frames we are seeing with some specific video encodes.

 

[Seeco]

Technik: And I've got the usual question for you The Haali setting sounds interesting, but what does it do?

 

[CHli]

My guess is :

Boost ON : Change the priority of the internal thread to above normal
Input Buffer : Increase the size of the amount of data that can be buffered (read in advance). This would make sure that the splitter never get any starvation waiting for data to arrive.

 

[Scythe42]

PS: Need to try your Haali Splitter suggestion. Never made any adjustments there.

Good point, it might even help with the late frames we are seeing with some specific video encodes.

Makes no difference on my rig with the usual test file as the source for late frames are not caused by a starving splitter or I would have seen some improvement with a larger buffer. One down, many to go....

 

[johan_80]

Here are some logs from my tests.

1. Sometimes when changing from one 23.976fps movie to another. The second file will not play. Just a blank (black) screen and no audio.

2. Watch a 23.976fps movie and then load a 29.97fps (interlaced) movie. After the refresh rate change is done you will sometimes get a major stutter. The same thing can happend the other way around (watch a 29.97fps (interlaced) movie and then load a 23.976fps movie)

To get stutter free playback again you have to minimize MediaPortal and interact with a window (like explorer) and then go back to MediaPortal.




Windows 7 32-bit
C2D 3Ghz
4GB
nvidia 8600GTS (also tested with nvidia 9600)