madVR - high quality video renderer (GPU assisted)

[THX-UltraII]

Originally Posted by rahzel

Did these issues happen before your made a custom resolution?

Seems like a few others received this message, too.

Maybe if you post a log, madshi can help you.

I ll check this tonight. Did a clean W7 install to be sure and going to see what happens with the standard settings without a custom res/refresh rate. After this I will make a custom res/refresh to see if that is the problem.

How do I post a log?

[rahzel]

I had to do it before, but I forget exactly how. I think you just run debug mode (there's an activation in the madvr folder), play 10-20 seconds of a clip, close your media player and it will post a log file.

[ryrynz]

Correct, the log will be there on your desktop, the shorter the log the better. Don't upload to Doom9 and remember to compress it.
Change back to standard mode once done.

[cremor]

Originally Posted by Thunderbolt8

so whats the way to find out whether a movie has been recorded with 24 or 23.976 fps?

As far as I know, all cinema movies are recored with 24 fps and are just slowed down to 23.976 for some NTSC compatibility reasons. Direct-to-video releases and television shows might be 23.976 natively, don't know about that.

[06_taro]

10-bit 4:2:2 sample:
BBB422p10-rr3.rar

Has anyone reproduced the crash decoding this file with madVR's internal libav?

[pacemaker1000]

HELP!

just changed from ATI to NVIDIA GT 430 and playback has gone jerky!
i have tried custom resolutions but cannot get 23.976 spot on
Plus, after creating a custom Resolution i cant set the desktop at 50hz and get MadVR to switch for me

beginning to regret moving to Nvidia

[dansrfe]

madshi can you look into playing files with firefox open in the background. Apparently that seems to be the problem with the dropped and delayed frames due to the queues not filling up.

[rahzel]

doesn't firefox (or any modern browser) use hardware acceleration? maybe that's the cause of the issue.

[Plutotype]

Originally Posted by dansrfe

madshi can you look into playing files with firefox open in the background. Apparently that seems to be the problem with the dropped and delayed frames due to the queues not filling up.

Hi Dansrfe,

Yesterday I overclocked my HD5670, but only in terms of increasing the minimum core and memory clocks so that it never downclocks hard. Played movie and some concert through it in full lenght ( Sony Bravia @23Hz ). Results: movie 150 min - 0 frame drops, concert 1 frame drop in 100min lenght. Need to test movies, where long slow scenes are changing with action panning scenes.
0.77, Lavfilters 0.38RC, MPC-HC latest, Reclock, 11.10RC3 CCC.

I have presentation queues 8-8/8 with occasional change to 7-8/8 when using PC Monitor ( DELL U2311H ). When switching to Sony Bravia, I get only 6-7/8, but looked stable. Will test more on monday.

Pluto

[THX-UltraII]

Originally Posted by pacemaker1000

HELP!

just changed from ATI to NVIDIA GT 430 and playback has gone jerky!
i have tried custom resolutions but cannot get 23.976 spot on
Plus, after creating a custom Resolution i cant set the desktop at 50hz and get MadVR to switch for me

beginning to regret moving to Nvidia

Also made this switch and ATI was way more accurate. With ATI I got max 3 dropped frames during a movie with the standard 23Hz ATI setting. With NVIDIA the 23Hz setting is something around 23,971xx. Changing it with the Custom Resoltion settings in the NVIDIA control panel results in 23,97495 which is the closest to 23,976. This results in a dropped frame every 8-10 minutes which does not satisfy me. Going back to ATI is no option for me because I want CUVID hardware decoding with LAV.

@Rahzel:
And the Presentation Glitches I had are gone after a fresh install of W7, also with a custom made resolution I don t have problems anymore. Maybe it has something to do with XBMC running in the background which I haven t installed yet on my fresh W7 install but I ll test this later today.

[ryrynz]

Hmm, I'm just now making the switch to a 550 Ti for this exact same reason.. I really want that LAV CUVID decoding to free up some CPU for more Avisynth post processing.

[THX-UltraII]

Originally Posted by ryrynz

Hmm, I'm just now making the switch to a 550 Ti for this exact same reason.. I really want that LAV CUVID decoding to free up some CPU for more Avisynth post processing.

Same reason why I switched (want to use a frame interpolation script that uses heavy cpu and CUVID with Nvidia saves a lot of cpu) but it looks like ATI is the better choise for 'dropped-frame-free' playback while bitstreaming.

I know we will get answers from users that swear by htpc audio decoding and reclock use but I need bitstreaming so that s not an option for me

[nevcairiel]

If you setup a good custom resolution, you can get perfect playback. With ATI you may have a better out-of-the-box setup, however if thats not good for you, you have no way to adjust it. Take your pick.

[THX-UltraII]

Originally Posted by nevcairiel

If you setup a good custom resolution, you can get perfect playback. With ATI you may have a better out-of-the-box setup, however if thats not good for you, you have no way to adjust it. Take your pick.

that s the problem: I can t get a custom resolution with perfect playback. Choosing 23,976 gives a actualy refresh rate of 23,97495 (reported my madVR). Strange thing is that 23,977 gives the exact same reported refresh rate by madVR. Choosing 23,978 as custom resolution/refresh rate in the nvidia control panel results in 23,978xx reported by madVR. The best I can get is choosing 23,976 in nvidia which gives me a '1 frame dropped every 8,30 minutes' while ATI reported 1 frame dropped every 16-20 hours!.

[Thunderbolt8]

is that what the OSD says or the actual dropped frame count? in the end, there might be a difference between those two.

[nevcairiel]

Originally Posted by THX-UltraII

that s the problem: I can t get a custom resolution with perfect playback. Choosing 23,976 gives a actualy refresh rate of 23,97495 (reported my madVR). Strange thing is that 23,977 gives the exact same reported refresh rate by madVR. Choosing 23,978 as custom resolution/refresh rate in the nvidia control panel results in 23,978xx reported by madVR. The best I can get is choosing 23,976 in nvidia which gives me a '1 frame dropped every 8,30 minutes' while ATI reported 1 frame dropped every 16-20 hours!.

The refresh rate isn't the only value you can change.

Also, like Thunderbolt8 says, don't trust madVRs estimate. Watch some movie and see if there really are frame drops.

[THX-UltraII]

Originally Posted by Thunderbolt8

is that what the OSD says or the actual dropped frame count? in the end, there might be a difference between those two.

that s what the OSD says at 'one frame dropped every.....'. Haven t tested what the actual dropped frames count is during a 2 hour movie.

[THX-UltraII]

The refresh rate isn't the only value you can change.

I see that there are option like Front Porch, Sync Width, Total Pixels and Polarity that I can change. Is this going to make a difference? If so, can you help me on the way what of those values to change?

Also, like Thunderbolt8 says, don't trust madVRs estimate. Watch some movie and see if there really are frame drops

I ll test this this weekend, thxz

[nevcairiel]

Originally Posted by THX-UltraII

I see that there are option like Front Porch, Sync Width, Total Pixels and Polarity that I can change. Is this going to make a difference? If so, can you help me on the way what of those values to change?

Try increasing or lowering the total vertical pixels. But do it only one or two at a time, those settings can have varying effects.

[THX-UltraII]

Originally Posted by nevcairiel

Try increasing or lowering the total vertical pixels. But do it only one or two at a time, those settings can have varying effects.

I did some testing:

Changing it and LOWERING it from 1125 (which was the standard value in my nvidia settings) to eg. 1120 resulted in heavy stuttering.

Changing it from 1125 to 1130 gave my no stutter and resulted in a refresh rate reported by madVR from 23,97480 to 23,97487. So I changed it from 1125 to 1160 and madVR reports 23,97560 which is already much better. Going above 1160 results in a blank/blue screen (JVC RS25 projector) so getting to 23,97600 is not possible this way it seems. Second problem is that my screen does not 'fit' anymore: my taskbar is almost gone with 1160 now and the top of my screen is not filled.