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7th February 2012, 02:34 | #12001 | Link | |
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Windowed mode or the new full screen mode don't have this problem at all. I can't recall when it started happening though... Switching to JRiver? updating nVidia drivers? updating madVR/LAV?... |
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7th February 2012, 15:30 | #12002 | Link | |
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But I tried a Lord of the rings remux and everything seemed fine. Using MPC HC and its internal audio decoder, LAV Video Decoder and Splitter. With my usual test samples I haven't encountered any problem either until now. |
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7th February 2012, 15:30 | #12003 | Link |
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I experience no noticeable lip sync issues with FSE (old path) here, so maybe it's an Nvidia thing same as the high presentation glitches which affects Nvidia users.
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7th February 2012, 17:09 | #12005 | Link |
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I'm not too sure now... I had the issue then closed JRiver opened MPC and played the same file and... no issue. I then went back to JRiver and enabled the option to "play silence at startup for hardware synchronisation" and it seems to have helped (along with the "delay playback until queue is full" in madVR). Wonder if it has anything to do with my monitor being super slow to switch resolution/refresh rate (needs like almost a full second).
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7th February 2012, 19:00 | #12006 | Link |
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Congratulations to the developer for this piece of work. I've just tried out this madVR, but there are things I don't get or understand so well.
I have an AMD HD6950, and a 24p capable plasma. Im willing to smooth perfect playback, judder free and no frames dropped. I set GPU signal out to 23Hz (23.976) and try with a 23.976fps video, with MPC-HD. I press Ctrl+J to get rendering info and, here comes what baffles me out; display refresh = 23.97315 (sometimes 23.97310-2397320) and 1 frame repeated every = ... here starting with hours, then go to days, back to hours, days again...etc. How is that posible?? if you do the math -> 1/(23.976-23.97320)*60 ---> it should be 1 frame dropped about every 6min aprox!! Also, after 40min of playback, the dropped/delayed frames shown yet are 0 both. How the hell is this possible if refresh rate is 23.97320Hz at madVR statistics? its contradictory or am I interpreting that data wrong? Last edited by kerman; 7th February 2012 at 19:24. |
7th February 2012, 21:54 | #12007 | Link |
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Um, possibly dumb question, but you don't happen to be using ReClock, right? Also, a comment, not an answer. That seems way off for what we've seen for AMD cards, which are usually very close to 23.976 (mine is around 23.97590).
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7th February 2012, 22:21 | #12009 | Link |
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Thx; not using reclock, didnt even install it. The point is, at least one of the rendering numbers shown by madvr must be wrong; display refresh or dropped/repeated frames, since math is there.
Last edited by kerman; 7th February 2012 at 22:24. |
8th February 2012, 02:23 | #12010 | Link |
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The refresh rate madVr shows should be very accurate - I believe madshi has said not to put too much faith into the "frame drop/repeat every XXXX minutes/hours/days".
The real test is to check the actual number of dropped frames - if you don't get any, everything is fine.
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8th February 2012, 04:05 | #12011 | Link |
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As for "1 frame repeated every... " I definitely dont understand how it works... it goes from hours to days and get back too fast without apparent sense.
On Display, madVR shows 23.97315 (+- .00010). The maths says that is equivalent to 1 frame lost every 6 min for 23.976 material. No discussion here. As for the "dropped frames", I have a doubt... does it mean "dropped frames" caused for PC performance or playback issues under a specific high tasking demanding on resources?... or is it about the frames dropped becouse the fps-Hz asynchrony mentioned above? (BTW, I have a Q6600@3.60GHz, AMD HD6950 and 8GB RAM. Win7x64 and latest Catalyst drivers 12.1) Last edited by kerman; 8th February 2012 at 04:09. |
8th February 2012, 06:49 | #12012 | Link |
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It means the latter. Can you switch to EVR and see what it reports? Or, you can also install ReClock which will tell you also accurately to the thousandth your refresh rate.
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8th February 2012, 07:22 | #12013 | Link | |
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Likewise, I can force a refresh rate below the frame rate - say 23Hz refresh rate for 59Hz material - and even though all the queues will be full, madVR will report dropped frames. I'm pretty sure it's just the number of dropped frames, regardless of why they were dropped.
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8th February 2012, 07:26 | #12014 | Link |
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Right, it's either, I misread the question. I thought he meant the "dropped/repeated frames every xx seconds" display.
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8th February 2012, 18:44 | #12015 | Link |
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Ok I'll try to help: I believe (not 100% sure) that the "X frame dropped/repeated every X seconds/minutes/hours" has nothing to do with the "dropped/delayed frames" in the stats below. The latter only indicates the amount of abnormal events (like the frames that are dropped and delayed when you switch from windowed to fullscreen exclusive and vice versa).
For example, when I play a 24fps (not 23.976) film on a my monitor at 71.93hz I get one dropped frame every 40 seconds or so (which is perfectly normal as it is the only way of fitting 24fps into 71.93hz) and I can even see it with my own eyes. madVR does indicate "1 frame dropped every 40 second" but the stats below show no dropped frames (unless I switch from windowed to fullscreen or something like that). One thing I also noticed is that the "X framed repeated/dropped" sometimes takes a long time to find the right value (sometimes it will keep changing until it settles on the correct value). |
8th February 2012, 19:27 | #12016 | Link | ||||||||||||||||||||||
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Should be fixed in the next build.
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8th February 2012, 19:28 | #12017 | Link | ||||||||||||||||||||
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But yes, in the long run I'm planning to let madVR watch timestamps and correct the refresh rate if it proves to be wrong. But this is a feature that will take some time to implement (properly), so it won't come very soon. In any way it would help a lot if all splitters and decoders did their very best to try to report the movie framerate as accurately as possible. And ffdshow is currently not doing that. I'll talk to Yamagata about that. Quote:
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DVD playback is not officially supported yet. I'm aware of the Macrovision problem. Honestly, I don't know why DVD playback sometimes works. I thought it wouldn't work at all, in Windows 7. But I haven't really looked into it too much yet. Quote:
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What artifacts would you get from simple blending? |
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8th February 2012, 19:29 | #12018 | Link | ||||||||||||||||||||||
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Sorry, can we move this back another few months?
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What kind of error? Seems to work fine for me. Quote:
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The problem with encoding is that you'd need to move the frames back from GPU RAM to CPU RAM, which isn't very fast at least on AMD machines. Well, maybe fast enough for encoding, but then, is it faster than doing everything on the CPU? I'm not sure... Anyway, for now my focus is on playback, only. Quote:
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2. Does it affect madVR at all? I'm not sure... 3. Application controlled is just fine. Quote:
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Anyway, please reproduce the crash with the next build and send me the resulting crash report. Thx. Quote:
Your queue sizes are quite high. Please try to set the GPU queue size to a lower value. E.g. try 8 or even 6. Maybe that helps? |
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8th February 2012, 19:29 | #12019 | Link | |||||||||||||||||||||||||
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Weird, it doesn't work on my PC, either. Don't know why it works for you!
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I'd suggest disabling all internal source and decoder filters. Quote:
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Probably you're lucky and your audio hardware clock deviates just in the same way from the ideal timing as your video hardware clock does. |
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Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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