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19th October 2015, 14:21 | #33741 | Link |
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frame drops despite low render times
I'm getting about 10-20 frame drops (reported) per min on my HTPC (specs below) despite low render times (10-20ms depending on scaling factor).
Queues are all full and OSD does not predict any frame drops (it just says something like "1 frame repeat every 16 hours etc). This occurs on both nnedi3 and super-xbr, as well as with just jinc upscaling. I tested both 10-bit and 8-bit output and the problem is there in both cases. My settings are:
Any ideas what I could do to fix this?
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HTPC: Intel Core i7 2700K, 16GB DDR3 1833, GTX 660Ti, Samsung SSD860, Asus z77, PCIe 3.0 Desktop: AMD Ryzen 3700x, 16GB DDR4, 1TB NVME SSD, Asus x570 Tuf Gaming, Nvidia RTX 2060. |
19th October 2015, 16:24 | #33743 | Link |
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When I pause a video I can see that the image goes back a few frames.
I noticed this while presenting 8 frames in advance. Setting it down to 1 helps tremendously but sometimes I can still see this glitch. If I completely disable the presentation of frames in advance the problem is persists and is unmitigated. In this case changing the number of backbuffers doesn't seem to do anything. I'm avoiding additional details about my setup on purpose, to keep down the noise. If you need more info ask away. |
19th October 2015, 17:11 | #33744 | Link | |
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Quote:
Or since I can output 10 bit, perhaps I could also disable debanding as a worst case...
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HTPC: Intel Core i7 2700K, 16GB DDR3 1833, GTX 660Ti, Samsung SSD860, Asus z77, PCIe 3.0 Desktop: AMD Ryzen 3700x, 16GB DDR4, 1TB NVME SSD, Asus x570 Tuf Gaming, Nvidia RTX 2060. |
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19th October 2015, 18:52 | #33747 | Link |
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madshi, thanks for the answer.
So, this means that at least when watching progressive material, there is no lossy conversion process affecting chroma. Too bad that as soon as DXVA deinterlacing gets activated, one still gets the lossy conversion, even when using DXVA copyback. DXVA copyback is not the hardware accelerated solution that gives the best quality in all cases like suggested in the posts above then. Software deinterlacing using Yadif is not up to par to DXVA deinterlacing so this is a no go, and hardware deinterlacing with QS is broken in some cases. From all these options, I guess QS has the best chances of ending up as a working solution. I'll bother nevcariel in his thread with samples where QS deinterlacing breaks then, maybe something can be done about it. |
19th October 2015, 18:59 | #33748 | Link |
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Don't bother, QS is an external component and I have no interest in fixing code that I didn't even write.
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LAV Filters - open source ffmpeg based media splitter and decoders |
19th October 2015, 19:47 | #33749 | Link |
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Noted, thank you. I was aware in retrospect, but somehow got confused. I think because of native 10-bit content not suffering from banding as much as 8-bit...
That completely solved the problem, many thanks!
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19th October 2015, 21:58 | #33750 | Link |
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Another option is to set both debanding settings to the same level; this disables fade detection entirely which also improves debanding performance slightly.
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madVR options explained |
20th October 2015, 04:17 | #33751 | Link |
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Is Catmull-Rom messed up for anyone else after image doubling (super-xbr or NNEDI3)? This is on v0.89.11, but I haven't been testing every new build.
On the latest build, Win10 x64, GT 650M/HD 4000 Optimus. It should be obvious here (applies to any video but clear enough when working with something very low res): http://screenshotcomparison.com/comparison/147572 Catmull-Rom and Bicubic 50 should be the same thing, right? |
20th October 2015, 04:48 | #33752 | Link |
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I have an interesting, though probably not that unusual, requirement for managing zoom control and aspect ratios.
What I’m basically looking for, is a way of setting up profiles in madVR to automatically achieve the result that I’m looking for; any suggestions would be very much appreciated. 99.9% of the content I watch is Blu-ray content, which has black bars embedded in the video stream itself, and has a stream aspect ratio of 1920 x 1080. Having said that, there are several different aspect ratio cases commonly seen with Blu-ray content:
I would like madVR to behaving in the following way for each of the 5 content types (My projector setting in parenthesis):
I totally understand the reason that the zoom control works the way that it does, but I'm finding it difficult to setup rules and configurations that consistently achieve the desired effect for the content that I have. This isn't a complaint, I'm just wondering if there is a better way to do what I'm trying to do. Last edited by Nezil; 20th October 2015 at 04:53. |
20th October 2015, 10:45 | #33754 | Link | |
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Quote:
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20th October 2015, 10:46 | #33755 | Link | |
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Quote:
Then you'll have to play with the settings yourself.
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20th October 2015, 11:13 | #33758 | Link |
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0.89.10 was severly broken, and there was only a single fix in 0.89.11 to fix that problem in .10, so there is no reason to test .10 for anything.
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LAV Filters - open source ffmpeg based media splitter and decoders |
20th October 2015, 11:31 | #33759 | Link |
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According to his words, test1 is the highest risk, meaning that it's the farest from 89.9.
But it works well with me, and it's showing 89.10. I never have a test for 89.10 release. If I now turn to use 89.11, com will be fully freezed immed, again. Then the problem is between test1(89.10) and 89.11. Last edited by nijiko; 20th October 2015 at 11:44. Reason: fix words |
20th October 2015, 12:26 | #33760 | Link |
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Hey guys,
I'm trying to find the best madVR configuration on my HTPC. I read a lot "madvr guides" and now I want to ask if someone could give me some suggestions for my system. Syszem specs: i5 4590, 16GB DDR3 RAM, GTX970, Win 8.1 mainly used to upscale 1080p mkv to my 4K UHD OLED TV. my settings atm: artificial removing: default: low / during fade: high chroma upscaling: NEEDI3, 16N image downscaling: CR with AR and LL image doubling: double luma if factor is 2.0x with NEEDI3, 32N, and double chroma with 2.0x and NEEDI3 16N image upscaling: Jinc AR Refinement: SuperRes St:3, sh:2, rad:066, once after upscaling ist complete general: I use FSE and D3D11 Dithering: Ordered Dithering with cn and change dither every frame trade quality for performance: "dont render frames when fade in out ist detected" is checked With these settings i get 38ms and 1080p video upscaled to UHD without glitches and stuttering. Does anyone see any settings which could be changed for better quality? or any ideas of chaning settings? the guy in this guide http://wiki.mikejung.biz/MadVR#DXVA2_Focused_2 uses DXVA under imageupscaling and downscaling and therefor using higher Neurons under doubling and chroma. what do you think about that? Any suggestions for different settings than mine for 4K upsacling are welcome!
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Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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