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2nd April 2018, 16:09 | #50001 | Link | |
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There may be a bottleneck with your GPU (only 8 lanes) combined with a lack of PCIe express bandwidth (v2.0 or lower) in copy-back mode. I've run into one other user with this problem. I don't know how he installed his graphics card. He may have installed it in a x4 slot. Native and copy-back shouldn't have radically different performance.
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players Last edited by Warner306; 2nd April 2018 at 16:17. |
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2nd April 2018, 18:14 | #50002 | Link |
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Fascinating. With JRiver's video option turned on my issues went away using PCM. I think it's similar to how ReClock works afaik. In any case I've watched a few movies now with this setup and it's working extremely well for me.
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HTPC: Windows 11, AMD 5900X, RTX 3080, Pioneer Elite VSX-LX303, LG G2 77" OLED |
2nd April 2018, 19:15 | #50003 | Link | |
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For now i droped reclock and im checking internal wasapi in mpc hc, after few quick checks i didnt notice any difference between PCM and bitsream with wasapi, but tbh i didnt had time to watch movie from start to end, i just base my opinion on switching movie to FSE and compare frame repeat time, in both situation it's oscilate around same time. |
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2nd April 2018, 21:08 | #50004 | Link | |
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madVR - high quality video renderer (GPU assisted)
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Thanks. I’m back to DXVA2 copy-back, works flawlessly. My GTX 1080 is plugged in a very old motherboard (X58 chipset, PCIe 2.0) so it makes sense. MB upgrade is scheduled but not a priority ATM. |
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2nd April 2018, 21:25 | #50005 | Link |
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Motherboard upgrade shouldn't change anything to D3D11 Native problems. Sounds like an NVIDIA driver issue.
Can't you use the previous driver? What's your OS? If it's Windows 10 you could also try Windowed D3D11 presentation mode, I've never had any issue with it and a 1050 Ti even when using D3D11 Native decoding in LAV at the same time. Native D3D11 is nice for 4K (as long as you don't use black bar detection) because it gives you better performance than DXVA2 Copyback without the lower chroma quality of DXVA2 Native.
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HTPC: Windows 10 22H2, MediaPortal 1, LAV Filters/ReClock/madVR. DVB-C TV, Panasonic GT60, Denon 2310, Core 2 Duo E7400 oc'd, GeForce 1050 Ti 536.40 |
2nd April 2018, 22:00 | #50006 | Link | |
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So why doesn't D3D11 copy-back work for him? It sounds like a bandwidth problem but DVXA2 copy-back works fine. Native doesn't seem to be selecting his GPU, but the two copy-back modes are wildly-different.
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players Last edited by Warner306; 2nd April 2018 at 22:10. |
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2nd April 2018, 23:07 | #50008 | Link | |
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The improvements might be even better if madshi rewrites madVR in D3D11 eventually (its primarily still D3D9 on the inside). Only on 8.1 or 10. Not on 7.
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LAV Filters - open source ffmpeg based media splitter and decoders Last edited by nevcairiel; 2nd April 2018 at 23:23. |
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3rd April 2018, 00:24 | #50009 | Link | |
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Quote:
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HTPC: Windows 11, AMD 5900X, RTX 3080, Pioneer Elite VSX-LX303, LG G2 77" OLED |
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3rd April 2018, 01:01 | #50010 | Link | |
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And what kind of CPU/RAM combination fails at copy-back with adequate VRAM? I thought it had to be an issue with PCIe speed with the GPU having to transfer so much data back-and-forth, rapidly? Some modern CPUs are not up to the task?
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players |
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3rd April 2018, 01:27 | #50011 | Link |
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Hello,
I am using MPC-HC, madVR and LAV filters for my HTPC (iGPU HD 630). I have disabled all image correction settings in Intel drivers. Setting decoding to D3D11 native result in an average rendering time of 25ms, mostly stable even with light scaling settings. Using D3D9, average rendering was much better (5ms) but with max rendering time > 25ms. Should I have a faster rendering with D3D11? I have not been able to watch "The world in HDR" 4K 60fps 10bit demo: http://4kmedia.org/the-world-in-hdr-uhd-4k-demo/ Even using bilinear scaling, on my 1080p TV the rendering is very slow. I tried with EVR, the video is smooth but HDR is not converted to SDR. Maybe the madVR HDR>SDR conversion is too heavy to be handled by the iGPU? Using the HDMI port on Intel iGPU does not allow to output 10bit because the drivers always dither to 8bit (I checked that with my AVR reporting 4:4:4 8bit signal). https://www.intel.com/content/dam/ww...hics-paper.pdf Could we have an option in madVR to force 12bit output? Thank you very much. |
3rd April 2018, 01:38 | #50012 | Link |
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No, you should not have faster rendering with D3D11 than D3D9.
Yes, others have also reported that the 630 is too slow for good quality HDR to SDR. Have you tried changing madVR's HDR options? madVR will not be able to force the output bit depth, the GPU has to be the one in control.
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madVR options explained Last edited by Asmodian; 3rd April 2018 at 01:41. |
3rd April 2018, 01:58 | #50013 | Link |
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just a quick question...(yeah, i know kinda strange question but i want to make an icon for MadVR, so i need some input)
I just wanted to ask, what does teh "VR" stand for in MadVR? I want to make an ICON for MadVR and teh Media Player using it, i thought it would have a nice touch to it, seeing it in the taskbar and teh player icon.. And to be honest, the VR reminds me to much of "Virtual Reality" so i wanted to know what it stands for.. its just an non related question, haha..But it would help ,me on the icon. THX, and greetings... Keep it up madshi and HAPPY EASTERN!!! |
3rd April 2018, 02:06 | #50014 | Link | |
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3rd April 2018, 02:18 | #50015 | Link |
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Video Renderer
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madVR options explained |
3rd April 2018, 10:05 | #50016 | Link |
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By the way, which madVR options can I use to reduce GPU memory usage? I assume the GPU queue size is relevant and the number of frames to be presented in advance, but what about "trade quality for performance" options? Does "store custom pixel shader results in 16bit buffer instead of 32bit" help a lot?
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Test patterns: Grayscale yuv444p16le perceptually spaced gradient v2.1 (8-bit version), Multicolor yuv444p16le perceptually spaced gradient v2.1 (8-bit version) |
3rd April 2018, 12:11 | #50018 | Link |
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New issue just popped up for me. Whenever I play a video and fullscreen it (exclusive fullscreen enabled), there's a ~3 second stutter, then it plays for half a second followed by another ~3 second stutter. Audio/Video is still playing in real time, as it just skips ahead after. Happens even on an SSD, and disabling exclusive fullscreen fixes it but then I can't get 3D/HDR correctly.
Only thing I can think of is I upgraded to Win10 Spring Creative Update which went RTM a few days ago. |
3rd April 2018, 14:07 | #50020 | Link |
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Sadly, no go. Spring Update hits either today or next tuesday, so if it's caused by that we're gonna see posts soon. I don't believe I changed anything other than that.
Last edited by tyrindor; 3rd April 2018 at 14:12. |
Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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