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15th April 2015, 13:33 | #28963 | Link |
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Confirmed this green artifact with NNEDI 3 chroma upscaling and double/quadrouble Chroma resolution; darker screen (look like scanlines) with double/quadruple Luma resolution even with the newest 15.4 beta driver. These issues only occurred with MadVR 64 bit, my VGA card is R9 290X and in Windows 8.1 environment.
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15th April 2015, 13:39 | #28964 | Link |
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Hi Guys,
my intent is to identify the best graphic card to use with MadVR and outputting a 2160p signal to a UHD TV. I don't know if there is a specific thread about this.... My fisrt question is: 1)If we set the pc to output a RGB 4:4:4 2160p@24hz signal (in the control panel of the grapich card drivers) there is differences in the quality of the signal if we use an AMD card (with HDMI 1.4 I suppose) and a NVIDIA GTX970 (with HDMI 2.0 I suppose)? In other words may be that the AMD cards do some kind of downsampling? 2)I know that madVR can support displays with panels higher of 10bit. Is It possible to know if a TV is capable to accept and represent a 12bit signal from a HTPC? There is a method to know If a UHD TV is capable to accept signals @8/10/12bit? MadVR is capable to report this info? thank you all |
15th April 2015, 13:46 | #28966 | Link | |
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first of all madVR always does 4:2:0 -> 4:4:4 first that would be the first chroma resize step and that is was chroma upscaling does and nothing more. when image doubling is used without chroma the chroma doesn't match the luma anymore and the image upscaler or down scaler is used to fix this. have a look here: http://forum.doom9.org/showthread.php?t=171787 even advanced user may found something new here. |
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15th April 2015, 13:53 | #28967 | Link | ||
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for 10 bit a fullscreen directx 10 or newer surface is needed. the high quality dither makes up for this for now. the current version can't do that. and it's not known what current driver do with a 10 bit input signal but it's know that they can output 1080p in up to 12 bit. if you don't get dropped, repeated or delayed frames everything should be 100% fine with windowed mode. Last edited by huhn; 15th April 2015 at 14:28. |
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15th April 2015, 14:05 | #28968 | Link | |
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Anyone else getting frame drops when using 24Hz but not with 60Hz? I've reverted drivers and madVR versions but no change. |
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15th April 2015, 14:09 | #28969 | Link |
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The chroma resizer is only ever used for the 420->444 step, since its probably somewhat specialized for a clean 2x upscale. All other scaling is done with the image resizer.
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LAV Filters - open source ffmpeg based media splitter and decoders |
15th April 2015, 14:21 | #28971 | Link | |
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how to use nnedi3 chroma on something that isn't x2? they are specialized in 2x resizing how do you special general resizing? |
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15th April 2015, 14:27 | #28972 | Link | |||
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if you are on windows 7 are you sure you haven't broken the desktop composition? happen to me all the time... can you make a screen? sorry i kinda repeat my self here from the last post. happens i guess. |
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15th April 2015, 15:30 | #28973 | Link | |
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Unless you have an actual problem, just accept how it works internally? madshi probably put some thought into how it would work best.
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LAV Filters - open source ffmpeg based media splitter and decoders |
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15th April 2015, 18:26 | #28974 | Link | |||
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15th April 2015, 19:06 | #28975 | Link | |
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It would be cleaner from a DirectShow architecture perspective to have madVR provide the DirectShow clock for Reclock, because as a video renderer, it's madVR's job to know the screen's refresh rate. Therefore, if you want to slave the audio clock to the video clock, then it's better to have the video renderer provide the clock, and then slave the (resampling) audio renderer to that clock. That said, I'm mostly nitpicking here. Assuming Smooth Motion isn't used, and a multiple refresh rate is used, there are two possible scenarios: - You slave the video clock to the audio clock (default case), in which case you get frame drops/repeats; OR - You slave the audio clock to the video clock (Reclock case), in which case you need to resample the audio. You can either get one or the other. There is no free lunch. Unfortunately that's the way it is on computers. Set-top boxes don't have this problem because they have the same hardware clock for both video and audio. |
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15th April 2015, 19:35 | #28976 | Link | |
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Frame repeats are also highly exaggerated. |
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15th April 2015, 20:27 | #28977 | Link |
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Of course, that's what I meant. As I said, it's impossible to get an exact multiple anyway, because that would mean using the same clock, which is not possible on a PC. I guess I failed to mention the case where you can get so close that it doesn't really matter, but you need to do a lot of tinkering and trial&error to get to that point.
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15th April 2015, 21:16 | #28978 | Link | ||
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how to frame interoplate a blended frame? of cause you can use it with SVP but for a simple reason. SVP runs before SM.
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i'm 99% sure i can find the SM using display in a blind test and that in a short time. |
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15th April 2015, 21:40 | #28979 | Link | |
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Where does madVR save freeze reports? I can't find them, trying to make one because it freezed again. Found them on my desktop... Silly me =)
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Last edited by flashmozzg; 15th April 2015 at 21:50. |
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15th April 2015, 22:03 | #28980 | Link | |
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I use the latest MPC-HC 1.7.8 x86, ReClock 1.8.8.4 x86, madVR 0.87.21 (reset older version to default and properly uninstalled, then installed new version and reset to defaults) and the latest LAV Filters 0.64. My LAV Video filter uses nVidia CUVID (for all 9 boxes underneath), Enabled Adaptive H/W Interlacing for 25/30p Films with High Quality Processing. The rest is default. I use high quality settings: - Rec.709 3DLUT (ArgyllCMS 1.7.0 non-buggy Beta dev. release + dispcalGUI 2.9.0.7 Beta) - Reduce Banding Artifacts = enabled for lower quality videos - Chroma Upscaling = NNEDI3 64 neurons - Image Doubling and Quadrupling (both Luma and Chroma) = "Always, If Upscaling Needed" = 32 neurons for each of 4 boxes - Image Upscaling = Jinc 3 tap + "Activate Anti-Ringing Filter" - Image Downsaling = Catmull-Rom with "Activate Anti-Ringing Filter" & "Scaling in Linear Light" - Smooth Motion = Off - Dithering = Error Diffusion - Option 1, Use Colored Noise = NOT selected/ticked, Change Dither for Every Frame = NOT selected/ticked - Trade Quality for Performance = all boxes are UN-ticked - The rest = default (aside from FSE) Framerate drops occur in H.264 .MKV films recorded @ 1080p with high quality. My rig specs are in my sig (3770K @ 4.8Ghz, GTX 980 4GB, 1080p monitor, SSD, Windows 8.1). Of course I would get rid of framerate drop by reducing NNEDI3 from 64 neurons to 32 neurons, but that is not a solution because when FSE is not enabled, no frames are dropped with NNEDI3 set to 64 neurons. Its no big deal, but I am just curious. I figured FSE would actually be better as far frame dropping goes... Last edited by XMonarchY; 15th April 2015 at 22:07. |
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Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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