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20th June 2017, 17:34 | #44141 | Link |
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Hi, I enabled "10 bit (or higher) in MadVR last night since my new Vizio TV supports a 10bit input and I've got some 10bit source materials. I've also set my Nvidia GTX1080 to output yCbCr 4:2:2 with 10bpc. Couple of questions...
1. Is it normal to take 10-15 seconds to switch in and out of fullscreen exclusive mode when using 10bit in Madvr? Also, during the 10-15s switch, the screen is displaying a full screen of snow with varying colors. Switching MadVR back to "8 bit" fixes this issue. Is this how it is or is there some configuration I'm not setting correctly? 2. In the thread by James Freeman regarding 10 bit output, he states that Nvidia should be set to output 8 bpc instead of 10 because of some errors introduced. Is this still the case? 3. Anyhow, is it still in my best interest to use MadVR/TV Levels, Nvidia/RGB 8bpc Full range, and TV/Limited to avoid unnecessary levels conversion? Or is the quality of the conversion in the new Nvidia video cards good enough that one can use the limited YCbCr modes without quality issues? Thanks |
20th June 2017, 19:44 | #44143 | Link | |
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[Cynical edit] I forgot jokes and sarcasm require /s or /j nowadays so just adding /j to the screenie part. Last edited by YxP; 20th June 2017 at 20:09. |
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20th June 2017, 21:41 | #44144 | Link | |
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I'm certain my Vizio P75-C1 is a 10bit native panel. And what price are you talking about? |
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20th June 2017, 22:01 | #44145 | Link |
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Just the screenie If you have native 10bit then that might be ok, but MadVR might still make the benefit almost imperceptible.
[let's edit again edit] The price you pay if you really have to wait 10-15s. I'm sorry I really should stop editing my posts and/or just maybe not post at all. Last edited by YxP; 20th June 2017 at 23:08. |
21st June 2017, 10:02 | #44146 | Link |
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I'm not sure if this has been answered. It seems I can't find it in this thread.
I'm having problem in PERMANENTLY setting the BRIGHTNESS to -15. Once I have changed it to -15 it just won't stick. It resets back to 0 once a new video is played. Is there a way to permanently set it to -15?
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21st June 2017, 12:05 | #44148 | Link |
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I'm pretty sure the brightness is a per-video thing. One thing you can do is change the name of the directory containing the video files to include "brightness=-15" (without the quotes).
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21st June 2017, 12:40 | #44149 | Link | |
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Is there a way to automatically apply this? If you check the brightness setting while playing a video, you would always see "0" regardless if change was made in the setting
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21st June 2017, 12:46 | #44150 | Link | |
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21st June 2017, 13:00 | #44151 | Link |
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Yeah, if you have to lower the brightness on every video then you'd probably be better off adjusting your display.
As far as I know the only way to apply the setting every time is to tag individual videos, or the directory containing the files (e.g. in case you have a series of videos that all need the same adjustment). Changing the filenames this way isn't pretty to look at, but it works.
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21st June 2017, 17:02 | #44152 | Link |
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I am not sure if this is a MadVR issue or (more likely) an issue with my GPU (Nvidia 950). I'm trying out HEVC UHD demos (hardware decoding) and at specific points the queues just drop to 0 and I get a massive amount of dropped frames. It happens at the same points every time. Increasing queue sizes helped a little, and also pausing for a second and then unpausing can sometimes refill the queues. Could this be a GPU memory issue? (only has 2gb). Or maybe something else? Really not sure what could cause it. 1080p and lower all play perfectly.
Last edited by iSeries; 21st June 2017 at 17:50. |
21st June 2017, 17:53 | #44153 | Link | |
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Your GPU most likely can't decode frames fast enough. Look at the rendering frame times in the OSD (Ctrl+J) and see if the rendering/total processing time is close to or greater than the content's frame duration (24 fps would be 41.6ms). I have a 950 myself and it can do everything but decode 60fps UHD HEVC and remap HDR to SDR at the same time. Render times shoot up higher than the frame duration. On a related note, a GT 1030 is not fast enough to decode 24fps UHD HEVC and handle HDR (either passing it directly or remapping it to SDR with a shader). If anyone is considering it, don't bother. |
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21st June 2017, 18:15 | #44154 | Link | |
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ProgDVB deinterlacing problem
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Here's a screenshot GPU deinterlacing is definitely working, no combing whatsoever as in your screenshot. I left madVR at its default settings. I may be wrong, but could madVR + GPU deinterlacing be too much for your graphics card? Have you tried with EVR just to see if deinterlacing works without madVR? Have you tried lowering madVR processing quality? EDIT: I see your average processing time is ~23 ms. 50i video deinterlaces to 50 fps, not 25, so it means 20 ms per frame. I think it's likely your GPU has no processing resources left to deinterlace in addition to madVR processing. I know Radeons at some point had a 'feature' that disabled some video processing options if the GPU was maxxed out, I don't know much about NVIDIA GPUs yet but could it be that's what happening?
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21st June 2017, 18:42 | #44155 | Link | |
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Last edited by iSeries; 21st June 2017 at 18:47. |
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21st June 2017, 18:52 | #44157 | Link | |
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That's not the case. I can do GPU deinterlacing and decoding with LAV and madVR processing without framedrops. Also I highly doubt that lack of processing power would result in deinterlacing not working at all, it would result in framedrops. Indeed it would be deinterlaced to 50fps, if deinterlacing would work. (The video shows up as 50fps when deinterlaced with LAV) (Also you seem to have shared a (mostly) static image which of course won't show combing. Try sports or such) |
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21st June 2017, 20:52 | #44158 | Link | |
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Quote:
Did you try EVR or EVR custom in ProgDVB just to check if deinterlacing works with it? That could help narrow down the problem.
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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 |
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21st June 2017, 21:07 | #44160 | Link | |
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Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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