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10th April 2013, 14:54 | #18301 | Link |
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Well I think my Vsync issues on XP are a problem related to the Nvidia drivers. Even with latest WHQL drivers, the refresh rate reported by madVR is all over the place, sometimes falling to 57Hz on a 60Hz screen and sometimes jumping into 62 range, and frame drops occur everywhere. I just tested madVR on another machine with Intel HD4000 Ivy Bridge graphics, exact same software setup as my PC and it works flawless, no Vsync issues and I just watched a film with 0 frame drops on it. I guess Nvidia messed something up on XP and 600 series drivers. Interesting fact is that all games, for example have perfect Vsync applied.
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10th April 2013, 18:07 | #18302 | Link | |
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Jokes aside, don't recklessly assume that I was criticizing his behavior of taking breaks silly. That was a simply a comment based on ryrynz guess.
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madVR scaling algorithms chart - based on performance x quality | KCP - A (cute) quality-oriented codec pack |
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10th April 2013, 18:44 | #18303 | Link | ||
I am the one who knocks
Join Date: Aug 2009
Posts: 104
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No, it does not. Playback is smooth with no dropping frames.
It starts to drop ~3 frames per second though when I have a brwoser with hardware acceleration enabled in the background, which by itself causes 2-4% load. Slight overclock would probably take care of that, but afterburner crapped out on me yesterday when I tried to update it so I can't test it right now. Quote:
I know I did A 720p file with 2.35 aspect ratio gives me 24%. Nope... dxva2cb. Why should I use CUVID? Quote:
EDIT: 92-93% with CUVID but still plays smoothly. Last edited by MokrySedeS; 10th April 2013 at 18:56. |
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10th April 2013, 19:24 | #18304 | Link | |
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11th April 2013, 04:53 | #18308 | Link | |
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Posts: 157
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What's interesting though is that it seems only mobile cpus are being shipped with the flagship integrated gpu. Not that the desktop one won't be an improvement on what's currently on offer..but still.. Sent from my Blade S using Tapatalk 2 Last edited by Dodgexander; 11th April 2013 at 04:55. |
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11th April 2013, 05:10 | #18309 | Link |
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Hi madshi, I am a long time user of madVR - thanks for all of your efforts!
I have a GTX 650 Ti and noticed that the included madNvLevelsTweaker.exe utility has the added benefit of fixing the Nvidia HDMI audio "not plugged in" problem after resume from sleep/TV turned off and back on (normally requires a restart). Not knowing how the madNvLevelsTweaker.exe utility is working, is it safe to run multiple times (eg every time I resume from sleep)? If not, is there any chance that whatever function you are using to reset the graphics driver could be used separately? Thanks! - other dedicated programs such as HDMIOn and HDMIYo fail to correct the issue. Also, the Gefen HDMI detective plus does not work properly with the current Nvidia drivers (HDCP error). |
11th April 2013, 06:40 | #18310 | Link |
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Posts: 51
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Hi guys, have a quick question about DVD playback.
Many PAL DVD's are 25fps progressive but flagged as 50i, where the frames are progressive (at 25fps) but are played twice to give 50fps. Can I simply deselect "automatically activate deinterlacing when needed" and safely have the video played as 25p? |
11th April 2013, 06:53 | #18311 | Link | |
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You should also use the osd to see if it's detecting anything wrongly. Sent from my Blade S using Tapatalk 2 |
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11th April 2013, 07:14 | #18312 | Link |
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Thanks for the shortcut tip. What's happening (according to the OSD) is that (with "automatically activate deinterlacing when needed" on) MadVR spends a lot of time deinterlacing, which puts stress on my old GPU. I assume that if I turn off that option then MadVR will simply drop half of the 50 fps, leaving a perfect, progressive 25fps?
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11th April 2013, 08:24 | #18313 | Link | |
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Quote:
I can't speak for using madNvLevelsTweaker, but have you disabled the Nvidia Display Driver Service? I know that some people like to disable "unnecessary" services, and I have found it to cause problems with HDMI audio in the past when it was disabled. |
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11th April 2013, 08:32 | #18314 | Link | |
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11th April 2013, 09:51 | #18315 | Link |
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What a pity.
I noted (MadVR + Lav (Jriver)) the following distribution in terms of use of machine resources (in average and with Bicubic/Lanczos). GPU (hd4000) : 60%-80% CPU (i7 3370): 5%-10% Many people are moving towards a fanless configuration (w/o any graphic card). It would be nice that developers balance their codes load between CPU and GPU. Currently, most of codes are GPU oriented. Not sure this is the better choice. Last edited by adhara; 11th April 2013 at 09:53. |
11th April 2013, 12:03 | #18316 | Link | |
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If performance isn't a problem then you can usually leave deinterlacing on for progressive content. To check that nothing funky is happening to the video, simply step through the frames (after playing a few seconds). If every other frame is identical to the previous one, then everything is fine. If they are similar but not the same, then your GPU isn't handling the cadence properly and is incorrectly applying deinterlacing, resulting in resolution loss.
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TV Setup: LG OLED55B7V; Onkyo TX-NR515; ODroid N2+; CoreElec 9.2.7 Last edited by DragonQ; 11th April 2013 at 12:16. |
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11th April 2013, 16:22 | #18317 | Link | |
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Posts: 18
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Quote:
I realize that this is off topic. I will probably try to just keep using madNvLevelsTweaker, but that method does not have a high WAF. Apparently both AMD and intel video drivers are handling HDMI hotplug detection properly right now, but I would prefer to stick to Nvidia and CUVID for LAV/madVR. |
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11th April 2013, 20:51 | #18319 | Link | |
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Quote:
DXVA2 Native decoding performs slightly worse than LAV's Copy-Back implementation for me, and it does not allow you to force Film-type deinterlacing, which makes it useless for me. DXVA2 Copy-Back performs best out of the three. Files are correctly detected as being progressive/interlaced, and you are able to force Film-type deinterlacing when using it if you need to. (I actually have madVR set up to force Film-type by default, and manually override it in the rare case that video-type is required) Both DXVA2 decoding options also allow the graphics card to drop down to the medium power state as well if it's not needed. Because I have a GTX570, it never needs to be in the high power state during video playback, so this reduces my power consumption. It is rare, but I have one or two videos (Blu-ray discs, even) that show artefacts when decoded via the hardware decoders, that play back perfectly with software decoding. Otherwise, image quality should be the same between CUVID and DXVA2 Copy-Back. But it's so rare that I stick with DXVA2 Copy-Back for the power savings. I can't say what the situation is like for AMD/Intel. |
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11th April 2013, 23:49 | #18320 | Link |
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Yeah I would recommend both types of DXVA2 over CUVID for nVidia cards, unless you have a specific reason to use the latter (like I do right now).
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TV Setup: LG OLED55B7V; Onkyo TX-NR515; ODroid N2+; CoreElec 9.2.7 |
Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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