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18th August 2012, 15:04 | #13721 | Link |
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Madshi:
Do you remember when we talked about how to do an exact 2x upscale, for example 720p movie on a 1440p/1600p monitor? Afaik, madVR preserves the center position so that every new pixel is interpolated, and I thought it would be better to center around a corner so that every source pixel is preserved. I tested the differences in Avisynth, and while there were differences, neither really looked better than the other. I just thought about it again, and wouldn't it be much faster to preserve the source pixels? In case you're upscaling one dimension at a time, it would halve the number of interpolated pixels both times. Or if I'm missing something, at least 1/4 could be saved as that's the amount of untouched source pixels. This might also help on other upscale factors because it pretty much guarantees that the maximum number of source pixels are still present. |
18th August 2012, 17:43 | #13722 | Link | |
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We don't care about "less downconversion", our 10bit source in this case is a fake. It will be downconverted anyway sooner or later. And if not, it won't look any better anyway. Also higher than 8bit processing is good indeed but it doesn't means the source won't be dithered in the end. Originally was a question, how it looks like, when not dithered. The answer is - it won't be any better. Lets not go any further. Last edited by Keiyakusha; 18th August 2012 at 18:35. |
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18th August 2012, 20:19 | #13723 | Link |
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Still, once you've upconverted to higher bit depth, be it in encoding or in processing, it's ideal to leave it that way until final downconversion, which in this case happens on the monitor. Of course this can't be done yet, but still.
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18th August 2012, 20:54 | #13724 | Link |
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Thanks for answering. Iirc I read that aero's vsync is messing with madvr vsync hence aero should be disabled. It is possible the information was incorrect or I misunderstood it and that's why I am asking.
Last edited by strumf666; 18th August 2012 at 22:43. |
18th August 2012, 20:59 | #13725 | Link |
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Don't get me wrong, I'm not entirely sure myself. I recall something like that at early stages of madvr development but desktop composition shouldn't be an issue now. Also for example on Win8 you can't turn it off anymore so if you aware of some troubles with it, they probably need to be resolved...
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19th August 2012, 05:20 | #13726 | Link |
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Regarding AR calculation again.
As was reported before by few users 720x480 video with 32:27 SAR results incorrect resolution 1919x1080 Now 692x448 with 103:86 SAR results 1920x1058 resolution, while it should be 1920x1038 (20px error seriously? Oo) Is there a way to improve something about it? I don't rectally care about 2nd case, this is one and only dvd i have with letterboxed 1.85 video, but how about 720x480 case? |
19th August 2012, 14:27 | #13728 | Link | |
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The first two numbers of madVR's Target Rectangle stats are horizontal and vertical padding. I'd also be curious what resolution madVR uses when playing that video at 100% after anamorphic stretching. According to the resolution and SAR you listed it, should be 829x448 (or 828x448) after anamorphic stretching, but according to what you say madVR is using @1920x1080, it would be 813x448 which doesn't make any sense. Are positive that your decoder is reporting the correct SAR to madVR? Last edited by cyberbeing; 19th August 2012 at 14:44. |
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19th August 2012, 19:44 | #13729 | Link | |
Playing with MKV files...
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If you don't have playback issues that you need FSE mode to overcome, there's no reason why you couldn't disable FSE mode if it allows these other programs to draw to the screen more easily or gets rid of the sometimes noticable "jump" to FSE mode when going to full screen on your video player.
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20th August 2012, 04:16 | #13730 | Link |
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Greets, posting this to make sure that my new laptop's video card isn't broke... picked up a Lenovo Y480 Win7 64bit 8Gb Ram with Nvidia 640M-LE graphics card 2GB dedicated ram the other day.
I am using madVR with defaults with Zoom Player. When I set Zoom Player to be used with the onboard Intel 4000 graphics everything is fine with mVR in Fullscreen Exclusive Mode. But when I use Zoom Player with the Nvidia graphics card, and with "Present Several Frames In Advance" (I do believe that's default) checked, in FSE or without FSE, videos stop playing (they just pause by themselves) around 20 seconds after start but the sound continues. And then when I come out fullscreen (doesn't matter whether out of FSE or not) into window mode the video will look like its in Fast Forward by itself trying to catch up. If I uncheck "Present Several Frames In Advance " then it works fine in FSE or without FSE. Ummm... have any of you guys experienced this? Am worried that my new laptop's nvidia video card is hosed since this is new technology (compared to me old 8600M-GT) and ought to work right? Edit: Doesn't matter what container or decoder, any vid I play using the nvidia graphics card with mVR "Present Several Frames In Advance" checked freezes playback after about 20 seconds. Reclock on or off doesn't matter either Last edited by andybkma; 20th August 2012 at 08:30. |
20th August 2012, 16:53 | #13732 | Link |
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Hi everyone
I have this really important question that's been buggin' me for some time now. My HTPC (Radeon 6570) is connected to onkyo avr with hdmi and then to tv(panasonic vt30) with hdmi as well. I have been using full rgb pixel format and mpc-hc with madvr set to 16-235 (otherwise i get crushed blacks). I have calibrated my tv using htpc pattern generator and greyscale ramp in it looks like the one from avs hd calibration disc when I play it in mpc-hc which is not perfectly smooth. I have noticed that when I change pixel format to ycbcr 4 2 2 the ramp in htpc pattern generator becomes smooth but thin vertical lines are still there in mpc-hc. Am I doing sth wrong or is it just impossible to have it completely smooth in mpc-hc? Thanks in advance. |
21st August 2012, 00:38 | #13733 | Link | |
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Quote:
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21st August 2012, 01:29 | #13734 | Link | |
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Since it seems the deringing craze has died down a bit (very interesting stuff!), reposting this as I think it got lost at the end of a page. Can someone advise me on how this works?
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21st August 2012, 02:27 | #13735 | Link | |
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Quote:
Last edited by pie1394; 21st August 2012 at 03:10. |
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21st August 2012, 04:16 | #13736 | Link | |
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Madshi, MadVR deinterlacing: MPEG2 DVD “interlaced” issues with direct DVD material rips using MakeMKV ver 1.7.6 or 1.7.7 - Problem now understood Seen and tested on both AMD Radeon and NVIDIA GPU systems MadVR is “BAD” Reports deinterlacing on : force off and is “GOOD” … (2) EVR/EVR-CP is “GOOD” Can actually see FPS jumps a little at beginning that looks like interlaced then goes to 24fps. An interlaced beginning blip that triggers MadVR and MediaInfo reads but EVR ignores or plays through. MediaInfo shows material as interlaced but the reason that I did not include samples is because when I used MKVMerge to create clip of credits where easy to see, the clip now indicates progressive. Even tried re-ripping with absolute newest MakeMKV to see if that was issue but all show same result. So the interlaced flag that looks like is a quick blip in the beginning is being seen and responded to by MadVR but EVR “ignores”? and plays correctly. Did not upload samples but here are some DVD’s that I had that easily showed the issues: (ripped with MakeMKV ver 1.7.7)
I then used the latest MKVMerge and clipped the first 30 seconds off the ripped material for a quick test to see if could get rid of the “interlaced” blip and it did! Now the files tested play as progressive without issue. The “interlaced” blip at the beginning causes the entire video to be seen as “interlaced” by MadVR when in fact it is not. ... A lot of issues in the beginning logo stuff. Note: See the exact same behavior with Radeon 6570 and NVidia/CUVID with 560Ti and GT525M systems. UPDATE NOTE: Clipping off 1.0-39 sec at the beginning of the MKV files got rid of the "interlace blip" on most files and they then indicated deinterlacing off with MadVR and progressive in MediaInfo in MPC-HC - and played without issue. The "old" intro logos and stuff are crappy, have interlaced content and cause most of the problems ... Chopping out is not practical but it worked. Really need MadVR to accommodate this. EVR/EVR-CP allows these same files to play correctly and there are a lot of them with a DVD direct rip to MKV using MakeMKV. If you process with something like HandBrake all is converted to progressive and you never see the issue ... but you do lose information. The results when working are extremely good.
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21st August 2012, 22:55 | #13738 | Link | |
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Now I've switched back to forcing MPC-HC to use the nVidia, and set LAV to use CUVID. Render times improved greatly. And I love the Anti-ringing switches in test build 6! I have a lot of low-res vids, mostly stuff dumped from a Comcast DVR to an old Hauppauge via S-Video (I know! I know! Don't laugh ;-) Just needed to preserve a lot of stuff ) madVR's ability to tweak the upscaling is bliss. I'm a total noob to LAV and madVR, having been content with CCCP's implementation with ffdshow, but when reading they're going to ditch it eventually for LAV, I decided to be proactive. My HTPC runs a Radeon HD 5670 and a Core i5, and all is perfect with LAV + madVR, whether I use no HW acceleration or DXVA2 copy-back. Actually, GPU-Z shows lower GPU % used with no HW acceleration, at least with a brief logging test. I'm not exactly clear if DXVA2 copy-back gives some benefit over no HW acceleration. But then I'm still reading, absorbing and learning. Anyway, thanks a ton, vivan, for the quick fix, and of course madshi and nev for madVR and LAV. Y'all rule :-) Last edited by ThurstonX; 21st August 2012 at 23:09. |
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22nd August 2012, 02:29 | #13739 | Link | |
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I remembered that interlaced title / introduction at the beginning and then fully progressive 24 fps FILM was seen on the old Region-1 DVDs. It also happens to some Japanese broadcast anime programs encoded with MPEG-2MP@HL. i.e. 29.97 fps Opening & Ending encoded with interlaced mode while the other parts are still 23.976 fps progressive. If interlacing flag and frame duration information are correctly passed to the video post-processor(deinterlacer) per video frame, it should not be a problem to decide whether deinterlacing should be performed or not. (I had did that for the standalone media player + TV recorder products 6 years ago) If the display refresh rate is set to 59.94 fields or frames per second, it is going to have the judder effect on the 24 fps progressive contents. Only the high-end LCD and PDP TV's engines can detect and perform IVTC and restore the 60 telecined fields back to 24 progressive frames. (On the cost-down TV models, it is claimed capable of such processing, but it often does not show good results.) On the good LCD / PDP, the panel driving mechanism is also often adjusted for the 24 fps FILM content's display optimization. Last edited by pie1394; 22nd August 2012 at 16:46. |
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22nd August 2012, 05:23 | #13740 | Link |
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what is recommended for madvr, leaving vsync to application controlled in CCC settings or rather change it to always on?
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Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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