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16th May 2012, 10:54 | #11001 | Link |
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You can force your GPU to stay in P1 when using CUVID with certain tweaker programs but this may not provide enough power for lower-end cards aimed at the HTPC market. Using DXVA2 Native is better in terms of power usage.
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16th May 2012, 11:02 | #11002 | Link | |
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Quote:
Doesn't work with madVR and QS still consumes less power. |
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16th May 2012, 13:53 | #11003 | Link |
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I have only noticed this to happen in HP1 ultimate edition but it keeps wanting to restart to the beginning part way through the track? Then randomly fix itself later.. it doesn't do that with TMT5 or FFDshow audio decoder
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16th May 2012, 15:15 | #11004 | Link | |
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Quote:
My decoder has already basic support for it so LAV + QS DI is not far. The price will be more memory copying, but the next feature will be output of DXVA frames. I'll also add the option to copy the DXVA frames so subtitle could be added on them. I'll ask for suggestions/requirement when it's relevant.
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16th May 2012, 19:52 | #11006 | Link |
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I think MadVR uses DXVA deinterlacing which will be the same.
CUVID will be different and we need some test clips. My guess is that for most clips, they will produce similar results. I'm not familiar at all with the DI quality of CUVID.
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Eric Gur, Processor Application Engineer for Overclocking and CPU technologies Intel QuickSync Decoder author Intel Corp. |
16th May 2012, 19:54 | #11007 | Link |
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It uses the same DXVA deinterlacing. I was hoping aufkrawall realized by now that all deinterlacing done is the same GPU deinterlacing. :P
Of course CUVID uses NVIDIAs deinterlacing....
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16th May 2012, 21:44 | #11008 | Link | |
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Quote:
While hardware de-interlacing I've seen is better than nothing it still leaves obnoxious distortions in the image. So far, nothing I've seen can compare to QTGMC. It really is a shame that we can't abstract QTGMC into an algorithm that could be implemented in such a way as to run on a GPU. |
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16th May 2012, 22:10 | #11009 | Link | |
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Alright.
I just lent that term from the LAV decoder GUI. Quote:
That weird tearing artifacts are really totally fugly. |
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16th May 2012, 22:34 | #11010 | Link |
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I can't see any deinterlacing artefacts on a VP4 GPU. I'm sure the algorithm is better than older GPUs though because my VP2 GPU's deinterlacing doesn't look as good in fast moving scenes.
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16th May 2012, 22:48 | #11011 | Link |
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I see kind of tearing when he is moving his hand quickly:
http://forum.doom9.org/showpost.php?...3&postcount=15 |
16th May 2012, 23:13 | #11013 | Link | |
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Quote:
I have not seen anything, which comes close to QTGMC- including DigitalVision DVO filters. They have 20 years experience in motion/video aspects, but even so QTGMC is better. Maybe Teranex box can match it, but I would not be so sure. Problem with QTGMC is speed Last edited by kolak; 16th May 2012 at 23:15. |
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16th May 2012, 23:47 | #11015 | Link |
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Why shouldn´t it be possible to create 4:4:4 by downsizing? You just need to know chroma position and use correct subpixel-cropping during resize. AviSynth-resizers support that (you can use float parameters as source position):
Code:
...Resize(clip clip, int target_width, int target_height, float src_left, float src_top, float -src_right, float -src_bottom) Any news for DV sound problem? Problem reproduceable with my sample? |
17th May 2012, 00:20 | #11016 | Link | |
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Quote:
Regarding the bitrate, that's not true at all. Encoders do a much better job discarding info when compressing than just blindly removing 3/4 of the color samples. For a given bitrate, if you feed the encoder with 4:4:4 and 4:2:0, 4:4:4 will look much better without sacrificing luma quality. The same thing happens with audio. Just feed the encoder with your 48kHz source and let it decide what is important and what is not, instead of lowpassing the source to 24kHz and compressing that. At a given bitrate, the 48kHz one will sound much, much better. |
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17th May 2012, 01:11 | #11017 | Link | |
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Quote:
That's true... I was somehow thinking lossless compression. Yes, a (good) lossy encoder should be able to decide where to keep the chroma at high quality and where not to. |
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17th May 2012, 01:34 | #11018 | Link | |
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Quote:
The only way I can think of that you could find better deinterlacing than with QTGMC would be with a manual frame-by-frame approach. We need to get -Vit- and Didée jobs with Teranex so they can straighten out their act. |
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17th May 2012, 02:29 | #11019 | Link | |
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Quote:
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17th May 2012, 02:58 | #11020 | Link |
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Wouldn't you wanna do the opposite then? I believe Nev said connecting Intel to the receiver for audio and the nVidia card to the display for video works fine. I haven't tried it cause I don't know where the hell I put my spare HDMI cables. But I'm seriously considering it because the 680 has massive overscan issues when going through the Pio Elite. I have to set a custom res to get it to work and it makes me unhappy. I'm replacing the TV sometime this year with a plasma screen, but, that's a few months away at the earliest.
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