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17th April 2009, 22:16 | #401 | Link | |
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PC monitors are another issue - but the use case for MadVR is for HTPCs not desktops. Using current OSes (XP, Vista) how does manipulating the gamut helps? You can't expand it, only shrink it even further. In order to output a wide gamut you'll need OS support for outputing YCbCr without ever going to RGB. Am I missing something here? Are you reffering to using the EDID information from the display? Doesn't the GPU driver already do this if EDID information is valid? |
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17th April 2009, 22:36 | #402 | Link |
And so it begins...
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Yes, this is what we want. There are projectors and other displays out there which have a wide native gamut which can not be shrinked to the ITU-R Rec. BT.709 (or BT.601), because the devices lack the necessary option. So the saturation of the primaries and certain color combinations are way too high when watching Blu-ray's or DVD's. The picture looks not as it is intended to. Our goal is to achieve the BT.709 as close as possible.
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17th April 2009, 23:41 | #403 | Link | |
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If you want to see it in pictures go here. You can see two pictures of my projector. The outer white triangle is my projector's color gamut, the interior triangles, are the standard's color gamut. |
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17th April 2009, 23:52 | #404 | Link | |
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ppl on HCFR are ecstatic when they find out about this, wide gamut is evil on SMPTE-C movies....your PS script is saving lives I tell you Last edited by leeperry; 18th April 2009 at 01:30. |
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18th April 2009, 13:42 | #406 | Link | |
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Some players like Media Player 9-11 and Media Center load specific renderers. PowerDVD and WinDVD have their own built-in renderers. In some players you can specify the renderer (e.g. ZoomPlayer). DirectShow filters in general can declare a 'merit' - this value is used by the DirectShow architecture when building graphs automatically. The higher the merit - the most likely the filter will be used in a graph. |
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18th April 2009, 18:00 | #407 | Link |
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Hi madshi,
i am about to buy some new hardware, and your renderer has got me thinking twice about which videocard to buy. Here is what i use my pc for: *SD(xvid/realmedia) playback with upconversion to fullhd (my current cpu can hardly keep up with ffdshow's processing) *DVD with deinterlacing and upconversion *non-full hd(hdready) to fullhd scaling *fullhd native (should be 1:1) I already know that a difficult high bitrate h264 + TrueHD/DTS-MA decoding requires a +/- 3ghz C2D cpu. Now, i'm guessing that madVR will do the whole upconvert-to-bear-hd thing in an upcoming version(it's almost there now anyway), What kind of CPU+Videocard combination should i at least be looking at to get all the features you have planned working? (PS i doubt it matters at the moment, but my display supports up to 12bit over hdmi) |
18th April 2009, 22:29 | #408 | Link |
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well, there'll never be any DXVA in mVR as I understand it so CoreAVC CUDA would be a great asset IMHO.
BTW, my HR/mVR comparison on the previous page was...just that. the slight gamma difference is mostly due to ConvertToYUY2() I guess, or the difference in the YV12>RGB32 pipeline between the 2. to truly compare 8bit/16bit dithered, I'd have to either try a 8bit LUT in mVR(prolly not supported) or use the same exact HR setup w/ both types of LUT, and then it'd make sense. prolly w/ these settings in the Avisynth filter of ffdshow, w/ a 16-235 input and a LUT that does PC conversion+BT709 RGB : Code:
yv12toyuy2(itype=2,threads=4) t3dlut("C:\LUT.3dlut",threads=4) BTW, the 16bit LUT doesn't use any CPU cycles in mVR, right? Last edited by leeperry; 18th April 2009 at 22:38. |
18th April 2009, 22:44 | #409 | Link | |
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Reclock manages to spoof the id's of the default directshow Audio Renderer and can be setup to get loaded in all situations (it used to be a bit of a PITA to control the damn thing). But this sort of thing is a long way down the track. Once Madshi has implemented smoothness controls, MadVR will be ready for primetime, but at the moment he hasn't and it's too jerky. Last edited by Mark_A_W; 18th April 2009 at 23:43. |
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18th April 2009, 22:57 | #410 | Link | |
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this type of issue happens on many boxes(not just mine), mostly w/o exclusive mode XP can't keep up w/ the tight Reclock timings I think...only HR can, and only if you catch the VSYNC fliptime properly(which is pretty hard to begin with) but yeah, this renderer is only a week old and madshi's got more tricks than a clown's pocket Beliyaal has found a way to NEVER miss the VSYNC fliptime in VMR9/EVR from what I've seen, so it's all possible I guess...just requires some maad coding skillz Last edited by leeperry; 18th April 2009 at 23:38. |
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19th April 2009, 14:30 | #412 | Link | |||
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Also, I'm planning to get a low power Intel Quad core, just to be on the safe side of things. Maybe one of those new Xenons which have a really low TDP. Probably the combination of Quad core Intel + 4770 is much more than is really needed. But I don't know yet which hardware is exactly required for madVR. We will only be able to say once basic playback works perfectly including smooth playback features. Only after that we can collect data on which combination of CPU and GPU works and which doesn't. Right. Except loading the 3dlut file at startup time, of course. |
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19th April 2009, 14:34 | #413 | Link |
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madVR 0.5 released
http://madshi.net/madVR.zip Code:
* DVD playback should work now, too * improved switching times between fullscreen and windowed mode * improved startup time * chroma samples are now placed left instead of center luma * added settings control to switch between TV and PC output levels * added settings control to enable/disable 3dlut processing * added settings control for selecting chroma resampling filter * D3DX9_35.dll is not needed, anymore * improved display refresh rate detection calculation * 3dlut and settings file routines are using unicode instead of ansi now * fixed: aspect ratio calculation truncated instead of rounding * fixed: aspect ratio changes in the middle of the movie were ignored |
19th April 2009, 15:58 | #419 | Link | ||
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Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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