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1st October 2017, 19:14 | #46141 | Link | |
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Thank you !! I will test it , so 90 ms is the best one ? seems like it . Which delay do you use for Bluray/3D in powerdvd ? it is default on 0.20ms . should I put it higher ? Last edited by x7007; 1st October 2017 at 19:21. |
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2nd October 2017, 01:05 | #46142 | Link |
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Back to my 720x576 DVDs that seem to be a bit small on my 16X9 screen when I set the motorised black masking to 4X3 as in this image. It always seems ok on 720x480 DVDs...
OSD states movie 720X576 Scale 0,0,720,576 > 480,0,3360,2160, is this correct? What does the 480 mean? and why is the 3360 not 3840 like my 16x9 BDs are? I just dont understand the scaling... https://snag.gy/Hvj2CT.jpg |
2nd October 2017, 03:17 | #46143 | Link |
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the displayed image is 2880x2160 4/3.
the number 480 is the start where madVR starts drawing the image and the 3360 is the point where madVR stops drawing the image. so yes it is correct. the problem is your screen is at 4/3 with a 16/9 resolution and you didn't tell madVR that this is the case. but madVR can be setup for this. you go to devices set your device digital projector and try the screen config settings. Last edited by huhn; 2nd October 2017 at 03:43. |
2nd October 2017, 04:31 | #46144 | Link |
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That setting in there is for anamorphic stretch, I dont want that as Im not using a lens in this situation. The only other settings on that page are for cropping, I dont want to crop the image.
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2nd October 2017, 07:22 | #46146 | Link | |
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The numbers there define the display rectangle of the image (the start and end of the image), it starts at left 480, and ends at left 3360 - ie. its 2880 wide and centered, just like it should be for 4:3. Obviously for 16:9 it would fill the entire screen, so the start would be 0 and the end 3840 - but 4:3 doesn't fill the entire screen, so there is letterboxing, which those numbers express. madVR is doing exactly what it should be doing.
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LAV Filters - open source ffmpeg based media splitter and decoders Last edited by nevcairiel; 2nd October 2017 at 07:34. |
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2nd October 2017, 07:39 | #46147 | Link |
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Thanks nevcairiel for that explanation. Im pleased that madvr is doing the right thing, what isnt then is many of the 576 DVDs.
99% of my classic BDs that are 4x3 fit perfectly within the motorised preset side masking I have set for 4.3, 16.9 and scope 2.35. The presets are setup correctly from the Spears & Munsil test disc. However may of the 4x3 DVDs I have the left and right edges miss the preset 4.3 side masking, unlike their BD cousins. I can fix this with the zoom control, but the smallest % any of us can use is 25% zoom. Using 25% zoom in this scenario is way to big and overshoots the 4x3 masking ratio up to approx 1.66 ratio, whereby cropping the top and bottom of the image too much. I really wish madshi would make some smaller zoom steps e.g. 5%, 10%, 15%, 20%, 25%, this would fix these incorrect sizings from some DVDs on 4x3 material. It would be a very simple fix, not important for most who use monitors or TVs, but those with projectors and masking it would be a very welcome bonus! I did mention this many months ago, as I also use the zoom control for some of the odd scope ratios that arnt 2.35, like Ben Hur and many of the very early Fox scope titles that are wider than todays scope. The 25% often zooms up too large, having smaller steps would be great for us guys with projectors and motorised masking...wink wink Last edited by 70MM; 2nd October 2017 at 07:41. |
2nd October 2017, 07:50 | #46148 | Link | |
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Last edited by Razoola; 2nd October 2017 at 08:22. |
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2nd October 2017, 11:33 | #46149 | Link | |
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As I mentioned in MPC-BE thread, I don't use 'if there are big black bars' but only 'crop black bars'.
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2nd October 2017, 11:52 | #46150 | Link | |
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2nd October 2017, 14:23 | #46151 | Link | ||
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and there is another way too to do this fully automatic. you create a profile for devices and create a masking for 4/3 content (480 right and 480 left on an UHD screen it is bigger on a 4096p screen but i'm sure you can do the math on your own) after that you go to create the same profile for zooming just to be save and check "automatically detect hard coded black bars", "if there are big black bars" -> "... zoom the bars away completely" and "zoom small black bars away". Quote:
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2nd October 2017, 14:47 | #46152 | Link |
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Its somewhat "normal" for older DVDs to have a bit of black bars encoded, especially if they are 4:3. madVRs automatic zoom control might be able to deal with it.
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2nd October 2017, 14:47 | #46153 | Link | |
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screens: original: http://i.cubeupload.com/b7mMse.png cropped: http://i.cubeupload.com/llq8ia.png |
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2nd October 2017, 19:26 | #46156 | Link |
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The method you state seems really complicated and hard to implement Im sorry to say. If the zoom settings in madvr had smaller steps as stated 5%,10%, 15%, 20% then the actual first one which is 25% this would be simple and easy to use. Just those four.....
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2nd October 2017, 19:32 | #46157 | Link |
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it pretty easy to do it is pretty much nothing compared to setting up multiply profiles.
and the most important part is it will work 100% automatic and it will crop as least as possible and only as much as needed. you can even skip the profile part and manual check masking when a 4/3 source is played. I mean why add options that only do the crude work when the current implementation is way more accurate. |
2nd October 2017, 20:05 | #46158 | Link |
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What is your method actually measuring to make the change automatically with the mask huhn?
Is it measuring the bar at the top and bottom and zooming them away to full screen? If thats the case it doesn't necessarily work correctly if the 4x3 image is already full screen top and bottom within the 16.9 DVD... What I need is to slightly zoom 4x3 images that are not quite wide enough within the 16X9 frame even if they are full frame top/bottom. I dont mind if the image is slightly cropped top/bottom. I already have a Profile for 25% zoom, but its too big a step, I probably only need a 5% zoom for DVDs that are affected this way. Ive tested many times zoom small and big black bars away automatically but since it doesnt happen, I take it the 4x3 DVDs are already full frame top/bottom and thats where madvr measures from, not the sides... |
2nd October 2017, 20:23 | #46159 | Link |
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it simulates a 4/3 screen with touch from outside kind of.
so it will try to always remove all blackbars in the image up to a resolution of 2880x2160 and it will not try to remove the giant black bars that is mask by your projector it will always leave it black. without this madVR will try to remove the huge blackbars created by the 4/3 image displayed on 16/9 screen making cropping 25% such a big step. another easy "fix" for this problem should be the media player. in mpc-hc you can use 9 on the numlock(with active numlock) to zoom in by 2% steps most other media player should have this option/feature too. |
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direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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