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4th August 2018, 13:15 | #51942 | Link | |
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I think I'm confused so I'll rephrase my question: is there any way with madVR - using DXVA if needed - to dynamically detect and recover the original 25p encoded in 50i?
You say "there is no automatic detection and hardware deinterlancer can't do it anyway" but this NVIDIA page says even GPUs from 10 years ago could do it: http://www.nvidia.com/object/geforce_8400_features.html Quote:
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4th August 2018, 13:20 | #51943 | Link |
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when you give it 30 frames 60 fields it will output 60 frames which and without IVTC which was optional in the past not sure if it des anything anymore. while it looks like nvidia can field match it can't decimate so the quality is better but the judder is still there.
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4th August 2018, 13:58 | #51944 | Link |
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Okay but I'm only interested in PAL, not NTSC, so I would be happy with just automatic 2:2 detection that gives back 25p. (Edit: or would it give back 50p with successive identical frames? I need to test this further...)
Originally I thought it was due to the way madVR called the DXVA deinterlacer that automatic 2:2 pulldown detection wasn't working but now I've tested with default EVR and DXVA2 Native and NVIDIA can't detect it either, so I guess it's the GPU's fault again. Thanks for the explanation.
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4th August 2018, 14:20 | #51945 | Link |
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i know for sure that field matching worked in the past but yes the output would be 50p with a 2:2 frame cadence.
something broke with win 10. and never forget when testing the nvidia hardware deinterlancer needs about 5 frames before it works properly. |
4th August 2018, 16:51 | #51946 | Link |
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The GPU should be capable of detecting that, but it won't actually decimate down to 25p, it'll just not apply video-mode deinterlacing, which might result in lowered quality otherwise.
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4th August 2018, 22:28 | #51949 | Link |
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Just wanted to confirm a fix for FSE on windows 10 1803, I was having delays of like 2-4 seconds before playback started when going to FSE, but it was just focus assist! I had it off but forgot it was set to turn on for "fullscreen games"
after disabling that windowed and FSE are both working fully for me on windows 10 1803 and nvidia driver 398.36 (I also set "disable fullscreen optimizations" on the exe for my player, jriver mc24, to force regular FSE but it seems to work about the same either way) Last edited by PirateIce; 4th August 2018 at 22:30. Reason: added words |
4th August 2018, 23:38 | #51950 | Link |
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Turns out PotPlayer only supports 8 bit processing in the video filters, and the devs have no plans to implement 10 bit... I guess my best bet is hoping that the dev build mentioned here gets released. Does anyone know if this vapoursynth feature is still in the works?
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5th August 2018, 02:17 | #51952 | Link |
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I would say it starts to soften noticeably around 3, I only turn it on for sources that need it.
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5th August 2018, 06:26 | #51955 | Link |
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Nope.
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5th August 2018, 08:49 | #51956 | Link | |
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Quote:
If its 59.94 fps which resulted from a Telecining operation from either 23.976 (ie. 3:2) or 29.97 (ie. 2:2), then it should be able to recover that as well.
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5th August 2018, 10:15 | #51957 | Link |
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"(why you would ever want that anyway?)"
I think US TV channels that broadcast in 720p60 is/was a use case. (I'm not from the USA so I don't know if 720p HDTV is still commonly used)
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5th August 2018, 11:10 | #51959 | Link |
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I was rather thinking of 24p-in-60p material, I assumed that's what Anima123 was asking.
Like, what happens if a 720p60 TV station wants to show a 24p TV series or movie?
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Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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