[WiP] - madVR support in MP1 | Page 416

Discussion in 'Area 51 - Testing Area' started by Sebastiii, March 20, 2016.

  1. daWooky
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    played a bit more with the lav settings
    none - similar to copy back (no wonder)
    cuvid - nothing, no auto 3d seen
    but nativ - damn nice(y)(y)
    even with a 3d playlist direct from file to file with different 3d spec and auto option 3d-2d on :ROFLMAO:


     
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  3. Sebastiii
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    Interesting :)
    I will try to grab screenshot in all above mode to see if it works, because auto3d does that grab a frame like a screenshot and analyse the image for similarity :)
     
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  4. daWooky
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    none +3d subs:LOL:
     

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  5. Kotik
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    Dont ask me about details but madshi suggests DXVA CB even on D3D11, somehow in Native mode madVR has no access to some gpu texture buffers or something like that, as a result zoom settings and black bar croppin might fail.

    I loved Native and with EVR i always used it but now with madVR i only use CB.

    Sent from my GT-I9205 using Tapatalk
     
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  6. Sebastiii
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    On my side CB didn't usable with 4K UHD stream (from UHD test channel on Astra 19°) lol :p
     
  7. Sebastiii
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    Ahah :)

    I think i know why it failed :p
    I have a little improved the detection, so need a new Auto3D.dll and new MP bin :p
    We will need to test regression against EVR too :p
     
  8. Sebastiii
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    Here we go : V345 (It grab and save the frame to a file (will be removed after) to know if the grabbed frame is not a old one).
    I'm getting the same behavior that EVR (DXVA2 CB) :p
     
    Last edited: October 13, 2017
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  9. el Filou
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    From what I understand:
    - madVR IVTC, black bars detection, and HDR per-frame measuring, work on CPU not GPU so they can't access the image when using Native (I think that would be possible now with GPUs that have "unified virtual memory" or something - I don't know the official way Microsoft calls it - where you can access their memory from CPU, but code would have to be modified)
    - in addition, Native D3D11 doesn't support deinterlacing yet, so cannot be used for many TV programmes.
    - in addition, Native DXVA2 has blurred chroma on NVIDIA cards (but may not be always visible)

    That's why madshi still recommends copyback. When he implements D3D11 deinterlacing I think D3D11 Native will be best if you don't need black bars detection (do people who don't have projectors really need this?) or IVTC (I only watch PAL so I just set LAV to forced weave for films, I don't waste CPU cycles that way :)).
    The best would be if LAV could use profiles like madVR (e.g. "if > 1080p then use Native else use Copyback) :whistle:

    I have the same problem. I thought it was because of my slow Core 2 platform but you've got an i7 so that is weird. :confused:
     
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  10. Sebastiii
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    Can you explain more about projector ? :)
    I'm using my HTPC on projector lol

    Yep in DXVA-CB, it didn't use the GPU processor so it seems and my i7 is not enough powerful :)
     
  11. daWooky
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    those uhd hevc streams are pretty challenging, i use low mad scaling setting even with 1060 gpu on those;)
    Screenshot (436).png
    may try it similar or closer to the defaults:p should works

    and i did a short run (out till the evening:p)with the latest v345
    sadly it didn't do better than before, sbs sometimes, tab wont :( see attached screen series
    Screenshot (437).png
    also the native mode seems affected badly now, damn:cry:
    bb, later;)
     

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