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[jsmith967]

I would love this support. I'd love to ditch MadVR.

Just found this thread. @Hendrik Perhaps it should be moved to MC 32 since 31 is now legacy?

Right now this idea is even more interesting as we can get devices that will output full DV Profile 7 with FEL included. So if we can plug this device to the capture card + JRVR we can achieve the best possible DV output and the best JRVR tone mapping solution.

And yes, right now I can do that with VideoProcessor + MadVR, but I prefer to not get stuck with a super old version of MadVR since all versions after v.113 are blocking the use of Capture Cards. (Concerns with cannibalizing Envy sales...).

All I need is an option that can I use to force HDR/PQ/BT.2020 or SDR/BT.709 as an input into JRVR. (output of the Decklink capture card).

[mumford]

I would love this support. I'd love to ditch MadVR.

me too.  Used to run CoreElec before moving to a Zidoo, and will order an Ugoos and moving back to CoreElec.  Full FEL support is huge. 

[Manni]

I saw in the recent logs for V33 some items related to video capturing such as this in 33.0.40:

Changed: For video capturing (on Windows, using DirectShow), if the device does not offer "Video Capture Pin" property page, MC will save video output format data upon user exiting from "Video Capture Filter" property page. This solves the issue of MC never saving the output format that the user set on the property page.
2. Fixed: DirectShow device "DeckLink Video Capture" from Blackmagic Design did not work.

I was wondering if the above is related to the topic discussed in this thread, and if yes, has any progress been made, if not why has any progress not been made?

[mattkhan]

See https://yabb.jriver.com/interact/index.php/topic,139807.msg971864.html for some progress

Fwiw I have written a capture filter for the magewell 4k pro cards which does this (switching to HDR and back automatically) and multichannel pcm , can't say it's 100% reliable yet but nearly there I think

[Manni]

See https://yabb.jriver.com/interact/index.php/topic,139807.msg971864.html for some progress

Fwiw I have written a capture filter for the magewell 4k pro cards which does this (switching to HDR and back automatically) and multichannel pcm , can't say it's 100% reliable yet but nearly there I think

That's great news! However, until there is a solution with audio passthrough, it's a bit of a no-no, as it means no Atmos or DTS:X.
Does the Magewell do full HDMI 2.1 bandwidth, or is it 18Gb/s?

[mattkhan]

There is a variant with a LT port https://www.magewell.com/products/pro-capture-hdmi-4k-plus-lt

No idea if MC television would support bitstream via this method

Specs are https://www.magewell.com/tech-specs/pro-capture-hdmi-4k-plus-lt

It's a 2.0 input, are there any that do 2.1?

[Manni]

There is a variant with a LT port https://www.magewell.com/products/pro-capture-hdmi-4k-plus-lt

No idea if MC television would support bitstream via this method

Specs are https://www.magewell.com/tech-specs/pro-capture-hdmi-4k-plus-lt

It's a 2.0 input, are there any that do 2.1?

There was no HDMI 2.1 capture card last time I looked, no. I have less need for this now that I have a 1,000nits TV as static tonemapping is fine for my non-HTPC source (with DV / HDR10+ when available), but in case I ever go back to projectors that would be an interesting project.

I don't really mind the HDMI 2.0 bandwidth as all my non-HTPC sources have the same limitation, but if you can't passthrough immersive audio that's a dealbreaker for me.

Thanks for the update, please let us know if you make any further progress!

[Manni]

Any progress on this project?

[mattkhan]

Mine works fine for me, still need to test if bitstream pass through works or not (will try to do that this weekend)

[Manni]

That would be great thanks! If it does, I'd really appreciate if you could provide a bit more details on the capture cards that work, and how you get the input to benefit from JRVR tonemapping with HDR content, as that would be my primary use.
I'm thinking that if the sources go through the AVR first, it doesn't matter if there is no bitstream passtrough in the capture card.
Do you have some kind of rough diagram of your A/V chain, i.e. where is each device in the chain?

[mattkhan]

I've tested with https://www.magewell.com/products/pro-capture-hdmi-4k-plus and https://www.magewell.com/products/usb-capture-hdmi-4k-plus

and how you get the input to benefit from JRVR tonemapping with HDR content

I read the contents of the HDR infoframe on a frame by frame basis and tell the renderer when the format changes, this switches automatically between HDR and SDR when necessary

Do you have some kind of rough diagram of your A/V chain, i.e. where is each device in the chain?

I'm PC only so it's v simple

sources -> vertex2 -> PC -> jvc projector

there's an LG OLED (which feeds a Denon AVR via earc) on the 2nd output from the vertex2 though that's probably not so relevant here)

[Manni]

Thanks!

That's quite expensive here: https://www.scan.co.uk/products/magewell-pro-capture-hdmi-4k-plus-hdmi-20-input-loop-through-pcie-x4-interface-4096-x-2160-dci-4k-vi
Do the Blackmagic cards work too? Their 4K Capture card is about half the price: https://www.scan.co.uk/products/decklink-quad-hdmi
I guess I should follow @Yaobing's thread you linked to earlier, as it looks like it's focusing on Blackmagic's support, but it doesn't seem to be working with HDR content yet (which would be my primary use for this).

I guess in my case I would have something like:
Sources > AVR HDMI Out 2 > HD-Fury > Capture Card > HTPC > TV In 2 (probably using a DP>HDMI output of my nVidia GPU when I need to use JRVR to process/tonemap content) and
HTPC HDMI Out (and other sources) > AVR HDMI Out 1 > TV In 1 when I want to use the HTPC as a source.

Thanks again for your help/feedback!

[mattkhan]

yes they're rather expensive new, they pop up on ebay with some regularity for much much less (e.g. I picked mine up for £120). There's one on there atm in fact (https://www.ebay.co.uk/itm/156794487682?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=Pt993cfKRK6&sssrc=2047675&ssuid=9YI-1Z4YTBm&widget_ver=artemis&media=COPY) albeit they're asking for rather more.

the alternative is to wait for Yaobing to implement similar for blackmagic cards though last I saw he doesn't have a card himself to develop with which seems like an extraordinarily hard task to take on. They don't give progress reports though so can't say if that's changed.

I do also have blackmagic card at home actually so theoretically I could port my filter to use their SDK, if I get the time perhaps I'll take a look to see if that's a relatively easy job.

[Manni]

Thanks. Yes, if you look at the buy it now it's still expensinve for used and no warranty.
It would be great if you could take a look at the Blackmagic, it must indeed be really hard to develop this without access to the hardware.
I'll keep an eye on the Magewell card on e-bay (£120 would be fine of course). I won't buy a Blackmagic one until support is confirmed working. I'm not really in a hurry for this.