More > JRiver Media Center 31 for Windows
Use a 4K capture card to tone map all sources with JRVR(?) Which cards will work
claw:
--- Quote from: pixelpusher15 on July 24, 2023, 10:07:46 am ---hey claw, this is how I have it setup. I forgot if there were some other things I did. TBH, I had a hard time too and ended up just clicking random things until it worked, lol
Let me know if you have questions about other settings
--- End quote ---
I was able to get JRiver 31 to recognize the DeckLink card as a Camera device. Sending it 4K23 input and the picture is smooth.
I never got it to work with version 28. Now to figure out the JRVR tone mapping options.
I will probably place another HDfury device between the RTX3080Ti output and the LG OLED I am testing with in order to get better signal information about the output.
Right now it seems that JRiver is converting 4K23 input to 4K60 output.
mattkhan:
So basically the request to jriver is to add whatever the minimum required metadata is to enable jrvr to see it as HDR and allow DTM to activate? I guess ideally you would want to be able to switch this on the fly (i.e. content could change from SDR to HDR externally) via some keyboard shortcut/mcws call?
jsmith967:
I am also very interested to get this working with a capture card to allow JRVR to process the signal and output it.
claw:
--- Quote from: mattkhan on July 25, 2023, 12:55:28 am ---So basically the request to jriver is to add whatever the minimum required metadata is to enable jrvr to see it as HDR and allow DTM to activate? I guess ideally you would want to be able to switch this on the fly (i.e. content could change from SDR to HDR externally) via some keyboard shortcut/mcws call?
--- End quote ---
The BlackMagic DeckLink cards do not pass on any HDR metadata.
JRVR status screen reports:
Primaries: Unknown
Transfer: Unknown
Perhaps an option that would force JRVR to see the input as:
Primaries: BT2020
Transfer: PQ
I don't think that luminance values such as Max/Min Luminance, MaxCLL, and MaxFall should be needed since I assume JRVR can tone map HDR content that has zero values. There are quite a few HDR discs that have zero values.
mattkhan:
Yes that's what I am saying the feature request to jriver is, provide a way to specify just enough info on the stream to force jrvr tonemapping to activate.
I guess that lies in Yaobing's area to deliver rather than Hendrik but they would have to comment on that.
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