No existing player can perform internal tone mapping of HDR10+ like they might do for HDR10 to SDR BT2020 and/or Dolby Vision to LLDV.Can HDfury passthrough HDR10+ dynamic metadata to a HDR10-only display in a similar way to how it passes through DV dynamic metadata? I would think it would be able to since they both use the same colour bit depth, just + has greater brightness capability.
I just discovered that Amazon Prime Video uses HDR10+ instead of DV.
If you were able to get your HDR+ capable player to send HDR10+ to an HDR10 display that does not support HDR10+, the TV will ignore the HDR10+ dynamic metadata and process the underlying HDR10 static metadata.
Only HDR10+ TVs can extract the dynamic metadata. From the white paper linked below:
If a display doesn’t support the HDR10+ metadata, it will be simply ignored as any other optional ITU-T T.35 metadata and the display reverts to show the strict version of HDR10.