The HDMI 2.1 RX Subsystem supports CTA 861-H (https://cta.tech/) Dynamic
HDR metadata info frame and HDR10+ VSIF (https://hdr10plus.org/). Dynamic HDR
support is user-configurable in the Vivado IDE. To
enable or disable Dynamic HDR support, select the Dynamic HDR
support check box. When Dynamic HDR
support is enabled, a separate memory mapped AXI4 interface (M_HDR_AXI) is added to
the IP. The memory mapped interface runs on m_hdr_axi_clock.
The HDMI 2.1 RX Subsystem supports the following Dynamic HDR features:
- Dynamic HDR metadata length up to 65535 bytes
- Support for CTA 861-H dynamic HDR info frames
- HDR dynamic metadata according to the syntax specified in Annex R
- HDR dynamic metadata carried in supplemental enhancement information (SEI)
messages according to ETSI TS 103 433-1 [50]Note: For more information, see https://www.etsi.org/deliver/etsi_ts/103400_103499/10343301/01.02.01_60/ts_10343301v010201p.pdf.
- HDR dynamic metadata carried in a color remapping information SEI message
according to Rec. ITU-T H.265 [52]Note: For more information, see https://www.itu.int/rec/T-REC-H.265.
- HDR dynamic metadata carried according to the syntax specified in Annex S
- Graphics overlay flag (GOF) carried according to the syntax specified in Annex T
- HDR10+ VSIF Support
Note:
- The GOF info frame is parsed inside the hardware, and the GOF value will be updated in the IP registers. This value can be read via the software.
- Only Dynamic HDR info frames are stored in the memory using a memory mapped AXI4 interface. The static HDR info frames are sent to software as a generic AUX packet. See AUX Packets for details.
- When Dynamic HDR is not enabled in the hardware, Dynamic HDR packets will be sent to software as generic AUX packets.