Dynamic HDR - 1.2 English

HDMI 2.1 Transmitter Subsystem v1.2 Product Guide (PG350)

Document ID
Release Date
1.2 English

The HDMI 2.1 TX 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 TX Subsystem supports the following Dynamic HDR features:

  • Dynamic HDR metadata length up to 65535 bytes
  • Insertion of dynamic HDR EMPs in the video stream, based on the FAPA_start_location
  • Support for CTA 861-H dynamic HDR info frames
  • HDR10+ VSIF Support
  1. The GOF info frame is not supported through the memory mapped AXI4 interface. You need to configure the GOF via the software. The GOF info frame will be created inside the IP.
  2. Only Dynamic HDR info frames are read from the memory using a memory mapped AXI4 interface. To send static HDR info frames, use AUX packet APIs. See AUX Packets for details.