Patent attributes
In one example, a device for coding (e.g., encoding or decoding) video data includes a memory for storing data of a bitstream, and a video coder configured to determine whether to code an initial arrival delay syntax element of a bitstream partition initial arrival time supplemental enhancement information (SEI) message of the bitstream based on whether hypothetical reference decoder (HRD) parameters are coded for the bitstream, and in response to determining to code the initial arrival delay syntax element, coding the initial arrival delay syntax element. The video coder may determine to code the initial arrival delay syntax element only when a VclHrdBpPresentFlag for the bitstream has a value of true, e.g., only when video coding layer (VCL) HRD parameters are coded in the bitstream or when VCL HRD operations are determined to be needed in the bitstream.
