18935006. Layer Based Parameter Set NAL Unit Constraints (Huawei Technologies Co., Ltd.)
Layer Based Parameter Set NAL Unit Constraints
Organization Name
Inventor(s)
Ye-Kui Wang of San Diego CA US
Layer Based Parameter Set NAL Unit Constraints
This abstract first appeared for US patent application 18935006 titled 'Layer Based Parameter Set NAL Unit Constraints
Original Abstract Submitted
A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising a picture parameter set (PPS) in a PPS network abstraction layer (NAL) unit and a coded picture comprising a set of video coding layer (VCL) NAL units. A particular VCL NAL unit does not refer to the PPS NAL unit unless a value of a NAL unit header layer identifier (nuh_layer_id) of the PPS NAL unit is less than or equal to a value of a nuh_layer_id of the particular VCL NAL unit. The coded picture is decoded from the set of VCL NAL units based on the PPS in the PPS NAL unit to produce a decoded picture. The decoded picture is forwarded for display as part of a decoded video sequence.