Patent ID: 9674533
Date: 2017-06-06
CPC Classifications: H04N

Claim:
1. A method of decoding video data, the method comprising decoding an encoded video bitstream comprising a plurality of layers, wherein at least one access unit of the encoded video bitstream includes one or more Instantaneous Decoding Refresh (IDR) pictures and one or more non-IDR pictures, wherein decoding the encoded video bitstream comprises reconstructing pictures of the video data based at least in part on syntax elements decoded from the encoded video bitstream, wherein each picture of the at least one access unit of the encoded video bitstream corresponds to a same time instance, wherein the encoded video bitstream conforms to a first requirement that, for each respective access unit of the encoded video bitstream, all Intra Random Access Point (IRAP) pictures of the respective access unit have the same Network Abstraction Layer (NAL) unit type, and wherein the encoded video bitstream conforms to a second requirement that, for each respective access unit of the encoded video bitstream, when a particular picture in the respective access unit has nal_unit_type equal to a value in a range from BLA_W_LP to RSV_IRAP_VCL23, any other picture in the respective access unit does not have nal_unit_type that is in the range from BLA_W_LP to RSV_IRAP_VCL23 and not equal to the nal_unit_type of the particular picture.