Patent ID: 8938004
Filing Date: 2015-01-20
Classification: H04N

Abstract:
1. A method for video decoding, comprising: receiving at least one Dependency Parameter Set (DPS) including a representation of a layering structure pertaining to a plurality of coded video sequences, wherein at least one of the plurality of coded video sequences is coded in a layered format; wherein the representation of the layering structure comprises a plurality of layer descriptions corresponding to a plurality of layers, each layer description referencable by an index; receiving at least one Network Abstraction Layer (NAL) unit including a layer_id value and belonging to a picture belonging to one of the least one of the plurality of coded video sequences; and determining at least one inter-layer dependency of the NAL unit based on the received DPS through accessing the layer description by using the layer_id as the index into the plurality of layer descriptions; wherein the DPS includes a dependency parameter set id, the dependency parameter set id being referred to from a sequence parameter set (SPS); wherein the DPS comprises a raw byte sequence payload (RESP) separate from the SPS or SPS extensions, if any; and wherein the DPS is activated once in at least one of the plurality of coded video sequences and pertains to all pictures of the plurality of coded video sequences.