Methods and apparatus supporting multi-pass video syntax structure for slice data

摘要

There are provided methods and apparatus supporting a multi-pass video structure for slice data. An apparatus includes an encoder for encoding at least one syntax data element related to at least two partitions of at least a portion of a picture. The at least one syntax element is encoded within a multi-pass syntax structure. The at least one syntax element belongs to a given class of data. The encoder encodes the at least one syntax data element with respect to all partitions of at least the portion of the picture prior to encoding a next class of data, wherein later coded data classes, including the next class, have at least one of an explicit coding and an implicit coding of at least one of a casual dependency and a non-casual dependency with respect to earlier coded data classes coded earlier than the next class.

主权项

1. An apparatus comprising:
an encoder for encoding at least one syntax data element related to at least two partitions of at least a portion of a picture, wherein the at least one syntax element is encoded by a plurality of successive coding loops including a first loop that encodes macroblock and sub macroblock coding modes as a first data class, wherein a later coding loop encodes a syntax data element of a second data class based on the coding modes, wherein reference picture information is conditionally encoded in a coding loop after the later coding loop based on the coding modes and the syntax data element of the second data class, wherein a use of the plurality of successive coding loops is enabled or disabled using at least one syntax data field in a high level syntax element.