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AssigneeMicrosoft Technology Licensing, LLC
InventorsGary J. Sullivan, Yongjun Wu
Estimating the term…
Innovations for signaling state of a decoded picture buffer (“DPB”) and reference picture lists (“RPLs”). In example implementations, rather than rely on internal state of a decoder to manage and update DPB and RPLs, state information about the DPB and RPLs is explicitly signaled. This permits a decoder to determine which pictures are expected to be available for reference from the signaled state information. For example, an encoder determines state information that identifies which pictures are available for use as reference pictures (optionally considering feedback information from a decoder about which pictures are available). The encoder sets syntax elements that represent the state information. In doing so, the encoder sets identifying information for a long-term reference picture (“LTRP”), where the identifying information is a value of picture order count least significant bits for the LTRB. The encoder then outputs the syntax elements as part of a bitstream.
-44. (canceled)
In a computing system that implements a video decoder, a method comprising:
A computing system comprising
One or more computer-readable storage media storing coded data for at least part of a bitstream, the one or more computer-readable storage media being selected from the group consisting of volatile memory, non-volatile memory, magnetic disk, CD-ROM and DVD, wherein the bitstream includes syntax elements that represent long-term reference picture (“LTRP”) status information for a current picture among pictures of a sequence, wherein the LTRP status information for the current picture identifies which pictures, if any, are available for use as LTRPs for the current picture, the syntax elements including identifying information for a given LTRP in the LTRP status information for the current picture, and wherein the identifying information for the given LTRP is a value of picture order count least significant bits (“POC LSBs”), modulo a most significant bit wrapping point, for the given LTRP for the current picture, the coded data being organized to facilitate decoding by operations comprising:
Dependencies are inferred from the claim text.