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AssigneeMicrosoft Technology Licensing, LLC
InventorsGary J. Sullivan, Yongjun Wu
Estimating the term…
This application relates to video encoding and decoding, and specifically to tools and techniques for using and providing supplemental enhancement information in bitstreams. Among other things, the detailed description presents innovations for bitstreams having supplemental enhancement information (SEI). In particular embodiments, the SEI message includes picture source data (e.g., data indicating whether the associated picture is a progressive scan picture or an interlaced scan picture and/or data indicating whether the associated picture is a duplicate picture). The SEI message can also express a confidence level of the encoder's relative confidence in the accuracy of this picture source data. A decoder can use the confidence level indication to determine whether the decoder should separately identify the picture as progressive or interlaced and/or a duplicate picture or honor the picture source scanning information in the SEI as it is.
In a computer system that implements a video decoder, a method comprising:
A computer system, including one or more processing units and memory, that implements a video encoder configured to perform operations comprising:
One or more tangible computer-readable media having stored thereon encoded data in a bitstream for pictures of a video sequence, the encoded data including a first flag and a second flag that is a separate syntax element from the first flag, the first flag indicating whether source scan type of the pictures of the video sequence is interlaced, and the second flag indicating whether the source scan type of the pictures of the video sequence is progressive, wherein the first flag and the second flag collectively and exclusively indicate one of the following unique states for the source scan type of the pictures of the video sequence:
Dependencies are inferred from the claim text.