Picture header constraints for multi-layer video coding
AssigneeBytedance Inc.
InventorYe-kui Wang
Life of this patent
Estimating the term…
Abstract
Methods, systems, and devices for picture header constraints for multi-layer coding are described. An example method of video processing includes performing a conversion between a video including one or more pictures and a bitstream of the video. The bitstream conforms to a format rule. The format rule specifies a constraint on a value of a first syntax element that specifies whether a second syntax element is present in a picture header syntax structure of a current picture. The second syntax element specifies a value of a picture order count (POC) most significant bit (MSB) cycle of the current picture.
Claims20
A method of video processing, comprising:
- performing a conversion between a video comprising one or more pictures and a bitstream of the video,
- wherein the bitstream conforms to a format rule,
- wherein the format rule specifies a constraint on a value of a first syntax element that specifies whether a second syntax element is present in a picture header syntax structure of a current picture, and
- wherein the second syntax element specifies a value of a picture order count (POC) most significant bit (MSB) cycle of the current picture.
An apparatus for processing video data comprising a processor and a non-transitory memory with instructions thereon, wherein the instructions upon execution by the processor, cause the processor to:
- perform a conversion between a video comprising one or more pictures and a bitstream of the video,
- wherein the bitstream conforms to a format rule,
- wherein the format rule specifies a constraint on a value of a first syntax element that specifies whether a second syntax element is present in a picture header syntax structure of a current picture, and
- wherein the second syntax element specifies a value of a picture order count (POC) most significant bit (MSB) cycle of the current picture.
A non-transitory computer-readable storage medium storing instructions that cause a processor to:
- perform a conversion between a video comprising one or more pictures and a bitstream of the video,
- wherein the bitstream conforms to a format rule,
- wherein the format rule specifies a constraint on a value of a first syntax element that specifies whether a second syntax element is present in a picture header syntax structure of a current picture, and
- wherein the second syntax element specifies a value of a picture order count (POC) most significant bit (MSB) cycle of the current picture.
A non-transitory computer-readable recording medium storing a bitstream of a video which is generated by a method performed by a video processing apparatus, wherein the method comprises:
- generating the bitstream of the video,
- wherein the bitstream conforms to a format rule,
- wherein the format rule specifies a constraint on a value of a first syntax element that specifies whether a second syntax element is present in a picture header syntax structure of a current picture, and
- wherein the second syntax element specifies a value of a picture order count (POC) most significant bit (MSB) cycle of the current picture.
Dependencies are inferred from the claim text.