# US 12,114,018 B2 · Device, and method of decoding video data

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- Number: US 12,114,018 B2
- Document ID: US12114018B2
- Status: Granted
- Kind: B2
- Application number: 18/232,377
- Filed: 2023-08-10
- Published: 2023-11-30
- Granted: 2024-10-08
- Earliest claimed: 2020-04-03
- Assignees: Sharp Kabushiki Kaisha
- Applicants: Sharp Kabushiki Kaisha
- Inventors: Sachin G. Deshpande
- Web page: https://patentgrep.com/patent/US12114018B2

## CPC

- H04N 19/70: characterised by syntax aspects related to video coding, e.g. related to compression standards
- H04N 19/119: Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
- H04N 19/124: Quantisation
- H04N 19/52: by predictive encoding
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A device may be configured to decoding capability information according to one or more of the techniques described herein.

## Claims

### Claim 1

A device comprising one or more processors configured to:
parse a zero four bits syntax element in a decoding capability information (DCI) raw byte sequence payload (RBSP) syntax structure, wherein the zero four bits syntax element is an unsigned integer using 4 bits;
parse a number syntax element in the DCI RBSP syntax structure, wherein the number syntax element plus 1 specifies a number of profile tier level syntax structures in a DCI network abstraction layer (NAL) unit;
parse a profile tier level syntax structure in the DCI RBSP syntax structure;
parse a general level idc syntax element in the profile tier level syntax structure; and
parse a general constraint information syntax structure in the profile tier level syntax structure,
wherein
the number syntax element is parsed immediately after the zero four bits syntax element is parsed,
the general constraint information syntax structure includes a plurality of flags imposing constraints, and
the general constraint information syntax structure is parsed after the general level idc syntax element is parsed in the profile tier level syntax structure.

### Claim 2 (depends on 1)

The device of claim 1, wherein the device includes a video decoder.

### Claim 3 (depends on 1)

The device of claim 1, wherein the device includes a video encoder.

### Claim 4

A method of decoding video data, the method comprising:
parsing a zero four bits syntax element in a decoding capability information (DCI) raw byte sequence payload (RBSP) syntax structure, wherein the zero four bits syntax element is an unsigned integer using 4 bits;
parsing a number syntax element in the DCI RBSP syntax structure, wherein the number syntax element plus 1 specifies a number of profile tier level syntax structures in a DCI network abstraction layer (NAL) unit;
parsing a profile tier level syntax structure in the DCI RBSP syntax structure;
parsing a general level idc syntax element in the profile tier level syntax structure; and
parsing a general constraint information syntax structure in the profile tier level syntax structure,
wherein
the number syntax element is parsed immediately after the zero four bits syntax element is parsed,
the general constraint information syntax structure includes a plurality of flags imposing constraints, and
the general constraint information syntax structure is parsed after the general level idc syntax element is parsed in the profile tier level syntax structure.