Configurable NAL and slice code point mechanism for stream merging

US12028552B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Yago SÁNCHEZ DE LA FUENTE · Berlin, DE
• Karsten SÜHRING · Berlin, DE
• Cornelius HELLGE · Berlin, DE
• Thomas SCHIERL · Berlin, DE
• Robert SKUPIN · Berlin, DE
• Thomas Wiegand · Berlin, DE

Key dates

• Filing date: Sep 3, 2020
• Grant date: Jul 2, 2024
• Expiry date: Mar 5, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04N19/597
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

Video decoder configured to decode a video comprising a plurality of pictures from a video data stream by decoding each picture from one or more video coding units within an access unit of the video data stream which is associated with the respective picture; read a substitute coding unit type from a parameter set unit of the video data stream; for each predetermined video coding unit, read a coding unit type identifier (100) from the respective video coding unit; check whether the coding unit identifier identifies a coding unit type out of a first subset of one or more coding unit types (102) or out of a second subset of coding unit types (104), if the coding unit identifier identifies a coding unit type out of the first subset of one or more coding unit types, attribute the respective video coding unit to the substitute coding unit type; if the coding unit identifier identifies a coding unit type out of the second subset of coding unit types, attribute the respective video coding unit to the coding unit type out of the second subset of coding unit types identified by the coding unit identifier.