Support of mixed irap and non-irap pictures within an access unit in multi-layer video bitstreams
AssigneeHuawei Technologies Co., Ltd.
InventorYe-Kui Wang
Life of this patent
Estimating the term…
Abstract
A method of decoding implemented by a video decoder is provided. The method includes receiving a bitstream including a coded video sequence start (CVSS) access unit (AU), wherein the CVSS AU contains a picture unit (PU) for each layer, and wherein a coded picture in each PU is a coded layer video sequence start (CLVSS) picture; identifying the coded picture from one of the layers based on a picture order count (POC) value; and decoding the coded picture to obtain a decoded picture.
Claims20
An encoding apparatus, comprising:
- a memory storing instructions;
- one or more processors coupled to the memory, the one or more processors configured to execute the instructions stored in the memory to cause the encoding apparatus to:
- insert a picture unit (PU) containing a coded picture in each layer of a coded video sequence start (CVSS) access unit (AU), wherein the coded picture in each layer is a coded layer video sequence start (CLVSS) picture, wherein the CLVSS picture is associated with a no output before recovery flag, and wherein the no output before recovery flag is equal to 1;
- and
- encode a coded layer video sequence (CLVS) including the CVSS AU into a bitstream.
A non-transitory computer-readable storage medium storing instructions that, wherein executed by one or more processors, cause a video processing apparatus to:
- insert a picture unit (PU) containing a coded picture in each layer of a coded video sequence start (CVSS) access unit (AU), wherein the coded picture in each layer is a coded layer video sequence start (CLVSS) picture, wherein the CLVSS picture is associated with a no output before recovery flag, and wherein the no output before recovery flag is equal to 1;
- and
- encode a coded layer video sequence (CLVS) including the CVSS AU into a bitstream.
A method of transmitting a bitstream, the bitstream comprising:
- a picture unit (PU) containing a coded picture in each layer of a coded video sequence start (CVSS) access unit (AU), wherein the coded picture in each layer is a coded layer video sequence start (CLVSS) picture;
- a no output before recovery flag associated with the CLVSS picture, wherein the no output before recovery flag is equal to 1;
- and
- a coded layer video sequence (CLVS) including the CVSS AU.
Dependencies are inferred from the claim text.