Subpicture signaling in video coding
AssigneeZTE (UK) Limited
InventorPing Wu
Life of this patent
Estimating the term…
Abstract
Methods, apparatus and systems for video bitstream generation and parsing are described. One example method of video bitstream processing includes parsing a header at a video unit level in a video bitstream for a first field indicative of whether the video unit includes multiple network abstraction layer bit units having multiple types, parsing, due to determining that the video unit includes multiple network abstraction layer bit units having multiple types, a second field in the header indicative of whether the video unit comprises an intra random access point, and decoding, based on the first field and the second field, the video bitstream to generate a video.
Claims19
A method of video bitstream processing, comprising:
- parsing a header at a video unit level in a video bitstream for a first field indicative of whether the video unit includes multiple network abstraction layer bit units having multiple types;
- parsing, due to determining that the video unit includes multiple network abstraction layer bit units having multiple types, a second field in the header indicative of whether the video unit comprises an intra random access point;
- and
- decoding, based on the first field and the second field, the video bitstream to generate a video.
A method of encoding a video, comprising;
- including, in a header at a video unit level in a video bitstream, a first field indicative of whether the video unit includes multiple network abstraction layer bit units having multiple types;
- further including, due to determining that the video unit includes multiple network abstraction layer bit units having multiple types, a second field in the header indicative of whether the video unit comprises an intra random access point;
- and
- encoding the video to generate the video bitstream.
A video decoding apparatus comprising a processor configured to perform a method of processing a video bitstream comprising:
- parsing, for decoding a video picture comprising one or more subpictures, a syntax structure to obtain type information about one or more network abstraction layer (NAL) units making up the video picture and whether the video picture is an intra random access picture;
- and
- reconstructing the one or more subpictures based on the parsing.
A computer program product comprising a computer-readable medium having code stored thereon, the code, when executed by a processor, causing the processor to implement a of video parsing, comprising:
- parsing a header at a video unit level in a video bitstream for a first field indicative of whether the video unit includes multiple network abstraction layer bit units having multiple types;
- parsing, due to determining that the video unit includes multiple network abstraction layer bit units having multiple types, a second field in the header indicative of whether the video unit comprises an intra random access point;
- and
- decoding, based on the first field and the second field, the video bitstream to generate a video.
Dependencies are inferred from the claim text.