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US 2023/0412823 A1Published application
Methods and apparatus for video usability information (vui) for scalable video coding (svc)
AssigneeInterDigital VC Holdings, Inc.
InventorsJiancong LUO, Lihua ZHU, Peng YIN
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Abstract
There are provided methods and apparatus for video usability information (VUI) for scalable video coding (SVC). An apparatus includes an encoder (100) for encoding video signal data into a bitstream. The encoder specifies video user information, excluding hypothetical reference decoder parameters, in the bitstream using a high level syntax element. The video user information corresponds to a set of interoperability points in the bitstream relating to scalable video coding (340, 355).
Claims20
A method, comprising:
- encoding video signal data into a bitstream, said bitstream including a plurality of operation points;
- encoding at least a syntax element indicating a number of operation points in said bitstream, and
- specifying a plurality of bitstream restriction information using a parameter set,
- wherein a first one of said plurality of bitstream restriction information is specified for a first subset of said plurality of operation points, said first subset of said plurality of operation points corresponding to all layers having a first same temporal level,
- wherein a second one of said plurality of bitstream restriction information is specified for a second subset of said plurality of operation points, said second subset of said plurality of operation points corresponding to all layers having a second same temporal level, and
- wherein each of said plurality of bitstream restriction information specifies one or more of a maximal number of reordering frames and a maximal decoded frame buffer size.
3 more elements
A method, comprising:
- accessing a bitstream including a plurality of operation points;
- decoding at least a syntax element indicating a number of operation points in said bitstream;
- determining a plurality of bitstream restriction information from a parameter set in said bitstream,
- wherein a first one of said plurality of bitstream restriction information is specified for a first subset of said plurality of operation points, said first subset of said plurality of operation points corresponding to all layers having a first same temporal level,
- wherein a second one of said plurality of bitstream restriction information is specified for a second subset of said plurality of operation points, said second subset of said plurality of operation points corresponding to all layers having a second same temporal level, and
- wherein each of said plurality of bitstream restriction information specifies one or more of a maximal number of reordering frames and a maximal decoded frame buffer size;
- and
- decoding at least one operation point from said bitstream.
5 more elements
An apparatus, comprising:
- at least a memory and one or more processors coupled to said at least a memory, wherein said one or more processors are configured to:
- encode video signal data into a bitstream, said bitstream including a plurality of operation points;
- encode at least a syntax element indicating a number of operation points in said bitstream, and
- specify a plurality of bitstream restriction information using a parameter set,
- wherein a first one of said plurality of bitstream restriction information is specified for a first subset of said plurality of operation points, said first subset of said plurality of operation points corresponding to all layers having a first same temporal level,
- wherein a second one of said plurality of bitstream restriction information is specified for a second subset of said plurality of operation points, said second subset of said plurality of operation points corresponding to all layers having a second same temporal level, and
- wherein each of said plurality of bitstream restriction information specifies one or more of a maximal number of reordering frames and a maximal decoded frame buffer size.
4 more elements
An apparatus, comprising:
- at least a memory and one or more processors coupled to said at least a memory, wherein said one or more processors are configured to:
- access a bitstream including a plurality of operation points;
- decode at least a syntax element indicating a number of operation points in said bitstream;
- determine a plurality of bitstream restriction information from a parameter set in said bitstream,
- wherein a first one of said plurality of bitstream restriction information is specified for a first subset of said plurality of operation points, said first subset of said plurality of operation points corresponding to all layers having a first same temporal level,
- wherein a second one of said plurality of bitstream restriction information is specified for a second subset of said plurality of operation points, said second subset of said plurality of operation points corresponding to all layers having a second same temporal level, and
- wherein each of said plurality of bitstream restriction information specifies one or more of a maximal number of reordering frames and a maximal decoded frame buffer size;
- and
- decoding at least one operation point from said bitstream.
6 more elements
Dependencies are inferred from the claim text.