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AHG9: A few more general constraints flags
Abstract
This contribution proposes the following regarding general constraint flags:
JVET-Q0114 AHG9: A few more general constraints flags [Y.-K. Wang (Bytedance)]
This contribution proposes the following regarding general constraint flags:
- Remove frame_only_constraint_flag, which is redundant to general_frame_only_constraint_flag.
- Add a general constraint on no tile partitioning (i.e., one tile only for each picture).
- Add a general constraint on no slice partitioning (i.e., one slice only for each picture).
- Add a general constraint on no subpicture partitioning (i.e., one subpicture only for each picture).
- Add a general constraint on no reference picture resampling.
- Add general_non_projected_constraint_flag, the value equal to 1 specifies that there is no omnidirectional projection SEI messages, and change the semantics of general_non_packed_constraint_flag to cover only frame packing, as frame packing and no omnidirectional projection can be independently applied.
It was asked whether constraints should be on the result expressed by syntax (e.g., one tile) or on the way that result is expressed in the syntax (e.g., there are several different ways that the syntax may result in only having one tile). That can be a matter for further study.
Decision (cleanup): Adopt. Text in contribution. Proponent responsible for software.
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adopted
Decision (cleanup): Adopt. Text in contribution. Proponent responsible for software.
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