Back to Search Document details
18th Meeting: Teleconference, April 2020 2020-04-24 12:11
AHG9: On Video Usability Information
Authors: Virginie Drugeon Panasonic
Abstract
This document is Draft 3 of a standard that specifies the syntax and semantics of video usability information (VUI) parameters and supplemental enhancement information (SEI) messages for use with coded video bitstreams. The VUI parameters and SEI messages defined in this draft standard may be conveyed within coded video bitstreams in a manner specified in a video coding specification or may be conveyed by other means as determined by the specifications for systems that make use of such coded video bitstreams. This draft standard is particularly intended for use with coded video bitstreams as specified by Rec. ITU-T H.VVC ISO/IEC 23090-3, although it is drafted in a manner intended to be sufficiently generic that it may also be used with other types of coded video bitstreams.
Meeting Notes
JVET-R0090 AHG9: On Video Usability Information [V. Drugeon (Panasonic)]

In the current specification text, the parsing of the VUI syntax structure has a dependency on two external variables (GeneralProgressiveSourceFlag and GeneralInterlacedSourceFlag), which is undesirable. It is suggested to signal these two external variables as syntax elements within the VUI syntax structure. Currently the corresponding information is signalled within the general_constraint_info syntax structure. It is suggested to either move this information from the general_constraint_info syntax structure to the VUI syntax structure, or at least repeat the information within the VUI syntax structure.

Decision (bug fix): Adopt (moving the two flags into the VUI specification as proposed), but expressing the constraint on the presence of the frame-field information SEI message in the VVC spec.

References:
JVET-N1001 JVET-P0337 JVET-P0359 JVET-P0450 JVET-P0462 JVET-P0597 JVET-Q0042 JVET-Q0343 JVET-Q0818
Cited:
JVET-R2001 JVET-R2007 JVET-S0002 JVET-S0003 JVET-S0052 JVET-S0085 JVET-S0123 JVET-S0152 JVET-S0161 JVET-S0171 JVET-S0172 JVET-S0187 JVET-S0229 JVET-S0248 JVET-S0256 JVET-S0266 JVET-S0269 JVET-S2001 JVET-S2007
ARCHIVE v2 :
JVET-R0090-v1.docx JVET-R0090-v1_Spec_based_on_JVET-Q2007-v5.docx JVET-R0090-v2.docx JVET-R0090-v2_based_on_JVET-Q2001-vE.docx JVET-R0090-v2_based_on_JVET-Q2007-v6.docx
Decisions
adopted
Decision (bug fix): Adopt (moving the two flags into the VUI specification as proposed), but expressing the constraint on the presence of the frame-field information SEI message in the VVC spec.
Citation