1      Definition

An Item represented by a series of Audio-Visual Scene Descriptors during a Time.

2      Functional Requirements

Audio-Visual Event Descriptors contains Audio-Visual Scene Descriptors between two Times.

3      Syntax


4      Semantics

Label Size Description
Header N1 Bytes
·       Standard 9 Bytes The characters “OSD-AVE-V”
·       Version N2 Bytes Major version – 1 or 2 characters
·       Dot-separator 1 Byte The character “.”
·       Subversion N3 Bytes Minor version – 1 or 2 characters
M-InstanceID N4 Bytes Identifier of M-Instance.
AudioVisualEventEventID N5 Bytes Identifier of the Event.
AudioVisualEventSpaceTime N6 Bytes Data about Space and Time
AudioVisualEventSceneDescriptors[] N7 Bytes
·       AVSceneDescriptorsID N8 Bytes Set of AVSceneDescriptors
DescrMetadata N9 Bytes Descriptive Metadata

5      Data Formats

No new Data Formats required.

6      To Respondents

MPAI requests comments on Functional Requirements of Audio-Visual Event Descriptors.