1 Definition
An Item represented by a series of Audio-Visual Scene Descriptors for a certain duration (from a start Time to an end Time).
2 Functional Requirements
Audio-Visual Event Descriptors contains Audio-Visual Scene Descriptors between two Times.
3 Syntax
https://schemas.mpai.community/OSD/V1.1/data/AudioVisualEventDescriptors.json
4 Semantics
| Label | Size | Description |
| Header | N1 Bytes | Audio-Visual Event Descriptors Header |
| · 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 |
| MInstanceID | N4 Bytes | Identifier of M-Instance. |
| AVEventID | N5 Bytes | Identifier of the Event. |
| AVEventSpaceTime | 17 Bytes | Data about start and end Space-Time. |
| AVSceneDescriptors[] | N6 Bytes | Collection of AV Scene Descriptors in Start Time and End Time |
| · AVSceneDescriptors | N7 Bytes | Set of AV Scene Descriptors of IDs. |
| DescrMetadata | N8 Bytes | Descriptive Metadata |
