1 Definition
A Data Type including the arrangement of the Objects and the Scenes of an Audio-Visual Scene.
2 Functional Requirements
Audio-Visual Scene Geometry include:
- The ID of a Virtual Space (M-Instance) where it is or is intended to be located.
- The ID of the Audio-Visual Scene Geometry.
- The number of Objects in the Scene.
- The Space-Time Attributes of the Audio-VisualScene Geometry.
- The Spatial Attitudes and Qualifiers of
- Audio Objects.
- Visual Objects.
- AV Objects.
- The Spatial Attitudes and Qualifiers of
- Audio Scenes.
- Visual Scenes.
- AV Scenes.
3 Syntax
https://schemas.mpai.community/OSD/V1.1/data/AudioVisualSceneGeometry.json
3 Semantics
Label | Size | Description |
Header | N1 Bytes | AV Scene Geometry Header |
– Standard-AVSceneGeometry | 9 Bytes | The characters “OSD-AVG-” |
– 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. |
AVSceneGeometryID | N5 Bytes | Identifier of the AV Object. |
ObjectCount | N6 Bytes | Number of Objects in Scene. |
AVSceneGeometrySpaceTime | N7 Bytes | Space and Time of AV Basic Scene Geometry. |
AVSceneAudioObjects[] | N8 Bytes | Set of Audio Objects. |
– AudioObjectSpaceTime | N9 Bytes | Space and Time of Audio Object. |
– AudioObject | N10 Bytes | Audio Object. |
– AudioObjectQualifiers | N11 Bytes | Qualifiers of Audio Object. |
AVSceneVisualObjects[] | N12 Bytes | Set of Visual Objects |
– VisualObjectSpaceTime | N12 Bytes | Space and Time of Visual Object. |
– VisualObject | N13 Bytes | Visual Object. |
– VisualObjectQualifiers | N14 Bytes | Qualifiers of Visual Object. |
AVSceneAVObjects[] | N15 Bytes | Set of AV Objects |
– AVObjectSpaceTime | N16 Bytes | ID of Attribute of AV Scene Object |
– VisualObject | N17 Bytes | ID of Attribute Format of AV Object |
– AVObjectQualifiers | N18 Bytes | Length of Attribute Format of AV Object |
AVSceneAudioScenes[] | N8 Bytes | Set of Audio Scenes. |
– AudioSceneSpaceTime | N9 Bytes | Space and Time of Audio Scene. |
– AudioScene | N10 Bytes | Audio Scene. |
– AudioSceneQualifiers | N11 Bytes | Qualifiers of Audio Scene. |
AVSceneVisualScenes[] | N12 Bytes | Set of Visual Scene. |
– VisualSceneSpaceTime | N12 Bytes | Space and Time of Visual Object. |
– VisualScene | N13 Bytes | Visual Scene. |
– VisualSceneQualifiers | N14 Bytes | Qualifiers of Visual Scene. |
AVSceneAVScenes[] | N15 Bytes | Set of AV Scene. |
– AVSceneSpaceTime | N16 Bytes | ID of Attribute of AV Scene Scene. |
– VisualScene | N17 Bytes | ID of Attribute Format of AV Scene. |
– AVSceneQualifiers | N18 Bytes | Length of Attribute Format of AV Scene. |
DescrMetadata | N18 Bytes | Descriptive Metadata. |