Definitions
Avatar is a Visual Object composed of Avatar Model, Body Descriptors, and Face Descriptors. Its Format is identified by the FormatID.
Avatar Model is a Visual Object whose Format is identified by FormatID.
Portable Avatar is a Data Type that includiesAvatar ID, Time, Audio-Visual Scene Descriptors, Spatial Attitude, Avatar Model, Body Descriptors, Face Descriptors, Language Preference, Speech Coding, Speech Data, Text, and Personal Status.
Syntax of Portable Avatar
https://schemas.mpai.community/PAF/V1.1/data/PortableAvatar.json
Semantics of Portable Avatar
| Label | Size | Description |
| HEADER | 9 Bytes | |
| · Standard | 7 Bytes | The string PAF-PAF |
| · Version | 1 Byte | Major version |
| · Subversion | 1 Byte | Minor version |
| PAFID | 16 Bytes | UUID Identifier of Portable Avatar set. |
| Time | 17 Bytes | Collects various data expressed with bits |
| · TimeType | 0 bit | 0=Relative: time starts at 0000/00/00T00:00
1=Absolute: time starts at 1970/01/01T00:00. |
| · Reserved | 1-7 bits | reserved |
| · StartTime | 8 Bytes | Start of current Portable Avatar (µs). |
| · EndTime | 8 Bytes | End of current Portable Avatar (µs). |
| AudioVisualSceneDescriptors | N5 Bytes | Descriptors of the AV Scene. |
| Avatar | ||
| AvatarID | N0 Bytes | ID of the Avatar |
| SpatialAttitude | N1 Bytes | Spatial Attitude of Avatar in AV Scene. |
| AvatarModel | N2 Bytes | Model of Avatar. |
| BodyDescriptors | N3 Bytes | Body Descriptors of Avatar. |
| FaceDescriptors | N4 Bytes | Face Descriptors of Avatar. |
| Language | 2 Bytes | Language Preference of Avatar. |
| Speech | ||
| SpeechType | 3 Bytes | Speech Data representation method |
| Speech | N6 Bytes | Speech in the StartTime-EndTime period. |
| Text | N7 Bytes | Text in the StartTime-EndTime period. |
| PersonalStatus | N8 Bytes | Personal Status of Avatar. |
