15 Location timed metadata in the 3GPP File Format

26.2443GPP3GPP file format (3GP)Release 17Transparent end-to-end Packet-switched Streaming Service (PSS)TS

When Location timed metadata is stored in the 3GPP File Fomat, a timed metadata track shall be used with LocationSampleEntry box as described in clause 6.12. The presence of LocationSampleEntry indicates that the metadata sample format are the fields of the Location Information box in Table 8.10 starting from the Role field, i.e. as shown in the table below:

Table 15.1: Location timed metadata Sample Format

Field	Type	Details	Value
Role	Unsigned int(8)	Non-negative value indicating role of location
Longitude	Unsigned int(32)	Fixed-point value of the longitude
Latitude	Unsigned int(32)	Fixed-point value of the latitude
Altitude	Unsigned int(32)	Fixed-point value of the Altitude
Astronomical_body	String	Text of astronomical body
Additional_notes	String	Text of additional location-related information

For the definitions of these fields, see the definitions of the Location Information box in clause 8.2.