All unidirectional MOQT streams start with a variable-length integer indicating the type of the stream.
| ID | Type |
|---|---|
| 0x05 | FETCH_HEADER (Section 10.4.4) |
| 0x10-0x1D | SUBGROUP_HEADER (Section 10.4.2) |
| 0x2F00 | SETUP (Section 9.4) |
An endpoint that receives an unknown stream type MUST close the session.
Control streams (SETUP) are described in Section 3.3. Data streams (FETCH_HEADER, SUBGROUP_HEADER) are described in Section 10.