PUBLISH_NAMESPACE — MoQT draft-14 §9.23.

The publisher sends the PUBLISH_NAMESPACE control message to advertise that it has tracks available within a Track Namespace. The receiver verifies the publisher is authorized to publish tracks under this namespace.

PUBLISH_NAMESPACE Message {
  Type (i) = 0x6,
  Length (16),
  Request ID (i),
  Track Namespace (tuple),
  Number of Parameters (i),
  Parameters (..) ...,
}

Figure 22: MOQT PUBLISH_NAMESPACE Message

Request ID: See Section 9.1.
Track Namespace: Identifies a track's namespace as defined in (Section 2.4.1)
Parameters: The parameters are defined in Section 9.2.1.