3.3.5.6 Sending a Stream List Request
The structure and fields of the Stream List Request message are specified in section 2.2.3.5.
The server sends this message to obtain a list of video streams supported by the video capture device. The server MUST send this message only after a successful Activate Device Request (section 3.3.5.5) message and before any Deactivate Device Request (section 3.3.5.21) message.