Question: When utilizing Secure Token Key Messages (STKMs) for end-to-end Packet-switched Streaming Service (PSS), what is a requirement for the RTSP session setup in relation to each STKM media description in the Session Description Protocol (SDP) description?
Option 1: A control URI must be present for each STKM media description.
Option 2: An additional TCP port must be allocated for each STKM stream.
Option 3: The SDP description should omit STKM details for streamlined setup.
Option 4: A separate RTSP session is required exclusively for STKM negotiation.
Explanation: This reflects the necessity of including a specific control Uniform Resource Identifier (URI) for each STKM media component in the Session Description Protocol (SDP) setup, ensuring proper establishment and management of the STKM session alongside the RTSP session, facilitating secure streaming.