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Multimedia Streaming Protocols

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Multimedia Streaming Protocols (MSP) include the MSP framework for developing multimedia streaming applications. MSP contains libraries required for developing media streaming applications and for transmitting real-time data. MSP is available as a Web upgrade on the HP-UX 11i v1 and HP-UX 11i v2 operating systems.

In the HP-UX 11i v2 operating system both the 32-bit and 64-bit versions of MSP libraries are delivered but only the 32-bit version of MSP libraries are delivered in the HP-UX 11i v1 operating system.

Multimedia streaming applications use the following protocols:

  • Real Time Transfer Protocol (RTP)
  • Real Time Streaming Protocol (RTSP)
  • Session Description Protocol (SDP)

MSP contains the following components:

  • The RTP library –
  • The RTSP library –
  • The SDP library –

What Is Included in MSP?

Following are the protocols included in MSP:

  • RTP

    Real Time Transfer Protocol (RTP) is a transport protocol that provides end-to-end network transport functions for applications transmitting data with real-time properties, such as interactive audio and video.

    RTP consists of Real-Time Control Protocol (RTCP), a closely linked protocol, which provides a mechanism for reporting feedback on the transmitted real-time data.

  • RTSP

    Real Time Streaming Protocol (RTSP) controls the transfer of real-time media data and serves as a network-remote-control for multimedia sessions.

  • SDP

    Session Description Protocol (SDP) describes the general real-time multimedia sessions.

Related Documentation

The following documents, available at, provide additional information about MSP and its components:

Technical Support

MSP is supported by HP Worldwide Response Centers for customers with an HP-UX support contract.

Additional product information
Product #: MSP
Version: 1.001
Software specification: HP-UX 11i v1(MSP_B.
HP-UX 11i v2(MSP_B.