[MS-MSSO]: Media Streaming Server System Overview Intellectual Property Rights Notice for Protocol Documentation . Technical Documentation. Microsoft publishes Open Specifications documentation for protocols, file formats, languages, standards as well as overviews of the interaction among each of these technologies. Copyrights. This documentation is covered by Microsoft copyrights. Regardless of any other terms that are contained in the terms of use for the Microsoft website that hosts this documentation, you may make copies of it in order to develop implementations of the technologies described in the Open Specifications and may distribute portions of it in your implementations using these technologies or your documentation as necessary to properly document the implementation. You may also distribute in your implementation, with or without modification, any schema, IDL’s, or code samples that are included in the documentation. 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This Open Specification is preliminary documentation for this technology. Since the documentation may change between this preliminary version and the final version, there are risks in relying on preliminary documentation. To the extent that you incur additional development obligations or any other costs as a result of relying on this preliminary documentation, you do so at your own risk. 1 / 71 [MS-MSSO] Media Streaming Server System Overview Copyright © 2009 Microsoft Corporation. Release: Tuesday, March 31, 2009 Abstract A streaming media system is a system designed to distribute digital media content from an encoder or a capture application to a media server, and finally, to a media player for rendering or playback of that content. The Media Streaming Server System protocols are a series of protocols designed to achieve that task. This document serves as a companion document to the protocol and data structure specifications included in the Media Streaming Server System protocol documentation set. It provides an overview of the Windows Media protocols that are implemented in the Windows Server operating systems and that are used to interoperate or communicate with Windows client operating systems. This document describes the intended functionality of the Media Streaming Server System and how it interacts with systems or applications that need to stream media. As mentioned, the Media Streaming Server System supports multiple protocols for streaming digital media to and from a media server. This document identifies those supported protocols and how they interact in a combined system. Date Comments 2009.03.31 First draft. 2 / 71 [MS-MSSO] Media Streaming Server System Overview Copyright © 2009 Microsoft Corporation. Release: Tuesday, March 31, 2009 Table of Contents Table of Contents .......................................................................................................... 3 1 Introduction ............................................................................................................ 6 1.1 Glossary .............................................................................................................. 6 1.2 References ........................................................................................................... 7 1.2.1 Normative References ...................................................................................... 7 1.2.2 Informative References .................................................................................... 8 2 Overview ............................................................................................................... 10 2.1 System Summary ............................................................................................... 10 2.2 List of Member Protocols ...................................................................................... 10 2.3 Relevant Standards ............................................................................................. 11 3 Foundation ............................................................................................................ 12 3.1 Background Knowledge and System-Specific Concepts ............................................ 12 3.1.1 Digital Rights Management ............................................................................. 12 3.1.2 Encoders ...................................................................................................... 13 3.1.3 Live Broadcast .............................................................................................. 13 3.1.4 Media Clients ................................................................................................ 13 3.1.5 On Demand Broadcast ................................................................................... 13 3.1.6 Origin Servers ............................................................................................... 13 3.1.7 Distribution Server ........................................................................................ 13 3.1.8 Proxy Servers ............................................................................................... 14 3.1.9 Packet-Pair Bandwidth Estimation.................................................................... 15 3.1.10 Fast Start ..................................................................................................... 15 3.1.11 Advanced Fast Start ...................................................................................... 16 3.1.12 Unicast Streaming ......................................................................................... 16 3.1.13 Multicast Streaming ....................................................................................... 18 3.1.14 UDP Packets ................................................................................................. 18 3.1.15 TCP Packets .................................................................................................. 19 3.2 System Purposes ................................................................................................ 19 3.3 System Use Cases .............................................................................................. 19 3.3.1 Stakeholders and Interests Summary .............................................................. 19 3.3.2 Supporting Actors and System Interests Summary ............................................ 20 3.3.3 Use Case Diagrams........................................................................................ 20 3.3.4 Use Case Descriptions .................................................................................... 22 3.3.4.1 Publish Content to Media Server – Encoder ................................................. 22 3.3.4.2 Publish Secure Content to Media Server – DRM Packager .............................. 24 3.3.4.3 Stream Content from Media Server – Media Player ....................................... 24 3.3.4.4 Request License from License Server – Media Player .................................... 25 3.3.4.5 Log Statistics to Servers – Media Player ...................................................... 26 4 System Context ..................................................................................................... 27 4.1 System Environment ........................................................................................... 29 4.1.1 Authentication .............................................................................................. 30 4.1.2 Media Player ................................................................................................. 30 4.1.3 Encoder ......................................................................................................