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Fundamentals and Evolution of MPEG-2 Systems: Paving the MPEG Road

by Jan Van der Meer

June 2014

Beginner to intermediate

464 pages

16h 9m

English

Wiley

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1.1 The Scope of This Book1.2 Some DefinitionsReferences
References

3.1 The Need for Compression3.2 MPEG Video3.3 MPEG AudioReferences
4.1 Metadata4.2 Timed Text4.3 Lossless and Scalable Lossless Audio4.4 Multiview Video4.5 3D VideoReferences
6.1 Building an End-to-End System6.2 The Multiplex and Demultiplex Operation6.3 Delivery Schedule of MPEG System Streams6.4 Synchronization of Audio and Video6.5 MPEG-2 System Streams and the STD Model6.6 Timing Issues6.7 Quality of Service Issues6.8 Transport Layer IndependenceReferences
7.1 Driving Forces7.2 Objectives and Requirements7.3 Structure of MPEG-1 System Streams7.4 The MPEG-1 System Target Decoder7.5 The MPEG-1 System Stream7.6 MPEG-1 Applications7.7 Conclusions on MPEG-1References
8.1 Driving Forces8.2 Objectives and Requirements8.3 The Evolution of MPEG-2 SystemsReferences
9.1 Need for Program Streams and Transport Streams9.2 PES Packets as a Common Layer9.3 Program Streams9.4 Transport StreamsReferences
10.1 Support of Conditional Access Systems10.2 Scrambling in Transport Streams10.3 Improving the Interoperability between CA Systems10.4 Scrambling in Program StreamsReference
11.1 Error Resiliency11.2 Re-Multiplexing of Transport Streams11.3 Local Program Insertion in Transport Streams11.4 Splicing in Transport Streams11.5 Variable Bitrate and Statistical Multiplexing11.6 Padding and Stuffing11.7 Random Access and Parsing Convenience11.8 Carriage of Private Data11.9 Copyright and Copy Control Support11.10 Playback Trick Modes11.11 Single Program and Partial Transport Streams11.12 Program Stream Carriage within a Transport Stream11.13 PES Streams11.14 Room for Future ExtensionsReferences
12.1 Introduction to the MPEG-2 STD12.2 The Program Stream STD: P-STD12.3 Transport Stream STD: T-STD12.4 General STD Constraints and Requirements12.5 Content Format Specific STD Issues
13.1 System Time Clock Samples and Time Stamps13.2 PES Packets13.3 Descriptors of Programs and Program Elements13.4 Program Streams13.5 Sections13.6 Transport Streams and Transport PacketsReference
14.1 Introduction14.2 MPEG-114.3 MPEG-214.4 (ITU-T Rec.) H.222.114.5 MHEG14.6 MPEG-414.7 AVC14.8 SVC14.9 3D Video14.10 JPEG 2000 Video14.11 Metadata14.12 Overview of Assigned Stream-type ValuesReferences
Reference
16.1 IP Networks and MPEG-2 Systems16.2 Streaming Over IP16.3 Download16.4 Carriage of MPEG-2 Systems Across IP Networks16.5 Adaptive HTTP StreamingReferences
Reference

Content preview from Fundamentals and Evolution of MPEG-2 Systems: Paving the MPEG Road

10Conditional Access and Scrambling

Why conditional access is important for many MPEG-2 system applications. Scrambling in transport streams and the use of conditional access sections and descriptors. The role of simulcast in transport stream applications. Scrambling in program streams.

10.1 Support of Conditional Access Systems

For many MPEG-2 system applications, unauthorized access to the content carried in an MPEG-2 system stream is to be prevented. For example, content in a Pay TV service should only be available to subscribers to such a service, while an optical disc may contain free content, as well as content that may be accessed only if an additional payment is made. For this purpose, Conditional Access (CA) systems are used. A conditional access system specifies how to encrypt the content at the encoder side prior to its distribution, so as to make the content unreadable by anyone, unless access to the content is granted explicitly by means of providing the information needed to decrypt the content back into the original format. While the specification of CA systems is beyond the scope of MPEG, it should be possible to apply practical CA systems in MPEG-2 system based applications. Therefore the use of CA systems in a MPEG-2 system stream was an important design consideration.

As an example for the use of a CA system in an MPEG-2 system environment, Figure 10.1 depicts a typical conditional access system for an MPEG-2 transport stream, as often applied by Pay TV ...