Introduction to Digital TV Transmission Technique
MTD200 MPEG Test Decoder User Manual
1–5
MPEG-2 Systems
This section describes the structure of a transport stream starting with decoding.
The individual steps required for decoding a program are illustrated and the
relevant elements of the data stream required are explained. Figure 1–2 presents
an overview of the steps involved. The following subsections describe the
decoding steps. The most important syntax elements are given in Figure 1–4
through Figure 1–10 starting on page 1–11.
Program Clock Reference (PCR),
time stamps of elementary streams
(PTS + DTS)
Service Information (SI)
transport_scrambling_control,
Conditional Access Table
(CAT)
Packet IDentification
(PID)
Program Specific Information (PSI)
(PAT + PMTs)
Sync Byte 0x47
Synchronization
of a program
Decoding additional data
Descrambling, if required
Accessing a program
Read-out of transport stream
contents
Transport stream
synchronization
Procedure
Required elements
of the data stream
Figure 1–2: Functions of a transport stream demultiplexer
Summary of Contents for MTD200
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