Foreword
1 Scope
2 Normative references
3 Definitions, symbols and abbreviations
3.1 Arithmetic operators
3.2 Relational operators
3.3 General abbreviations and usage
4 Summary specification of component tv codecs for
34 - 45 Mbit/s
5 Video coding and DCT transformation
5.1 Coding modes
5.2 Discrete cosine transform
5.3 Prediction of the block
5.4 Motion compensation
6 Quantisation of DCT coefficients
6.1 AC coefficient quantisation
6.2 DC-coefficient quantisation
6.3 Inverse quantisation
7 Variable length coding for DCT coefficients and motion
vector differences
7.1 Scanning path for quantised DCT values
7.2 Assignment of codewords to quantised values and run
lengths
7.3 Coding of the motion vectors
8 Video framing and forward error correction
8.1 Video framing
8.2 Forward error protection and correction
9 Additional services
9.1 Audio
9.2 Supervision channel
9.3 Transmission frame for teletext and other digital
data inserted during field blanking
intervals
9.4 Transmission format of test lines in a 128 kbit/s
channel
9.5 Transmission of 80-bit serial time code in a
dedicated 8 kHz channel
10 Service multiplex
10.1 Introduction
10.2 TV container
11 Network adaptation
11.1 Network adaptation to 34368 kbit/s CCITT
Recommendation G.751 frame
11.2 Network adaptation of 686 octet containers to
44736 kbit/s CCITT Recommendation G.752 frame
11.3 Network adaptation to SDH
12 Scrambling for conditional access of transmitted data
12.1 General description of the access control system
12.2 The pseudo-random generator
12.3 PRG initialisation parameters
12.4 Performance of the PRG
12.5 Generating scrambling sequences with the PRG
12.6 Conditional access system
12.7 Interface between codec and access control system
Annex A (informative): Recommended features
A.1 Introduction
A.2 Mode choice
A.3 Refresh strategy
A.4 Motion estimation
A.5 Truncation or rounding of coefficients
A.6 Buffer regulation
A.7 Criticality
A.8 Error concealment
A.9 Transmission of PAL signals
Annex B (informative) Transmission of composite signals
using the component tv codec
B.1 Introduction
B.2 PAL and NTSC
B.3 SECAM
Annex C (informative) Access control management
C.1 Introduction
C.2 Message format
C.3 Control words transfer using ECM
Annex D (informative) Network adaptation to SDH VC-2 5C
History