ETS 300 174 : 20001

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
  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

Constitutes a common standard for the coding and transmission of component television signals at bit rates in the range of 34-45 Mbit/s. Embraces the coding algorithm needed for digital picture coding at about 34 and 35 Mbit/s, and their interfaces with the transmission network.