I.S. ETS 300 174:1993

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

Covers the coding and transmission of component television signals at bit-rates in the range 34-45 Mbit/s in the format specified by CCIR Recommendation 601.