IEC 62071:2000

FOREWORD
1 General
    1.1 Scope
    1.2 Normative references
    1.3 Symbols and abbreviations
    1.4 Environment and test conditions
    1.5 Reference tapes
    1.6 Calibration tapes
2 Video cassette
    2.1 Mechanical parameters
    2.2 Video tape specification
3 Helical recordings
    3.1 Tape speed
    3.2 Sectors
    3.3 Record location and dimensions
    3.4 Helical track record tolerance zones
    3.5 Relative positions of recorded information
    3.6 Gap azimuth
    3.7 Transport and scanner
4 Programme track data
    4.1 General
    4.2 ITI sector
    4.3 Audio sector
    4.4 Video sector
    4.5 Subcode sector
    4.6 Edit gap
5 Audio processing
    5.1 Introduction
    5.2 Encoding mode
    5.3 Audio shuffling
    5.4 Audio auxiliary data (AAUX)
    5.5 Error correction code addition
6 Video processing
    6.1 Introduction
    6.2 Video structure
    6.3 DCT processing
    6.4 Quantization
    6.5 Variable length coding (VLC)
    6.6 Arrangement of a compressed macro block
    6.7 Arrangement of a video segment
    6.8 Intraframe deshuffling
    6.9 Video auxiliary data (VAUX)
    6.10 Error correction code addition
7 Subcode processing
    7.1 Introduction
    7.2 Subcode data
    7.3 Error correction code addition
8 Longitudinal tracks
    8.1 Control track
    8.2 Cue track
9 Interface
    9.1 Introduction
    9.2 Data structure
Annex A (normative) Tape tension
Annex B (normative) Cross-tape track measurement
                      technique
Annex C (normative) Track pattern during insert editing
Annex D (normative) Frequency characteristics of the
                      F0 track
Annex E (normative) Digital filter
Annex F (informative) Small cassette adapter
Figures 1 - F.6
Tables 1 - B.1

Specifies the content, format and recording method of the data blocks containing video, audio and associated data which form the helical records on 6.35 mm tape in cassettes as given in SMPTE 306M.