HELICAL-SCAN COMPRESSED DIGITAL VIDEO CASSETTE SYSTEM USING 6,35 MM MAGNETIC TAPE - FORMAT D-12 - PART 2: COMPRESSION FORMAT
International Electrotechnical Committee
FOREWORD
1 Scope
2 Normative references
3 Abbreviations and acronyms
4 Data processing
4.1 General
4.1.1 Video encoding parameter
4.1.2 Audio encoding parameter
4.1.3 Subcode data
4.1.4 Frame structure
4.2 Data structure
4.3 Header section
4.3.1 ID
4.3.2 Data
4.4 Subcode section
4.4.1 ID
4.4.2 Data
4.5 VAUX section
4.5.1 ID
4.5.2 Data
4.6 Audio section
4.6.1 ID
4.6.2 Data
4.7 Video section
4.7.1 ID
4.7.2 Data
5 Video compression
5.1 Video structure
5.1.1 Video sampling structure
5.1.2 DCT block
5.1.3 Macro block
5.1.4 Super block
5.1.5 Definition of super block number, macro block
number and value of the pixel
5.1.6 Definition of video segment and compressed
macro block
5.2 DCT processing
5.2.1 DCT mode
5.2.2 Weighting
5.2.3 Output order
5.3 Quantization
5.3.1 Introduction
5.3.2 Bit assignment for quantization
5.3.3 Quantization step
5.4 Variable length coding (VLC)
5.5 Arrangement of a compressed macro block
5.6 Arrangement of a video segment
Annex A (informative) Block diagram of D-12 recorder
Annex B (normative) Digital filter for sampling-rate
conversion
Annex C (informative) Relation to IEC 61834-3
Bibliography
Defines the data structure for the interface of DV-based digital audio, subcode data, and compressed video at 100 Mb/s. It defines the processes required to decode the DV-based data structure into eight channels of AES-3 digital audio at 48 kHz, subcode data, and high-definition video at 1080/60i, 1080/50i, and 720/60p.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 100 |
