DBE 4120
MPEG-2 Encoder System for Contribution
Configuration
guide
Issued by Network Products Marketing Department
GDBD4120 - 09/1999
THOMSON broadcast systems - All rights reserved
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Features and Capabilities
Video
SDI video input
Selectable vertical sub-sampling for format conversion from 4:2:2 to 4:2:0
300 m cable equalization
Horizontal re-sampling (352, 480, 528, 704, 720)
3 :2 pull down detection (60 Hz only)
Optional:
Composite video input for PAL, SECAM and NTSC (hardware option)
Audio
Two stereo or four mono analogue audio
Or two stereo or four mono digital audio extracted from SDI input
(synchronous 48 KHz 20-bit audio)
Optional:
Four additional stereo audio encoder (AES/EBU or SDI) (hardware option)
Two stereo audio AES/EBU audio inputs (hardware option)
Four additional AES/EBU audio (hardware option, exclusive of composite option)
Data (software option)
RS 232 data link (software option); Data rates: from 1200 to 57600 bauds
Protocol: transparent
TS input
VBI processing (software option)
-
From 50 Hz analogue (PAL, SECAM) source: CEEFAX B, magazine and/or subtitles, 50 Hz
VITC, VPS, Any Monochrome VBI line
-
From 50 Hz SDI source: CEEFAX B, magazine and/or subtitles, 50 Hz DVITC, WSS, VPS
(digitized waveform VBI only), FCP, AFD, Any Monochrome VBI line (digitized waveform VBI
only)
-
From 60 Hz analog (NTSC) source: Any Monochrome VBI line
-
From 60 Hz SDI source: VBI FCP, Any Monochrome VBI line (digitized waveform VBI only)
Compression
Video:
Compliant with MPEG-2 4:2:0 MP@ML and 4:2:2 P@ML as defined by ISO/IEC 13818-2
Bit rate of 1 to 15 Mbps for 4:2:0 and 4 to 50 Mbps for 4:2:2
Adaptive Field/frame DCT coding
Motion compensation: Hierarchical, Field frame
Five-level hierarchical motion estimation
Far-ranging motion vector calculations
Two-pass rate control (except for ultra-low delay mode)
M=1, 2, 3 (0, 1, 2 B-frames)
GOP size N multiple of M, N
≤
24
Non linear adaptive Quantization (taking into account Chrominance)
Intra and non Intra Quantization Weighting Matrix
Optional:
Low and ultra-low delay modes (software option)
