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Introduction to the Basic Encoder
Reference Guide: E57xx DSNG and DENG Voyager Encoder
Page 1-7
ST.RE.E10076.3
1.3
Summary of Features
1.3.1 Video
Encoding
MPEG-2 Encoding
The Encoder processes a broadcast-standard video signal into a
compressed encoded bit-stream in accordance with:
•
The MPEG-2 Main profile @ Main level (MP@ML) specification
(ISO/IEC 13818)
•
The MPEG-2 4:2:2
8
profile @ Main Level (422P@ML) specification
(ISO/IEC 13818)
Video Encoding Modes
Either the 4:2:0 or 4:2:2
video encoding modes can be selected. The
coding mode selected affects the compression techniques, encoder delay
and rate control.
Video Inputs
The standard video inputs are:
•
SDI - Serial Digital Interface - ITU-R BT.656-4, part 3 (D1 serial
format) – SMPTE 259 (component only)
•
Composite Analogue (PAL/NTSC)
Video Input Types
The video input types which are supported are:
•
625-line composite PAL-B, -D, -G, -H or -I (ITU-R BT. 624-4)
•
525-line composite NTSC-M (with and without pedestal) or PAL-M
(ITU-R BT. 624-4)
•
Serial digital (ITU-R BT.656-4, part 3) input (D1 serial format) and
(ANSI/SMPTE 259M) (component only)
•
Internal test pattern function
Serial Digital Video Input Error Detection and Handling (EDH)
The serial digital video input supports error detection and handling (EDH)
9
as defined by the specification SMPTE RP 165-1994, ‘Error Detection
Checkwords and Status Flags for Use in Bit Serial Digital Interfaces for
Television’.
Video Encoding Functions
The standard video encoding functions include:
•
Support for all MP@ML and 422P@ML
•
Selectable bit-rate operation, <1.5 Mbit/s - 50 Mbit/s (see Table 1.3)
10
•
Support for the standard set of video picture resolutions (720, 704,
640, 544, 480, 352) in both 625 and 525 line operation. 352 supports
full and half-vertical resolution in both 625 and 525 line operation
8
4:2:2 is only available when software option M2/ESO2/422 is purchased.
9
Error detection and handling is not currently supported.
10
Bit-rates lower than 1.5 Mbit/s are only available when the software option M2/ESO2/PU is purchased.
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