TANDBERG E5500, Инструкция по эксплуатации, Страница: 16 / 256

Introduction
Page 1-8 Instruction Manual: evolution 5000 E5500 Mobile Contribution Encoder
ST.TM.E10033.3
Video Input Types
The video input types which are supported are:
•
Analogue Composite – 625-line, PAL-B, -D, -G, -H or -I (ITU-R BT.
624-4).
•
Analogue Composite – 525-line, NTSC-M (with or without pedestal)
(ITU-R BT. 624-4).
•
Analogue Component –YP
R
P
B
, PAL 625 line format (ITU-R BT. 601-
5).
•
Analogue Component – YP
R
P
B
, NTSC 525 line (with or without
pedestal), or 525 line (no pedestal, Beta levels) format (ITU-R BT.
601-5).
•
Serial Digital (SDI) – 4:2:2 YC
R
C
B
(ITU-R BT. 656-1 part 3) (“D1”
serial format), SMPTE-259M.
•
Internal test pattern function.
Serial Digital Video Input Error Detection and Handling (EDH)
The serial digital video input supports error detection and handling (EDH)
as defined by the specification SMPTE RP 165-1994, ‘Error Detection
Checkwords and Status Flags for Use in Bit Serial Digital Interfaces for
Television’. Refer to Chapter 4, Equipment Description for further
information.
Video Encoding Functions
The standard video encoding functions include:
•
Support for all MP@ML standard coding modes, (and 422P@ML, if
purchased).
•
Selectable bit-rate operation, 1.5 Mbit/s - 15 Mbit/s.
•
Support for the standard set of video picture resolutions (720, 704,
640, 544, 480, 352 and SIF) in both 625 and 525 line operation.
•
Hierarchical motion estimation.
•
A built in frame resynchroniser to maintain a valid encoded bit-stream
in the event of loss of video.
•
Various low delay modes for delay critical applications.
•
Support for a variety of Group of Pictures (GOP) structures with a
variable number of B frames.
•
Built in patented adaptive noise reduction circuitry.
•
The ability to generate internal video test patterns. These can be
moving, with the ability to load 2 frames.
•
A logo overlay facility whereby the MCE is able to overlay broadcaster’s
logos onto the active video.
•
Various video fail options, eg, freeze frame, cut to black.
Motion Estimation
The MCE uses Hierarchical motion estimation. It takes a macro block (16
pixels x 16 pixels) and then performs a series of exhaustive searches for
that block on areas of increasing resolution homing in on an exact match.