Multisof VIDEO GRABBER Technical Manual
VIDEO GRABBER
Technical Manual
Video Grabber Technical Manual - ver. 1.4
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Version
Date
Description
Author
1.0
27.04.2015
New document
PP
1.1
28.04.2015
Revised to match software version 1.8
PP
1.2
26.10.2015
Revised to match software version 1.10
BG
1.3
20.12.2015
Revised to match software version 1.13
MM
1.4
17.03.2016
Revised to match software version 1.19
MM
Video Grabber Technical Manual - ver. 1.4
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Table of contents
1. Features ....................................................................................................................... 4
1.1. Technical Specification ................................................................................................. 5
2. Video adjustment ......................................................................................................... 6
2.1. Preview & adjust .......................................................................................................... 6
2.2. Extended Display Identification Data (EDID). .............................................................. 7
2.2.1. Calculating custom Modeline. .................................................................................. 9
2.2.2. Modeline string format. ......................................................................................... 11
2.2.3. Deploying custom Modeline using Video Grabber Web Interface. ....................... 14
Appendix A – Video Grabber protocol v2 ................................................................................. 15
Appendix B – Supported resolutions ........................................................................................ 17
Video Grabber Technical Manual - ver. 1.4
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1. Features
Multisoft Video Grabber is a device that captures video signal between Graphics Card and Monitor.
Armed with two DVI-I video sockets, for capturing Analogue (using D-SUB to DVI adaptor or hybrid
cable) as well as digital signal using Digital Virtual Interface cables. Captured video can be send via two
independent Gigabit Ethernet ports to two separated recorders. Video Capturing process is nonintrusive.*
* DDC2B compliant video signal if the Graphics Adapter providing 5V, 700 mA on pin 14 of DVI
connector
Video Grabber Technical Manual - ver. 1.4
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1.1. Technical Specification
Video Grabber VGA / DVI
Video resolution (VGA)
up to 1920x1200 (with pixel clock limitation up to 165 MHz)
Video resolution (SL DVI)
up to 1920x1200
Video resolution (DL DVI)
up to 2560x1600 (2048x2048) (1920x2160)
Captured video format
BMP, PNG, JPEG2000, H.264, Lossless
Operating Temperature
0 – 55 °C
Dimensions
168x168x54 [mm]
Weight
0,9 kg
Power source
DC Adapter 12V, 2A (with optional redundancy)
Video Input/output
2x DVI-I (24 + 5 pin) sockets for capturing video signal (VGA -> DVI
adaptors required for capturing analogue signal; not included)
Output
2x Gigabit Ethernet NIC’s for transferring captured video
Table 1: Technical specification
Video Grabber Technical Manual - ver. 1.4
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2. Video adjustment
2.1. Preview & adjust
In Preview & adjust tab of Video Grabber Web Interface allowing to modify or correct detected video
setting. Because of many manufacturers and display types, detected analogue video parameters are
not always satisfactory. To do this, override video position (VGA only check button must be active).
This option activate captured video positon correction as well as change basic video Modeline settings.
All available options are shown on Figure 1. Screen adjustment.
Figure 1. Screen adjustment
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