Epiphan VGA2USB Pro User Manual
VGA2USB
Epiphan Frame Grabber User Guide
VGA2USB LR
VGA2USB HR
VGA2USB Pro
KVM2USB
DVI2USB
DVI2USB Solo
DVI2USB Duo
www.epiphan.com
1 February 2009 Version 3.20.2 (Windows) 3.16.14 (Mac OS X)
Thank you for choosing Epiphan!
At Epiphan, product function and quality are our top priority. We make every
effort to make sure that our products exceed our customers expectations. We
regularly contact our customers to ensure product performance and reliability.
We strive to continually enhance our products to accommodate your needs.
Specifications
Epiphan manufactures a wide range of VGA and DVI Frame Grabbers. You can
go to the Frame Grabbers page of the Epiphan website and use the information
in the comparison table to select the optimal Frame Grabber for your
requirements.
Warranty
All Epiphan Systems products are provided with a 100% replacement warranty
for one year from the date of purchase. We welcome your feedback and
suggestions for product improvements. You can email your comments to
info@epiphan.com.
Technical Support
Epiphan is staffed by a professional support team. If, after checking the FAQs
for your product on the Epiphan website and re-installing the Epiphan driver
software, you continue to have outstanding issues, email a problem report to
support@epiphan.com. To help us solve the problem efficiently, include the
following info:
• Your hardware platform and operating system.
• Your product serial number
• The version of the Video capture application and the USB driver that you
are using.
• The behavior of your Frame Grabber product LED indicators.
• Technical description of the VGA or DVI signal source including resolution,
refresh rate, synchronization, type of hardware.
• Complete description of the problem you’re experiencing. If possible please
provide screen captures that show the problem.
Environmental Information
The equipment that you bought has required the extraction and use of natural
resources for its production. It may contain hazardous substances that could
impact health and the environment.
In order to avoid the dissemination of those substances in our environment and
to diminish the pressure on the natural resources, we encourage you to use the
appropriate take-back systems. Those systems will reuse or recycle most of the
materials of your end life equipment in a sound way.
The crossed-out wheeled bin symbol invites you to use those systems.
If you need more information about collection, reuse and recycling systems,
please contact your local or regional waste administration.
You can also contact us for more information on the environmental
performance of our products.
Copyright © 2009 Epiphan Systems Inc.
The names of actual companies and products mentioned herein may be the trademarks
of their respective owners.
Table of Contents
Table of Contents
1. Introduction 7
Comparing Epiphan Frame Grabbers 7
About this Document 9
2. System Requirements 11
3. Installing the Windows VGA2USB/DVI2USB
drivers and application 12
4. Installing the Mac OS X VGA2USB/DVI2USB
drivers and application 14
5. Connecting a VGA2USB Device 16
6. Connecting a DVI2USB Device 18
7. Connecting a DVI2USB Solo Device 20
8. Connecting a DVI2USB Duo Device 22
9. Connecting a KVM2USB Device 24
10. Troubleshooting 26
11. About Epiphan frame grabbing technology 29
The VGA or DVI video source 30
The Frame Grabber 30
The video capture workstation 33
Glossary of Terms 45
User Guide Page 3
Table of Contents
12. Windows video capture application 51
Upgrading to the latest software version 53
Starting the video capture application 54
Common procedures 56
Menus 61
Toolbar 67
Status bar 68
Shortcut keys 69
Recording, display, KVM and sharing options 69
Windows Epiphan USB device driver 76
13. Mac OS X video capture application 79
Upgrading to the latest Mac OS X software version 80
Starting the Mac OS X video capture application 81
Copying, saving, and printing images 83
Menus 84
Toolbar 89
Changing system preferences 90
14. Recording image files 91
Configuring image file recording options 91
Setting display options to change how image files are
recorded 95
Recording image files 95
Viewing saved image files 96
15. Recording videos 97
Recording videos for Windows 2000, XP, or Vista 97
Using a DirectShow application to record video files 107
Recording videos for Mac OS X 110
Recording videos for Linux 114
Page 4 Epiphan Frame Grabber
Table of Contents
16. Web Broadcasting 121
Setting the Display format for web broadcasting 122
Starting a web broadcasting session 123
Viewing a web broadcasting session 124
Changing web broadcasting compression and
performance 125
17. Using the KVM2USB Frame Grabber 129
18. Advanced topics 133
About EDID 133
Configuring image adjustments 136
Configuring DirectShow options 143
Configuring VGA modes 145
Windows command line options 149
About the frame rate 151
Troubleshooting 153
Index 155
User Guide Page 5
Table of Contents
Page 6 Epiphan Frame Grabber
1. Introduction Comparing Epiphan Frame Grabbers
1. Introduction
Epiphan Frame Grabbers are compact external devices that you
can use to capture video images from virtually any VGA or DVI
source. Some example VGA or DVI sources include personal
computers running any version of Windows, Mac OS X, or Linux,
embedded imaging systems, medical imaging systems, scientific
equipment, and more.
Using the Epiphan video capture application installed on a video
capture workstation, you can display, record, and print captured
images and broadcast captured images on the Internet.
Epiphan Frame Grabbers can be used in a wide range of
applications such as:
• Capturing data from a computer screen for educational,
training and diagnostic purposes.
• Capturing and recording data from security cameras
especially high resolution cameras equipped with VGA signal
output.
• Monitoring remote equipment.
• Recording and analyzing data from research and diagnostic
equipment.
• Recording and transmitting data from medical equipment for
remote diagnoses and emergency help services when medical
personnel cannot travel to the patient.
• Quality control and testing.
• Collaborative work.
Comparing Epiphan Frame Grabbers
Epiphan Systems manufactures a wide range of VGA frame
grabbers. If you need to capture images from a VGA stream you
can use Figure 1 to help select the optimal VGA Frame Grabber
for your task.
User Guide Page 7
1. Introduction Comparing Epiphan Frame Grabbers
Figure 1: Comparing Epiphan VGA Frame Grabbers
The VGA Frame Grabber comparison table on the Epiphan VGA
Frame Grabbers web page provides more detailed comparisons of
all Epiphan Frame Grabbers.
If you need to capture images from a DVI stream you can use
Figure 2 to help select the optimal DVI Frame Grabber for your
task.
Figure 2: Comparing Epiphan DVI Frame Grabbers
The DVI Frame Grabber comparison table on the Epiphan DVI
Frame Grabbers web page provides more detailed comparisons of
all Epiphan Frame Grabbers.
Page 8 Epiphan Frame Grabber
1. Introduction About this Document
About this Document
This Epiphan Frame Grabber User Guide describes the basics of how
to install Epiphan Frame Grabbers and how to use the Epiphan
video capture application to capture, record, and broadcast
images captured by any Epiphan Frame Grabber.
This Epiphan Frame Grabber User Guide describes version 3.30.2 of
the Epiphan video capture application. Most of the information in
this document describes the Windows 2000, XP, and Vista
version; however, this document does contain sections and
chapters about the Mac OS X version and most of the information
can be applied to the Linux version.
This document contains the following chapters:
• Chapter 2. “System Requirements” on page 11, describes
hardware and software requirements required to support
Epiphan Frame Grabbers.
• Chapter 3. “Installing the Windows VGA2USB/DVI2USB
drivers and application” on page 12, describes how to install
the Windows VGA2USB/DVI2USB Epiphan device driver
and video capture application.
• Chapter 4. “Installing the Mac OS X VGA2USB/DVI2USB
drivers and application” on page 14, describes how to the
install the Mac OS X VGA2USB/DVI2USB Epiphan drivers
and video capture application.
• Chapter 5. “Connecting a VGA2USB Device” on page 16,
describes how to connect a VGA2USB, VGA2USB LR,
VGA2USB HR, or VGA2USB Pro Frame Grabber to a VGA
source and to a video capture workstation.
• Chapter 6. “Connecting a DVI2USB Device” on page 18,
describes how to connect a DVI 2USB Frame Grabber to a DVI
source and to a video capture workstation.
• Chapter 7. “Connecting a DVI2USB Solo Device” on page 20,
describes how to connect a DVI 2USB Solo Frame Grabber to a
DVI source and to a video capture workstation.
User Guide Page 9
1. Introduction About this Document
• Chapter 8. “Connecting a DVI2USB Duo Device” on page 22,
describes how to connect a DVI 2USB Duo Frame Grabber to a
DVI source and to a video capture workstation.
• Chapter 9. “Connecting a KVM2USB Device” on page 24,
describes how to connect a KVM2USB Frame Grabber to a
headless server and to a video capture workstation.
• Chapter 10. “Troubleshooting” on page 26, describes
troubleshooting a Frame Grabber installation.
• Chapter 11. “About Epiphan frame grabbing technology” on
page 29, describes how the components required for
capturing, displaying, recording, and broadcasting images
from a VGA or DVI source with an Epiphan Frame Grabber
work together.
• Chapter 12. “Windows video capture application” on page 51,
describes the most commonly used functions and features of
the Epiphan Windows video capture application.
• Chapter 13. “Mac OS X video capture application” on page 79,
describes the most commonly used functions and features of
the Epiphan Mac OS X video capture application.
• Chapter 14. “Recording image files” on page 91, describes
how to record the frames captured by your Frame Grabber as
individual image files.
• Chapter 15. “Recording videos” on page 97, describes how to
record the frames captured by your Frame Grabber as an AVI
video file.
• Chapter 16. “Web Broadcasting” on page 121, describes how
to share or broadcast the images captured by your Epiphan
Frame Grabber over the Internet.
• Chapter 17. “Using the KVM2USB Frame Grabber” on
page 129, describes using the KVM2USB Frame Grabber to
connect to and operate a server that normally operates
without a keyboard, monitor, and mouse.
• Chapter 18. “Advanced topics” on page 133, describes special
topics such as upgrading to a new version of the video capture
application, EDID, and configuring image adjustments.
Page 10 Epiphan Frame Grabber
2. System Requirements
2. System Requirements
To get started, make sure your system meets the following
hardware and software requirements:
Hardware Requirements
Video source Any VESA-compatible VGA or DVI source.
Video capture workstation
Processor speed VGA/DVI/KVM2USB: 700 MHz.
VGA2USB LR/HR/Pro, DVI2USB
Solo/Duo: 2.66 GHz.
USB port One USB 2.0 (also supports USB 1.1)
RAM memory VGA/DVI/KVM2USB: 256 MB
VGA2USB LR/HR/Pro, DVI2USB
Solo/Duo: 256 MB DDR2
Hard disk space 5 MB
Software Requirements
Video
capture
workstation
operating
system
VGA2USB/
DVI2USB/
drivers and
application
User Guide Page 11
Windows 2000 SP4, XP SP2, or 32-bit and 64-bit
Vista. See “Installing the Windows
VGA2USB/DVI2USB drivers and application”
on page 12.
Mac OS X 10.3 “Panther” or more recent, see
“Installing the Mac OS X VGA2USB/DVI2USB
drivers and application” on page 14.
Linux 2.6.x (i686 and x86_64).
To download the latest version, browse to
http://www.epiphan.com/products/ and
locate the Downloads page for your product.
(Also includes Linux install instructions.)
3. Installing the Windows VGA2USB/DVI2U SB drivers and application
3. Installing the Windows
VGA2USB/DVI2USB drivers and
application
You must install the VGA2USB/DVI2USB drivers and
application on your Windows video capture workstation before
connecting the Frame Grabber to the workstation USB port. This
single download includes the video capture application and
VGA2USB/DVI2USB USB device drivers.
To install the VGA2USB/DVI2USB drivers and application
1 Download the latest software release to your video capture
workstation. Browse to http://www.epiphan.com/products/
and go to the Download page for your Frame Grabber.
2 Download the latest version of the VGA2USB drivers and
application from the Windows section of the Download page.
Tip: Make sure you note the download destination folder.
3 Unzip the downloaded file. Tip: Right-click on the .zip file and
choose Extract All.
Page 12 Epiphan Frame Grabber
3. Installing the Windows VGA2USB/DVI2U SB drivers and application
4 Run the Setup Utility (setup.exe) and follow the prompts.
5 Connect your Frame Grabber, refer to the appropriate section:
• 5. “Connecting a VGA2USB Device” on page 16
• 6. “Connecting a DVI2USB Device” on page 18
• 7. “Connecting a DVI2USB Solo Device” on page 20
• 8. “Connecting a DVI2USB Duo Device” on page 22
• 9. “Connecting a KVM2USB Device” on page 24
Tip: If, after connecting your Frame Grabber, Windows
displays the Found New Hardware Wizard, respond to the
prompts before continuing with Step 6.
6 Open the Windows Device Manager and confirm that
Windows has detected your product. Tip: Refer to
10. “Troubleshooting” on page 26 if you encounter problems.
User Guide Page 13
4. Installing the Mac OS X VGA2USB/DVI2USB drivers and application
4. Installing the Mac OS X
VGA2USB/DVI2USB drivers and
application
You must install the VGA2USB/DVI2USB software on your Mac
OS X video capture workstation before connecting the Frame
Grabber to the workstation USB port. This single download
includes the video capture application (v2u), the QuickTime
digitizer (vdig), and the VGA2USB/DVI2USB USB device driver.
To install the VGA2USB/DVI2USB drivers and application
1 Download the latest software release to your Mac OS X video
capture workstation. Browse to
http://www.epiphan.com/products/ to locate the Download
page for your Frame Grabber and scroll down to the
Macintosh section.
2 Download the latest version of the drivers and application that
will run on your system. Tip: Make sure you note the
download destination folder.
3 Untar the downloaded file. Tip: Double-click on the .tar file to
unpack it.
4 Double-click on the .pkg file and follow the prompts.
Page 14 Epiphan Frame Grabber
4. Installing the Mac OS X VGA2USB/DVI2USB drivers and application
5 Connect your Frame Grabber, refer to the appropriate section:
• 5. “Connecting a VGA2USB Device” on page 16
• 6. “Connecting a DVI2USB Device” on page 18
• 7. “Connecting a DVI2USB Solo Device” on page 20
• 8. “Connecting a DVI2USB Duo Device” on page 22
• 9. “Connecting a KVM2USB Device” on page 24
6 Open System Profiler and expand the USB Device Tree to
confirm that the device is recognized. Tip: Refer to
10. “Troubleshooting” on page 26 if you have problems.
User Guide Page 15
5. Connecting a VGA2USB Device
5. Connecting a VGA2USB Device
VGA2USB Frame Grabbers (including LR, HR, and Pro) capture
images from most VESA-compatible VGA sources. Using the
Epiphan video capture application installed on a video capture
workstation you can view and record the captured images. This
section shows VGA2USB (including LR, HR, and Pro) package
contents and describes and how to connect a VGA2USB Frame
Grabber to your VGA source and to a video capture workstation.
VGA2USB (including LR, HR, and Pro) package contents
VGA2USB
VGA2USB LR
USB
Cable
Power
Adapter
(LR/HR/Pro)
Page 16 Epiphan Frame Grabber
VGA2USB HR
VGA Cable
VGA2USB Pro
VGA Adapter
VGA Splitter
5. Connecting a VGA2USB Device
To connect a VGA2USB (including LR, HR, and Pro)
USB
Cable
Video Capture
Workstation
Equipment with
VGA Signal Output
VGA
Cable
Make sure that the video capture application is installed on the
video capture workstation before connecting the Frame Grabber.
1 If you are connecting a VGA2USB LR, HR, or Pro Frame
Grabber, connect the power adapter to the Frame Grabber.
2 Use the VGA cable to connect the VGA signal output source to
the Frame Grabber VGA port.
VGA Signal
Output
VGA Input
You can use a VGA splitter to split the VGA signal between an
external monitor and the Frame Grabber, (not recommended).
You can also use the VGA adaptor if your VGA signal output
source has a male connector.
3 Use the USB cable to connect the Frame Grabber to a USB 2.0
port on the video capture workstation.
Power Input
(LR/HR/Pro)
Power/Status/
Capture LEDs
USB Output
User Guide Page 17
USB Input
6. Connecting a DVI2USB Device
6. Connecting a DVI2USB Device
The DVI2USB Frame Grabber
captures images from most
VESA-compatible DVI sources. You can also use the DVI2USB
Frame Grabber to capture VGA images from most
VESA-compatible VGA sources
using a VGA to DVI cable.
Using the Epiphan video capture application installed on a video
capture workstation, you can view and record the captured
images.
This section shows DVI2USB package contents and describes how
to connect a DVI2USB
Frame Grabber
to a DVI or VGA source
and to a video capture workstation.
DVI2USB package contents
DVI2USB
USB
Cable
DVI Cable
Power
Adapter
DVI to
VGA Cable
Page 18 Epiphan Frame Grabber
VGA Adapter
VGA Splitter
6. Connecting a DVI2USB Device
g
To connect a DVI2USB
Equipment with
nal Output
DVI Si
DVI
Cable
USB
Cable
Video Capture
Workstation
Make sure that the video capture application is installed on the
video capture workstation before connecting the DVI2USB Frame
Grabber.
1 Connect the power adapter to the DVI2USB Frame Grabber.
2 Use the DVI cable to connect the DVI signal output source to
the DVI2USB DVI port.
DVI Signal
Output
DVI Input
If you are connecting the VGA2USB Frame Grabber to a VGA
source, use the DVI to VGA cable to connect the VGA signal
output source to the DVI2USB DVI port.
3 Use the USB cable to connect the DVI2USB to a USB 2.0 port on
the video capture workstation.
Power Input
USB Input
Power/Status/
USB Output
Capture LEDs
User Guide Page 19
7. Connecting a DVI2USB Solo Device
7. Connecting a DVI2USB Solo
Device
THe DVI2USB Solo Frame Grabber
VESA-compatible DVI sources.
application installed on a video capture workstation, you can
view and record the captured images.
This section shows DVI2USB Solo package contents and describes
how to connect a DVI2USB Solo to a DVI source and to a video
capture workstation.
DVI2USB Solo package contents
DVI2USB Solo
DVI Cable
captures images from most
Using the Epiphan video capture
USB
Cable
Page 20 Epiphan Frame Grabber
Power
Adapter
7. Connecting a DVI2USB Solo Device
To connect a DVI2USB Solo
DVI Cable USB
Cable
Equipment with
DVI Signal Output
Video Capture
Workstation
Make sure that the video capture application is installed on the
video capture workstation before connecting the DVI2USB Solo
Frame Grabber.
1 Connect the power adapter to the DVI2USB Solo Frame
Grabber.
2 Use the DVI cable to connect the DVI signal output source to
the DVI2USB Solo DVI port.
DVI
DVI Signal
Output
Input
3 Use the USB cable to connect the DVI2USB Solo to a USB 2.0
port on the video capture workstation.
Power Input
USB Input
Power/Status/
Capture LED
USB Output
User Guide Page 21
8. Connecting a DVI2USB Duo Device
8. Connecting a DVI2USB Duo
Device
The DVI2USB Duo Frame Grabber
VESA-compatible dual-link DVI sources.
video capture application installed on a video capture
workstation you can view and record the captured images.
This section shows DVI2USB Duo package contents and describes
how to connect a DVI2USB Duo to a dual-link DVI source and to
a video capture workstation.
DVI2USB Duo package contents
DVI2USB Duo
Dual-Link
DVI Cable
captures images from most
Using the Epiphan
USB
Cable
Page 22 Epiphan Frame Grabber
Power
Adapter
8. Connecting a DVI2USB Duo Device
To connect a DVI2USB Duo
Dual-link
DVI Cable
Equipment with Dual-link
DVI Signal Output
USB
Cable
Video Capture
Workstation
Make sure that the video capture application is installed on the
video capture workstation before connecting the DVI2USB Duo
Frame Grabber.
1 Connect the power adapter to the DVI2USB Duo Frame
Grabber.
2 Use the dual-link DVI cable to connect the dual-link DVI signal
output source to the DVI2USB Duo dual-link DVI port.
Dual-link
DVI Signal
Output
Dual-link
DVI Input
3 Use the USB cable to connect the DVI2USB Duo to a USB 2.0
port on the video capture workstation.
Power Input
Power/Status/
USB Output
Capture LEDs
USB Input
User Guide Page 23
9. Connecting a KVM2USB Device
9. Connecting a KVM2USB Device
The KVM2USB Frame Grabber provides full Keyboard-VideoMouse (KVM) capabilities so that you can use the KVM2USB to
manage a headless server from an administrator’s PC. The
headless server can be a PC running Windows, Linux, or
Mac OS X. The administrator’s PC can be running Windows or
Mac OS X.
• If the headless server has a VGA port and PS2 mouse and
keyboard ports you can connect the KVM2USB directly.
• The KVM2USB also comes with PS/2 to USB adapters that
you can use if the headless server only has USB ports for
mouse and keyboard connections.
• The KVM2USB video connector is a VGA connector.
However, the KVM2USB is compatible with most DVI to VGA
adapters if the headless server has a DVI port.
This section shows KVM2USB package contents and describes
how to connect a KVM2USB to a headless server and to the
administrator’s PC.
KVM2USB package contents
KVM2USB
USB
Cable
Page 24 Epiphan Frame Grabber
KVM Cable
9. Connecting a KVM2USB Device
To connect a KVM2USB
Keyboard
Video
Mouse (KVM)
USB Cable
Headless
Server
Administrator’s
PC or laptop
Make sure that the video capture application is installed on the
video capture workstation before connecting the KVM2USB
Frame Grabber.
1 Connect the multi-connector end of the KVM cable to the
Headless server keyboard, video, and mouse ports. Use PS/2
to USB and DVI to VGA adapters if required.
2 Connect the single-connector end of the KVM cable to the
KVM2USB KVM input port.
VGA Signal
Keyboard
and Mouse
Connections
Output
KVM Input
3 Use the USB cable to connect the KVM2USB to a USB 2.0 port
on the administrator’s PC.
Power Input
USB Input
Status/
USB Output
Capture LED
4 Start the video capture application and use the options on the
KVM menu to start and stop KVM operation.
User Guide Page 25
10. Troubleshooting
10.Troubleshooting
If you experience any difficulty installing your Frame Grabber,
review the following items prior to contacting technical support:
• Confirm that the Frame Grabber is connected to a USB 2.0
port. As shown below, Windows Device Manager reports a
USB 2.0 port as an Enhanced Host Controller and Macintosh
System Profiler reports a USB 2.0 port as a High-Speed Bus.
USB 2.0 ports on Windows and Mac OS X
Mac OS X System Profiler
Windows Device Manager
For additional assistance with USB driver troubleshooting,
browse to http://www.epiphan.com/products/ and locate
the Download page for your Frame Grabber.
• If included in the Frame Grabber package, always use the
power adapter to ensure your Frame Grabber is receiving
sufficient power. Also, plug in the power before connecting
the Frame Grabber to your equipment.
• Observe the behavior of your Frame Grabber LED indicators
before requesting support. See “VGA2USB, DVI2USB, and
KVM2USB LEDs” on page 27 for LED information.
• Whenever possible, when splitting VGA connections, use an
active VGA splitter rather than a VGA Y-adapter to help
maintain a cleaner video signal.
Page 26 Epiphan Frame Grabber
10. Troubleshooting
• If, after following the installation steps, you are still having
problems, close all applications and restart the video capture
workstation. When the workstation comes back online, open
the Windows Device Manager or Mac OS X System Profiler to
confirm that the Frame Grabber is detected.
VGA2USB, DVI2USB, and KVM2USB LEDs
LED Activity Description
Power
(PWR)
Red Normal operation, the Frame Grabber is
receiving power.
Off Power is disconnected from the Frame
Grabber.
Capture
(CAP)
Status
(STAT)
Flashing
Amber
The video capture application is running
and has found the Frame Grabber. The
Frame Grabber is capturing images.
On The Frame Grabber is not receiving a
VGA/DVI signal, or cannot adjust video
capture parameters.
Off The Frame Grabber is not recognized by
the operating system.
Flashing
Green
Normal operation, the Frame Grabber is
initialized and ready to capture.
User Guide Page 27
10. Troubleshooting
Page 28 Epiphan Frame Grabber
11. About Epiphan frame grabbing technology
11.About Epiphan frame grabbing
technology
This chapter describes how the components required for
capturing, displaying, recording, and broadcasting images from a
VGA or DVI source with an Epiphan Frame Grabber work
together. This chapter also contains a glossary of the terms used
in this document.
This chapter contains the following sections:
• The VGA or DVI video source
• The Frame Grabber
• The video capture workstation
• Glossary of Terms
Capturing, displaying, recording, and broadcasting VGA or DVI
images requires the following components:
• A VGA or DVI video source to capture images from.
• An Epiphan Frame Grabber that captures images from the
video source.
• A video capture workstation that displays, records, and
broadcasts the images captured by the Frame Grabber.
Figure 3: Capturing, displaying, and recording images
VGA, DVI or
Dual-DVI
Cable
Video Source
(Equipment with VGA, DVI, or
Dual-DVI Output)
User Guide Page 29
Epiphan
Frame Grabber
USB Cable
Video Capture
Workstation
(Display, Record, and Broadcast
Captured images)
11. About Epiphan frame grabbing technology The VGA or DVI video source
The VGA or DVI video source
Image capture begins with a VESA-compatible VGA, DVI, or
dual-DVI video source. Virtually all personal computers as well
as almost any device that displays images includes a VESAcompatible VGA or DVI video connection that you can connect an
Epiphan Frame Grabber to. To capture the video images from a
VGA or DVI source you connect the video source directly to a
suitable Epiphan Frame Grabber using a suitable cable.
Figure 4: Video source (VGA, DVI, or dual-DVI output)
Video Source
(Equipment with VGA, DVI, or
Dual-DVI output)
Epiphan Frame Grabbers can capture video in a wide range of
video formats including analog and digital video formats,
resolutions from 640 x 480 to 2048 x 2048, frame rates up to 12 fps
at 2048 x 2048 resolution and up to 60 fps at 1024 x 768. For
information about all of the video source features that Epiphan
Frame Grabbers support, see the Frame Grabbers Comparison
Table on the Epiphan Web Site.
The Frame Grabber
The Frame Grabber that you select depends on the video format
produced by the video source. You can connect the basic
VGA2USB Frame Grabber to most VGA video sources and
successfully capture images.
For high resolution images or high frame rates, you should
upgrade to the VGA2USB LR, HR, or Pro, depending on your
detailed video format, frame rate, and resolution requirements
and budget. See the Frame Grabbers Comparison Table on the
Page 30 Epiphan Frame Grabber
Loading...