VGA Broadcaster User Guide

VGA Broadcaster User Guide
www.epiphan.com
VGA Grid™
User Guide
Epiphan Technical
Documentation
©2012
Epiphan Systems Inc.
All Rights Reserved
August 2012
Thank you for choosing Epiphan!
At Epiphan Systems Inc. (“Epiphan”), product function and quality are our top
priority. We make every effort to make sure that our products exceed our
customers’ expectations.
Product Feedback
We regularly contact our customers to ensure product performance and
reliability. We strive to continually enhance our products to accommodate your
needs. We welcome your feedback and suggestions for product improvements.
You can email your comments to [email protected]
Specifications
You can go to the VGA Grid page of the Epiphan website to get information
about the VGA Grid.
Warranty
All Epiphan Systems products are provided with a 100% return to depot
warranty for one year from the date of purchase.
Technical Support
Epiphan is staffed by a professional support team. If, after checking the FAQs
for your product on the Epiphan website you continue to have outstanding
issues, email a problem report to [email protected] To help us solve the
problem efficiently, include the following info:
Your VGA Grid serial number.
The behavior of your VGA Grid LED indicators.
Technical description of the signal source including resolution, refresh rate,
synchronization, type of hardware.
Complete description of the problem you are experiencing.
Copyright © 2012 Epiphan Systems Inc. All Rights Reserved.
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Copyright © 2012 Epiphan Systems Inc. All Rights Reserved.
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VGA Grid User Guide
<Table of Contents
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VGA Grid User Guide
1 Table of Contents
1
2
3
4
5
6
7
8
Table of Contents ........................................................................................ 1
Overview ..................................................................................................... 5
2.1
Introduction............................................................................................ 5
2.2
Available Product Configurations ........................................................... 7
Physical Attributes ...................................................................................... 8
3.1
System Hardware Features .................................................................... 8
3.1.1 VGA Grid Concentrator Hardware Features .......................................... 8
3.1.2 VGA Grid Remote Acquisition Device Hardware Features ..................... 9
3.2
Cables, Connectors and Adapters ........................................................ 11
3.2.1 3.5 mm Mini-jack ................................................................................. 11
3.2.2 VGA to DVI Cable ................................................................................. 12
3.2.3 DVI to DVI Cable ................................................................................... 13
3.2.4 HDMI to DVI Adapter ........................................................................... 14
3.2.5 RJ-45 Male ............................................................................................ 14
Getting Started .......................................................................................... 15
4.1
Powering on the system ....................................................................... 15
4.2
Network Connections ........................................................................... 15
4.3
Logging into the Web Admin Interface ................................................ 15
4.3.1 Epiphan’s Network Discovery Utility. ................................................... 16
4.3.2 Logging into the Web Admin Interface Using a Web Browser and the IP
Address of the System ....................................................................................... 16
4.4
Users Logging ....................................................................................... 17
4.4.1 The Administrator User ........................................................................ 17
4.4.2 The Viewer User ................................................................................... 17
4.5
Web Admin Interface ........................................................................... 18
Signal Flow Diagrams ................................................................................. 21
Signal Capture ........................................................................................... 23
6.1
Connecting Sources .............................................................................. 23
6.1.1 Connecting DVI, VGA or HDMI Input Sources ...................................... 23
6.1.2 Connecting Audio Input Sources .......................................................... 24
6.2
Sources Setup ....................................................................................... 24
6.2.1 Digital source setup ............................................................................. 24
6.2.2 Composite and S-Video Source Setup .................................................. 27
6.2.3 Remote source setup ........................................................................... 28
6.2.4 Adding a network grabber ................................................................... 29
6.3
Audio Configuration ............................................................................. 29
Channel Setup ........................................................................................... 30
7.1
Creating and Deleting a Channel .......................................................... 30
7.2
Multiple Sources Channel Setup .......................................................... 33
7.3
Select Video Codec ............................................................................... 35
7.4
Set Video Encoding Constraints/Parameters ....................................... 35
7.5
Select Audio Format ............................................................................. 38
Streaming .................................................................................................. 39
8.1
HTTP or RTSP Streaming ....................................................................... 41
8.2
Using an IP Multicast Network ............................................................. 41
<Table of Contents
8.2.1 Setting up an RTP Multicast from Stream Setup .................................. 43
8.2.2 Setting up an RTP Multicast from Publish Stream ............................... 44
8.3
Using a Content Distribution Network ................................................. 45
8.3.1 Using Epiphan Portal for Streaming ..................................................... 46
8.3.2 Using Epiphan’s Partners as CDN Providers For Streaming ................. 50
8.4
Setting Up VGA Grid and StreamZilla for CDN Broadcasting ................ 51
8.5
Viewing Streaming Video ..................................................................... 58
8.5.1 Retrieving the Stream’s URL for Publishing ......................................... 58
8.5.2 Using the Channel Status Option ......................................................... 59
8.5.3 Testing How Participants Log In With a Viewer Password ................... 60
8.6
Viewing a Broadcast with a Browser .................................................... 60
8.6.1 Viewing a Broadcast with a Media Player ............................................ 60
8.7
Viewing a Broadcast on iPhone, iTouch, or iPad .................................. 61
8.8
Compatibility Information .................................................................... 61
8.8.1 Streaming format/Player Compatibility ............................................... 62
8.8.2 Browser Compatibility.......................................................................... 62
8.8.3 Media Player Compatibility .................................................................. 63
9
Recording .................................................................................................. 64
9.1
Selecting Recording File Format ........................................................... 64
9.2
Changing File Limits (Time and Size) .................................................... 65
9.3
Starting and Stopping Recording .......................................................... 66
9.4
Viewing the Current Recording ............................................................ 67
9.5
Recording a Stream on iPad, iPhone and iTouch ................................. 67
9.6
Recording Data in Motion JPEG Format ............................................... 67
9.7
Files Archive ......................................................................................... 67
9.7.1 Downloading Recordings ..................................................................... 68
9.7.2 Deleting Files ........................................................................................ 69
9.7.3 Renaming Files ..................................................................................... 69
9.7.4 Viewing Closed Recording Files ............................................................ 69
9.8
Recording Video from Multiple Sources on Separate Tracks in a File .. 70
9.9
Recording Video from Multiple Sources on One Track in a File ........... 71
9.10
File Transfer of Recorded Files ............................................................. 71
9.10.1
Copying Recorded Files to a USB Flash Drive or to an external HDD
71
9.11
Automatic File Upload .......................................................................... 73
9.11.1
Configuring Automatic File uploads................................................. 74
9.11.2
Configuring the CIFS Client .............................................................. 75
9.11.3
Configuring the RSync Client ........................................................... 76
9.11.4
Configuring the FTP Client ............................................................... 77
9.11.5
Testing the Automatic File Upload .................................................. 78
10 Networking................................................................................................ 79
10.1
Connecting Directly to the VGA Grid Concentrator ............................. 79
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10.1.1
Default Network Settings ................................................................ 80
10.1.2
Establishing Direct Connecting ........................................................ 80
10.2
Network Discovery of the System ........................................................ 81
10.2.1
Epiphan’s Network Discovery Utility ............................................... 81
10.2.2
Epiphan’s EpiphanTouch App for iPad, iPhone, iTouch ................... 82
10.3
Setting IP Address................................................................................. 83
10.3.1
Set the System to use a static IP address ........................................ 84
10.3.2
Set the VGA Grid to use a DHCP server ........................................... 84
11 System Administration .............................................................................. 86
11.1
Setting the Date and Time .................................................................... 86
11.2
Users and Passwords ............................................................................ 88
11.2.1
Configuring the Administrator User Password ................................ 88
11.2.2
Deleting the Administrator password ............................................. 89
11.3
Configuring Viewer Access ................................................................... 90
11.3.1
To add or change the viewer password ........................................... 90
11.3.2
Configuring IP-based Authentication for Viewers ........................... 91
11.3.3
Delete the Viewer Password ........................................................... 92
11.4
Upgrading the System Firmware .......................................................... 92
11.4.1
Installing new firmware ................................................................... 92
11.5
Maintenance Controls .......................................................................... 93
11.5.1
Restoring the System Default Factory Configuration ...................... 94
11.5.2
Rebooting or Restarting System ...................................................... 94
11.5.3
Shutting down the System ............................................................... 94
12 Serial Port Configuring ............................................................................... 95
13 Customizing Presentation and Web Content ............................................. 96
14 Configuring Remote Support ..................................................................... 98
15 VGA Grid Information .............................................................................. 101
16 Disk Check ............................................................................................... 101
17 Disk Status Information ........................................................................... 102
18 Configuring using a Third-Party Application ............................................. 103
18.1
Serial Port Configuration .................................................................... 103
18.2
RS-232 Commands ............................................................................. 103
18.3
Syntax for HTTP API Commands ......................................................... 105
18.4
Keys for HTTP API Commands ............................................................ 106
18.5
Device Info Keys ................................................................................. 106
18.6
Broadcasting Setup Keys .................................................................... 107
18.7
ASF Encoder Keys ............................................................................... 108
18.8
RTP Unicast (Peer-to-peer connection) Keys...................................... 108
18.9
Recorder Keys ..................................................................................... 109
19 Examples ................................................................................................. 109
20 Sample Configurations ............................................................................ 110
21 Troubleshooting ...................................................................................... 113
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22
23
4
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List of Figures .......................................................................................... 115
Configuration Worksheet ........................................................................ 120
VGA Grid User Guide
Overview
2 Overview
2.1 Introduction
Epiphan’s VGA Grid™ is a streaming, recording, and multiviewer product that allows
you to capture and stream video and audio from up to 256 VGA, DVI, HDMI sources,
either local or remote. This appliance combines both Ethernet-based audio-video
broadcast streaming and recording functionalities and is ideal for multi audio-video
source event recording, control rooms, digital signage, security recording, training
and simulation systems.
VGAGrid’s multiviewer capability enables administrators to create multiple output
channels which are combinations of multiple input channels. Layout of multiview
channels supports flexible scaling/sizing and placement of any input signals to create
custom views. Multiview channels may also be recorded and streamed.
Supporting resolutions between 640x480 and 2048x2048, this solution is suitable for
a broad range of applications including medicine, black box recording, traffic
monitoring and simulators.
Depending on the model configuration the VGA Grid can capture video and audio
from 4 or 6 input sources such as:
 a DVI/VGA/HDMI display or camera source,
 an analog audio source.
Upon customer request Epiphan Systems can provide customized configurations of
VGA Grid.
This system supports both local and remote capture of video sources. Remote units
capture video sources and transmit the data to VGAGrid via Ethernet for recording,
streaming, and multiviewing.
VGAGrid supports multiple industry standard video codecs including Motion JPEG,
MPEG4 and H.264.
VGA Grid features the Publish Stream functionality that enables a user to direct
captured video and audio to servers or clients using available stream modes. VGA
Grid can be configured as a client to a Content Distribution Network and stream the
broadcast to an unlimited number of concurrent viewers. This functionality enables
you to stream video to the Epiphan’s portal (epiphan.net) where it can be viewed
directly from.
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VGA Grid User Guide
Overview
VGA Grid consists of the VGA Grid Concentrator with installed internal capture cards
and external frame grabber hardware devices:
-
VGA Grid Central Unit (Concentrator) is a 4U rackmount server with hardware
for video/audio capture, Gigabit Ethernet and proprietary firmware. It connects
to local sources and remote sources (via network) capturing video and audio
and can be managed through the Web admin interface. The number of internal
VGA/DVI capture cards installed in the rackmount server chassis determines
how many local sources can be connected to the VGA Grid.
-
External network frame grabbers used in conjunction with VGA Grid
Concentrator allow you to capture, broadcast and record video and audio from
the remote sources through the Ethernet connection.
The VGA Grid Concentrator is connected to a network with an Ethernet connection.
The VGA Grid Concentrator and external frame grabber hardware devices support
both DHCP and static IP address assignment. Once connected to the network, they
can be configured and operated through an easy to use web interface.
When recording content administrators have a choice between AVI and MOV file
formats. Channels may be recorded to separate single-track files or combined into a
single multi-track file. Recorded files may be downloaded from the VGAGrid via the
Ethernet port to enable playback from an external computer.
To view streamed content, viewers are simply provided with the corresponding
unique URL which is automatically assigned to each output stream
The VGAGrid supports a range of storage options including standard hard disks, solid
state devices, removable drive options, and RAID configurations for storing recorded
content.
The VGA Grid supports streaming over HTTP, RSTP, peer-to-peer and multicast RTP.
Except for peer-to-peer and multicast RTP, all streaming types can be sent to a
Content Distribution Network (CDN) to maximize the number of concurrent viewers.
The decision on how to stream a broadcast will depend on many factors including
the number of expected viewers, destination devices used for viewing (e.g. iPAD,
laptop), and network capabilities between source and destination. For further
details on broadcasting strategies, please refer to Streaming.
The figure below illustrates how the VGA Grid fits into a network to allow a
broadcast consisting of video and optionally audio to be streamed to local and
remote viewers. While the broadcast is running, the VGA Grid can be recording the
broadcast to be retrieved at a later time.
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VGA Grid User Guide
Overview
Figure 1 Epiphan's VGA Grid Delivering High Quality Video and Audio to Local and Remote
Clients
2.2 Available Product Configurations
The VGA Grid can be ordered in the following configurations to accommodate your
needs.
4-source VGA Grid
This VGA Grid version integrates four DVI2PCIe internal frame grabbers. It offers
maximum connection of four DVI/VGA sources collocated with VGA Grid.
6-source VGA Grid
This VGA Grid version integrates six DVI2PCIe internal frame grabbers. It offers
maximum connection of six DVI/VGA sources collocated with VGA Grid.
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VGA Grid User Guide
Physical Attributes
If you need to broadcast or record data from remote inputs you can add a required
number of external network frame grabbers to your VGA Grid configuration.
It is possible to order any other configuration of VGA Grid on the Customize product
page upon customer request.
3 Physical Attributes
3.1 System Hardware Features
3.1.1
VGA Grid Concentrator Hardware Features
The VGA Grid Concentrator device is a standalone 4U rackmount chassis.
Dimensions are 235mm x 117.5mm x 73mm (9.25”x4.625”x2.875”).
Figure 2 Front View of the VGA Grid
Below is a table summarizing the connectors and indicators found on the front panel
of the VGA Grid.
Table 1 Summary of the Front Panel's connectors and Indicators
Number
1
2
3
4
8
Name
Power
Factory Reset
Button
Power LED
Hard disk
activity LED
Description
Power button
Resets the VGA Grid device to factory default settings.
Indicates that the VGA Grid is turned on
Blinks when the VGA Grid is making recordings.
VGA Grid User Guide
Physical Attributes
5, 6, 7
Not used
8, 9
USB port
This expansion port allows the connecting of any of the
following to the VGA Grid: an external HDD, a USB flash
drive, a remote mouse control for the starting/stopping
of a recording, or an RS-232 serial port for remote
controls, WiFi network connection.
Since VGA Grid can be delivered in multiple configurations, its back panel includes
RJ45 Gigabit Ethernet and power connectors, various number of DVI-I and audio in
ports.
3.1.2
VGA Grid Remote Acquisition Device Hardware Features
In order to capture, record and stream vide from remote sources VGA Grid uses the
VGA2Ethernet network frame grabbers. For the complete information about this
solution please refer to VGA2Ethernet User Guide. Below you can find the
description of its hardware features.
Figure 3 VGA2Ethernet (front view)
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VGA Grid User Guide
Physical Attributes
Table 2 Summary of the Front Panel's connectors and Indicators
Number
1, 2
3
Name
Not Used
Power and
Capture LEDS
4
Audio Out
5
DVI Out
6
Audio In
7
DVI In
10
Description
Red LED: during operation the red LED blinks each time
the VGA2Ethernet captures an image. You can use the
red LED as an indicator that the VGA2Ethernet is
capturing images.
Green and blue LEDs: when the VGA2Ethernet device
first starts up, the blue LED lights up. A few seconds
later the green LED lights up. After about another 20
seconds the blue LED turns off, leaving the green LED
on indicating that the VGA2Ethernet has started up and
can start capturing images. During operation the blue
LED blinks during video signal test operation and when
the system tunes video parameters (e.g. VGA
parameters)
Connects audio equipment, such as headphones or
speakers, to confirm whether the audio stream is
currently being captured by the VGA2Ethernet.
Used to verify and confirm that the connected video
source from DVI In port is being received. A DVI
monitor or projector can be used with this port using
the DVI to DVI cable. Alternatively, if the device to be
used to confirm the receiving DVI input signal is a VGA
monitor, use the DVI to VGA cable.
Connects a microphone or audio source. The input can
be mic or line.
Connects a DVI source to the VGA2Ethernet using the
included DVI cable. To connect a VGA source, use the
included VGA to DVI adapter. To connect an HDMI
source (non-copy protected content) use the included
HDMI to DVI adapter.
VGA Grid User Guide
Physical Attributes
Figure 4 VGA2Ethernet (rear view)
Table 3 Connector, Interface and LED Descriptions
8
Power
9
ETH1
10
ETH2
Connect the AC adapter to the VGA2Ethernet power
connector and to a power outlet
Primary 10/100/1000 Base-T RJ-45 auto-sensing Ethernet
network port to connect the VGA2Ethernet device to an
Ethernet network. The VGA2Ethernet device Ethernet port
is auto-sensing.
Secondary 10/100/1000 Base-T RJ-45 auto-sensing Ethernet
network port. This port is useful in case you need to
configure the Ethernet Bridge when there is only one
Ethernet connection.
3.2 Cables, Connectors and Adapters
The VGA Grid can be connected to a number of different types of equipment using a
variety of cables, and adapters. This section describes a subset of connectors, cables
and adapters that are known to be compatible with the VGA Grid.
3.2.1
3.5 mm Mini-jack
A 3.5mm mini jack connector is used to carry audio signals. It can be connected to
VGA Grid to its Audio In port.
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VGA Grid User Guide
Physical Attributes
Figure 5 3.5mm Mini-jack
3.2.2
VGA to DVI Cable
Connects a VGA source to either of the VGA Grid’s DVI-I Single-Link ports or DVI-I
dual link ports. This cable is included with the VGA Grid (one per DVI-I port)
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VGA Grid User Guide
Physical Attributes
Figure 6 VGA to DVI cable
3.2.3
DVI to DVI Cable
Connects a DVI source to the VGA Grid’s DVI ports. This cable is included with the
VGA Grid (one per DVI port).
Figure 7 DVI to DVI Cable
13
VGA Grid User Guide
Physical Attributes
HDMI to DVI Adapter
Connects an HDMI source to either of the VGA Grid’s DVI ports. This cable is
included with the VGA Grid.
3.2.4
Figure 8 HDMI to DVI Adapter
3.2.5
RJ-45 Male
Connects the VGA Grid to an Ethernet network.
Figure 9 RJ-45 Male Cable
14
VGA Grid User Guide
Getting Started
4 Getting Started
4.1 Powering on the VGA Grid
The main operation sequence for connecting and powering on the VGA Grid is as
follows:
1.
2.
3.
4.
5.
6.
7.
8.
Connect local video and audio sources to the Concentrator.
Connect all remote video and audio sources to the corresponding
VGA2Ethernet devices:
a. Connect a remote video source to the VGA2Ethernet device.
b. Use an RJ-45 Ethernet cable to connect the VGA2Ethernet Eth1 port to
the Ethernet network.
c. Connect the power cable to the VGA2Ethernet device. The
VGA2Ethernet device powers on and the power and image capture
activity LEDs light up as the device starts up.
d. Start up the remote video source.
Use an RJ-45 Ethernet cable to connect the VGA Grid’s Ethernet port to an
Ethernet network.
Connect the power cable to the VGA Grid Concentrator.
Press the Power button on the VGA Grid Concentrator front panel to turn on
the device.
The VGA Grid Concentrator powers on. The power and hard disk activity LEDs
light up as the device starts up following their start up sequence.
Log into the Concentrator configuration interface to confirm that the device is
connected to the network.
Start up the local video and audio sources.
4.2 Network Connections
Please to refer to the Networking chapter for the instructions on direct VGA Grid’s
connection to the Ethernet, discovering the VGA Grid on the network, IP address
settings and other details.
4.3 Logging into the Web Admin Interface
The VGA Grid comes with a Web admin interface that can be used to configure the
VGA Grid settings, view the files that have been recorded, and download recorded
15
VGA Grid User Guide
Getting Started
files. Additionally this control interface acts as a system monitor with options to
view the VGA Grid’s system status and its internal storage status.
The Web admin Interface is accessible by logging into it using one of the following
methods.
4.3.1
Epiphan’s Network Discovery Utility.
Epiphan Network Discovery Utility runs on a Windows based PC. It is used to
connect to the VGA Grid Web admin interface tool. Network Discovery Utility finds
the VGA Grid device on the network and displays its assigned IP address.
The Epiphan Network Discovery Utility can be installed and executed from a
workstation running Windows XP, Vista or Windows 7. Please refer to Networking
for the instructions on how to install the utility.
Follow the following steps to access the Web admin Interface through this utility:
1.
2.
3.
4.
5.
-
Start the Epiphan Network Discovery Utility tool.
Click Search to find all of the available Epiphan devices on the network and
select the VGA Grid.
Click Web config.
A web browser starts and you are prompted for the VGA Grid’s administrator
user name and password.
Enter the following information:
User Name: admin
Password: configured password<return>, there is no default password so unless
a password has been configured, just hit <return>
The Web admin interface opens.
Logging into the Web Admin Interface Using a Web Browser and the
IP Address of the VGA Grid
The web browser can be running on Windows, Mac OS X, Linux or any other
operating system.
4.3.2
1.
2.
16
Start a web browser on any workstation connected to the same network as the
VGA Grid.
Browse to the VGA Grid.
http://<ip address of the VGA Grid>/admin
The IP address of the VGA Grid can be obtained using any of the following
methods:
VGA Grid User Guide
Getting Started
The Epiphan Network Utility
The EpiphanTouch app
From the network administrator
Using the Factory Default static IP address. Only if the steps in section,
Connecting Directly to the , are followed
Log in as the VGA Grid’s administrator user
User Name: admin
Password: configured password<return>, there is no factory default password
so unless a password has been configured, just hit <return>
a.
b.
c.
d.
3.
The Web admin Interface opens.
4.4 Users Logging
The VGA Grid comes with two pre-configured users which are used to log in the
control interface. The first is the administrator user, its user name is admin and the
second is the viewer user, its user name is viewer. Each can be assigned a password
but their user names cannot be altered. It is not possible to create new log in users.
4.4.1
The Administrator User
The administrator user is used to log into the VGA Grid and perform any of the
following functions:
1.
2.
3.
4.
5.
Perform configuration changes to the VGA Grid.
Manage the current broadcast. This can include the starting or stopping of the
recording of the broadcast.
Manage previously saved broadcasts. Including the archiving of recordings.
System monitoring. This would involve retrieving any system statuses and
retrieving the hard disk status.
Upgrading the System Firmware from Epiphan Support. New firmware is
released to fix known problems or to add new features.
As a default factory setting, the administrator user does not come with a password
but it is recommended that a password is configured as early as possible for security
reasons.
4.4.2
The Viewer User
The viewer password is used to log in to view broadcasts and does not have any
administrative ability.
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VGA Grid User Guide
Getting Started
As a default, the viewer user does not come with a factory configured password.
Configuring a viewer password is optional.
4.5 Web Admin Interface
The VGA Grid comes with a Web admin interface that can be used to configure the
VGA Grid settings, create and configure output channels, view the files that have
been recorded, and download recorded files. Additionally it acts as a system
monitor with options to view the system’s status and VGA Grid’s internal storage
status.
This chapter describes how to use all of the VGA Grid’s Web admin interface
features.
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Getting Started
Figure 10 Web Admin Interface's Main Menu
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Getting Started
Table 4 The Channel section of the Web admin Interface




VGA Input
Channel 2
Channel 3
Multiple Sources
“All in one” recorder
Channel Status
This option as well as the
other options in this table
described below can be
found in each channel’s
section. They are selected
and configured for each
channel individually.
Stream Setup
Publish Stream
Video Source Setup
Files Archive
Here you can configure the output channels. You can
map combinations of input sources to one or more
output channel views.
Each channel can be recorded separately or combined
with another channel in a video file. Select a channel
under this section to open its sub-menu in a dropdown list. The system allows you to configure the
channel and view necessary information about it.
Note: You can create different channels and name
them as you like. The number and names of the
channels displayed on the images simply illustrate one
of possible configurations of the VGA Grid channels.
Records all channels simultaneously in one video file
View URLs of the broadcast and services state
Change the stream settings
Sends the stream to a remote streaming server
Select a video source(s)
Start/stop recordings and manage video archive
Table 5 The Sources section of the Web admin Interface
Sources :
 D2P83385.video
 D2P83385.vga
20
The serial numbers of all local and
remote frame grabbers found by the
system in the network are displayed in
the Web admin interface in this section.
Select a source under this section to
open its sub-menu in a drop-down list. It
allows you to perform necessary settings
for the source.
VGA Grid User Guide
Table 6 The Configuration section of the Web admin Interface
Admin Access
Viewer Access
Network
Audio
Date and Time
Branding
Firmware
Upgrade
Maintenance
Change the admin account password.
Change the viewer account password.
Change the VGA Grid network configuration.
Change and adjust the audio input and headphone output.
Change VGA Grid date and time settings.
Customize design of the browser where the broadcast is viewed.
Upgrade the VGA Grid firmware.
Info
Display information about the VGA Grid Firmware, CPU, Frame
Grabber and VGA Mode.
Automatically copy files from the VGA Grid device to a network
storage device.
Integrate the VGA Grid with other equipment featuring an RS232 port and control your device over the RS-232 connection.
Set a Maintenance Schedule for checking the VGA Grid solidstate memory for errors.
View the total hard disk space in GB, the used and available hard
disk space in GB, and also the amount used as a percentage of
the total space.
Automatic File
Upload
Serial Port
Disk Check
Disk Status
Reboot or shut down the VGA Grid device. Restore factory
configuration.
5 Signal Flow Diagrams
A series of diagrams below depicts how signal capture, multiplexing, encoding,
streaming and recording is performed.
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VGA Grid User Guide
Signal Flow Diagrams
Figure 11 Data Capture Flow
Figure 12 Data Recording Flow
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Signal Capture
Figure 13 Data Streaming Flow
6 Signal Capture
6.1 Connecting Sources
It is recommended that prior to powering up the VGA Grid, the input local sources
where the data is captured from are connected first. These input sources can be DVI,
VGA, HDMI, composite or s-video sources. Any one of DVI, VGA, or HDMI sources
would be connected to the VGA Grid using its DVI-I input port. Audio input will be
connected to the VGA Grid’s Audio In port. Composite or s-video sources will be
connected to the VGA Grid’s analog port. The ports’ numbers and characteristics
depend on the VGA Grid’s configuration you have ordered.
6.1.1
Connecting DVI, VGA or HDMI Input Sources
All DVI, VGA or HDMI input sources are connected to the VGA Grid using the DVI-I
input port. How this connection is made and using which cable is dependent on the
input source.
DVI input sources are connected using the DVI to DVI dual link cable, Figure 7 DVI to
DVI Cable.
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VGA Grid User Guide
Signal Capture
VGA input sources are connected to a DVI Single-Link port using the VGA to DVI
cable, Figure 6 VGA to DVI cable.
HDMI input sources are connected using the HDMI to DVI adapter, Figure 8 HDMI to
DVI Adapter should only be non-copy protected content.
6.1.2
Connecting Audio Input Sources
All audio sources are connected to the VGA Grid using the audio input port.
6.2 Sources Setup
This section explains how to configure the digital and composite sources connected
to the VGA Grid.
6.2.1
Digital source setup
A frame grabber is an electronic device that captures individual still frames from a
video source and transmits them in a digital form. The number and technical
characteristics of the Epiphan frame grabbers (VGA and/or DVI) installed in the VGA
Grid depend on the ordered product configuration. They capture video from the
local sources, are subsystem components in the VGA Grid and can be configured
separately. Serial numbers of the internal frame grabbers installed in the VGA Grid
are displayed under the Sources title in the left part of the Web admin interface. In
our example it is D2P83385.
The VGA Grid automatically adjusts image capture settings every time it starts up.
The automatic image adjustment is repeated every 60 seconds during operation.
The interval between automatic adjustments can be changed to have them occur
more or less often. The capture settings attempt to produce the best quality
captured image for the equipment being used.
Normally, making manual image adjustments should not be necessary. This means
that there are no default Frame Grabber adjustment settings. However, special
requirements may exist that produce image quality problems that can only be fixed
by making image adjustments.
The Frame Grabber adjustments page within the Web admin interface contains
most of the information needed to make image adjustments. This includes a brief
description of the effect created as a result of each adjustment and the adjustment
range.
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VGA Grid User Guide
Signal Capture
To make an adjustment, add a value to one or more fields and select Apply.
To clear any adjustments, delete the value from one or more fields and select Apply.
Figure 14 Digital Source Setup
The following settings can be made for the digital source:
Table 7 Settings available on the frame grabber page
Use signal from
Autoadjustments interval
Vertical shift
Horizontal shift
25
Specify the signal captured by the frame grabber
Change the interval between automatic adjustments
if you want them to occur more or less often. To
suspend automatic adjustments, enter 0.
Configure the vertical shift to offset the captured
image’s position. For example, a captured image that
is shifted slightly downward or vertically can be
corrected with minor adjustments to the vertical shift
settings.
Increasing or decreasing the value entered in the
Vertical Shift field shifts the image up or down.
Configure the horizontal shift to offset the captured
VGA Grid User Guide
Phase
PLL adjustment
Offset
Gain
Aspect ratio
HSync threshold
26
Signal Capture
image’s position. For example, a captured image that
is shifted slightly to the right or horizontally can be
corrected with minor adjustments to the horizontal
shift settings.
Increasing or decreasing the value entered in the
Horizontal Shift field shifts the image to the right or
left.
Configuring the phase, or sampling phase as it is also
known, adjusts the horizontal resolution of the
image. An improperly adjusted phase will result in a
fuzzy image. Adjust the sampling phase in small steps
until a sharper image is displayed.
Configuring the PLL adjusts the vertical
synchronization properties of the image. The PLL
adjustment may need to be changed when there is a
repetitive distortion or blurriness on the horizontal
axis of the image. Adjust the PLL setting in small steps
until a sharper image is displayed.
Use the offset and gain controls together to optimize
image quality. Increasing the offset reduces
background noise but also reduces the overall signal.
Balance offset and gain values to achieve the best
quality image. Adjust these settings by the smallest
values possible to achieve the best results.
Compensate for a large change to one by making a
large change to the other, but setting both offset and
gain to high values can result in poorer video quality.
Use the offset and gain controls together to optimize
image quality. Increasing the gain amplifies weak
signals but also increases noise. Balance offset and
gain values to achieve the best quality image. Adjust
these settings by the smallest values possible to
achieve the best results. Compensate for a large
change to one by making a large change to the other,
but setting both offset and gain to high values can
result in poorer video quality.
Sets the aspect ratio of the captured image. The
default aspect ratio is 4:3. The aspect ratio can be set
to wide mode in order that the VGA Grid can
accurately capture wide aspect ratio modes.
Adjusts horizontal sync detection
VGA Grid User Guide
VSync threshold
Rotate
6.2.2
Signal Capture
Adjusts vertical sync detection
Select a required value to rotate the video while
streaming:
 No rotation
 90⁰ clockwise
 90⁰ counter clockwise
 180⁰
Composite and S-Video Source Setup
To adjust a composite source, click its name under the Sources section.
Table 8 Composite and S-Video settings
Use signal from
Autoadjustments interval
Vertical shift
Horizontal shift
Signal Type
Rotate
27
Specify the signal captured by the frame grabber
Change the interval between automatic
adjustments if you want them to occur more or less
often. To suspend automatic adjustments, enter 0.
Configure the vertical shift to offset the captured
image’s position. For example, a captured image
that is shifted slightly downward or vertically can be
corrected with minor adjustments to the vertical
shift settings.
Increasing or decreasing the value entered in the
Vertical Shift field shifts the image up or down.
Configure the horizontal shift to offset the captured
image’s position. For example, a captured image
that is shifted slightly to the right or horizontally
can be corrected with minor adjustments to the
horizontal shift settings.
Increasing or decreasing the value entered in the
Horizontal Shift field shifts the image to the right or
left.
Select a signal type:
 Composite
 S-Video
Select a required value to rotate the video while
streaming:
 No rotation
VGA Grid User Guide
Signal Capture



6.2.3
90⁰ clockwise
90⁰ counter clockwise
180⁰
Remote source setup
If you have connected remote video sources to the VGA Grid Acquisition units
(VGA2Ethernet), they are found by the VGA Grid on the network and shown in the
Sources section of the Web admin interface. It displays information about the
device’s serial number, admin page URL, IP address, videomode and the channels
where this source is being streamed.
The following settings are available:
Figure 15 Remote video source settings
Table 9 Settings available on the remote video source page
Device password
Rotate
28
If needed you can set a password
preventing an unauthorized person from
viewing the broadcast from this source.
Select a required value to rotate the
video while streaming:
 No rotation
 90⁰ clockwise
VGA Grid User Guide


Signal Capture
90⁰ counter clockwise
180⁰
6.2.4
Adding a network grabber
The system is able to search for and find available frame grabbers on the network.
There are two ways to add these frame grabbers as new sources to the VGA Grid:
1.
2.
3.
Click Add network grabber in the Sources section of the Web Admin
interface.
Select check boxes near required devices found by network discovery.
Click Add selected devices.
or (if you know the device’s IP address)
1.
2.
3.
Click Add network grabber in the Sources section.
Enter the IP address of the device in the Device address field.
Click Add selected devices.
The selected devices will appear in the Sources section of the Web admin interface.
6.3 Audio Configuration
Use the Audio section of the Web Admin interface to configure the audio settings
that control the audio input. All available video formats support audio except
Motion JPEG.
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Channel Setup
Figure 16 Audio Configurable Options
Table 10 Audio Configurable Options
Configurable Options
Input Source
Input Amplifier Volume
Headphones Amplifier
Volume
Select the input source
 Microphone
 Front Microphone
 Line
Reduce the input volume if the line in signal volume is
too high for the VGA Grid’s line in amplifier. The default
input amplifier volume setting is 100%. If the input
volume is too high, change the setting to between 5%
and 90% to reduce the input volume.
Set up the headphones amplifier volume
7 Channel Setup
7.1 Creating and Deleting a Channel
The Channels Setup page from the Web admin interface’s main page allows for the
configuring channel settings and view necessary information for the selected
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Channel Setup
channel. Depending on your needs you can create new channels and configure
them.
Setting pages for the video sources from which you will record and/or broadcast
video can be accessed by clicking the channel name under the Channels section.
As long as you select a required channel node from the list, it expands the sub-menu
where the following options are available:





Channel Status
Stream Setup
Publish Stream
Video Source Setup
Files Archive
All these options are discussed below.
To create a channel, name it and assign a video source to a channel:
1. Log in to the Web Admin interface.
2. In the Channels pane click Add channel. A new channel appears in the
channels list.
Figure 17 The Add Channel Command
3.
31
The Video Source Setup section is displayed. Select a source from the
drop-down list near the Use video source field and click Apply. All local
and remote video sources found by the system in the network are
VGA Grid User Guide
Channel Setup
displayed here. The option Multiple sources is discussed in the next
section.
No signal
Serial numbers of the digital frame
grabbers installed in your VGA Grid and
remote VGA2Ethernet units are
displayed here.
Multiple sources
4.
This channel is not used
Video from the selected video source is
streamed through this channel
Video from multiple inputs is streamed
through this channel
Click Stream Setup. In the Channel name field specify the name of the
channel.
Figure 18 Naming the Channel
5.
32
Click Apply.
VGA Grid User Guide
Channel Setup
Figure 19 New Channel Named “Video Channel”
To delete a channel:
1. Click on its name.
2. Click Delete this channel.
Figure 20 Channel Deletion
7.2 Multiple Sources Channel Setup
When you are capturing video from multiple video sources, usually you will need to
configure a separate channel which creates a layout for the recording/broadcasting,
i.e. specify how all videos are positioned on a screen relative to each other. This
operation is performed using the Multiple Sources option under the Channels
section of the Web Admin interface.
If you selected Multiple sources in the channel’s Use video source field, this channel
will be used to stream videos from multiple source through this channel. The system
allows you to configure a layout for the streaming when more than one source is
being used. The position and size of each source stream in the channel is adjustable.
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VGA Grid User Guide
Channel Setup
Figure 21 Setting Position and Size for Multiple Sources
The following multiplexing features are available:
Source
Position
Size
Delete
Add source
Use audio from
Select a source for which position and size are currently
specified. Any of the available local or remote sources can
be selected in this field.
For the selected source specify the location of the video
stream picture on the screen (in percents, starting from
the left upper corner)
For the selected source set size of the video stream picture
on the screen as percentage of screen size (height and
width)
Delete this source and all related settings
Add another source for setting layout
Select a check box near the source if you want to add
audio signal from this source to the channel.
To create and configure a multisource channel:
1.
34
Create a channel as described above and select the Multiple source
VGA Grid User Guide
2.
3.
4.
5.
6.
7.
Channel Setup
option.
Click Add source.
Select the source from the drop-down list.
Specify position and size for the video streaming from this source.
Repeat steps 2-4 for all sources you want to use in this channel.
Specify the source from which you will use audio signal during streaming.
If you want to delete a source, click Delete.
Note that you can create different Multiple source channels and configure them as
required.
7.3 Select Video Codec
Before starting the video recording process, you have to specify the video codec for
your recording. It can be selected on the Stream Setup section of each channel’s
page.
To select the video codec:
1.
2.
3.
4.
Select the required channel.
Click the Stream Setup menu option.
Click an arrow in the Stream Type field.
Select the required codec from the drop-down list. The following values are
available for selection:

Flash using H.264,

ASF with either MPEG4 or H.264 codecs,

Motion JPEG

RTSP with either MPEG4 or H.264 codecs.
Flash video and Motion JPEG can be viewed using many operating systems and web
browsers.
ASF can be viewed with the Windows Media Player on Windows systems, and the
VLC Media Player on Windows and other operating systems.
RTSP supports many media players including QuickTime and MPlayer.
7.4 Set Video Encoding Constraints/Parameters
The following parameters can be additionally specified for a channel:
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VGA Grid User Guide
Fast encoding
Channel Setup
Enables fast encoding. Using this check box may affect
the streaming quality to some extent.
Video encoding profile
Select one of the following encoding profiles that target
specific classes of applications:
1. Baseline: for applications requiring additional
data loss robustness
2. Main: for standard-definition broadcasts
3. High: for broadcast and disc storage
applications
Show time label
Frame size
Key frame interval
Limit frame rate
Bitrate
Rate control mode
If the video needs to be time labeled or timestamped,
this parameter allows you to specify how the date and
time will be displayed. You can add here some text if
necessary.
Click on Show substitutions and use the Format
substitutions commands to select the desired date and
time format. The commands are described in Table 11
Format Substitutions Commands below. If time labeling
is not required, leave this field blank.
Select a frame size from the available values depending
on aspect ratio. This setting allows you to limit the width
and height of the video image. If the video source is
sending resolutions larger than the resolution limit
configured, the video image will be scaled to the
resolution limit. Limiting the file resolution can help to
reduce bandwidth usage.
To enter non-listed resolutions use the blank fields next
to available values.
Controls the number of frames. Key frames define the
starting and ending points of any smooth transition.
Enter a value in terms frames per second. This field is
used to set a frame rate that is lower than the maximum
frame rate at which the VGA Grid can capture images.
Reducing the frame rate reduces the number of images
being captured by the device.
Enter a signal bitrate. A lower bitrate produces lower
quality videos and smaller file sizes. A higher bitrate
produces better quality videos and larger file sizes.
Used for H.264 and MPEG4 codecs. It specifies the
bitrate encoding for the signal. Select one of the
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VGA Grid User Guide
Channel Setup
following:
- Low Delay
Means Constant Bitrate encoding (CBR) will be used.
CBR is useful for streaming multimedia content on
limited capacity channels since it is the maximum bit
rate that matters, not the average. Therefore, CBR
would be used to take advantage of all of the
channel capacity.
- Storage
Means Variable Bitrate Encoding (VBR) will be used.
This produces a better quality-to-space ratio
compared to a CBR file of the same data. VBR files
vary the amount of output data per time segment
and the FPS value may be lower.
The number of the port being used to stream the
broadcast. This value is part of the URL used to access
the broadcast. In the case where there are two streams
from different ports, this value remains the same for
both of the URLs being used.
Stream port
Table 11 Format Substitutions Commands
Command
date
year
month (as 01)
month (as Jan)
month (as
January)
day of month
weekday (as Thu)
weekday (as
Thursday)
time
hour
minute
second
ms
37
Value
%F
%G
%m
%b
%B
%d
%a
%A
%T
%k
%M
%S
%#m
VGA Grid User Guide
Channel Setup
Figure 22 Stream Settings
Figure 23 Common Settings
7.5 Select Audio Format
The Audio settings pane in the control interface can be accessed by clicking the
Stream Setup option from the menu.
Select the Enable audio checkbox and specify the audio signal parameters.
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VGA Grid User Guide
Streaming
Figure 24 Audio Settings
Enable audio
Audio format
Audio sample rate (Hz)
Audio bitrate
Select this checkbox to enable audio for
the broadcast.
Select either MP3 or Raw PCM (Pulse
Code Modulation) formats.
Number of samples per second that are
used to digitalize audio input.
Select the audio bitrate value for the
broadcast.
8 Streaming
There are several decisions that need to be made when planning the creation of a
broadcast, besides its exact content of the broadcast. Will the broadcast include an
audio component coming from an analog audio source? What video format to use,
what video standard to use, how to stream the broadcast are all questions that have
to be answered when creating a broadcast. Most of the answers depend on the
intended audience of the broadcast, how are the viewers going to view the
broadcast, and how many simultaneous viewers are expected to view the
broadcast? Where are the viewers located in relation to the where the broadcast is
being streamed? What are the performance expectations? These are the types of
questions that will determine the overall design of the broadcast.
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VGA Grid User Guide
Streaming
This chapter outlines how a suitable design of a broadcast can be architected based
on these types of questions and their resulting answers and how the VGA Grid can
be used in this design.
The VGA Grid supports streaming of various standards and formats. The choice of
video format will depend on the broadcast content and performance requirements.
For example, Motion JPEG does not support audio from an external source. It also
depends on how the intended viewers are planning to receive and play the
broadcast. Keep in mind that browser viewer capabilities and compatibilities are
subject to change.
With the VGA Grid, the video stream format is selected by an administrator. All
users must view the broadcast in this format. In the case where an experienced user
wants to view the same broadcast but requires different stream formats, it is
possible to configure channels for streaming different video formats of the same
broadcast to meet this requirement.
The figure below is representation of the protocol stack diagram showing how the
video data is processed.
Figure 25 Protocol Stack Diagram
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VGA Grid User Guide
Streaming
How the broadcast will be delivered to its viewers depends on the number of
intended viewers and where the viewers are in relation to where the broadcast is
originating. Are they on the same LAN or will they be accessing the broadcast from
an external network? The answers to the above questions will help decide the
delivery method of the broadcast.
The VGA Grid can support streaming over HTTP, RTSP, peer-to-peer RTP connection,
multicast RTP and a Content Distribution Network (CDN) broadcast network. Each
broadcast delivery method will be now discussed in more detail.
8.1 HTTP or RTSP Streaming
For HTTP or RTSP streaming the only information required to view the broadcast is
the URL of the broadcast. The VGA Grid is ready to go straight out of the box,
without any additional settings. If your broadcast needs to be accessed by many
clients, use a Content Distribution Network as explained in the Using a Content
Distribution Network section.
8.2 Using an IP Multicast Network
A multicast RTP stream provides a one-to-many broadcasting framework. In a
multicast RTP configuration, the VGA Grid sends a packet only once to a router that
supports multicasting. This router then distributes the packets to all intended viewer
nodes using a multi-cast protocol.
Sending multicast streams requires equipment that supports multi-casting,
configuring your network and enabling specific multicasting features on the VGA
Grid. Multicast architectures are used predominantly within a high bandwidth
corporate LAN and not on Internet based architectures. Multicast RTP streaming is
not usually propagated outside the LAN though it may be propagated through VPNs
connecting several LANs. Multicast transmission is available during RTP streaming.
A special case of multicasting is a peer-to-peer connection. In this scenario, a logical
connection is established with a single client node. It does not require a request
from the viewer to start sending data. Only one copy of the data is sent. The
multimedia stream is always sent to the specified IP address configured in the
RTP/UDP Push settings. A peer-to-peer connection is only available during RTP or
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Flash streaming. The VGA Grid provides about 100 peer-to-peer connections in case
of satisfactory bandwidth.
Figure 26 Peer-to-peer Connection
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Figure 27 Multicast RTP Broadcasting to More than One Viewer
Figure 28 RTP/UDP settings in Stream Setup
8.2.1
Setting up an RTP Multicast from Stream Setup
To set up an RTP Multicast, enter the following settings in the channels’ Stream
Setup menu item:
1. Select the RTSP/H.264 stream type in the Stream Type field and click
Apply.
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VGA Grid User Guide
2.
Streaming
In the RTP/UDP stream section specify the following additional fields
(refer to the Figure 28 RTP/UDP settings in Stream Setup):
Table 12 RTP Multicast Specific Configurations
Enable RTP/UDP stream
Destination IP
Audio Port
Video Port
3.
Select this checkbox to enable RTP/UDP streaming.
Enter the IP address of the target host.
Configure the audio port for the stream.
Configure the video port for the stream.
An SDP file is now generated. It is available in the Info section of the Web
Admin interface. Select a name and location for the SDP file and save it.
Then pass the SDP file to your audience.
Figure 29 RTP/UDP Settings in Publish Stream
Setting up an RTP Multicast from Publish Stream
8.2.2
Alternatively, you can set up an RTP Multicast from the Publish Stream functionality:
1.
2.
3.
4.
5.
44
Click the channels’ Stream Setup menu item.
Select the RTSP stream type in the Stream Type field and click Apply.
Click Publish Stream menu item.
Select RTP/UDP Push from the drop-down list.
Select the Enable RTP/UDP stream check box.
VGA Grid User Guide
6.
7.
8.
9.
Streaming
Enter a destination IP address. At this target point the broadcast will be
viewed.
Specify the numbers of the video and audio ports where the broadcast will
be received. Usually an administrator is aware of which ports are unused
and can be specified here.
Click Apply.
An SDP file is now generated.
8.3 Using a Content Distribution Network
A content delivery network (CDN) is a system of computers or servers that ingest an
incoming stream source and rapidly provides this content to numerous users by
duplicating the content on multiple servers and directing the content to users.
CDNs distributes a heavy load of traffic to multiple locations in order to avoid
congestion on a network that could impact a user’s Internet experience. A CDN is
highly scalable and can make financial sense to website owners as you will not need
to pay for additional server hardware or routing should your website traffic start to
increase or even decrease. The use of CDN technology has obvious advantages to
those users whose broadcasts have large audiences from locations all over the
world. If dozens or hundreds of viewers happen to select the same Web page or
content simultaneously, the CDN sends the content to each of them without delay
or time-out.
To stream to multiple users, the VGA Grid can be configured as a client to CDN.
Please click http://epiphan.net/cdn-partners.php to view the list of CDN providers
preferred by Epiphan. By connecting to a CDN server, the broadcast from the VGA
Grid can be streamed to multiple viewers. By using a CDN, the maximum number of
concurrent clients is increased, while at the same time reducing the load on the
uplink internet connection.
CDN streaming is a very effective approach when you are broadcasting streams from
the Epiphan solutions and want to add scalability to your broadcast. The VGA Grid
features the Publish Stream functionality that enables you to stream the broadcast
either via Epiphan’s portal or CDN providers to multiple viewers. You can use the
following protocols for CDN streaming: RTSP (H.264), Flash (H.264), ASF (H.264).
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Using CDN it is possible to set a user name and a password for the broadcast. Each
viewer will have to request it from you before viewing the broadcast. This function
allows you to to manage access to your content ensuring visibility only to the
appropriate and authorized viewers.
Figure 30 Using a CDN Service Increases Scalability of Concurrent Viewers
8.3.1
Using Epiphan Portal for Streaming
To set up and perform streaming via Epiphan’s portal:
1. Click the Publish Stream option in the main menu of the control interface.
2. Select to xxxxx.epiphan.net from the Publish drop-down list where xxxxx
is the unique serial number of the VGA Grid.
3. Select Enable publishing and click Apply. The system informs you that
stream will be available on the Epiphan’s portal and provides a link.
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Figure 31 URL to Epiphan Server
4.
5.
Click this link and access the portal where the stream is being broadcast in
a new window.
In case the bitrate of your broadcast exceeds 500 kbit/s, the system will
give you a warning (see Figure 32 System Message in Case of Excessive
Bitrate Speed). Click on fix by reducing bitrate to 500. The bitrate will be
set to 500 kbit/s automatically.
Note: Epiphan.net is a demonstration service to help customers
experiment with publishing streams to content distribution networks.
Therefore certain bandwidth and performance limits are applied. To
upgrade to a full service please select one of Epiphan’s CDN partners.
Figure 32 System Message in Case of Excessive Bitrate Speed
Now connection through the media tunnel is established. The VGA Grid starts
streaming to the Epiphan’s portal – epiphan.net.
It is required to set up audio format as MP3 when streaming through the
epiphan.net. This setting is performed in the control interface’s Stream Setup
section (see Select Audio Format).
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Figure 33 Selecting Options for Streaming through Epiphan.net
There are several buttons available at the bottom of the epiphan.net portal page
(see Figure 34 Epiphan’s Portal):
Switch to
Click this button to select a plugin which will be used for viewing the
stream. Refer to Figure 35 Plugins Available for Selection on the
PortalFigure 35 Plugins Available for Selection on the Portal.
Embed
Direct URL
6.
7.
8.
48
-
Flash RTMP
-
Flash HTTP
-
QuickTime
- VLC Player
Displays a code that allows you to embed video stream into your
web page. Refer to Figure 36 Code for Stream Embedding
Displays a list of URLs for different types of broadcasting. Refer to
Figure 37 Listing of Direct URLsFigure 37 Listing of Direct URLs.
Click Switch to button and select a plugin for viewing the stream.
If you need to embed the stream into your web page, click Embed to
obtain the code.
Click Direct URL to obtain the list of URLs for different types of
broadcasting.
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Figure 34 Epiphan’s Portal
Figure 35 Plugins Available for Selection on the Portal
Figure 36 Code for Stream Embedding
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Figure 37 Listing of Direct URLs
Alternatively you can configure your VGA Grid to stream their content through
epiphan.net directly on the portal.
To view the stream directly on the portal:
1.
2.
3.
Type http://epiphan.net in the address bar of your browser.
Enter serial number of your VGA Grid. It is displayed in the Info section of
the Web admin interface.
Click the Go! button.
Using Epiphan’s Partners as CDN Providers For Streaming
8.3.2
Use this option if you need to perform streaming on a remote streaming server
other than epiphan.net. It is required to set up audio format as MP3. This setting is
performed in the control interface’s Stream Setup section (see Select Audio Format).
To use this option:
1.
2.
3.
50
Select RTSP Announce from the drop-down list.
Enter the host/server name. For example, 172.30.209.150.
Enter the number of port which is used for streaming to server. Usually for
RTSP streaming it is port 554.
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5.
6.
Streaming
In the Mount point field enter the full path to locate an SDP file on server.
This path is got from the CDN provider.
If necessary, enter the user and password information.
Click Apply.
Figure 38 RTSP Announce Functionality
The last option available in the Publish field (using RTP/UDP push) is described in
the Setting up an RTP Multicast from Publish Stream section.
8.4 Setting Up VGA Grid and StreamZilla for CDN
Broadcasting
Epiphan VGA Grid supports broadcast streaming to multiple users through a Content
Distribution Network. It can be configured as a client to Epiphan’s preferred CDN
partners. By using a CDN, the maximum number of concurrent clients is increased,
while at the same time reducing the load on the uplink internet connection.
In this section it is explained how to configure a VGA Grid channel to broadcast
through StreamZilla.
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1.
2.
3.
Make sure that the VGA Grid system has been properly deployed.
Log in to the VGA Grid Web Admin interface.
Select Channel 1.
Figure 39 VGA Grid Channel Selection
4.
52
In the drop-down menu click Stream setup and select RTSP (H.264 codec) in
the Stream type field. Note that the RTP/UDP stream section is displayed at
the bottom of the page. Do not close this page.
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Figure 40 Stream Setup
5.
53
Open a new tab in your browser and log in to your CDN Manager’s account.
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6.
Click the Manage live streams icon. Then click Add a live stream.
Figure 41 Adding a Live Stream
7.
8.
A new window is displayed. Configure it as shown on a screenshot below.
Select QuickTime in the Stream type field and enter a user name. Then click
Next.
Figure 42 Stream Type Selection
9.
54
StreamZilla displays a live stream settings window with UDP audio port,
UDP video port and Core Server IP address values.
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Figure 43 Live Stream Settings
10. Leave this window open and go back to the VGA Grid Web Admin interface
window.
11. Fill in the fields in the RTP/UDP stream section using the information shown
on the StreamZilla window.
12. Click Apply.
Figure 44 RTP/UDP stream settings
13. Now click Channel status. Then download the SDP file and save it on your
computer's local disk.
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Figure 45 Downloading SDP file
14. Go to the StreamZilla window. Upload the SDP file and click Next.
Figure 46 Uploading the SDP File
15. CDN Server will finalize the process. Wait a few minutes until live stream
setup process is complete.
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Figure 47 Finalizing Process
16. Click Embed code/URL.
Figure 48 Embed Code/URL
17. In this window you can generate a code that allows watching your stream
anywhere. Check all settings and click the Generate embed code button.
Script and http‐link information will be generated. After embedding this
script in your website you will be able to watch the broadcast from there.
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Figure 49 Generate Embed Code
8.5 Viewing Streaming Video
The VGA Grid may broadcast audio and video at resolutions of up to 2048 x 2048
depending on the configuration. Viewers can access the broadcasted video streams
with a web browser that supports Motion JPEG, MPEG4 or Flash Video/H.264
compression or with a media player that is compatible with the stream format being
transmitted. The video stream format is selected by the administrator. Audio is
available for all formats except from Motion JPEG.
8.5.1
Retrieving the Stream’s URL for Publishing
In order for viewers to log in to VGA Grid as viewers and view a stream, the
administrator must release the URL(s) of the stream. The administrator is able to
provide separate URLs for all streams coming in from the local and remote sources
connected to the VGA Grid either physically or throughout the network.
Alternatively, one URL can be provided that allows viewers to see mapped
combinations of input sources mapped by an administrator to an output channel
view. The administrator can retrieve the appropriate stream URL or URLs as
explained below.
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8.5.2
Using the Channel Status Option
Regardless of which URL the administrator needs, all of the information about the
channel’s stream and its respective URLs can be retrieved by selecting the Channel
Status menu item from the selected channel’s page.
The following indicates where each URL for the stream can be found on that page:
Figure 50 URLs of the Broadcast Displayed in the Channel Status Section
Live broadcast is an URL for the simultaneous stream from video and audio sources
depending on channel settings.
Direct stream URL is an URL for the broadcast coming from the separate source of
the VGA Grid.
iPhone/iPad stream is an URL for streaming on iDevices.
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8.5.3
Testing How Participants Log In With a Viewer Password
1. Start any web browser.
2. Using a browser or media player, open the Open URL dialog box and enter the
IP, DNS or URL address of the VGA Grid device. For example, if the URL IP
address of the device’s stream is 192.168.23.45:552/vga.sdp, then browse to:
http://192.168.23.45:552/vga.sdp
3. Enter the following when prompted:
User Name: viewer
Password: enter the viewer password
4. Press Enter. If the VGA Grid is capturing images and is streaming images over
the network, the viewer can see the visual information as it is transmitted.
8.6 Viewing a Broadcast with a Browser
If the administrator has configured a viewer password, participants must obtain the
password in order to log in. The administrator will also provide the IP Address or the
URL to be used by the viewer’s browser.
To log in to view the broadcast using a browser:
1. Start any web browser.
2. Browse to the IP, DNS or URL address of the VGA Grid’s broadcast stream.
For example, if the IP address of the VGA Grid’s broadcast is 192.168.23.45,
then browse to: http://192.168.23.45
3. Enter the following:
User Name: viewer
Password: (enter the viewer password).
4. Press Enter.
5. The broadcast begins to play within the viewer’s browser.
8.6.1
Viewing a Broadcast with a Media Player
If the administrator has configured a Viewer password, participants must obtain the
password in order to log in. The administrator will also provide the IP Address or the
URL to use within the media player.
To log in to view a stream using a media player:
1.
2.
3.
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Launch the media player.
Use the Menu bar to open the URL dialog box and enter the IP, DNS or URL
address of the stream.
When prompted, enter the following:
a. User name: viewer
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4.
b. Password: enter the viewer password.
c. Press Enter.
The stream begins to play within the viewer’s browser.
Figure 51 Viewing a Broadcast Using a Web Browser
8.7 Viewing a Broadcast on iPhone, iTouch, or iPad
You can view a broadcast on iDevices using EpiphanTouch™. This discovery and
remote control application is available as a free download from iTunes and the App
store. It allows you to log into the device as the administrator user. Refer to
Epiphan’s EpiphanTouch App for iPad, iPhone, iTouch section for details.
8.8 Compatibility Information
This section provides information on compatibility of video streaming formats,
browsers and viewers which is necessary for streaming video.
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8.8.1
Streaming format/Player Compatibility
The VGA Grid can stream video using Flash (H.264), ASF (MPEG4 or H.264 codecs),
Motion JPEG or RTSP (MPEG4 or H.264 codecs). A quick definition of these video
streaming methods and the type of application that a viewer would use to watch
that particular video stream is now provided.
The Adobe Flash Video file type is proprietary but is supported on most web
browsers and on many media players including the VLC Media Player. This file type
supports the H.264 standard. This video supports analog audio from an external
source.
The Advanced System Format (ASF) file type also called Advanced Streaming
format, can be viewed with the Windows Media Player or the VLC Media Player.
Additional codecs may need to be installed to view ASF files. This file type supports
H.264 and MPEG4 standards. This video supports analog audio from an external
source.
The Motion JPEG file type records each frame in the video in JPEG format and can
be viewed using most web browsers. This video format does not support analog
audio from an external source.
The RTSP type supports many media players including QuickTime and MPlayer. This
file type supports H.264 and MPEG4 standards. This video supports analog audio
from an external source.
8.8.2
Browser Compatibility
Below is a list of browsers, operating systems and their supported video formats,
which is believed to be accurate at time of writing. For additional media browser
platform support, compatibilities and capabilities, please visit our website and/or
the relevant browser or plug in documentation.
Table 13 Browsers and Video Formats
Browser
Motion JPEG
ASF
RTSP
Flash Video
(H.264)
Internet
Explorer 8
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Mozilla
Safari
Chrome
In order to play ASF, RTSP, and Flash Video formats in browsers ensure that all
appropriate plug-ins are installed.
Browser/viewer capabilities and compatibilities are
subject to change.
8.8.3
Media Player Compatibility
Here below you can find a list of media players, operating systems and their
supported video formats, which is believed to be accurate at time of writing. For
additional media player support, compatibilities and capabilities, please visit our
website and/or the media player documentation.
Table 14 Media Players and Supported Video Formats
Media Player
Motion
JPEG
ASF
RTSP
Flash Video (H.264)
Windows Media
Player (v.12)
MPlayer (Windows,
Mac OS, Linux)
QuickTime (Mac
OS)
VLC (Windows,
Mac OS, Linux)
The following media players support working with independent streams:
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-
SMPlayer
-
Windows Media Player
9 Recording
The VGA Grid captures video and audio data which is associated with a channel or
channels. This data can be encapsulated in a file or files and recorded.
The Web admin interface provides the administrator user with the ability to start,
stop and configure the recording. Additionally, recorded video files might need to
be downloaded or copied to another device for archiving purposes; also they might
need to be deleted in order to manage disk space on the VGA Grid. For organizing,
recorded video files may need to be renamed. All of these management tasks are
available via the VGA Grid’s Web admin Interface.
9.1 Selecting Recording File Format
The required recording file format – MOV or AVI – can be specified for each channel
you are working with.
To select a file format:
1.
2.
3.
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Select a required channel in the Channel menu point of the Web Admin
interface.
Click Files Archive. The ability to manage a recording with the Web Admin
interface is done using the Recorded Files channel’s page.
Click the change command above the Recorded Files title (see Figure 52
Select Recording Format).
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Figure 52 Select Recording Format
4.
5.
Use the File Type drop-down list to select the recording format (MOV or
AVI).
Click Apply.
9.2 Changing File Limits (Time and Size)
The VGA Grid can record the channel to one or more files according to time and file
size limit parameters. It will automatically create and start recording to a new file
whenever either limit is reached.
To specify the time and file size limit parameters:
1.
2.
Click the change command.
Select the parameters values from the drop-down list (see Figure 53
Changing Time Limit and Size Limit).
Figure 53 Changing Time Limit and Size Limit
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3.
Click Apply.
Table 15 Time and file size limit parameters
Time limit
Size limit
Specify the maximum amount of time to record to a file.
When either the time limit or the size limit is exceeded,
the system starts recording data to a new file.
Specify the maximum size of the recorded file. When
either the time limit or the size limit is exceeded, the
system starts recording data to a new file.
9.3 Starting and Stopping Recording
The recording buttons and recorder status for each channel is shown in its Files
Archive section. To navigate to this section, click the Channel menu point of the
Web Admin interface. It is located on the left hand side of the screen above the Web
Admin interface’s main menu. Then select a required channel and click Files Archive.
Figure 54 Recorder Status
To start a recording, click the Start button in the Recorder status section of the main
menu.
To stop a recording, click the Stop button in the Recorder status section of the main
menu.
To restart recording to the same file, click the Reset button. The device will append
data to the existing file
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To close the file being recorded and start recording to a new file, click Stop. Then
click the Start button again.
9.4 Viewing the Current Recording
You can view the broadcast as it is being recorded.
If the channel is configured to record video from two sources:
Click the Live broadcast URL in the Channel Status section of the required channel. A
preview of the broadcast that is currently being recorded appears in the web
browser. The preview is exactly the same as what is being recorded.
To view video from the source click the Direct stream URL.
If the channel is configured to record video from a single source:
Click the Live broadcast URL in the Channel Status section of the required channel.
9.5 Recording a Stream on iPad, iPhone and iTouch
You can record a stream on iDevices using EpiphanTouch™. This discovery and
remote control application is available as a free download from iTunes and the App
store. It allows you to log into the device as the administrator user. Refer to
Epiphan’s EpiphanTouch App for iPad, iPhone, iTouch section for details.
9.6
Recording Data in Motion JPEG Format
To configure the channel before recording data in Motion JPEG format:
1. Select Motion JPEG in the Stream Type field (Stream setup section of the
channel page).
2. Use the Page refresh time parameter in the MJPEG webpage section on this
page to specify how often the browser updates the visual information coming
from the VGA Grid. In other words, how often the page is refreshed.
3. Click Apply.
9.7 Files Archive
The files archive for each channel lists all of the video files recorded by the VGA Grid
through this channel that are saved on it. To navigate to the files archive, click the
Channel menu option of the Web Admin interface. Then select a required channel
and click Files Archive.
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For each file, the list includes the name of the file, start and end times, duration, and
size in MB. Each recording file listing also includes icons that can be used to
download, delete, or rename the file.
Figure 55 Files Archive
9.7.1
Downloading Recordings
Download recordings to either save or view them. You can download a single file or
multiple files as a single .zip file.
1.
2.
3.
Click Files Archive.
Select the checkbox beside the file you want to download, or to download
multiple files, select the checkboxes beside all of them. Then select the
Download Selected button at the bottom of the file list.
Follow the instructions to download the file or files provided by the system.
If you select the Download Selected button, all of the files that you have selected
are downloaded in a single zip file. You must unzip this file to view the individual
video files.
If you have downloaded multiple files, select Continue to return to the Recorded
Files page.
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9.7.2
Deleting Files
The administrator user can delete files from the VGA Grid to free up space on the
hard disk. Files can be selected one at a time, or multiple files can be selected to be
deleted. Alternatively there is an option to delete all files that have been previously
downloaded.
1.
Click Files Archive.
2.
To delete individual recordings, select the Delete File icon
beside the file you want to delete. To delete multiple files, select
the checkbox beside the files you want to delete and then select
Delete Selected.
3.
Follow the instructions to delete the file or files. The files are
deleted from the hard disk.
9.7.3
Renaming Files
The administrator can rename one file at a time. Again, this function is done by
going to the Recorder Setup section from the Web admin interface main menu.
To rename a file:
1. Click Files Archive.
2.
Select the rename file icon
.
3.
Enter the new name for the file.
4.
Select Submit.
9.7.4
Viewing Closed Recording Files
Closed recordings can be viewed using the Web Admin interface and a compatible
media player.
The instructions below explain how to view a closed recording file using the default
media player installed on a computer. These instructions will only work when using
the default player. To view a closed recording file using another player the closed
file will need to be downloaded or copied to a host computer where this player is
installed. Once you have downloaded or copied the file to the host computer, the
recorded file can be opened from within the player itself.
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1.
2.
3.
4.
Recording
Once the recording is completed, log into the Web Admin interface.
Select a channel from the main menu, then click Files Archive and click the file
that is to be viewed.
The system will suggest you to open the file with the computer’s configured
default viewer. For example, for systems running Windows, the default player
is the Windows Media Player.
The player opens the window with the channel. If you have recorded two
channels in separate video tracks of the file, the player will display them in
separate windows. If you have recorded two channels in one track, the player
will display them both in one common window.
9.8 Recording Video from Multiple Channels on Separate
Tracks in a File
You can record video and audio from multiple channels currently being used in a
single file with video and audio tracks. This can be either channels streaming video
from the separate sources or channels streaming combined video from multiple
sources.
It is assumed that you have multiple sources connected to the ports of the VGA Grid
accordingly. The recording is made in one file with separate tracks.
To make recording:
1.
2.
3.
4.
5.
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Select the first channel in the Channels pane of the Web Admin interface.
In the channel’s Video Source Setup section, select the required input from the
Use video source drop-down list.
Perform the steps 1-2 for all channels.
Select All-in-one-Recorder.
Click Start to start recording video. All video tracks and the audio track are now
being recorded to a multi-track file. This file can be found in the Recorded Files
list on the same page.
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Figure 56 “All-in-one” Recorder
9.9 Recording Video from Multiple Sources on a Single
Track in a File
Video and audio from multiple sources can be recorded on one video and one audio
track. It is assumed that you have multiple local or remote sources connected to the
VGA Grid. The recording is made in one file with separate tracks.
To make recording:
1.
2.
3.
Configure the Multiple Sources channel as explained in Multiple Sources
Channel Setup.
Select the channel’s Files Archive section.
Click Start to start recording video. The data is now being recorded to a file. This
file can be found in the Recorded Files list on the same page.
9.10 File Transfer of Recorded Files
The VGA Grid provides several options to automatically copy recordings to a
network storage location, to an external HDD or a USB Storage Key.
9.10.1
Copying Recorded Files to a USB Flash Drive or to an external HDD
The VGA Grid is equipped with USB ports that can be used to copy recorded data
from the VGA Grid to an external HDD or USB flash drive formatted with one
partition in one of the following file systems: FAT32, ext3, ext2, ISO 9660, HFS. This
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is a great feature for professional AV service providers that want to provide a copy
of the presentation to the speaker before they leave the presentation venue.
An HDD or a flash drive can be connected to the VGA Grid any time.
To copy recorded files to a USB flash drive:
Stick a flash drive into a USB port on the device and press lightly. The stick fits into
the port only one way. After inserting, the VGA Grid will recognize the stick,
however, this occurs without any user notification whatsoever.
The VGA Grid copies to the inserted USB flash drive, all previously recorded files
starting from the oldest record to the newest. The flash drive’s LED (if any) will be
blinking indicating data transfer. The VGA Grid copies data to the flash drive until
there is not enough storage space for additional files or all recorded files have been
copied.
Due to speed limitations flash drives are not capable of recording data on the fly.
This means that while the previously recorded data captured by the VGA Grid on its
internal solid state memory will be copied to the flash drive, the currently opened
recording file cannot be copied until the file is closed. Once closed, it is then
available for copying.
Once the data has been copied, safely remove the flash drive.
To safely remove the flash drive:
1.
2.
Right-click the USB icon marked with a checkmark. It is located on the bottom
right of your taskbar. From the pop-up menu, click Safely Remove Hardware. A
small window will be displayed.
Select the USB flash drive you want to unplug then click the Stop button. A
confirmation window will appear. Click the appropriate hardware device, then
click OK. The Safe to Remove Hardware window will inform you that it's now
safe to unplug the USB flash drive from your computer.
To check its free storage, files that have been copies and their size, insert the drive
into a computer and see its properties.
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9.11 Automatic File Upload
The automatic file upload feature will automatically copy recorded video files from
the VGA Grid to another device on your network. This feature’s page is reached
from the Web admin interface’s main menu by clicking on Automatic File Upload.
By uploading recorded files to another network device, these files become available
to be viewed from other device without using the VGA Grid. This feature also
provides a method of automatically archiving recorded files after they are closed.
Table 16 Automatic File Upload Configurable Options
Enable Automatic File Upload
Protocol
How often
Remote path
Remove after upload
Mark file as downloaded
Show log of automatic file upload
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Check this box to enable this feature,
uncheck this box to disable this feature.
Select the upload client.
Select how often video files are to be
uploaded. By selecting On file rotation,
the VGA Grid uploads each video file
after it stops recording the current video
file and starts recording the next one.
You can also configure the VGA Grid to
upload all video files every 1, 6, 12, or 24
hours.
The path on the upload server to upload
the video files to. This path must match
an actual path on the server.
If you select this checkbox, the video
files will be deleted on VGA Grid after
uploading.
In case the check box is not selected, the
system check if there is enough place for
a new file based on the size limit value. If
there is not enough place, the system
deletes the oldest files.
Select the checkbox to keep the files on
VGA Grid after uploading copies to the
server. The filenames before uploading
are displayed in blue. The filenames
after uploading are displayed in purple.
Use this command to display the log of
file uploads
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Figure 57 Configuring the Automatic File Upload Feature
9.11.1 Configuring Automatic File uploads
Recorded files can be uploaded to a CIFS server (a Windows share), an RSync server,
or an FTP server.
To configure Automatic File Upload:
1.
2.
3.
4.
5.
6.
Select Enable Automatic File Upload.
Set Protocol to FTP Client, RSync Client, or CIFS client depending on what
upload server is being used.
If the How often option is set to On file rotation, the VGA Grid will upload
each video file after it stops recording to it. A file rotation can be forced by
clicking Reboot Now button in the Maintenance section. Alternatively, the
VGA Grid can be set to upload all video files every 1, 6, 12, or 24 hours.
Set Remote Path to the path on the upload server to upload the video files
to. This path must match an actual path on the server. If a path is not
provided, the files are uploaded to the root location.
Select the Remove after upload checkbox to delete all video files on the
VGA Grid after uploading them.
Select Mark file as downloaded to keep the files on the VGA Grid device
after uploading copies to the server. On the Web admin interface the
download icons for the uploaded files change to
.
Note: In case you select both checkboxes (Remove after upload and Mark
file as downloaded) the files uploaded to server will be removed from the
device.
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Recording
Configure the appropriate client for the designated upload server:



8.
If the upload server is a CIFS server (for example, a Windows
shared folder), select and configure the CIFS Client. See
Configuring the CIFS Client.
If the upload server is an RSync server, select and configure the
RSync client. See Configuring the RSync Client.
If the upload server is an FTP server, select and configure the FTP
Client. See Configuring the FTP Client.
Click Apply.
The first copy is made after the time period set in how often expires. For example, if
the System is set to upload files every hour, the first set of files is uploaded after one
hour. If five video files are saved in the first hour, those five video files are uploaded.
One hour later, all of the video files saved since the start of that hour are uploaded.
Video files saved before you selected Apply are not uploaded. For Files saved
before Automatic File upload is configured, a manual upload process will have to be
done.
9.11.2 Configuring the CIFS Client
Use the CIFS client configuration to have the VGA Grid behave as a CIFS client
connecting to a CIFS server (such as a Windows shared folder) when uploading
broadcast files. Different networks may have different CIFS server configurations. If
required, contact your network administrator for assistance with getting the System
to connect to the server. Depending on your CIFS server configuration you may not
have to enter information in every field shown in the following diagram.
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Figure 58 Configuring a CIFS Client
To configure the CIFS client:
1.
2.
3.
4.
5.
6.
7.
Select CIFS Client in the Protocol field.
Enter the Server port if the CIFS server uses a non-standard port. If your
CIFS server uses standard ports you should not have to add any information
to this field. If your server uses non-standard ports or looks for a nonstandard port first, enter the port number in this field.
Enter the Server address. This can be the numeric IP address or fully
qualified domain name of the CIFS server.
Enter Server share. This is the CIFS share name or the name of the
Windows shared folder on the CIFS server.
If required, enter the name of the CIFS Domain. The Domain can be a
Windows Domain or Work Group name.
Enter the Login and Password required to authenticate with the CIFS server
to connect to the server share.
Select Apply.
The VGA Grid will then attempt to connect to the CIFS server. The Web admin
interface displays messages about whether the System is able to connect to the CIFS
server and the status of the connection.
9.11.3 Configuring the RSync Client
Use the RSync client configuration to have the System act as an RSync client
connecting to an RSync server. Different networks may have different Rsync server
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configurations. If required, contact your network administrator for assistance with
getting the System to connect to the server.
Figure 59 Configuring the RSync Client
To configure the RSync client:
1.
2.
3.
4.
5.
6.
Select RSync Client in the Protocol field.
Enter the Server address.
Enter Server module which is a directory on the RSync server.
Enter the Login and Password required to authenticate with the RSync
server to connect to the server share.
Select the Checksum checkbox to enable computing checksums algorithm
applied during file synchronization between sender and recipient servers.
Select Apply.
The VGA Grid will then attempt to connect to the RSync server. The Web admin
interface displays messages about whether the System is able to connect to the
RSync server and the status of the connection.
9.11.4 Configuring the FTP Client
Use the FTP client configuration to have the VGA Grid act as an FTP client to an FTP
server to upload broadcast files. Different networks may have different FTP server
configurations. If required, contact your network administrator for assistance with
getting the System to connect to the server.
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Figure 60 Configure a FTP Client
To configure the FTP client:
1.
2.
3.
4.
5.
Select FTP Client in the Protocol field.
Enter the Server port if the FTP server uses a non-standard port. The
standard FTP port is TCP 21.
Enter the Server IP address.
Enter the Login and Password required to authenticate with the FTP server
to connect to the server.
Select Apply.
The VGA Grid will then attempt to connect to the FTP server. The Web admin
interface displays messages about whether the VGA Grid is able to connect to the
FTP server and the status of the connection.
9.11.5 Testing the Automatic File Upload
Test the automatic file upload to ensure all settings are correct.
To test automatic file upload:
1.
2.
3.
4.
5.
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Confirm that the upload server is operating.
Start recording a broadcast.
Log into the Web admin interface.
Select Automatic File Upload, from the main menu.
Set the How Often setting to On file rotation. The currently recording file
will be closed and saved.
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6.
7.
Networking
The recording will then be uploaded to the configured remote path using
the configured client.
Check the server to confirm that the most recently saved video file has
been uploaded to it and it is in the proper path location on that server.
If the file is not uploaded, verify that the client configuration and Automatic File
Upload configuration settings are correct. Check the remote device’s root path, if
the remote path is incorrectly configured, the file will be uploaded to that location.
Check the Files Archive section in the Channel menu point from the Web admin
interface:
If the Remove after upload checkbox is selected, the uploaded file should have been
deleted from the Archive section. If the Mark file as downloaded checkbox is
selected, the uploaded broadcast file download icon should be
.
10 Networking
Changing the network configuration involves setting how the VGA Grid receives an
IP address. IP addresses can be assigned statically or dynamically with the use of a
DHCP server. For network configuration changes to take effect, the System device
must be rebooted after making the changes, refer to the section Rebooting or
Restarting System.
If the IP address is changed, the VGA Grid must be removed from the Network
Discovery Utility and then re-discovered by selecting Search.
Additionally, the System’s MAC address is displayed on the Network Configuration
page. Providing the MAC address to your network administrator may be helpful for
managing your network.
10.1 Connecting Directly to the VGA Grid Concentrator
This section discusses how to directly connect to the VGA Grid Concentrator using
the factory default network settings. This method must be used if the network
where the Concentrator resides does not have a DHCP server, or it is desired to
simply connect a controlling computer and the Concentrator without a router, by
simply using a direct connect Ethernet cable.
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The next section discusses tools that can be used to discover the VGA Grid
Concentrator that has been plugged into the local network and been assigned an
appropriate IP address for the given network by a DHCP server. This network
discovery also applies if the device was assigned a static IP.
Either method, connecting directly or connecting using network discovery, is
required to access the VGA Grid Concentrator to allow for further configuring of the
device.
10.1.1 Default Network Settings
The VGA Grid comes with the following factory defaults:
IP: 192.168.255.250
Netmask: 255.255.255.252
User Name: admin (no password)
For more information on the admin user, see the section Users and Passwords.
10.1.2 Establishing Direct Connecting
Using the default network settings, perform the following steps:
1. Record the network settings of the controlling computer being used to connect
to the VGA Grid so that they can be restored later if needed.
2. Temporarily change the network configuration on the controlling computer to
the following:
a. Static IP assignment
b. IP address: 192.168.255.249
c. Subnet mask: 255.255.255.252
3. Establish an Ethernet connection between the VGA Grid and the controlling
computer by one of the following methods:
a. Connect the VGA Grid’s Ethernet port to the same Ethernet network as
the controlling computer.
b. Connect the VGA Grid’s Ethernet port to an Ethernet network switch
and connect the controlling computer’s Ethernet to that same switch.
c. Connect the VGA Grid’s Ethernet port directly to the controlling
computer’s Ethernet port using either a regular or a crossover Ethernet
cable.
4. Start a web browser on the workstation and browse to:
http://192.168.250/admin/
5. Log in as the administrator user:
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7.
Networking
User Name: admin
Password:<return>
The VGA Grid’s Web interface Admin opens. Review the section Networking to
set and configure a proper static IP address relevant to the network being used.
Restore the previously save network configurations on the workstation.
10.2 Network Discovery of the System
Instead of connecting directly as described in the previous section, to the System,
the System can be discovered on the network and its IP address can be obtained.
By default the System device is configured for DHCP. When it has been plugged into
a network with a DHCP server, the DHCP server automatically assigns an IP address
to the System relevant to the network. Determining the IP address assigned to the
System is required to access the System to allow for further configuring of the
device.
There are tools that will return the System’s IP address. Epiphan provides two such
tools and they are described in the following section.
Alternatively, contact the relevant network administrator to retrieve the System’s IP
address.
Regardless of the method used to obtain the System’s IP address, its assigned IP
address is required to allow for any further configuring.
10.2.1 Epiphan’s Network Discovery Utility
Epiphan’s Network Discovery Utility runs on a Windows based PC. It finds the
System device on the network and displays its assigned IP address. The Network
Discovery Utility can also be used to connect to the System Web admin interface
tool.
To install Epiphan’s Network Discovery Utility Tool:
1.
2.
81
Find the latest Network Discovery Utility on the website’s download page
(http://www.epiphan.com/downloads/).
Select Download Network Discovery Utility. Ensure to note the download
destination folder.
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3.
4.
Networking
Run NetworkDiscovery.exe from the above noted download destination
folder.
Select Search to find the Epiphan devices connected to the network.
The Network Discovery Utility can only find the Epiphan devices on the same
network as the Windows PC that is running this utility.
10.2.2 Epiphan’s EpiphanTouch App for iPad, iPhone, iTouch
EpiphanTouch™ is a discovery and remote control application available as a free
download from iTunes and the App store.
EpiphanTouch finds, provides the IP address, and can be used as a remote control to
start and stop broadcastings and recordings on the System. It will list all Epiphan
devices including the System operating on the same network as the iPhone, iTouch,
or iPad that is running the EpiphanTouch application.
To install and use EpiphanTouch from iTunes:
1.
Either follow the URL to go directly to the EpiphanTouch page in the App
store:http://itunes.apple.com/pk/app/epiphantouch/id424405619?mt=8#
or search for the EpiphanTouch application in the App Store using the
Search field.
Figure 61 Search for EpiphanTouch in the App Store
2.
82
Install the EpiphanTouch App on your iDevice.
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3.
4.
Networking
The EpiphanTouch will discover all Epiphan devices. The IP addresses of all
devices will be displayed. Record the IP address corresponding to the
System you want to configure. If there is more than one Epiphan device
on the network, you can identify your System by the serial number
displayed.
To use EpiphanTouch’s remote control feature, select the desired System
and log into the device as the administrator user. See the section Users
and Passwords for more details about logging into the System.
Figure 62 Log into the System as the Administrator
5.
Start or stop video capturing and recording.
10.3 Setting IP Address
Changing the network configuration involves setting how the System receives an IP
address. IP Addresses can be assigned statically or dynamically with the use of a
DHCP server. For network configuration changes to take effect, the System device
must be rebooted after making the changes. If the IP address is changed, the System
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must be removed from the Network Discovery Utility and then re-discovered by
selecting Search.
Additionally, the VGA Grid’s MAC address is displayed on the Network Configuration
page. Providing the MAC address to your network administrator may be helpful for
managing your network.
10.3.1
Set the System to use a static IP address
1.
Log into the Web admin interface.
2.
Select Network from the main menu.
3.
Select Use static address.
4.
Enter an IP Address, Network Mask, Default Gateway, and DNS Server that
are valid for your network. Ensure that this gateway setting is the gateway
of your local LAN, i.e. the local router. Contact your network administrator
if you are not sure what information to use. The IP address, Network Mask,
Default Gateway, and DNS Server assigned must be compatible with your
network.
Select Apply to save these changes.
5.
Select Maintenance.
6.
Select Reboot Now.
7.
It takes a few minutes for the VGA Grid device to reboot.
8.
After a few minutes log into the Web admin interface. Logging into the
Web admin interface can be done by:
9.
a.
Using a browser and browsing to the new IP address assigned to
the System.
b.
Using the Network Discovery Utility.
Re-log into the Web admin interface using the administrator username and
password.
10.3.2 Set the VGA Grid to use a DHCP server
By default, the VGA Grid is configured to connect to a network using a DHCP server,
the DHCP server will automatically configure the network settings and assign a
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relevant IP address to the VGA Grid. This section describes how to re-enable DHCP
settings if they have been disabled.
1.
Log into the Web admin interface.
2.
Select Network from the main menu.
3.
Select Use DHCP. The other fields can be left as is.
4.
Select Apply to save these changes.
5.
Select Maintenance.
6.
Select Reboot Now. It takes a few minutes for the VGA Grid to reboot.
7.
After a few minutes log into the Web admin interface. Logging into the
Web admin interface can be done by:
8.
a.
See the section Network Discovery of the System on how to obtain
the IP address for VGA Grid.
b.
Using a browser and browsing to the new IP address assigned to
VGA Grid.
c.
Using the Network Discovery Utility, see the section Logging into
the Web Admin Interface Using a Web Browser and the IP Address
of the for more details.
Re-log into the Web admin interface using the administrator username and
password.
The following diagram shows the network page from the Web admin interface and
enabling DHCP.
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Figure 63 Enabling DHCP
11 System Administration
11.1 Setting the Date and Time
The date and time can be set manually or time synchronization can be enabled on
the VGA Grid. Configuring how the date and time is managed on the System is done
by selecting Date and Time from the Web admin interface’s main menu.
Clicking Enable Time Synchronization on the Date and Time page results in the date
and time being received from a public network time protocol (NTP) server. This is
done by having the System connect to the server over the Internet. NTP uses UDP
and port 123. The default NTP server is time.nrc.ca. This should be changed to an
NTP server that is recommended for your location. This information should be
available from your network administrator.
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For more information about NTP, including a list of recommended NTP servers, refer
to the following webpage: The NTP Public Services Project.
To get the correct time from the NTP server, ensure that the correct Time Zone for
the location of the System is selected.
If the VGA Grid device cannot connect to the Internet and there is an RDATE server
on the network, you can set time synchronization to use RDATE (as defined by RFC
868). Contact your network administrator for the address of the RDATE server and
enter the RDATE server IP address into the Server IP Address field.
In both cases, how often the date and time is updated can be configured. The Time
Update interval can be every 1, 6, 12, or 24 hours.
Figure 64 Setting the Date and Time
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The following table summarizes the configurable options for setting the date and
time.
Table 17 Date and Time Configurable Options
Time Zone
Select the appropriate time zone
Enable time
synchronization
This parameter enables time synchronization with a NTP
or RDATE server
Protocol
Select the time protocol
Server IP
Address
Enter the IP address of the NTP or RDATE server
Update interval
Specify the frequency of time synchronization
Set time
manually
This parameter enables manual time setting
Date (yyyy-mmdd)
Specify the date
Time (hh:mm:ss)
Specify the time
RTC calibration:
(-31..+31).
This field allows RTC calibration, the slowing or speeding
the clock up to 10 sec/day. Negative numbers slow the
clock down up to 5 seconds a day and positive numbers
speed up the clock up to 5 seconds a day.
11.2 Users and Passwords
11.2.1
Configuring the Administrator User Password
Initial factory settings provide no password for the administrator user. For security
reasons, a password to control access to the administration functions should be
added. The administrator user’s password can be added or changed at any time in
the Admin Access section.
If you lose or forget the admin password you can reset the device to its factory
default setting. See Restoring the System Default Factory Configuration in order to reset
the device to factory defaults.
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To add or change the Administrator password:
1.
Log into the Web admin interface.
2.
Select Admin Access.
3.
Enter and repeat the new password. The password is case sensitive and can
include up to 255 ASCII characters.
4.
Select Apply. The Web admin interface will log off the current
administrator user.
5.
When prompted, re-log into the Web admin interface with the admin user
name and the new password.
Figure 65 Adding or Changing the Administrator's Password
Deleting the Administrator password
The administrator password can be deleted if it is not required. However, by
removing the administrator password, it makes it easier for unauthorized users to
change the System’s configuration.
11.2.2
To delete the Administrator password:
1.
2.
3.
4.
89
Log into the Web admin interface
Select Admin Access. The password fields will be blank.
Select Apply. Leaving the password fields blank.
When prompted, re-log in leaving the password field blank.
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System Administration
11.3 Configuring Viewer Access
Controlling viewer access to a broadcast can be done in two different ways. The first
is to assign a password to the VGA Grid’s viewer password and the second is to
enable IP Address based authentication. By default the viewer user does not have a
password to control access and no IP Address based authentication is enabled.
Figure 66 Changing the Viewer Password or IP Based Authentication
11.3.1 To add or change the viewer password
Used to add or change the password associated with the viewer user. The viewer
access password is the same for all viewers until it is changed. Any viewer that
knows the password will continue to have access until the password is changed. It is
good practice to change the password each time there is a change in the users that
should be authorized to access the broadcast. Please contact your network security
administrator with respect to password management required for your applications.
Once a viewer password is configured, participants must obtain the current viewer
password in order to log in. The user name is always the same: viewer. It cannot be
changed. If the viewer password is changed during a broadcast, the broadcast is
interrupted and all viewers will be required to re-log in using the new viewer
password in order to continue receiving the broadcast. Depending on how the
viewer is receiving the broadcast, this will involve clicking the refresh button in the
viewer’s browser or clicking on the play button in the viewer’s media player.
1.
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Log into the Web admin interface.
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2.
Select Viewer Access.
3.
Enter and repeat the new password. The password is case sensitive and can
include up to 255 ASCII characters.
4.
Select Apply.
5.
Distribute or communicate the viewer access password to authorized
viewers of the broadcast.
11.3.2 Configuring IP-based Authentication for Viewers
This function allows the option of providing access to the broadcast to a large
number of users without having each individual user log in with the viewer
username and password. This is done by configuring individual IP addresses or a
range of IP addresses that are either granted access or denied access to the
broadcast. Once set up, users can access the broadcast just by clicking on a supplied
link. The administrator for the broadcast would continue to access the Web admin
interface using the administrator user credentials to access all features.
The list of allowed IP addresses has a higher priority over the list of denied IP
addresses. An example of how this is implemented would be the following:
1.
2.
In the Deny IP’s field enter 192.168.1.1-100.
In the Allow IP’s field enter 192.168.1.22, 192.168.1.33.
Access to the broadcast will be forbidden for the entire subset of addresses except
for 192.168.1.22, 192.168.1.33.
The set of users must have a fixed IP address or a range of IP addresses through
which they connect to the internet. Individual computers may have dynamic serverassigned addresses but as long as they use a gateway with a static address to access
the internet, this feature can be configured
IP authentication is primarily about convenience, rather than extra security. The
level of security is comparable with that of a password-based authentication. Bear in
mind that anyone who has access to a computer within the specified range will be
able to access the broadcast without having to provide log in credentials. Also it is
probably not possible to restrict access to a single computer since in most networks
a number of computers share a single gateway to the internet.
The table below shows the fields used in configuring IP-based Authentication for
Viewers.
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Deny IP’s
Enter individual IP addresses separated by a comma or a range of IP
addresses that are denied access to the broadcast. To specify a range
of addresses, use a hyphen (-).
Example 1: 192.168.1.17, 192.168.1.32
Allow IP’s
Example 2: 192.168.1.1-100
Enter individual IP addresses separated by a comma or a subset of IP
addresses that are granted access to the broadcast. To specify a range
of addresses, use a hyphen (-).
11.3.3 Delete the Viewer Password
The viewer password can be deleted if viewers are not required to enter a password
to access the broadcast.
1. Log into the Web admin interface.
2.
Select Viewer Access. The password fields should be blank.
3.
Select Apply without adding characters to the password fields. The
password is deleted.
11.4 Upgrading the System Firmware
New firmware is released to fix known problems or to add new features. When
available, new firmware versions can be obtained from Epiphan Support.
Installing new firmware can take several minutes. Once a firmware upgrade is
started, the VGA Grid cannot broadcast or record streams until the firmware
upgrade is complete.
11.4.1
Installing new firmware
Do not interrupt or power down the VGA Grid device during the firmware update.
1. Log into the Web admin interface.
2.
Select Firmware Upgrade from the main menu.
3.
Click the Check for updates command. The VGA Grid will indicate whether any
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updates are available. If updates are available, select Browse and then select
the downloaded firmware file.
4.
Select Apply. The firmware file is uploaded to the VGA Grid. It then unpacks the
firmware file, verifies the contents and then upgrades the firmware.
5.
To complete the firmware upgrade you must reboot the VGA Grid. Refer to the
section Rebooting or Restarting System.
6.
Log into the Web admin interface and confirm that the VGA Grid is now running
the new firmware version by selecting Info from the main menu and by viewing
the firmware version.
Should the firmware update fail, restore to the default factory configuration. Refer
to the section Restoring the System Default Factory Configuration.
Figure 67 Firmware Upgrade
11.5 Maintenance Controls
From the Web admin interface’s main menu, select Maintenance to perform
operations such as restoring the factory configuration, and rebooting the System.
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Figure 68 Maintenance Options
11.5.1 Restoring the System Default Factory Configuration
Select Restore beside Restore Factory Configuration to reset the broadcasting and
Frame Grabber settings back to the default factory configuration. The default
factory configuration is the configuration that the VGA Grid had when it was
received from Epiphan. It can be useful to return the VGA Grid to this configuration
if a number of configuration changes have been made that need to be reversed.
Pressing the reset button on the VGA Grid will also perform a reset to the default
factory configuration. See the section, System Hardware Features, for information
on the location of the reset button and the proper steps that need to be followed to
perform a hardware based factory reset.
11.5.2 Rebooting or Restarting System
Many VGA Grid configuration changes require you to reboot the System in order to
have these changes come into effect, the following outlines the steps to reboot the
System.
To reboot or restart the system:
1. Log into the Web admin interface.
2. Select Maintenance.
3. Select Reboot now.
The reboot process is not lengthy and once completed, the System will resume
normal operation.
11.5.3 Shutting down the System
You can shut down the system either pressing the Power button on the device or
selecting the Shutdown command in the Web admin interface.
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Serial Port Configuring
To shut down the system:
1.
2.
3.
Log into the Web admin interface.
Select Maintenance.
Select Shutdown now.
12 Serial Port Configuring
The System can be integrated with control equipment that uses an RS-232 interface.
This RS-232 interface is used to trigger the device to perform various actions by
sending a command over the RS-232 connection, refer to the RS-232 Commands
chapter for more information about these commands.
To connect your control equipment to the VGA Grid, use a standard RS-232 nullmodem cable. Then an RS-232 serial adapter is connected to the RS-232 null-modem
cable before inserting it into one of the two USB ports on the System.
The standard VGA Grid package does not include an RS-232 serial adapter but one
can be purchased from Epiphan as an optional accessory.
Flow control is the only configurable item for this feature. This is done by navigating
to the Serial Port section of the Web admin interface.
Table 18 Configuring the Serial Port Feature
Flow control
Flow control means the ability to slow down the flow of
bytes in a wire. For serial ports this means the ability to
stop and then restart the flow without any loss of bytes.
Specify by what means this control will be performed:
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-
Hardware
-
Software
-
None
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Customizing Presentation and Web Content
Figure 69 Configuring the Serial Port Feature
13 Customizing Presentation and Web Content
This feature allows the customizing of the viewer’s Web browser’s display of the
broadcast. For example, the event’s name, company logos and other pertinent data
can be displayed to the viewer. To use this option, select Branding from the Web
admin interface’s main menu.
To customize the design you need to create an .xsl file using XML document
formatting. The creation of this file is beyond the scope of this document.
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Customizing Presentation and Web Content
Figure 70 Customizing Web Content
The table below outlines how to select and upload the necessary files to customize
the viewing browser.
Table 19 Web Content Configurable Options
Templates
Other files
Upload files/templates
97
Available template files are displayed. To select a
template, click a radio button near its name. Then click
Apply.
Files that were uploaded and used during template
creation are displayed.
Browse to the template or file you need to upload and
click Upload.
VGA Grid User Guide
Configuring Remote Support
14 Configuring Remote Support
The VGA Grid uses remote support settings to communicate with the Epiphan
maintenance server. When enabled, communicating with the maintenance server
allows Epiphan to review the device configuration, firmware version, and other basic
operating parameters. If you contact Epiphan Support for help with the System, the
support team can use this maintenance information to help remotely troubleshoot
the problem.
The System device does not send private information to the Epiphan maintenance
server, just basic operation and configuration information. The amount of traffic
sent to the Epiphan maintenance server is small and should not affect the network
or Internet throughput.
By default, communication with the Epiphan maintenance server uses TCP port 30.
The default address of the Epiphan maintenance server is epiphany.epiphan.com.
The VGA Grid must be able to find a DNS server to resolve the default address and
then must be able to connect to this address on the Internet using TCP port 30. If
the VGA Grid’s network settings are set to use DHCP, it gets the address of the DNS
server from the DHCP server. If network settings are set to use a static IP address,
the IP address of the DNS server must be entered. This IP address can be retrieved
from your network administrator.
If you have a firewall or some other device protecting the network from the Internet
and you would like to enable remote support, the configuration of this device may
have to be changed for the System to connect to the Epiphan maintenance server.
Contact your network administrator for assistance.
Remote support is enabled by default. Use the Maintenance section in the Web
admin interface to access the Remote support settings and refer to the following
diagram and table for more details on how to configure this feature.
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Configuring Remote Support
Figure 71 Remote Support Configuration
Table 20 Remote Configuration Options
Enable Remote Support
99
Allow Epiphan Support to log into the System with
special access privileges to troubleshoot problems.
VGA Grid User Guide
Enable connection to
maintenance server
Server Address
Server Port
Configuring Remote Support
The VGA Grid establishes an outgoing TCP connection
to the Epiphan maintenance server using TCP port
30. Using this connection, the device sends
information to the Epiphan maintenance server and
Epiphan Support can use this connection to remotely
log into the device.
The address of the Epiphan maintenance server. This
address is usually epiphany.epiphan.com. Only
change this address if required, and only if
recommended by Epiphan Support. For example, this
might be changed to a numeric IP address if the
System cannot connect to a DNS server.
The Epiphan maintenance server’s port number.
You can enable and disable remote support and the connection to the maintenance
server independently.
The following table describes the results of different configurations:
Table 21 Different Results by Enabling/disabling Remote Support and Connection to the
Maintenance Server
Enable
Remote
Support
Enable
Connection to
Maintenance
Server
Yes
Yes
The VGA Grid connects to the Epiphan maintenance
server. If required, Epiphan Support can remotely
connect to the device with special access privileges.
No
Yes
The VGA Grid connects to the Epiphan maintenance
server. Epiphan Support can remotely connect to the
Web admin interface with the same access privileges
as an administrator.
Yes
No
The VGA Grid does not connect to the Epiphan
maintenance server. If required, Epiphan Support can
remotely connect to the device with special access
privileges. If you provide remote access to your
network in some other way (for example, using port
forwarding). Contact Epiphan Support for assistance.
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VGA Grid Information
Please contact your network security administrator to review your security settings
for the VGA Grid.
15 VGA Grid Information
To display the following VGA Grid information, select Info from the Web admin
interface’s main menu:
1.
2.
3.
The current firmware version including the version number and details of
the firmware build.
The information about channels including video sources, stream types,
bitrate, frame size, configured FPS and actual FPS.
The information about used memory and overall system load.
16 Disk Check
A disk maintenance schedule can be set up for checking the VGA Grid’s hard disk for
errors. The hard disk maintenance schedule includes running a disk check after
either a configured number of device restarts or after a configured number of
months of operation. This is configured on the Disk Check page which is opened by
selecting Disk Check from the Web admin interface’s main menu.
This page allows the number of the VGA Grid restarts before a disk check is to be
performed and the number of months to lapse prior to a disk check to be
configured. The system will trigger a disk check based on these values and based on
whichever event occurs first. The actual disk check process will be run the next time
the VGA Grid restarts. The disk check occurs during system startup and can cause a
lengthy delay in starting up the device.
Alternatively on the same page, select Check disk now to immediately perform the
disk check. Clicking this button causes the device to stop recording and to check the
disk immediately. The disk check process can take a few minutes. The System
automatically resumes recording after the disk check is complete. Results of the disk
check are not displayed unless errors that cannot be corrected are found.
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Disk Status Information
Figure 72 Configuring the Disk Maintenance Schedule
17 Disk Status Information
In the Disk status section of the Web admin interface’s main menu, the total
amount of space available on the System’s solid state memory in GB is listed.
Additionally, the used and available space in GB, and the amount used as a
percentage of the total amount of space on the disk is displayed for quick reference.
If the VGA Grid is running low on disk space the administrator can delete files. The
administrator can also configure automatic file uploads to keep the VGA Grid from
running out of disk space. The VGA Grid stops recording if there is less disk space
available than the amount required saving a broadcast file.
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Configuring using a Third-Party Application
18 Configuring using a Third-Party Application
The VGA Grid can be configured and managed with the third-party applications or
with a script that sends commands to the VGA Grid as URLs. Please contact Epiphan
for the most recent updates to the API.
This chapter describes:
-
Serial port configuration;
RS-232 commands;
Syntax for HTTP API Commands;
Keys for HTTP API Commands;
and finally provides some examples.
18.1 Serial Port Configuration
The System’s serial port configuration has the following settings:
Parameter
Speed
Data bits
Parity
Stop bits
Flow control
Value
19200 bps
8
None
1
Hardware
18.2 RS-232 Commands
The System implements an RS-232 interface allowing for the easy integration with
existing control room and board room equipment.
Some of the commands require channel name as an argument. Channel name
should be separated from the command name by a period – “.”. Either a channel
name or a channel index can be specified. An empty channel name can be provided
for some commands. In this case this setting is interpreted as all channels. If more
than one channel has the same name the command will apply only to one channel,
so the channel index should be used instead.
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Table 22 Serial Interface commands and Status Report commands and description
STOP.<channel>
STOP
START.<channel>
START
SNAPSHOT.<channel>
SNAPSHOT
GET.<channel>.<key>
SET.<channel>.<key>=<value>
SAVECFG
STATUS.<channel>
STATUS
FREESPACE
RECTIME.<channel>
RECTIME
Stop recording for the channel by setting
rec_enabled to "".
This has the same effect as
SET.<channel>.rec_enabled="" SAVECFG.
Stop recording for all channels
Start recording for the channel by setting
rec_enabled to "on".
This has the same effect as
SET.<channel>.rec_enabled=on SAVECFG.
Start recording on all channels
Take snapshot on the specified channel (must be
MJPEG)
Take snapshot on all channels (must be MJPEG)
Get value of a broadcasting parameter <key>.
Please refer to section Broadcasting Setup Keys for
details.
Set value of a broadcasting parameter. Parameter
values containing spaces must be enclosed in
quotation marks (either single or double). New
values might not take effect immediately and will
be lost after the reboot unless SAVECFG command
is issued later.
Save parameters values modified by SET command.
Report status of recording service for the channel.
Status values are: "Running", "Stopped",
"Uninitialized ".
Report status of recording service for all channels.
Report free space on the data partition, in bytes.
Report elapsed time for the current file being
recorded.
Report elapsed time for the current recording file
for all channels.
If any of the START commands are given while a recording is already in progress, the
current recording will be stopped and a recording with the new settings will be
started. The VGA Grid periodically reports its status back using the following
messages:
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Status Line Value
RECTL STATUS {UP <time>|DOWN
<time>|UNKNOWN}
Status of the recording
RECTL MICVOLUME <0-100> Level of line-in amplification (percents)
RECTL PCMVOLUME <0-100> Level of line-out amplification (percents)
Each status line is terminated with an LF (ASCII code 10) character.
18.3 Syntax for HTTP API Commands
You should use the channel parameter in URL, where N is zero-based channel index.
Use the following syntax to get configuration settings:
http://<address>/admin/channelN/get_params.cgi?key
Use the following syntax to set or change the configuration:
http://<address>/admin/channelN/set_params.cgi?key=value
In this example <address> is the IP address or name you use to connect to the
System admin interface.
E.g., if you log into the VGA Grid’s Web admin interface using
http://192.30.23.45/admin, then <address> would be 192.30.23.45.
Key is the name of the object of the VGA Grid to be viewed or changed. See the next
section for more information on the valid values for key.
Value is the value to be set. Some values include spaces, for example, the frame
size can be 1024 x 768. Use %20 for spaces, for example:
framesize=1024%20x%201068
You can include multiple <key>or <key>=<value>statements in one URL. Separate
the statements with &.
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To start all-in-one recorder:
http://admin:@192.168.1.86/admin/set_params.cgi?_c=_multiplexed&rec_enabl
ed=on"
To stop all-in-one recorder:
"http://admin:@192.168.1.86/admin/set_params.cgi?_c=_multiplexed&rec_enabl
ed="
For the third-party applications like wget, you should always include the admin
username and password to change the VGA Grid configuration. The syntax for using
wget to enter URLs is:
18.4 Keys for HTTP API Commands
This section lists and describes all of the keys that can be used in HTTP API
commands to view or change the System configuration. These keys are broken into
the following types:
 Device Info Keys
 Broadcasting Setup Keys
 ASF Encoder Keys
 RTP Unicast Keys
18.5 Device Info Keys
These keys are used for getting information about the device.
Table 23 Device Information Keys
Key
Description
vendor
Name of a vendor. The value is always "Epiphan Systems
Inc.”
product name
Name of a product.
firmware_version
Firmware version.
mac_address
MAC address.
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18.6 Broadcasting Setup Keys
These keys are used for getting or setting the broadcasting setup.
Table 24 Broadcasting Setup Keys
Key
framesize
htmlrefresh
streamport
streamtype
Description
Get or change the frame size in pixels, for example 1024
x 768. Use %20 for spaces. The supported resolutions
are 640 x 480, 720 x 400, 720 x 480, 720 x 576, 768 x
576, 1024 x 768, 1152 x 864, 1280 x 720, 1280 x 768,
1280 x 960, 1280 x 1024, 1360 x 768, 1360 x 1024, 1600
x 1200, and 1920x 1200
Get or change the Flash/Mjpeg webpage page refresh
time in seconds. The range is 0 to inf (infinite). 0 means
that page will not refresh.
Get or change the stream port number. The range is
1000 to 65535. You cannot use port 5557 because this
port is used for network discovery.
Get or change the stream type:






vbitrate
bcast_disabled
audio
usenosignal
vbufmode
107
0 - Flash
1 - Flash+H.264
2 - ASF
3 - ASF+H.264
4 - MJPEG
5 – RTSP
Get or change the video bit rate in kbit/s, for example
vbitrate=65536. You can use short forms such as
vbitrate=64K and vbitrate=1M.
Possible values are 'on' or empty. Broadcasting will be
disabled if the value is 'on'.
Possible values are 'on' or empty. Enables broadcasting
of audio signal.
Possible values are 'on' or empty. Displays “No signal”
image if the signal is off.
Use this key to define compression level of the
broadcast. E.g., in the Strong mode the broadcast
parameter strictly correspond to the specified bitrate.
VGA Grid User Guide
Configuring using a Third-Party Application
Select the level:



fastvideo
Relaxed
Balanced
Strong
Enables fast video.
Possible values are 'on' or empty
Enables time labeling functionality.
Possible values:
 'none'
 'date'
 'hms'
 'date_hms'
 'hms_ms'

'date_hms_ms'
Minimum interval between key frames.
Video frame rate limit.
timelabel
vgopsize
fpslimit
18.7 ASF Encoder Keys
These keys are used for getting or setting ASF encoder settings. You can change ASF
encoder settings when stream type is set to ASF stream.
Table 25 ASF Encoder Keys
Key
title
author
copyright
comment
Description
Add a title for the video being broadcast. Use %20 for spaces.
Add the name of the author of the video being broadcast. Use
%20 for spaces.
Add copyright information for the video being broadcast. Use
%20 for spaces.
Add a title for the video being broadcast. Use %20 for spaces.
18.8 RTP Unicast (Peer-to-peer connection) Keys
These keys are used for getting or setting RTP unicast settings. You can change these
settings when stream type is set to RTP.
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Examples
Table 26 RTP Unicast Keys
Key
unicast_enabled
unicast_address
unicast_aport
unicast_vport
Description
Enable RTP unicast. Possible values are 'on' or empty.
Get or change the unicast address.
Get or change the unicast a port.
Get or change the unicast v port.
18.9 Recorder Keys
These keys are used to enable or disable the recording of a broadcast.
Table 27 Recorder Keys
Key
rec_enabled
Description
Enables recording functionality. Possible values are 'on' or
empty.
19 Examples
For a System with an IP address of 192.30.23.45, and admin password of pass123,
one can use wget to do the following:

Enter the following command to view the broadcasting stream type and
frame size:
wget --http-user=admin --http-passwd=pass123
"http://192.30.23.45/admin/get_params.cgi?streamtype&framesize"

Enter the following command to set the broadcasting stream type to ASF,
add the title “System Stream”, and enable recording audio.
wget --http-user=admin --http-passwd=pass123
"http://192.30.23.45/admin/set_params.cgi?streamtype=2
&title= System %20Stream&audio=on"
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Sample Configurations
20 Sample Configurations
This chapter describes video and audio parameters recommended for performing
slides and video recording from PC, Mac and iPad.
PC with video
Stream type
Video encoding preset
Video encoding profile
Enhanced compatibility mode (h.264
slicing for RTP)
Key frame interval
Limit frame rate
Bitrate
Rate control mode
Audio format
Audio sample rate (Hz)
RTSP (H.264 codec). However Flash
(H.264 codec) or ASF (H.264) stream
types are also acceptable.
High Speed
Main
OFF
60
30
2000 kbits for ~ HD; 3000 kbits for ~ Full
HD
Low delay
Raw PCM
22050
Mac with video
Stream type
Video encoding preset
Video encoding profile
Enhanced compatibility mode (h.264
slicing for RTP)
Key frame interval
Limit frame rate
Bitrate
Rate control mode
Audio format
Audio sample rate (Hz)
Stream type
110
RTSP (H.264 codec).
High Speed
Main
ON
60
30
3000 kbits for ~ HD; 4000 kbits for ~ Full
HD
Low delay
Raw PCM
22050
PC with slides
RTSP (H.264 codec). However Flash
VGA Grid User Guide
Video encoding preset
Video encoding profile
Enhanced compatibility mode (h.264
slicing for RTP)
Key frame interval
Limit frame rate
Bitrate
Rate control mode
Audio format
Audio sample rate (Hz)
Sample Configurations
(H.264 codec) or ASF (H.264) stream
types are also acceptable.
High Quality
High
OFF
60
15
3000 kbits for ~ HD; 4000 kbits for ~ Full
HD
Low delay
Raw PCM
22050
Mac with slides
Stream type
Video encoding preset
Video encoding profile
Enhanced compatibility mode (h.264
slicing for RTP)
Key frame interval
Limit frame rate
Bitrate
Rate control mode
Audio format
Audio sample rate (Hz)
RTSP (H.264 codec).
High Quality
High
ON
60
15
3000 kbits for ~ HD; 4000 kbits for ~ Full
HD
Low delay
Raw PCM
22050
iPad with slides
Stream type
Video encoding preset
Limit frame rate
Quality parameter
Motion JPEG
High Quality
30
40 — for MJPEG only
iPad with video
Stream type
Video encoding preset
Limit frame rate
111
Motion JPEG
High Speed
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VGA Grid User Guide
Quality parameter
112
Sample Configurations
40 — for MJPEG only
VGA Grid User Guide
Troubleshooting
21 Troubleshooting
In this chapter you will find some solutions to some of the more common situations
and issues you may come across.
Observation
No sound is coming from an
audio source
Too much noise on audio
Insufficient image quality
Low fps
I cannot play the broadcast in my
media player/browser
113
Corrective action
Verify the Input Source parameter value in the
Audio menu item of the web interface. It should
correspond to the selected source type (Line or
Microphone).
Verify the Input Amplifier Volume parameter
value in the Audio menu item of the web
interface. It is recommended to select 40% in
this field.
To provide better productivity and higher image
quality:
1. Make sure that the source resolution
matches the resolution of the recorded
image. Ensure that the Frame size
parameter value in the Stream Setup menu
item of the web interface equals the frame
size of the source image.
Example: If the source video resolution is 720p,
set the Frame size to 1280x720
2. Increase the Bitrate value and/or decrease
the Limit frame rate value in the Stream
Setup menu item.
Increase the Limit frame rate value and/or
decrease the Bitrate value in the Stream Setup
menu item. Refer to Select Video Codec for
details.
Alternatively, enter low negative value (-5) in
the Frame Grabber’s Vertical Shift field.
First, check the LEDs activity on the VGA Grid.
Further, verify whether the Stream Type
parameter in the Stream Setup corresponds to
the media player being used. Refer to Streaming
format/Player Compatibility for details.
If the issue is not solved, disable all firewalls
VGA Grid User Guide
The broadcast interrupts or the
image breaks up
Record issues
Firmware upgrade
114
Troubleshooting
(Windows).
If the suggested steps do not solve your issue,
please contact Epiphan Support.
Verify the Stream Setup settings as described
above in the “Insufficient image quality”
section.
If the issue is not solved, verify your network
connections as well as network filters, routers
and applications settings. Packet loss may result
in broadcast failure.
If the record does not start up, view the Disk
Status Information and check whether there is
enough disk space for a new file of desired size.
If the issue is not solved, perform a Disk Check
and start the record again.
If you are unable to upgrade firmware manually,
i.e. upload firmware to the device from your
working station, reboot the device and retry.
VGA Grid User Guide
List of Figures
22 List of Figures
Figure 1 Epiphan's VGA Grid Delivering High Quality Video and Audio to Local and
Remote Clients ............................................................................................................. 7
Figure 2 Front View of the VGA Grid ........................................................................... 8
Figure 3 VGA2Ethernet (front view) ............................................................................ 9
Figure 4 VGA2Ethernet (rear view) ............................................................................ 11
Figure 5 3.5mm Mini-jack .......................................................................................... 12
Figure 6 VGA to DVI cable .......................................................................................... 13
Figure 7 DVI to DVI Cable ........................................................................................... 13
Figure 8 HDMI to DVI Adapter ................................................................................... 14
Figure 9 RJ-45 Male Cable .......................................................................................... 14
Figure 10 Web Admin Interface's Main Menu ........................................................... 19
Figure 11 Data Capture Flow ..................................................................................... 22
Figure 12 Data Recording Flow .................................................................................. 22
Figure 13 Data Streaming Flow .................................................................................. 23
Figure 14 Digital Source Setup ................................................................................... 25
Figure 15 Remote video source settings .................................................................... 28
Figure 16 Audio Configurable Options ....................................................................... 30
Figure 17 The Add Channel Command ...................................................................... 31
Figure 18 Naming the Channel .................................................................................. 32
Figure 19 New Channel Named “Video Channel” ...................................................... 33
Figure 20 Channel Deletion........................................................................................ 33
Figure 21 Setting Position and Size for Multiple Sources .......................................... 34
Figure 22 Stream Settings .......................................................................................... 38
Figure 23 Common Settings ....................................................................................... 38
Figure 24 Audio Settings ............................................................................................ 39
Figure 25 Protocol Stack Diagram .............................................................................. 40
Figure 26 Peer-to-peer Connection ........................................................................... 42
Figure 27 Multicast RTP Broadcasting to More than One Viewer ............................. 43
Figure 28 RTP/UDP settings in Stream Setup............................................................. 43
Figure 29 RTP/UDP Settings in Publish Stream .......................................................... 44
Figure 30 Using a CDN Service Increases Scalability of Concurrent Viewers ............. 46
Figure 31 URL to Epiphan Server ............................................................................... 47
Figure 32 System Message in Case of Excessive Bitrate Speed ................................. 47
Figure 33 Selecting Options for Streaming through Epiphan.net .............................. 48
Figure 34 Epiphan’s Portal ......................................................................................... 49
Figure 35 Plugins Available for Selection on the Portal ............................................. 49
Figure 36 Code for Stream Embedding ...................................................................... 49
Figure 37 Listing of Direct URLs ................................................................................. 50
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VGA Grid User Guide
List of Figures
Figure 38 RTSP Announce Functionality .................................................................... 51
Figure 39 VGA Grid Channel Selection ....................................................................... 52
Figure 40 Stream Setup.............................................................................................. 53
Figure 41 Adding a Live Stream ................................................................................. 54
Figure 42 Stream Type Selection ............................................................................... 54
Figure 43 Live Stream Settings ................................................................................... 55
Figure 44 RTP/UDP stream settings ........................................................................... 55
Figure 45 Downloading SDP file ................................................................................. 56
Figure 46 Uploading the SDP File ............................................................................... 56
Figure 47 Finalizing Process ....................................................................................... 57
Figure 48 Embed Code/URL ....................................................................................... 57
Figure 49 Generate Embed Code ............................................................................... 58
Figure 50 URLs of the Broadcast Displayed in the Channel Status Section ............... 59
Figure 51 Viewing a Broadcast Using a Web Browser ............................................... 61
Figure 52 Select Recording Format ............................................................................ 65
Figure 53 Changing Time Limit and Size Limit............................................................ 65
Figure 54 Recorder Status .......................................................................................... 66
Figure 55 Files Archive ............................................................................................... 68
Figure 56 “All-in-one” Recorder ................................................................................ 71
Figure 57 Configuring the Automatic File Upload Feature ........................................ 74
Figure 58 Configuring a CIFS Client ........................................................................... 76
Figure 59 Configuring the RSync Client ...................................................................... 77
Figure 60 Configure a FTP Client ................................................................................ 78
Figure 61 Search for EpiphanTouch in the App Store ................................................ 82
Figure 62 Log into the System as the Administrator .................................................. 83
Figure 63 Enabling DHCP ........................................................................................... 86
Figure 64 Setting the Date and Time ......................................................................... 87
Figure 65 Adding or Changing the Administrator's Password ................................... 89
Figure 66 Changing the Viewer Password or IP Based Authentication ...................... 90
Figure 67 Firmware Upgrade ..................................................................................... 93
Figure 68 Maintenance Options................................................................................ 94
Figure 69 Configuring the Serial Port Feature ........................................................... 96
Figure 70 Customizing Web Content ....................................................................... 97
Figure 71 Remote Support Configuration ................................................................. 99
Figure 72 Configuring the Disk Maintenance Schedule ........................................... 102
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VGA Grid User Guide
List of Figures
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.
FCC & CE Compliance Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
(1) This device may not cause harmful interference
(2) This device must accept any interference received, including interference that may
cause undesired operation.
Marking by the symbol
indicates compliance of this device with EMC directive of
the European Community and meets or exceeds the following technical standard.
EN 55022 - Limits and Methods of Measurement of Radio Interference Characteristics
of Information Technology Equipment.
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VGA Grid User Guide
List of Figures
Other Jurisdictional Issues
Epiphan makes no representation that its products or information in this document or
its web site is appropriate or available for use in your jurisdiction. Those who choose
to access the Epiphan web site or use Epiphan products do so on their own initiative
and are responsible for compliance with local laws, if and to the extent local laws are
applicable.
Submissions to Epiphan and Affiliated Servers
Any information, including but not limited to remarks, suggestions, ideas, graphics, or
other submissions, communicated to Epiphan through their Epiphan web site is the
exclusive property of Epiphan. Epiphan is entitled to use any information submitted for
any purpose, without restriction (except as stated in Epiphan's Privacy Statement) or
compensation to the person sending the submission. The user acknowledges the
originality of any submission communicated to Epiphan and accepts responsibility for
its accuracy, appropriateness, and legality.
Third Parties and Links to Third-Party Web Sites
Mention of non-Epiphan Systems Inc. products or services on their website, or this
document site is for informational purposes and does not constitute an endorsement
or recommendation.
This document may contain links to non-Epiphan web sites. These links are provided
to you as a convenience, and Epiphan is not responsible for the content of any linked
web site. Any outside web site accessed from the Epiphan web site is independent
from Epiphan, and Epiphan has no control over the content of that web site. In
addition, a link to any non-Epiphan web site does not imply that Epiphan endorses or
accepts any responsibility for the content or use of such a web site.
In no event shall any reference to any third party or third party product or service be
construed as an approval or endorsement by Epiphan of that third party or of any
118
VGA Grid User Guide
List of Figures
product or service provided by a third party.
Miscellaneous
It is the user's responsibility to ascertain whether any information downloaded from the
Epiphan web site or other websites is free of viruses, worms, trojan horses, or other
items of a potentially destructive nature.
Enforcement of Terms and Conditions
These Terms and Conditions for use of this document and the associated Epiphan
Product are governed and interpreted pursuant to the laws of the province of Ontario,
Canada, notwithstanding any principles of conflicts of law.
All disputes arising out of or relating to these Terms and Conditions shall be finally
resolved by arbitration conducted in the English language in Ottawa, Ontario, Canada
under the commercial arbitration rules of the Canada. The parties shall appoint as sole
arbitrator a retired judge who presided in the province of Ontario. The parties shall
bear equally the cost of the arbitration (except that the prevailing party shall be entitled
to an award of reasonable attorneys' fees incurred in connection with the arbitration in
such an amount as may be determined by the arbitrator). All decisions of the arbitrator
shall be final and binding on both parties and enforceable in any court of competent
jurisdiction. Notwithstanding this, application may be made to any court for a judicial
acceptance of the award or order of enforcement. Notwithstanding the foregoing,
Epiphan shall be entitled to seek injunctive relief, security, or other equitable remedies
from any court of competent jurisdiction.
If any part of these terms is unlawful, void, or unenforceable, that part will be deemed
severable and will not affect the validity and enforceability of the remaining provisions.
Epiphan may, at its sole discretion and without notice, revise these terms at any time
by updating this posting.
Copyright © 2012 Epiphan Systems Inc.
All Rights Reserved.
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Configuration Worksheet
23 Configuration Worksheet
Use this worksheet to keep necessary information about System installation, settings
etc.
Parameter (IP address, DNS
Value
server, SSID…)
Notes:
Copyright © 2012 Epiphan Systems Inc.
All Rights Reserved
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