Epiphan Technical
Documentation
©2013
Epiphan Systems Inc.
All Rights Reserved
June 2013
DVI Broadcaster DL™
User Guide
www.epiphan.com
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 info@epiphan.com.
Specifications
You can go to the Broadcasting page of the Epiphan website to get information
about the DVI Broadcaster DL.
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 and re-installing the Epiphan driver
software (where applicable), you continue to have outstanding issues, email a
problem report to support@epiphan.com. To help us solve the problem
efficiently, include the following info:
Your DVI Broadcaster DL serial number.
The behavior of your DVI Broadcaster DL 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 © 2013 Epiphan Systems Inc. All Rights Reserved.
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Copyright © 2013 Epiphan Systems Inc. All Rights Reserved.
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For additional terms and conditions, please refer to additional sections in this
document.
1 Table of Contents
1 Table of Contents ........................................................................................ 1
2 Overview ..................................................................................................... 4
2.1 Introduction............................................................................................ 4
3 Physical Attributes ...................................................................................... 5
3.1 System Hardware Features .................................................................... 5
3.2 Cables, Connectors and Adapters .......................................................... 8
3.2.1 3.5 mm Mini-jack ................................................................................... 8
3.2.2 DVI to DVI Cable ..................................................................................... 8
3.2.3 HDMI to DVI Adapter ........................................................................... 10
3.2.4 RJ-45 Male ............................................................................................ 10
3.2.5 Power over Ethernet (PoE) Injector ..................................................... 11
4 Getting Started .......................................................................................... 11
4.1 Supplying Power to the DVI Broadcaster DL ........................................ 11
4.2 Confirm Input Signal is Received .......................................................... 11
4.3 Network Connections ........................................................................... 12
4.4 Logging into the Web Admin Interface ................................................ 12
4.4.1 Access through Service Discovery ........................................................ 12
4.4.2 Epiphan’s Network Discovery Utility. ................................................... 13
4.4.3 Logging into the Web Admin Interface Using a Web Browser and the IP
Address of the DVI Broadcaster DL .................................................................... 13
4.5 Users Logging ....................................................................................... 14
4.5.1 The Administrator User ........................................................................ 14
4.5.2 The Operator User ............................................................................... 15
4.5.3 The Viewer User ................................................................................... 15
4.6 Web Admin Interface ........................................................................... 15
5 Video Formats and Standards .................................................................... 18
6 Signal Capture ........................................................................................... 19
6.1 Connecting Input Sources .................................................................... 19
6.1.1 Connecting DVI or HDMI Input Sources ............................................... 19
6.1.2 Connecting Audio Input Sources .......................................................... 19
6.2 Frame Grabber Adjustments ................................................................ 19
7 Stream Setup ............................................................................................. 23
7.1 Select Video Codec ............................................................................... 23
7.2 Audio Configuration ............................................................................. 26
7.3 Common Settings ................................................................................. 27
7.4 Select Audio Format ............................................................................. 28
8 Streaming .................................................................................................. 29
8.1 HTTP or RTSP Streaming ....................................................................... 31
8.2 Using a Content Distribution Network ................................................. 31
8.2.1 Using Epiphan.tv Portal for Streaming ................................................. 33
8.2.2 Using Epiphan’s Partners as CDN Providers For Streaming ................. 37
8.2.3 Setting up Multicast from Publish Stream ........................................... 38
8.3 UPnP ..................................................................................................... 41
8.4 Viewing Streaming Video ..................................................................... 44
8.4.1 Retrieving the Stream’s URL for Broadcasting ..................................... 44
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8.4.2 Using the Web Admin Interface’s Info Page ........................................ 44
8.4.3 Using the Web Admin Interface’s Live View Feature ........................... 45
8.5 Viewing a Broadcast with a Browser .................................................... 46
8.6 Viewing a Broadcast with a Media Player ............................................ 47
8.7 Compatibility Information .................................................................... 48
9 Recording .................................................................................................. 50
9.1 Selecting Recording File Format ........................................................... 50
9.2 Changing Time and Size Limits ............................................................. 50
9.3 Selecting File Prefix .............................................................................. 51
9.4 Starting and Stopping Recording .......................................................... 52
9.5 Viewing the Current Recording ............................................................ 52
9.6 Recording a Stream on iPad, iPhone and iTouch ................................. 53
9.7 Recorded Files ...................................................................................... 53
9.7.1 Downloading Recordings ..................................................................... 53
9.7.2 Deleting Files ........................................................................................ 54
9.7.3 Renaming Files ..................................................................................... 54
9.7.4 Viewing Completed Recording Files ..................................................... 55
9.8 File Transfer of Recorded Files ............................................................. 55
9.8.1 Copying Recorded Files to a USB Flash Drive ....................................... 55
9.9 Automatic File Upload .......................................................................... 57
9.9.1 Configuring Automatic File uploads ..................................................... 59
9.9.2 Configuring a CIFS Client ...................................................................... 60
9.9.3 Configuring an RSync Client ................................................................. 62
9.9.4 Configuring an FTP Client ..................................................................... 62
9.9.5 Testing the Automatic File Upload ....................................................... 63
9.10 FTP Server ............................................................................................. 64
10 Networking................................................................................................ 65
10.1 Connecting Directly to the System ....................................................... 65
10.1.1 Rescue Settings ................................................................................ 66
10.1.2 Connecting Directly to the DVI Broadcaster DL ............................... 66
10.2 Network Discovery of the DVI Broadcaster DL ..................................... 67
10.2.1 Epiphan’s Network Discovery Utility ............................................... 67
10.2.2 Epiphan’s EpiphanTouch App for iPad, iPhone, iTouch ................... 68
10.3 Setting IP Address ................................................................................. 69
10.3.1 Set the DVI Broadcaster DL to use a static IP address ..................... 70
10.3.2 Set the DVI Broadcaster DL to use a DHCP server ........................... 71
10.3.3 Performing Network Diagnostics ..................................................... 72
11 System Administration .............................................................................. 73
11.1 Setting the Date and Time .................................................................... 73
11.2 Configuring Administrator Access ........................................................ 76
11.2.1 To add or change the Administrator password ............................... 76
11.2.2 Deleting the Administrator password ............................................. 77
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11.3 Configuring Operator Access ................................................................ 77
11.3.1 To add or change the Operator password ....................................... 77
11.3.2 Delete the Operator Password ........................................................ 78
11.4 Configuring Viewer Access ................................................................... 78
11.4.1 To add or change the viewer password ........................................... 78
11.4.2 Configuring IP-based Authentication for Viewers ........................... 79
11.4.3 Delete the Viewer Password ........................................................... 80
11.5 Upgrading the System Firmware .......................................................... 81
11.5.1 Installing new firmware ................................................................... 81
11.6 Maintenance Controls .......................................................................... 82
11.6.1 Restoring the DVI Broadcaster DL Default Factory Configuration ... 83
11.6.2 Rebooting or Restarting DVI Broadcaster DL ................................... 83
11.6.3 Backing up Current Configuration ................................................... 83
11.6.4 Restoring Configuration from File ................................................... 84
11.6.5 Shutting down the DVI Broadcaster DL ........................................... 84
11.7 DVI Broadcaster DL System Information .............................................. 84
12 Serial Port Configuring ............................................................................... 85
13 Customizing Presentation and Web Content ............................................. 86
14 Stream Branding ........................................................................................ 87
15 Configuring Remote Support ..................................................................... 90
16 Disk Check ................................................................................................. 93
17 Disk Status Information ............................................................................. 94
18 Configuring using a Third-Party Application ............................................... 95
18.1 Serial Port Configuration ...................................................................... 95
18.2 RS-232 Commands ............................................................................... 95
18.3 Syntax for HTTP API Commands ........................................................... 97
18.4 Keys for HTTP API Commands .............................................................. 98
18.5 Device Info Keys ................................................................................... 98
18.6 Broadcasting Setup Keys ...................................................................... 98
18.7 ASF Encoder Keys ............................................................................... 100
18.8 RTP Unicast Keys ................................................................................ 100
18.9 Recorder Keys ..................................................................................... 100
18.10 Examples ............................................................................................ 101
19 Table of Figures ....................................................................................... 102
20 Configuration Worksheet ........................................................................ 107
Overview
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DVI Broadcaster DL User Guide
2 Overview
2.1 Introduction
The Epiphan DVI Broadcaster DL is an external device designed for streaming and/or
recording the video content from one connected source and optionally the audio
from one connected audio source. Its DVI In port can support any of the following
video sources:
- DVI (either single link or dual link)
- HDMI
- Other compatible sources with appropriate adapters and/or converters (e.g.
Thunderbolt, DisplayPort, and mini DisplayPort)
This compact external device captures DVI or HDMI video signals in resolutions up to
2048x2048 or2560x1600 for widescreen applications. The DVI Broadcaster DL then
streams the captured content in compatible formats allowing the broadcast to be
viewed with standard internet browsers and media players.
The DVI Broadcaster DL is an Ethernet network device that can be automatically
configured to connect to networks that support DHCP addressing or it can be
manually configured to use static IP addressing to connect to the network. It
supports a 100Mbps Ethernet connection. For more advanced users, the DVI
Broadcaster DL can also be configured prior to connecting it to the network. This is
done by connecting a workstation directly to the DVI Broadcaster DL using its
Ethernet port.
Upon connecting to an Ethernet network, the DVI Broadcaster DL can be configured
and operated through an easy to use web-based administration interface.
Once properly configured, the DVI Broadcaster DL device can broadcast the video
source and the optional audio source over a wired Ethernet cable connected to the
network.
Viewers are simply provided with a URL in order to watch the desired broadcast
stream. Additionally, the DVI Broadcaster DL allows content producers to also
record the broadcast to .AVI or .MOV formatted files.
The Epiphan DVI Broadcaster DL comes with a 4 GB internal solid-state memory for
recording broadcasts which provides buffering such that in the event the network is
experiencing slow transfer rates, no captured data will be lost. In addition to this
Physical Attributes
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DVI Broadcaster DL User Guide
built in flash storage, recorded video files can be archived to a network storage
device such as a FTP server or copied to an inserted USB flash drive.
The DVI Broadcaster DL can support streaming over HTTP, RTSP, peer-to-peer RTP
connection, multicast RTP and a Content Distribution Network (CDN) broadcast
network. The decision on how to stream a broadcast will depend on the answers to
the following questions as well as other design decisions. What is the number of
expected viewers? How are the viewers going to stream the broadcast? What are
the network capabilities on the broadcast side and on the viewer side? Should a
Content Distribution Network be used? For further details on broadcasting
strategies, please refer to Streaming.
3 Physical Attributes
3.1 System Hardware Features
The DVI Broadcaster DL device is a 202mmx105mmx35mm (7.95”x4.13”x1.38”) unit.
Figure 1 Rear View of the DVI Broadcaster DL
Below is a table summarizing the connectors and indicators found on the rear panel
of the DVI Broadcaster DL.
Table 1 Summary of the Rear Panel's connectors and Indicators
Number
Name
Description
1
USB
USB 2.0 port that also supports USB 1.1 and RS-232
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DVI Broadcaster DL User Guide
port functionality.
You are enabled to integrate the DVI Broadcaster DL
with other equipment featuring an RS-232 port and
control your device over the RS-232 connection. Please
refer to Serial Port Configuring.
2
RJ45 Ethernet
Primary RJ-45 Ethernet network port to connect the
DVI Broadcaster DL device to an Ethernet network. The
DVI Broadcaster DL device Ethernet port is autosensing.
The front panel is illustrated below.
Figure 2 Front View of the DVI Broadcaster DL
Below is a chart detailing the connectors found on the front panel.
Table 2 Summary of Connectors on the Front Panel
Number
Connector
Description
3
Factory Reset
Button
Resets the DVI Broadcaster DL back to its factory
configuration defaults. In order to avoid accidentally
resetting the device, a special sequence is required:
disconnect power to the device,
press and hold the Reset button as you
reconnect the power.
the blue LED lights up.
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DVI Broadcaster DL User Guide
keep pressing the Reset button until the blue
LED turns off and the green LED lights up.
release the Reset button.
4
Record
Stop/Start
Toggle
Record on/off: toggles the recording on/off status.
5
LEDs
Red LED: During operation the red LED blinks each time
the DVI Broadcaster DL captures an image. The red LED
can be used as an indicator that the DVI Broadcaster DL
is capturing images. When the input signal(s) stop(s)
sending images, the red LED stops blinking.
Green and blue LEDs: When the DVI Broadcaster DL
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 DVI Broadcaster DL
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.
Blue LED: The blue LED blinks to indicate that the DVI
Broadcaster DL is recording received images. If the files
are not being recorded, the blue LED remains off.
Note: Sometimes it may take more than 20 minutes to
power up the device. During this time the blue LED is
on and the green LED is blinking. It means that the
Check disk function started automatically when the
device powered up.
6
USB port
This is an additional USB expansion port as described
above.
7
DVI In
Connect the incoming video source to the DVI
Broadcaster DL. For DVI video input, connect using the
included DVI cable. To connect unencrypted HDMI
video input, use the included HDMI to DVI adapter. For
other types of video sources use the appropriate
adapters and connectors to allow the video source to
be connected to the DVI input port. These adapter and
connectors are not included with the DVI Broadcaster
DL. 8 Audio In
Connect a microphone to broadcast an audio stream.
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DVI Broadcaster DL User Guide
3.2 Cables, Connectors and Adapters
The DVI Broadcaster DL 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 DVI
Broadcaster DL.
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
DVI Broadcaster DL to its Audio In port.
Figure 3 3.5mm Mini-jack
3.2.2 DVI to DVI Cable
Connects a DVI source to the DVI Broadcaster DL’s DVI port. This cable is included
with the DVI Broadcaster DL.
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DVI Broadcaster DL User Guide
Figure 4 DVI to DVI Cable
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DVI Broadcaster DL User Guide
3.2.3 HDMI to DVI Adapter
Connects an HDMI source to either of the DVI Broadcaster DL’s DVI ports. This
adapter is included with the DVI Broadcaster DL.
Figure 5 HDMI to DVI Adapter
3.2.4 RJ-45 Male
Connects the DVI Broadcaster DL to an Ethernet network.
Figure 6 RJ-45 Male Cable
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DVI Broadcaster DL User Guide
3.2.5 Power over Ethernet (PoE) Injector
The DVI Broadcaster DL incorporates a Power over Ethernet (PoE) technology. PoE
delivers both data and electrical power to an Ethernet enabled device using a single
Ethernet cable. This eliminates the need for the DVI Broadcaster DL to be situated
close to a power outlet. This allows more freedom in its placement.
PoE injectors supply or inject direct current (DC) power through network cables to
power network devices.
4 Getting Started
4.1 Supplying Power to the DVI Broadcaster DL
To provide power to the DVI Broadcaster DL, plug the provided PoE adapter into a
10/100Base-T Ethernet network using an Ethernet cable. This network must be
running the TCP/IP protocol.
If your network does not provide Power over Ethernet, connect the DVI Broadcaster
DL to an AC power outlet with the PoE adapter/injector connected to an Ethernet
cable and plugged into the DVI Broadcaster DL’s RJ45 Ethernet port.
Regardless of the power source once connected, the DVI Broadcaster DL now
powers up. Its power and activity LEDs will now light up following their start up
sequence.
4.2 Confirm Input Signal is Received
Confirming that the input signal is being received by the DVI Broadcaster DL can be
done once the DVI Broadcaster DL has been powered on and the input source has
been started.
First, check that the DVI Broadcaster DL’s red LED is blinking. A blinking LED
indicates that the DVI Broadcaster DL is capturing images. If the red LED does not
start flashing, check the input source to ensure that it is transmitting a signal.
Additionally, check that a cable from the input source to the DVI Broadcaster DL is
connected correctly.
Note that you can check whether the DVI Broadcaster DL is transmitting an audio
signal only in a live stream or when you open a recorded file.
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DVI Broadcaster DL User Guide
4.3 Network Connections
Please to refer to the Networking chapter for the instructions on direct DVI
Broadcaster DL’s connection to the Ethernet, discovering the DVI Broadcaster DL on
the network, IP address settings and other details.
4.4 Logging into the Web Admin Interface
The Web admin Interface is accessible by logging into it using one of the following
methods.
4.4.1 Access through Service Discovery
The multicast Domain Name System (mDNS) is a zero configuration host name
resolution service. It allows a user to do without an IP address when performing
access to the device. Bonjour software installed on a Windows or Mac machine
supports mDNS.
To access the device through service discovery, the following conditions should be
met depending on your OS:
Microsoft Windows – you must install Bonjour Print Services as explained below.
To install Bonjour Print Services on a Windows machine:
1. Use the following URL - http://support.apple.com/kb/DL999
2. Click Download.
3. Follow the system prompts to download the application on your computer.
MacOS X – Bonjour software which is used for service discovery comes built-in with
Mac OS. Therefore DVI Broadcaster DL device can be accessed without any
additional installations.
Linux – the Avahi implementation used for service discovery is shipped with most
Linux distributions. Therefore most probably your device will be accessed without
any additional installations. However you are recommended to address your
administrator for the details first.
The simplest way to access Web Admin interface of your DVI Broadcaster DL in the
local network is to type the following string in the address bar of your web browser:
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DVI Broadcaster DL User Guide
<serial>.local
where <serial> is the serial number of your DVI Broadcaster DL.
For example: http://92033.local
4.4.2 Epiphan’s Network Discovery Utility.
The Epiphan Network Discovery Utility can be installed and executed from a
workstation running Windows XP, Vista or Windows 7. Follow the following steps to
access the Web admin Interface through this utility:
1. Start the Epiphan Network Discovery Utility tool.
2. Click Search to find all of the Epiphan devices on the network and select the
desired DVI Broadcaster DL.
3. Click Web config.
4. A web browser starts and you are prompted for the DVI Broadcaster DL’s
administrator user name and password.
5. 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.
Alternatively the Network Discovery Utility can be used to retrieve the DVI
Broadcaster DL’s IP address and access to the Web admin Interface will be done
using a browser.
4.4.3 Logging into the Web Admin Interface Using a Web Browser and the
IP Address of the DVI Broadcaster DL
The web browser can be running on Windows, Mac OS X, Linux or any other
operating system.
1. Start a web browser on any workstation connected to the same network as
the DVI Broadcaster DL.
2. Browse to the DVI Broadcaster DL.
http://<ip address of the DVI Broadcaster DL>/admin
The IP address of the DVI Broadcaster DL can be obtained using any of the
following methods:
a. The Epiphan Network Utility
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DVI Broadcaster DL User Guide
b. The EpiphanTouch app
c. From the network administrator
d. Using the Factory Default static IP address. Only if the steps in
section, Connecting Directly to the DVI Broadcaster DL, are
followed
3. Log in as the DVI Broadcaster DL’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>
The Web admin Interface opens.
4.5 Users Logging
The DVI Broadcaster DL comes with three pre-configured users which can log in the
control interface. The first is the administrator user, the user name is admin. The
second is the operator user, the user name is operator. The third is the viewer user,
the user name is viewer. Each can be assigned a password but their user names
cannot be altered. It is not possible to create new user names.
Important: When you install firmware for the first time after purchasing the device,
no default passwords are set.
4.5.1 The Administrator User
The administrator user is granted rights to log into the DVI Broadcaster DL and
perform any of the following functions:
1. Perform configuration changes to the DVI Broadcaster DL.
2. Manage the current broadcast. This can include the starting or stopping of the
recording of the broadcast.
3. Manage previously recorded broadcasts. Including the archiving of recordings.
4. System monitoring. This would involve retrieving any system statuses and
retrieving the solid state memory status.
5. Upgrading the System Firmware from Epiphan Support. New firmware is
released to fix known problems or to add new features.
6. Perform network diagnostics.
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DVI Broadcaster DL User Guide
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.
4.5.2 The Operator User
The operator user is granted rights to log in to manage broadcast recordings,
configure audio and frame grabber settings, access the recorded files and perform
network diagnostics.
As a default, the operator user does not come with a factory configured password.
Configuring an operator password is optional.
4.5.3 The Viewer User
The viewer user is granted rights to log in to view broadcasts and does not have any
administrative ability.
As a default, the viewer user does not come with a factory configured password.
Configuring a viewer password is optional.
4.6 Web Admin Interface
In this section you can see a diagram showing the Web admin Interface’s main
menu. It is located on the left side of the screen.
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DVI Broadcaster DL User Guide
Figure 7 Web Admin Interface's Main Menu
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DVI Broadcaster DL User Guide
The following table briefly describes each of the options on the Web admin
Interface’s main menu.
Table 3 Web admin Interface’s Main Menu Options
Stream Setup
Change the stream settings.
Publish Stream
Sends the stream to a remote streaming server such as a Content
Distribution Network service provider (CDN) or Epiphan.tv portal
Stream
Branding
Customize the recording and broadcast: specify the information
that is displayed to a viewer and select the logo and “No signal”
image.
UPnP
Access recorded files and streams on the local network using a
media player via the UPnP protocols.
Frame Grabber
Make frame grabber image adjustments.
Audio
Change and adjust the audio input.
Automatic File
Upload
Set up automatic files uploading from the DVI Broadcaster DL
device to a network storage device.
FTP Server
Configure FTP access settings to connect to the DVI Broadcaster
DL internal solid state memory using an FTP client and the
administrator, operator or viewer account.
Network
Change the DVI Broadcaster DL network configuration.
Date and Time
Change DVI Broadcaster DL date and time settings.
Access
passwords
Change the admin, viewer and operator account password.
Serial Port
Integrate the DVI Broadcaster DL with other equipment featuring
an RS-232 port and control your device over the RS-232
connection.
Branding
Customize design of the browser where the broadcast is viewed.
Maintenance
Reboot or shut down the DVI Broadcaster DL device. Restore
factory configuration.
Disk Check
Set a Maintenance Schedule for checking the DVI Broadcaster DL
solid-state memory for errors.
Firmware
Upgrade
Upgrade the DVI Broadcaster DL firmware.
Info
Display information about the DVI Broadcaster DL Firmware and
hardware, broadcasting and recording status, available streams,
input video signal.
Disk Status
View the total solid state memory in GB, the used and available
hard solid state memory in GB, and also the amount used as a
percentage of the total solid state memory.
Video Formats and Standards
18
DVI Broadcaster DL User Guide
5 Video Formats and Standards
The DVI Broadcaster DL supports broadcasting 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 DVI Broadcaster DL, video codec for streaming is selected by an
administrator. After this action the system creates a list of available streaming
formats for this codec. Users can view the broadcast in any available format
depending on their preference. Moreover, multiple users can view the same
broadcast in different formats. The list of formats available for the selected
combination of video and audio codecs displays on the Info page of the Web admin
interface.
The DVI Broadcaster DL can stream video using Flash (H.264), ASF (MPEG4 or H.264
codecs), Motion JPEG, RTSP (MPEG4 or H.264 codecs) or MPEG-TS (H.264). 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 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.
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DVI Broadcaster DL User Guide
The MPEG Transport Stream (MPEG-TS) type supports many software and hardware
media players. This stream type conforms to H.264 standards.
Note: Media Player, browser, viewer capabilities and compatibilities are subject to
change.
6 Signal Capture
6.1 Connecting Input Sources
It is recommended that prior to powering up the DVI Broadcaster DL, the input
source is connected first. This input source can be a DVI or HDMI source. Any one of
these sources would be connected to the DVI Broadcaster DL using its DVI input
port. Audio input will be connected to the DVI Broadcaster DL Audio in port.
6.1.1 Connecting DVI or HDMI Input Sources
All DVI or HDMI input sources are connected to the DVI Broadcaster DL using the
DVI 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 cable.
HDMI input sources are connected using the HDMI to DVI adapter. These sources
should only be non-copy protected content.
Note that an HDMI signal containing audio will not be captured.
6.1.2 Connecting Audio Input Sources
All audio sources are connected to the DVI Broadcaster DL using the audio input
port.
6.2 Frame Grabber Adjustments
A frame grabber is an electronic device that captures individual still frames from a
digital video stream and transmits them in a digital form. An Epiphan frame grabber
is a subsystem component in the DVI Broadcaster DL and can be configured
separately. From the Web admin interface, select Frame Grabber from the main
menu to configure Frame Grabber adjustments.
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DVI Broadcaster DL User Guide
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.
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.
Signal Capture
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DVI Broadcaster DL User Guide
Figure 8 Frame Grabber Adjustments
Signal Capture
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DVI Broadcaster DL User Guide
The table below discusses all options found on the Frame Grabber Adjustment page.
Table 4 Frame Grabber Adjustment Options
Interval between
VGA signal
autoadjustments,
sec
Change the interval between automatic adjustments if you
want them to occur more or less often. To suspend
automatic adjustments, enter 0.
Vertical shift
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.
Horizontal shift
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.
Phase
Not used.
PLL adjustment
Not used.
Offset
Not used.
Gain
Not used.
Aspect ratio
Not used.
Select EDID file
Browse to the Extended display identification data (EDID) file
to be uploaded.
EDID is the information about display’s supported
resolutions, timings, formats, chromacity, and other media
parameters. This information can be used by a signal source
for adaptation to the characteristics of a device accepting the
signal.
Use this URL to upload EDID files:
http://www.epiphan.com/downloads/edid/
Stream Setup
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DVI Broadcaster DL User Guide
7 Stream Setup
When you log in to the control interface, in the Stream Setup section you can
configure the video codec and specify streaming settings for the input signal.
7.1 Select Video Codec
Before starting the video recording or broadcasting process, you have to specify the
video codec for encoding. It can be selected in the Stream Setup section of the
interface.
To select the video codec:
1. Click the Stream Setup option.
2. Click an arrow in the Codec field.
3. Select the required codec from the drop-down list. The following values are
available for selection:
H.264
MPEG4
Motion JPEG
After you have specified required video and audio codecs (as described in this
section and in the Select Audio Format section), click the Info menu option of the
Web Admin interface to see available broadcasting formats for your settings and
obtain the IP addresses for the broadcast (refer to Retrieving the Stream’s URL for
Broadcasting).
Figure 9 Stream Settings
Stream Setup
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DVI Broadcaster DL User Guide
Table 5 Stream Setup settings
Video encoding preset
Defines how a video stream should be encoded:
- at a high quality
- at a high speed
- according to the default system settings.
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, e.g. videoconferencing
2. Main: for standard-definition broadcasts
3. High: for broadcast and disc storage
applications
This parameter can be set for the H.264 codec only.
Enhanced compatibility
mode (h.264 slicing for
RTP)
This parameter provides operating stability if the
transmitted video/audio stream is not quite supported
by the viewer’s equipment.
When this parameter is activated, each picture is
subdivided into one or more slices. The slice is given
increased importance in H.264 as the basic spatial
segment that is independent from its neighbours. Thus,
errors or missing data from one slice cannot propagate
to any other slice within the picture.
The following streaming settings can be made:
Figure 10 Streaming Settings
Stream Setup
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DVI Broadcaster DL User Guide
Below is a table showing the streaming settings that are configurable.
Table 6 Streaming settings
Show time label
If the video needs to be time labeled or timestamped, this
parameter allows how the date and time will be displayed.
Click on Show substitutions and use the Format
substitutions commands to select the desired date and
time format. The commands are described in a table
below.
If time labeling is not required, leave this field blank.
Frame size
Select a frame size from the drop down list 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 frame resolution can help to
reduce bandwidth usage.
Key frame interval
Controls the number of frames. Key frames define the
starting and ending points of any smooth transition.
Limit frame rate
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 DVI Broadcaster DL can capture
images. Reducing the frame rate reduces the number of
images being captured by the device. Decreasing the
frame rate can help to reduce bandwidth usage.
Bitrate
Enter a DVI signal bitrate. A lower bitrate produces lower
quality videos and smaller file sizes. A higher bitrate
produces better quality videos and larger file sizes.
Quality parameter (for
MJPEG only)
This parameter is similar to Bitrate. Use bigger values to
improve the quality of the broadcast.
Table 7 Format Substitutions Commands
Command
Value
Example (27/09/2012
10:50:45.378)
date
%F
2012-09-27
year
%G
2012
month (as 01)
%m
09
month (as
%b
Sep
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DVI Broadcaster DL User Guide
Jan)
month (as
January)
%B
September
day of month
%d
27
weekday (as
Thu)
%a
Thu
weekday (as
Thursday)
%A
Thursday
time
%T
10:50:45
hour
%k
10
minute
%M
50
second
%S
45
ms
%#m
378
7.2 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.
Figure 11 Audio Configurable Options
Table 8 Audio Configurable Options
Input Source
Select the input source
Line
Mic (pre-amplified signal)
Input Amplifier Volume
Reduce the input volume if the line in signal volume is
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