Qvidium QVENC4K 4K/UHD HEVC/AVC User manual

QVidium®TECHNOLOGIES, INC.
QVENC4K™ 4K/UHD HEVC/AVC
Streaming Internet Video Encoder
For Live Internet Streaming and Professional Video
Applications
Model: #QVENC4K
User Manual v.2
September 19, 2023
Application Firmware Version 34.59.14
2023 QVidium®Technologies, Inc.
San Diego, CA 92130
Phone [phone] • e-mail: [e-mail]

User Manual v.2 QVidium®QVENC4K™ UHD/HEVC Video Encoder
Copyright 2023 QVidium®Technologies, Inc. Page 2 of 43
Table of Contents
1Introduction.............................................................................................................3
1.1 Overview ..........................................................................................................3
1.2 Accessing the Network Interface ..............................................................4
1.3 Dashboard and System Menu ....................................................................4
1.4 Network Setup ................................................................................................6
1.5 Reconfiguring and Resetting Network Settings ....................................8
1.6 Ping and Traceroute .....................................................................................8
1.7 Passwords and Security ............................................................................11
1.8 Updating ........................................................................................................11
1.9 System View –QVENC4K ..........................................................................12
1.10 IMPORTANT SAFETY INFORMATION –PLEASE READ ....................14
2 Encoder Configuration .......................................................................................15
2.1 Quickstart Encoder Configuration ..........................................................16
2.2 Detailed Encoder Configuration ..............................................................18
2.3 QVidium ARQ Video Transport & Error Correction ............................24
2.4 Additional Protocol-Specific Parameters ..............................................26
3 Encoder Operation ..............................................................................................27
3.1 Starting and Stopping the Encoder .......................................................27
4 CodecManager & System Reset......................................................................28
4.1 CodecManager.............................................................................................28
4.2 Resetting the Network Parameters........................................................28
4.3 Resetting the System Configuration .....................................................28
4.4 Resetting the Password............................................................................29
4.5 Command-Line Interface...........................................................................29
5 Built-in Firewall ....................................................................................................30
6 Troubleshooting & Support ..............................................................................31
6.1 Troubleshooting –Common Problems .......................................................31
6.2 Support ............................................................................................................34
7 Appendices ...........................................................................................................35
7.1 Appendix A: Encoder Configuration Parameters ......................................35
7.2 Appendix B: Video Encoder™ Bitrate Limits .............................................37
7.3 Appendix C: Hints for Minimizing Bitrates ..................................................38
7.4 Appendix D: Technical Specifications ........................................................39
7.5 Appendix E: Product Warranty Terms and Conditions ............................42
7.6 Appendix F: FCC Notice ..............................................................................43
QVidium provides the capability to inter-operate with most Content Delivery Networks (CDNs). As
a result, the QVENC4K can send to a CDN in one of four common protocols, SRT, RIST,
RTMP/RTMPS and HLS. These capabilities are described in Chapter 2. This feature allows the
QVENC4K to interoperate with large content gathering points such as Facebook and YouTube.

User Manual v.2 QVidium®QVENC4K™ UHD/HEVC Video Encoder
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1 Introduction
Congratulations on purchasing your new QVidium
®
Live Internet Streaming video encoder.
QVidium
®
QVENC4K UHD/4K video encoder –Front View (top), Rear View (bottom)
1.1 Overview
QVidium’s QVENC4K™streaming video encoder is a high performance, high resolution video over
IP networking device capable of encoding broadcast quality video at resolutions up to 3840x2160
and at frame rates up to 60 frames per second. Utilizing a high-end, state-of-the-art multi-core
CPU with a specialized on-chip hardware video encoding core, the QVENC4K can process video
in real-time using HEVC/H.265 or MPEG4-AVC/H.264 compression. The QVENC4K can transmit
4:2:0, 8-bit, UHD/4K video. Along with the video, the QVENC4K can process up to 8 channels of
audio (4 stereo pairs) with a selection of common audio encoding formats, including surround
sound 7.1..
QVidium was the first company to invent a negative-acknowledgement feedback-based video
transport and error correction mechanism, called QVidium ARQ (Automatic Retransmission
request), for which it holds 2 U.S. patents and an Emmy© Award. QVidium ARQ enables the
transport of broadcast quality video over nearly any Internet and wireless network, provided that it
has sufficient bandwidth to carry the stream.
Like all other QVidium video encoder, decoder, gateway and server products, the QVENC4K
employs QVidium’s patented ARQ. In addition, the QVENC4K also offers other video transport and
error correction with protocols such as Zixi, SRT, RIST for live video error correction and transport,
and RTMP/RTMPS,and HLS for compatibility with Content Delivery Networks (CDNs) such as
Facebook, YouTube, and Ustream.
The following sections and chapters explain how to configure and operate the QVENC4K using
screen snapshots and explanations of the various settings, and provide examples of the output you
should expect.

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1.2 Accessing the Network Interface
To gain access to the control and status interface for the QVENC4K, you must first log in from a
web browser by entering the IP address assigned to your QVENC4K. By default, the IP address is
automatically configured via DHCP. If you do not know what IP address was assigned to your unit,
you can use our CodecManager application, described in Section 1.4, Network Setup.
Log in using the username, “admin” and the password also "admin".. For more detail on logging in,
please see Section 1.6, Password and Security. If you have trouble logging in, please try clicking
on the browser’s refresh control, usually shown as a counterclockwise circular arrow.
1.3 Dashboard and System Menu
The first menu item after logging in is the Dashboard, which shows relevant parameters for the
current state of the system, such as the current encoding network statistics, system uptime,
memory usage, and send and receive stats for the two network interfaces. This is shown below, in
Figure 1.
Figure 1. Dashboard and System Menu.
In Figure 1, we have expanded he System menu to show the available system settings: Name,
Password, Time, Upgrade, Processes, Shutdown, and Reboot. You can set the system name,
to help distinguish one QVENC4K from another, and change the password from the default (Serial
Number) to one of your own choosing,
You can update the firmware to the latest version, provided that your QVENC4K is connected to
the Internet, by clicking System/Upgrade. This will compare the various firmware modules on your

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QVENC4K with the latest version on our server and download and install the modules that are not
up to date. For more details about updating your firmware, please see Section 1.8, Updating.
Reboot will restart the entire system and Shutdown will turn off the power to the system. After
shutting down the system, you will need to push the power button on the front of the unit or power-
cycle the power to the system to regain access to the system.

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1.4 Network Setup
The QVENC4K™includes two built-in gigabit Ethernet ports, labeled GigE 1 and GigE 2. The
default factory setting enables DHCP on both built-in GigE 1 and GigE 2 ports to automatically set
its IP address and network configuration. In addition, you can add additional Ethernet ports by
inserting an Ethernet to USB dongle into the USB3-Type A port that is next to the two built-in
Ethernet ports.
QVidium provides software called CodecManager that you can download from the Support page
at http://www.qvidium.com to configure and determine the IP address of the Ethernet port of your
QVENC4K. Alternatively, you can use the QVENC4K’s built-in Web interface to change the
network settings –assuming that you know the address assigned to your QVENC4K by the DHCP
server.
To configure the network settings of your QVENC4K using CodecManager, follow these steps:
1) Download and install the QVidium CodecManager application from the Support page at
http://www.qvidium.com. Before running CodecManager, please have your QVENC4K
connected to an Ethernet switch via a Cat5 or equivalent cable. Then have your PC or
other network device connected to another port on that same switch and disable any
wireless or other wireline network ports on your PC.
2) Make certain that your QVENC4K is powered on and operational. It takes about 20
seconds for it to completely boot up into its operational state.
3) Run the CodecManager application. You should see the IP address of the QVENC4K and
any other QVidium devices connected to that switch. To avoid confusion, we recommend
disconnecting or powering off any other QVidium devices or products that may be
connected to that Ethernet switch.
4) Click once on the entry for the QVENC4K that you want to configure and click on Edit to
configure the IP address. For setting a static IP address, please be certain to disable
DHCP mode. After clicking OK, you should see the IP address for the QVENC4K entry
change to the new address.
5) If a static IP address is desired, you can enter any valid IP address, Gateway, and
Netmask. However, please be aware that if you want to connect to, and interact with the
web interface of the QVENC4K, your PC must be on the same IP subnet that you had
assigned to the QVENC4K.
6) Assuming that you set up a valid IP address in Step 5, then you can then Double-click on
the entry for the QVENC4K to pull up a browser and enter the Graphical User Interface
(GUI) to interact with the QVENC4K.
TROUBLESHOOTING: If your QVENC4K™does not show up in CodecManager or if you have a
Linux or MAC or other non-Windows PC, you can install Java and try running the Java version of
CodecManager. This version will try all your PC’s network interfaces to find the QVENC4K. You
can also log into your DHCP server to see what IP address was assigned to your QVENC4K.
NOTE: The QVENC4K™requires user authentication to enter the web interface. The factory
preset username is “admin” and the password is also preset to "admin". We strongly
recommend that you change this to keep your device secure.
To reconfigure the network interface using a Web browser, follow these steps:
1) Determine the IP address of the QVENC4K™from your DHCP server
2) Make certain that the IP address of your PC is on the same subnet as the QVENC4K
3) Enter the IP address of the QVENC4K into a web browser on your PC
4) Click on “Configure” under the “Network” menu on the left.
You should see a web page similar to the following network configuration web page, Figure 2:

User Manual v.2 QVidium®QVENC4K™ UHD/HEVC Video Encoder
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Figure 2. Network configuration example for GigE 2
3) Change settings as desired and click “Save”.
4) If you change the IP address, you will need to change the URL in the web browser to point to
the new address after clicking on “Save”.
The Network/Configure page allows you to modify the static IP address parameters and DNS
server settings, or to have these settings automatically configured through DHCP. A Hostname
page allows you to specify the host name for use in conjunction with a DNS server to assign a
predetermined IP address.

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1.5 Reconfiguring and Resetting Network Settings
In case you are not able to connect to the QVENC4K™through the network port(s), we have
provided 2 different mechanisms for resetting the IP addresses and network settings: through
CodecManager and through the USB console serial port. Any one of these 2 methods we
describe in this section will allow you to recover in case the IP address was changed or set to
DHCP and you do not know its current value.
CodecManager: As previously described in the last section, if you have a Windows PC or a Mac
running a PC emulator, you can download and run the QVidium application, CodecManager™, to
change or set the IP address for the built-in Ethernet port. You can download CodecManager from
the Support page at http://www.qvidium.com. If you have more than one network adapter on your
PC, you may need to select the proper Network Interface from the pull-down control in the lower
left corner of the CodecManager application. Also, because CodecManager relies on low-level
Ethernet-level multicasts, we recommend having both the QVENC4K and your PC connected
through a switch, and not via a direct Ethernet cable. If you do not see the QVENC4K on
CodecManager, even after clicking on the Discover button, then you should try connecting to the
other LAN port on the QVENC4K. If you still do not see the QVENC4K, then we suggest either
resetting the network interface using the USB Console Port method, below, or via the USB serial
port.
USB Console Port: Alternatively, you can connect a USB cable to the Console USB port to log
into the Linux shell and change the IP address or other settings. To reset the IP settings to their
factory defaults, connect a PC running a terminal emulator, such we Hyperterm or TeraTerm. You
should then see a new COM port on your PC. Set the Baud rate to 1500000 and try connecting the
terminal emulator to the new USB port. The other serial port settings should be set to 8-N-1, no
flow control. Upon power-on, you should see a stream of characters as the system is booting,
ending with the login prompt. Login as user “qvidium” with the barcode serial number as the
password,then hit Enter. From this prompt, type resetnetwork followed by hitting the Enter key
(<CR>, carriage return) to reset the network settings to use DHCP. You can also type ifconfig
eth0 (and <CR>) to see the current IP address.
If you have experience with network monitoring software, such as Wireshark (www.wireshark.org),
please note that upon power-up, the Encoder will emit a gratuitous ARP packet from which you
can determine its IP address by looking for the ARP packets that the QVENC4K generates and
analyzing its contents.
1.6 Ping and Traceroute
Selecting Ping allows you to test network connectivity by sending ping packets to an address or
hostname you specify. However, to use a hostname in place of an IP address, you must have
configured at least one DNS server.
The following figure, Figure 3, shows the Network Ping configuration and output.

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Figure 3. Network Ping example for GigE 2. Top: Configuration; Bottom: Output

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Figure 4. Network Traceroute example for GigE 2. Top: Configuration; Bottom: Output
Likewise, you can use Traceroute (shown above in Figure 4) to ping every router along the route
from the QVENC4K to the IP or DNS address you specify. Traceroute is very helpful in locating
instances where an ISP might employ dynamic load balancing and other routing problems that can
affect the quality of the video transport. Dynamic Load Balancing occurs where an ISP might
specify an alternate route to send packets to balance the load across its network. This is fine for
web pages that use TCP and can tolerate random delays. However, this can cause video streams