Displaying Stream Content
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VG Series Modero Touch Panels
Displaying Stream Content
Overview
The current build of Modero firmware currently supports the display of both MPEG-2 and MPEG-4 media streams via
the TPDesign touch panel pages. These incoming media signals can utilize either a UDP or RTP Transport protocol. For
the purposes of these instructions, we will be setting up a Modero touch panel to display an incoming media stream sent
from a MAX Video Encoder. To fully utilize both MPEG-2 and MPEG-4 streaming functionality, you must be using the
latest Modero firmware.
MAX-CSE Media Encoder can currently stream A/V signals and direct them to IP-enabled devices capable of
interpreting and displaying the incoming MPEG data using either RTP or UDP Transport Protocols. These outgoing
signals can be displayed by a:
VG-Series Modero Touch Panel (supporting MPEG-2/MPEG-4 streams)
Computer running third-party multi-media player capable of supporting UDP/RTP streaming protocols.
At this time, we are recommending using the open-source VLC Media Player
®
(version 0.8 or higher).
Supported transport protocols include: UDP or RTP.
A protocol is a convention or standard that controls or enables the connection, communication, and data transfer between
two computing endpoints. In this case, between the MAX-CSE and the target IP-capable device (Modero).
UDP (User Datagram Protocol) is a connectionless protocol, such as TCP, that runs on top of IP networks.
Unlike TCP/IP, UDP/IP provides a direct way to send and receive datagrams over an IP network. It's
primarily used for broadcasting messages over a network. Data is sent as a Transport Stream by using only
the MPEG-2 codec.
In a UDP stream, only a Target (video) Port is needed since both the audio and video information are
transported together to the same port on the destination device.
RTP (Real-Time Transport Protocol) is an Internet protocol used for transmitting real-time data such as audio
and video as separate entities. Data is sent as an Elementary Stream which can use both the MPEG-2 and
MPEG-4 codecs.
In an RTP stream, both a Target (video) Port and Target Audio Port are required because the audio and
video are delivered to a destination as separate data elements. These elements are then directed to two
separate ports where they are then "synced-up" by target device/application.
IP Multicasting is a method of sending out large amounts of data. IP Multicast allows a server to broadcast a
message to many recipients simultaneously. Unlike traditional Internet communication, that requires separate
connections for each source-destination pair, IP Multicasting allows several recipients to share data from the
same source. This means that just one set of packets is transmitted to all the destinations.
An ideal method of sharing a single stream to several destinations.
One of the best uses for this method would be if an educator (or institution) wanted to stream (via either UDP or RTP) its
lecture series to a variety of students simultaneously around the world. Every student could connect and receive the
stream without having to wait their turn to view the content or see a severe drop in transmission quality.
IP Multicasting is supported under both the UPD and RTP communication protocols.
If using RTP, it is strongly recommended that this port number be an even
value. Using an odd numbered port value can cause the stream from a
MAX-CSE to not be properly recognized by the target Modero panel.
If using RTP, both the Target Port and Target Audio Port must be different.
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