Assigning a video source stream
In a system with multiple encoders, each decoder in that
system potentially has access to multiple video streams.
To assign a specific source stream to a decoder select
one of the available source streams from the video
source drop-down list (see the figure to the right).
Each source is listed by the device name and videoPort name, and has a suffix that
describes the connection type:
•
_rtp
— is an RTP unicast connection
•
_rtp(m)
— is an RTP multicast connection, if configured
•
_tcp
— is a TCP unicast connection
Selecting a source with an
_rtp
suffix causes the decoder to connect to an RTP stream
output by the selected source. The controller automatically connects the data stream to
that decoder. If the source IP address is currently set as a multicast group, a multicast
RTP stream is used, otherwise an additional unicast RTP stream is created. Each encoder
can support up to four unicast RTP output streams. Attempts to connect more than four
displays to a unicast source will fail. Multiple unicast RTP connections from a single encoder
can cause data errors if the total bandwidth becomes too high.
Selecting a source with a
_tcp
suffix causes the decoder to independently make a TCP
stream connection to the selected encoder. This does not require the encoder to have been
configured to transmit in multicast or unicast modes.
NOTE:
Use either _rtp unicast or multicast connections for streaming. TCP transport is
not recommended for streaming applications as it is a "guaranteed delivery" protocol,
which causes a build up in latency.
Complete the source selection by clicking
Update
.
Clicking the
video
,
audio
, or
data
bandwidth links displays a screen that provides access
to configuration settings and bandwidth data for the associated stream.
Assigning an audio source stream
To enable a program audio stream, check the
Audio
check box (
1
in the figure to the right) and click
Update
(see
5
). The program audio stream is
assigned from the same encoder selected for the video stream.
Once enabled, the read only audio source field populates with the name of the program
audio stream (
2
in the figure above right). If no name is displayed, either no audio source is
available or the check box selection was not implemented by clicking
Update
. The transport
for the program audio follows that selected for the video stream. For RTP streams, the
multicast option must be configured on the audio port. For further information, see
Assigning data source stream
To enable a data stream, check the
Data
check box
(
3
in the figure to the right) and click
Update
(see
,
5
). The data stream is assigned from the
same encoder selected for the video stream.
Once enabled, the read only data source field populates with the name of the data stream
(
4
in the figure above right). If no name is displayed, either no data source is available or
the check box selection was not implemented by clicking
Update
. The transport for the data
follows that selected for the video stream. For RTP streams, the multicast option must be
configured on the data port. For further information, see
page 65.
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3
4
4
1
1
2
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