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Chapter 4 –
Conference Profiles
4-12
2 When necessary, click the button besides "Detailed Configuration" to
configure the video parameters used for the conference. Select a protocol
parameter from the “Protocol” options:
― Auto: This option is selected by default. When a conference is held,
the system will, according to the capability of the participant's
endpoint currently joined, automatically select the optimal video
parameter supported by all the participants, and automatically adjust
it when a new participant joins or an existing participant leaves the
conference.
― H.261/H.263/H.264/H.264-HP (RMX 500 Rev B and RMX 1000 Rev
C): select this option to activate the settings for the Format option.
When a conference is held, all the participants' endpoints join the
conference using the parameter capability set here. The endpoint that
does not support the configured parameter can access the conference
with audio only. For RMX 500 Rev B and RMX 1000 Rev C, if you
choose to use the H.264-HP protocol, less bandwidth is required for a
video resolution. The minimum bandwidth requirements for various
resolutions are as follows:
1080p: 1024 Kbps
1080p: 1024 Kbps
4CIF: 128 Kbps
The number of endpoint connections supported by the system in the actual conference
depends on the number of resources purchased by the user.
Defining Content Video Quality
When the endpoint sends dual streams, the RMX system applies different
coding and decoding policies to the primary channel of people video and
second channel of content video. The following table provides the video
parameters for setting the second channel of content image.
Video Quality Parameters – Second-channel Video Dual-stream Definition
Parameter
Description
Dual stream
settings
Set the coding/decoding protocol which can be best used for the
dual-stream video. You can select the H.264 or H.263
coding/decoding algorithm based on the endpoint capability and
network bandwidth. When None is selected, it indicates dual
streams are not enabled.
For RMX 500 Rev A and RMX 1000 Rev A, dual stream contents
are coded/decoded by default. If you select the Switching option,
only dual streams are switched.
For RMX 500 Rev B and RMX 1000 Rev C, only dual streams
are switched.
Note:
If this setting is H.264, when an endpoint that supports
only H.263 joins in the conference, an H.264 endpoint will send
dual streams using the H.263 protocol.
H.239 Setting
The H.239 protocol is used to send dual streams. You can select
three kinds of video quality as needed:
• Graphics: For the standard video display