Mixed Cp And Svc Conferencing; Rich Video Layout Display Options - Polycom 1500 Getting Started Manual

RealPresence Collaboration Server (RMX) 1500/1800/2000/4000 Getting Started Guide
The Polycom multipoint media server serves as an integrated media relay engine that provides media
streams for displaying conferences at low latency video experience in video conferences. For more details,
see Polycom® RealPresence Collaboration Server (RMX) 1500/1800/2000/4000 Administrator's
Guide,.SVC-based Conferencing.
SVC-based Video Resolutions
In the Scalable Video Codec (SVC)-based conference, each SVC-enabled endpoint transmits multiple bit
streams, to the Polycom® RealPresence® Collaboration Server. Simulcasting enables each endpoint to
transmit at different resolutions and frame rates such as 720p at 30fps, 15fps, and 7.5fps, 360p at 15fps and
7.5fps, and 180p at 7.5fps.
Using the SVC video protocol, SVC conferences relays the received video streams to the SVC-enabled
endpoints at different resolutions, frame rate s and line rates according to the endpoint's display capabilities
and layout configurations without sending the entire video layout to the endpoints.
For more details, see Polycom® RealPresence Collaboration Server (RMX) 1500/1800/2000/4000
Administrator's Guide, SVC Conferencing Guidelines.

Mixed CP and SVC Conferencing

This type of conference enables participants with SVC-enabled endpoints and AVC endpoints to participate
in the same conference.
Each endpoint connects according to its capabilities. The MCU processes the AVC video streams and
converts them into SVC video streams and relays them to the SVC participants that constructs the video
layout on the endpoint.
In the same way, the MCU processes the video streams received from the SVC participants, converts them
into AVC video and then transcodes all the video streams to compose the video layout that is sent to the
AVC endpoints.

Rich Video Layout Display Options

Video Layout describes the arrangement of cells on the screen of an endpoint, with each cell showing the
video of one of the conference participants. Usually, the participant cannot see himself/herself in the layout.
A selection of layouts are available to accommodate different numbers of participants and conference
settings.
The Collaboration Server (RMX) 1500/2000/4000 supports the VUI annex to the H.264 protocol for
endpoints that transmit wide video format instead of 4CIF resolution.
The following layouts are available as both Conference (all participants in the conference see the same
layout) and Personal (individually selected per participant) Layouts.
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