Some of the advantages of SVC conferencing are:
•Offers high-resolution video conferencing with low end-to-end latency, improved error resiliency and higher system capacities.
•Allows the SVC-enabled video endpoints to manage display layouts, support multiple resolutions and data rates. SVC provides simulcasting at different resolutions with more layout building options on the endpoint. Flexible in-stream selection to accommodate various endpoint capabilities such as bandwidth, CPU, screen resolution, and so forth.
•The RealPresence Collaboration Server functions as a media relay server providing low cost production benefits. The RealPresence Collaboration Server reduces bandwidth usage by only selecting the necessary video stream to be sent to the endpoints.
Using SVC-Enabled Endpoints in a Mixed AVC and SVC Conference
A transcoded CP (Continuous Presence) conference is also described as an AVC (Advanced Video Coding) conference. All endpoints that do not support the H.264 SVC protocol such as H.263, H.264, or RTV, are considered AVC endpoints.
The RealPresence Collaboration Server 800s - Virtual Edition, the industry’s first multi- protocol, integrated software MCU that runs on industry-standard servers, can manage a mixed SVC and AVC-based conference. This type of conference enables participants with SVC-enabled endpoints and AVC endpoints to participate in the same conference.
SVC endpoints transmit multiple resolutions and temporal layers to the Collaboration Server like the SVC-based conferences, while AVC endpoints send only one H.264 AVC video stream to the Collaboration Server. The Collaboration Server relays SVC-decoded video bit streams to the SVC-enabled endpoints in the conference according to their display capabilities. This enables the video conference layouts to be automatically assembled by the endpoint. AVC endpoints connected to the conference send a single H.264 AVC video bit stream to the Collaboration Server, which is then transcoded to SVC video streams. SVC- enabled endpoints receive the AVC converted video bit streams through the Collaboration Server from the AVC endpoints as a single SVC video bit stream. Alternatively, AVC endpoints receive a single video bit stream with the defined video conference layout from the Collaboration Server. In this mixed mode conferencing, all AVC endpoints receive the same CP video layout as an AVC Only conference, but SVC endpoints receive the same video layout configuration as an SVC Only conference.
