Centralized Media Control in Multi-Party Video Conferencing
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Solution Overview
Problem
In multi-party video conferencing scenarios, the central node lacks effective control over media streams due to increased information complexity, leading to disordered media management and reduced centralized control.
Innovation Solution
A media control method and device that obtain and process media information and session requests to send media operation instructions based on media control policies, establishing centralized control over media streams by mapping media object identifiers, attribute information, and channel information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If each participant dominates media according to their own capability in multi-party sessions, then participants can freely select and control media streams, but centralized control over media at the whole site becomes weak and disordered
Solution Approach 1:
The patent introduces a central node as an intermediary between participants and media streams. The central node receives media information from participants, reconstructs it according to conference policies, and distributes it to participants. This mediator enables both participant freedom in media selection and centralized control by the conference system, resolving the contradiction between individual autonomy and overall coordination.
2Productivity
If the quantity of participant terminals increases to support more participants, then conference scalability is improved, but the amount of media information to be managed increases, leading to stronger disorder in media control
Solution Approach 1:
The patent segments media information management into two parts: participants independently manage their own media streams according to their capabilities, while the central node manages the overall coordination and policy enforcement. This segmentation allows the system to scale to more participants without proportionally increasing the complexity of media information management, as each participant only needs to handle their own media while the central node handles the coordination.
3Loss of information
If participants announce media information using CLUE protocol to enable multi-perspective selection, then media information completeness is improved, but control over media at the whole site becomes relatively disordered
Solution Approach 1:
The patent implements preliminary action by having the central node pre-configure media control policies before participants announce their media information. These policies define how media should be selected, prioritized, and distributed. When participants announce their media capabilities via CLUE protocol, the central node already has the framework in place to process this information according to conference policies, maintaining control while ensuring complete media information is captured and properly managed.
Data Source
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AI summary
The present invention discloses a media control method and a media control device. The media control method includes: obtaining, by a conference center, media information sent from user equipment and receiving a session request sent by the user equipment; obtaining, according to a media object identifier carried in a media control policy, attribute information of a media object corresponding to the media object identifier carried in the media control policy, from the media information, and obtaining a session identifier and channel information that are corresponding to the media object identifier carried in the media control policy, from the session request; and sending a media operation instruction included in the media control policy, the obtained attribute information of the media object, and the obtained channel information to the user equipment that sends the session identifier, where the media operation instruction is used to instruct the user equipment to operate the received attribute information of the media object and the received channel information. A currently existing situation that control over media at a whole site is relatively disordered is avoided, and the control over the media in a whole site scenario by the conference center is improved.