System and method for scalable media switching conferencing

An apparatus comprising:

• a communication interface;
• a memory configured to store executable instructions;
• and
• a processor coupled to the communication interface and the memory and configured to perform operations including:
• obtaining, from a first client device, metadata indicating different formats of a video that the first client device is configured to transmit during a communication session with one or more second client devices;
• obtaining, from the one or more second client devices, a first subscription message;
• in response to the first subscription message, selecting, for each of the one or more second client devices, one of at least a first video stream having a first format or a second video stream having a second format different from the first format, based on the metadata and information in the first subscription message;
• providing, to the first client device, a message instructing to start transmission, to the one or more second client devices, of a selected video stream from among at least the first video stream and the second video stream based on the first subscription message;
• and
• obtaining, from the one or more second client devices, a subsequent subscription message unsubscribing to the selected video stream based on an event occurring during the communication session.

One or more non-transitory computer readable storage media encoded with instructions that, when executed by a processor, cause the processor to perform operations including:

• obtaining, from a first client device, metadata indicating different formats of a video that the first client device is configured to transmit during a communication session with one or more second client devices;
• obtaining, from the one or more second client devices, a first subscription message;
• in response to the first subscription message, selecting, for each of the one or more second client devices, one of at least a first video stream having a first format or a second video stream having a second format different from the first format, based on the metadata and information in the first subscription message;
• providing, to the first client device, a message instructing to start transmission, to the one or more second client devices, of a selected video stream from among at least the first video stream and the second video stream based on the first subscription message;
• and
• obtaining, from the one or more second client devices, a subsequent subscription message unsubscribing to the selected video stream based on an event occurring during the communication session.