Atlassian Corporation Pty Ltd.

Emil Ivov

Boris Grozev

Georgios Politis

Pawel Domas

A method for dynamically adapting to increased system load at a selective forwarding unit (SFU) is disclosed. In an embodiment, an SFU sends a plurality of video streams to a plurality of participant computing devices. The SFU monitors a system load value on the SFU according to any of a plurality of metrics. When the SFU determines that the monitored system load value exceeds a stored load threshold value, the SFU selects one or more of the streams being sent to participant computing devices and disables them.

Dynamic adaptation to increased SFU load by disabling video streams

A computer-implemented method comprises establishing, by media servers, a video conference for client computing devices, each media server receiving audio data and video data from a local subset of the client computing devices, selecting, by each media server, a portion of the local subset for which to send audio data to other media servers, sending, by each media server, audio data associated with the portion to other media servers, after receiving audio data from other media servers, generating, by each media server, ordered global list data that identifies each client computing device for which the media server has received audio data, based on the global list data and by each media server to other media servers, sending video data for each client computing device of the local subset that satisfies a threshold value.

Selective internal forwarding in conferences with distributed media servers

An example data processing technique includes determining, by a first media server during a first media session between a client device and the first media server, a stable bitrate value based on a rate at which the first media server receives data from the client device in the first media session. Further, the example technique includes, based on determining the stable bitrate value, storing in a database the stable bitrate value for the client device, and receiving, from the client device, a request to establish a second media session. The example technique also includes, in response to receiving the request, searching the database for a particular stable bitrate value for the client device, and sending the particular stable bitrate value to the client device, wherein the client device is configured to estimate, based on the particular stable bitrate value, an initial bitrate value for transmitting data from the client device to a second media server in the second media session.

Rapid optimization of media stream bitrate

A method comprises establishing a video conference between at least two instances of a media application over a relay connection; in response to determining that the video conference comprises only two instances of the media application: receiving, from a first instance of the two instances of the media application, a plurality of candidate addresses for a peer to peer (P2P) connection with a second instance of the two instances of the media application; sending, to the second instance of the media application, the plurality of candidate addresses, wherein the P2P connection is established using a particular candidate address of the plurality of candidate addresses; after the P2P is established, maintaining the relay connection in an inactive state while media data for the video conference is sent over the P2P connection until a switch-over event occurs, wherein metadata is sent over the relay connection to keep the relay connection in the inactive state.

Parallel peer to peer connection establishment in webRTC conferencing

A computer implemented method comprises transmitting initial signaling data for a video conference from a signaling server to a plurality of client computing devices, the initial signaling data omitting identifiers for media data, establishing, by a media server, the video conference with the plurality of client computing devices, the plurality of client computing devices having used the initial signaling data to connect to the media server, sending, by the media server, media data for a subset of the plurality of client computing devices to the plurality of client computing devices, sending, by the media server, identifiers of the media data to the plurality of client computing devices.

On demand in-band signaling for conferences

A computer-implemented method comprises using a media server, establishing a video conference between a first instance of a media application and a second instance of the media application over a relay connection, in response to determining that the video conference comprises only the first instance and the second instance of the media application, determining by the first instance of the media application candidate addresses for a peer to peer (P2P) connection with the second instance of the media application, the candidate addresses excluding the media server, sending the candidate addresses to the second instance of the media application, establishing the P2P connection using a particular candidate address, in response to establishing the P2P connection, setting the relay connection to an inactive state and sending media data for the video conference over the P2P connection.

Parallel peer to peer connection establishment in WebRTC conferencing

A data processing method comprises, using a media server during a first media session between a client device and the media server, determining a stable bitrate value for use as a rate of transmitting multimedia data from the client device to the media server; storing, in a database, the stable bitrate value for the client device in association with an identifier; receiving, from the client device, a request to establish a second media session; determining the identifier within the request; in response to the request, based on the identifier in the request, searching the database for the stable bitrate value that is associated with the identifier; in response to locating the stable bitrate value in the database, sending the stable bitrate value to the client device for use in estimating a bitrate for transmitting multimedia from the client device to the media server in the second media session; establishing, by the media server, the second media session, wherein the media server initially receives multimedia data from the client device at the stable bitrate.

On Demand in-band signaling for conferences

A data processing method comprising receiving, at a proxy associated with a plurality of ICE endpoint computers, a datagram from a client computer for a specific ICE endpoint computer of the plurality of ICE endpoint computers, wherein the datagram comprises a username generated by the specific ICE endpoint computer, and wherein the username has been sent to a server computer by the specific ICE endpoint computer for use in establishing a session between the specific ICE endpoint computer and the client computer, in response to attributes of the datagram not matching an entry in a table of the proxy, extracting an identifier from the username, forwarding, by the proxy, the datagram to the specific ICE endpoint based on the identifier.

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Austin, TX, United States of America

Emil Ivov