Method for Processing Data Streams of a Conference Session by a Session Server

A method, implemented by a processor of a session server, for processing multimedia stream data packets of a conference session to which a plurality of terminals participate, the multimedia stream data packets being sent by at least one emitter terminal amongst the terminals participating to the conference session,

• wherein multimedia stream data packets emitted by the terminals participating to the conference are encapsulated according to an Internet protocol and are sent to the session server which distributes the multimedia streams to receiver terminals participating to the conference session,
• the method comprising:
• identifying the encoding codec implemented by each of the terminals participating to the conference;
• and
• when the session server receives a plurality of multimedia streams originating from a corresponding plurality of emitter terminals participating to the conference,
• decoding data packets of the plurality of multimedia streams received from the emitter terminals;
• mixing received multimedia stream data packets so that a mixed multimedia stream is transmitted to the receiver terminals;
• and
• encoding only once data packets of the mixed multimedia streams for each group of receiver terminals implementing the same encoding/decoding codec.