The method of sending at least one item of information relative to a multimedia data stream in a communication network is characterized in that it comprises the following steps carried out on a server device capable of sending the multimedia data stream over the network: obtaining at least one item of information relative to the data stream, said at least one item of information comprising an item of information on a visual quality of the multimedia data stream and an item of information on the bandwidth necessary for sending the stream with that visual quality, and sending said at least one obtained item of information over the communication network to a client device.