Method and device for multimedia streaming

And method, the RTP grouping emitting terminal (20) provides a time RTP grouping the type of receiver is the surplus broadcast the long actual receiver (50) buffer (54) fullness layer. The receiver is RTCP reported for (26) and sending the receiver buffer selected the time difference between each play time and current time of serial numbers and grouping of RTP grouping. Based on the time information, the transmitter and receiver connection to play of the normal speed, and without the RTP to set to form the receiver is buffer's, time recorder receiver buffer depletion is. The receiver buffer fullness horizontal information of the transmitter for regulating the transmission speed and/or the nominal play of speed RTP grouping, the movable of thermal the target receiver buffer fullness layer.