Receiver for error-protected packet-based frame

摘要

In one embodiment, the real-time transport protocol (RTP: real-time transmission protocol) and Forward Error Correction ( FEC: the receiver is disclosed for the frames of the media packets to forward error correction) is adopted. The receiver comprises a packet buffer, and the FEC decoder. After the packet is received by the packet buffer, FEC decoder reads a packet, a full frame (or indeed any of the subsequent packet of a frame) without waiting to be received, as part of the FEC processing, performing an XOR operation on the packet The. XOR operation results are stored until enough packets have been received to reconstruct the missing packets in the frame. Since the packet is received immediately after the XOR operation are performed, from having to await the next packet without any delay, the receiver has a very low latency, packet buffers may be relatively small. ;