FIELD: physics, video.
SUBSTANCE: present invention relates to a video surveillance system and a forward error correction (FEC) method. The method includes the surveillance external interface initiating a session request to the surveillance platform and establishing a session; the surveillance external interface performing FEC encoding on a source media code stream, and transferring an FEC code stream obtained through the encoding and the source media code stream to the surveillance platform in the same channel; the surveillance platform splitting received code streams into the source media code stream and the FEC code stream, and if it is determined that a media packet is lost in the source media code stream, recovering the lost media packet in the source media code stream through the FEC code stream By using the present invention, the problem of network packet loss between the surveillance external interface and surveillance platform frequently resulting from limited uplink bandwidth is solved and operating costs reduced.
EFFECT: high rate of recovering a lost media packet in a source media code stream through a FEC code.
10 cl, 5 dwg
