Forward error correction method and equipment for real-time transmitted data flow, and storage medium
A real-time transmission and forward error correction technology, applied in transmission systems, digital transmission systems, error prevention, etc., can solve the problems of FEC being difficult to be compatible and interoperable, and achieve the effect of ensuring communication quality
Active Publication Date: 2017-10-17
深圳市鹏创软件有限公司
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[0003] The main purpose of the present invention is to provide a forward error correction method, device and storage medium for real-time transmission data streams, aiming to solve the technical problem in the prior art that FEC between incompatible systems is difficult to be compatible and interoperable
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[0053] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0054] In the prior art, FEC (Forward Error Correction) mechanisms among incompatible systems are generally incompatible, resulting in a complete failure of the FEC function, thereby failing to reduce or eliminate the packet loss problem.
[0055]The present invention screens the data packets in the real-time transmission data stream sent by the sending end, generates redundant packets through the screened data packets through a preset encoder, sends the redundant packets to the receiving end, and sends them to the receiving end in real time Data packets are screened again in the transmission data stream and redundant packets, and generated according to the current packet loss situation, based on unlost source packets and filtered redundant packets (the second type of data packets and the second type of redundant packe...
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The invention discloses a forward error correction method and equipment for a real-time transmitted data flow, and a computer readable storage medium. The method comprises the steps: screening out a first type of data packets meeting a preset first condition from the real-time transmitted data flow transmitted by a transmitting end; generating a redundancy packet through a preset encoder according to the first type of data packets, and transmitting the redundancy packet to a receiving end; screening a second type of data packets meeting a preset second condition from the real-time transmitted data flow transmitted to the receiving end and the redundancy packet, and a second type of redundancy packets; and generating a recovery packet through a preset decoder according to the second type of data packets and the second type of redundancy packets when a packet is detected to be lost. According to the scheme of the invention, the method enables a forward error correction mechanism to be applicable during the transmission of a network communication data flow between incompatible systems, and guarantees the quality of communication between heterogeneous real-time communication systems.
Description
technical field [0001] The invention relates to the field of error control of network communication data streams, in particular to a forward error correction method, device and computer-readable storage medium for real-time transmission data streams. Background technique [0002] Packet loss is a common problem in network communication data stream transmission. In scenarios with high real-time requirements, the User Datagram Protocol (UDP) is generally used to transmit data. In order to overcome the packet loss problem in UDP transmission, most real-time applications adopt forward error correction (Forward Error Correction, FEC) to recover the lost data packets. However, in practical applications, FEC mechanisms between different systems are generally incompatible, which leads to complete failure of the FEC function, thus making it impossible to reduce or eliminate the packet loss problem. Contents of the invention [0003] The main purpose of the present invention is to...
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Inventor 黄星柴亚伟
Owner 深圳市鹏创软件有限公司