System for secondary retransmission based on streaming media packet loss and method of system

Abstract

The invention discloses a system for secondary retransmission based on streaming media packet loss and a method of the system and relates to the field of streaming media playing. The system comprises a control module, and a data receiving module, a network packet loss detection module, a retransmission module and a video playing module which are connected to the control module, wherein the data receiving module is used for receiving and storing data packets in a chain table, and judging whether the data packets are retransmission data packets and carrying out sorting processing on the data packets; the network packet loss detection module is used for analyzing the data packets and detecting the packet loss conditions of the data packets; the retransmission module is used for adding the lost data packets into a retransmission queue and making a retransmission request to a server, and is also used for adding the lost data packets after retransmission into the retransmission queue and making a secondary retransmission request to the server; and the video playing module is used for obtaining the data packets after sorting processing from the chain table to play. According to the system and the method, the network packet loss rate can be reduced and the perception and the experience of a user can be improved.

Description

technical field [0001] The invention relates to the field of streaming media playback, in particular to a system and method for secondary retransmission based on streaming media packet loss. Background technique [0002] With the development of digital technology and Internet technology, the application of Internet multimedia related services, such as OTT (Over TheTop TV, Internet TV) business, IPTV (Interactive Personality TV, Interactive Internet TV) business, digital broadcasting business, etc. applications. The common feature of these services is to use Internet technology to encapsulate the media stream in TS (Transport Stream, transport stream) packets, and then use the transmission protocol UDP (User Datagram Protocol, User Datagram Protocol) or RTP (Real-time Transprot Protocol, real-time transmission protocol) to distribute the data packets. However, neither UDP nor RTP is a reliable transmission mode, and data packet loss will inevitably occur during network tran...

AI Technical Summary

Problems solved by technology

The 4 lost data packets in this way will still cause the video playback to be slightly stuck or blurred. The 10,000 data packets of a high-bit rate source may not be played for more than 10s, and there are several slight freezes or blurred screens in 10s, which makes the user feel that the playback is not good. Smooth, poor user experience

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