Live streaming data sending method, live streaming acceleration server and terminal

Abstract

The embodiment of the invention provides a live broadcast stream data sending method, a live broadcast acceleration server and a terminal, and the method comprises the steps: sending a relay live broadcast stream to the terminal in a delayed manner, so that the preset delay duration of receiving the relay live broadcast stream by the terminal is t1; if a channel switching request sent by the terminal after receiving the relay live stream is received, obtaining a sending position of the relay live stream being sent; sending the target data to the terminal in a unicast manner according to the sending position; and sending the target data to the terminal, so that the terminal closes a unicast channel after receiving the target data, joins multicast stream data to be played with played unicaststream data according to the target data and the relay live stream, and plays the multicast stream data through a preset delay duration t3. The live broadcast acceleration server executes the method;Terminal execution another method. According to the method, the live broadcast acceleration server and the terminal provided by the embodiment of the invention, the bandwidth consumption of the terminal in the channel changing process is reduced.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of streaming media, and in particular to a method for sending live streaming data, a live streaming acceleration server, and a terminal. Background technique [0002] In the field of IPTV video live broadcast, UDP multicast is usually used to realize user live video. Based on the characteristics of compressed and encoded GOP (Group of Pictures) in UDP multicast video streams, the terminal can only complete the subsequent decoding process after receiving a complete I frame; the waiting time for the video I frame to arrive is usually more than 800 milliseconds (depending on the size of the GOP, the wait The time is different), which is the biggest factor affecting the speed of changing channels. [0003] The current fast channel switching scheme is adopted, and a live broadcast acceleration server is added to the traditional live broadcast network. During the channel switching process, t...

AI Technical Summary

Problems solved by technology

In the process of realizing the present invention, the inventors found that the above-mentioned prior art has at least the following problems: at the stage when the unicast flow and the multicast flow are delivered at the same time, the unicast flow and the multicast flow consume bandwidth at the same time, resulting in a large amount of bandwidth consumption. many

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