A low-latency network adaptive live broadcast system

Abstract

The invention discloses a low-delay adaptive network live broadcast system, comprising a camera, a server and a user terminal; wherein at least one camera and at least one server are provided, each server is connected to more than one camera, the camera collects data stream and pushes the collected data stream to the server, and the server records a relation of the data stream and the camera through a channel; when the user terminal obtains the data stream from a certain server through the channel, if the server has this channel, the server directly pushes the data stream collected by the camera corresponding to the channel to the user terminal to be displayed, and if the server does not have the channel, the server obtains the channel from other servers and forwards the corresponding data stream to the user terminal to be displayed. The system separates the operation of receiving the data stream and pushing the data stream, asynchronously achieves the forwarding process and dynamically adjusts the size of a buffer queue, so that the transmission efficiency is high and the delay is small; and multichannel and concurrent access of a large number of users can be supported.

Description

technical field [0001] The invention relates to the field of live broadcast technology, in particular to a low-delay network adaptive live broadcast system. Background technique [0002] The live broadcast system can compress the audio or video signal of the event site and transmit it to the server at the request of the user, and then it can be listened to or watched by the general audience or authorized specific groups of people on the network. The existing live broadcast system has the following problems: 1) usually only distributes or forwards the data stream, does not filter the stream, does transparent transmission, and cannot obtain the data in the stream; 2) mostly adopts centralized management, when several When several streaming media servers are running at the same time, each server usually only serves a certain area or a certain part of specific users, and the data source is isolated from users. There is little data circulation between servers. When the data sour...

AI Technical Summary

Problems solved by technology

The existing live broadcast system has the following problems: 1) usually only distributes or forwards the data stream, does not filter the stream, does transparent transmission, and cannot obtain the data in the stream; 2) mostly adopts centralized management, when several When two streaming media servers are running at the same time, each server usually only serves a certain area or a certain part of specific users, and the data source is isolated from users

There is little data circulation between servers. When the data source is on other servers, users cannot view the data; 3) The data is usually transmitted to the user in a synchronous manner, which is inefficient and has a large delay; 4) Usually manual deployment and upgrades require professionals control; 5) no network congestion control

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