Live broadcast time shift method and client

Abstract

The invention discloses a live broadcast time shift method which is applied to a live broadcast network including a client and a server. The live broadcast time shift of a user on the client is divided into pause and play. The client acquires the time label of a first index file currently parsed by the client according to pause, and acquires the played time of a video clip corresponding to the first index file. The client determines the timestamp of pause in a live broadcast video according to the time label and the played time. When the client receives play, a live broadcast time shift request is sent to the server according to the time shift time and timestamp of play. The live broadcast video in the live broadcast network is parsed and played according to a second index file returned by the server. After a user who watches live broadcast carries out live broadcast time shift, discontinuous screen caused by play screen hysteresis and play delay is reduced, and the user experience is improved. The invention further discloses the client.

Description

technical field [0001] The invention relates to the technical field of live video broadcasting, in particular to a time-shifting method for live broadcasting and a client. Background technique [0002] With the continuous development of the Internet, live streaming has become more and more popular. As an essential technology for live broadcasting, HLS (HTTP Live Streaming, hypertext transfer protocol dynamic code rate adaptation) is used for audio and video services on PCs and mobile terminals. [0003] HTTP Live Streaming (HLS) is an HTTP-based streaming media transmission protocol implemented by Apple Inc., which can realize live and on-demand streaming media. It is mainly used in the iOS system to provide audio for iOS devices (such as iPhone and iPad). Live video and on-demand solutions. HLS on-demand is basically the common segmented HTTP on-demand, the difference is that its segments are very small. [0004] Compared with common streaming media live broadcast protoc...

AI Technical Summary

Problems solved by technology

And as mentioned above, the delay of data transmission through the HTTP protocol will always be higher than that of ordinary live streaming protocols, so the time-shifted live broadcast is currently unable to achieve zero delay or very small delay

Therefore, when the user implements the function of pausing and jumping backward during the live broadcast, it is not enough to only support the function of requesting a specific time through modification on the client side and the file index function of saving playback history through modification on the server side.

This is because using the system current time Millis of the client system to realize the pause and time shift function of the live broadcast is given by the player on the client side, but there may be errors when the operating system of the client side is synchronized with the server, plus It will also take a certain amount of time for the player to prepare for playback and download. Under normal network conditions, there will be a large delay

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