Method and device for switching video stream

Abstract

The invention discloses a method and a device for switching a video stream. The method comprises the following specific steps: if the play request information of a video sent by a terminal is received, obtaining the video stream of the video, wherein the video comprises a video stream of a first picture group frame number and a video stream of a second picture group frame number, and the first picture group frame number is less than the second picture group frame number; sending the video stream of the first picture group frame number to the terminal, searching for a key frame in the video stream of the first picture group frame number, and extracting the decoding timestamp of the key frame; searching the video stream of the second picture group frame number to determine whether a frame with the same decoding timestamp exists; if the frame with the same decoding timestamp exists, further detecting whether the frame is the key frame; and if the frame is the key frame, sending the video stream of the second picture group frame number to the terminal. Through the way, low delay of video play is guaranteed, and the picture quality of the video is improved.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to the field of video playing technology, and in particular to a method and device for switching video streams. Background technique [0002] Streaming media refers to media formats, such as audio, video or multimedia files, that are played continuously and in real time on the network using streaming technology. Streaming media technology compresses continuous video and audio information and puts them on the website server, and the video server transmits each compressed package to the user's computer sequentially or in real time, allowing users to watch and listen while downloading without waiting for the entire process. It is a network transmission technology that can only be viewed after downloading compressed files to your own computer. [0003] However, in the existing streaming media server, in order to increase the loading speed of the player side, a picture group...

AI Technical Summary

Problems solved by technology

[0003] However, in the existing streaming media server, in order to increase the loading speed of the player side, a picture group cache is usually set in the server. When the player side sends a video playback request, the server will send the cached image to the player side The picture group, so that the player can start playing immediately. However, due to some factors, the existence of the picture group may cause a delay in video playback. If the frame number of the set picture group is large, it will cause a delay in video playback. Also larger, if the frame number of the set picture group is small, although the delay in video playback will be small, the quality of the video will also be reduced

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