A method and system for measuring the time difference between audio and video on a live broadcast platform

Abstract

The present invention provides a method and system for measuring the time difference of audio and video on a live broadcast platform. The method includes: a timing alarm device performs timing according to a preset time accuracy, and the timing generates a first timing information image; during the timing process, a first alarm is generated Sound signal; the time difference acquisition device monitors the live audio and video played by the player, and when capturing the first alarm sound signal in the sound card, saves the current image in the graphics card; performs image recognition processing on the current image to obtain the first timing time; according to the first timing The time difference between the timing time and the actual alarm time to obtain the live audio and video. Through the method provided by the embodiment of the present invention, the audio and video time difference of the live broadcast platform can be measured more accurately, and the technical requirements for testers are reduced, and the method is completely tested from the perspective of the user, and the test result is closer to the real feeling of the user.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method and system for measuring the time difference between audio and video on a live broadcast platform. Background technique [0002] Webcasting is a new way of socializing on the Internet, which allows people to watch videos on different communication platforms through the network system at the same time, and the webcasting platform has also become a brand new social media. Mainly divided into real-time live broadcast games, movies or TV series, etc. [0003] There are roughly two types of domestic "network live broadcast". One is to provide viewing of TV signals on the Internet, such as the live broadcast of various sports games and cultural activities. The principle of this type of live broadcast is to convert the TV (analog) signal into digital signal input through collection The computer uploads the website in real time for people to watch, which is equiva...

AI Technical Summary

Problems solved by technology

[0010] First, most of the audio and video live streams on the live broadcasting platform are regularly collected by the broadcasting device to generate video files such as FLV through video encoding of the monitor screen and sound card audio. The process of collecting and encoding by the broadcasting device has already introduced a certain time difference between audio and video. The time difference must exist, the time difference cannot be reflected in the timestamp, and it cannot be tested using the above method;

[0011] Second, it needs to rely on the information of the video stream file for calculation. The process of analyzing video and audio frames during playback needs to be performed in the player. This kind of analysis can only be easily done by the developer of the player, and black-box testing is performed. of dedicated testers are difficult to test

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