Method and device for adjusting network digital video play speed

Abstract

The invention discloses a method and a device for adjusting a network digital video play speed, and aims to solve the problem that a media data packet has longer time delay during transmission in the prior art. The method comprises the following steps of: when the quantity of a full data frame memory in a frame memory chain changes, determining a first speed corresponding to the numerical range of the unchanged quantity of the full data memory and a second speed corresponding to the numerical range of the changed quantity of the full data memory; and comparing the first speed with the second speed, and adjusting the network digital video play speed corresponding to each set numerical range according to the comparison result. The technical scheme adopted by the invention has the advantagesof reducing the time delay during the transmission of the media data packet and improving network performance.

Description

technical field [0001] The invention relates to the field of multimedia technology, in particular to a method and device for adjusting the playback speed of network digital video. Background technique [0002] With the development of network technology and multimedia technology, streaming media technology came into being. Streaming media includes audio, video, multimedia files, and more. Network digital video playback is one of the important applications of current network multimedia technology. Due to the gradual improvement of network technology, multimedia services such as remote real-time video playback and video download have been more and more widely used. However, since these multimedia services depend on the network environment, the quality of the network environment plays a decisive role in the quality of remote video playback. When network congestion occurs, it often causes delays and out-of-order media packets during transmission. And other problems, resulting i...

AI Technical Summary

Problems solved by technology

However, this method of using a fixed-size buffer has the following disadvantages: On the one hand, it can only solve the relatively stable network delay in a network environment with network congestion, and it cannot solve the problem in a network environment with large fluctuations in network congestion. Solve the problem of unsmooth video playback; on the other hand, if the network environment is good and there is no large delay, maintaining a relatively fixed buffer length may cause a large image delay during video playback and cause network delays. poor performance problem

[0005] However, the correspondence in this method is a static correspondence, which lacks flexibility and cannot be well adapted to various situations.

Images