Video code rate adaptive adjustment method and device

Abstract

An embodiment of the invention provides a video bitrate self-adaptation adjusting method and device. The method includes: acquiring the round-trip delay of the wireless communication with a correspondent node and the receiving rate of the correspondent node; acquiring queuing delay according to the round-trip delay; regulating video bitrate according to the queuing delay and the receiving rate, and encoding a video file according to the regulated video bitrate; transmitting the encoded video file to the correspondent node. The video bitrate self-adaptation adjusting method has the advantages that the round-trip delay between transmitting equipment and the correspondent node is acquired through the transmitting equipment, the queuing delay is calculated through the round-trip delay, the video bitrate is regulated according the queuing delay and the receiving rate of the correspondent node, that is to say, the queuing delay is used as the reference variable of video bitrate regulation; compared with a method using the packet loss rate as the reference variable of video bitrate regulation, the method can avoid the increasing of the packet loss rate due to link errors and long transmission distance of a wireless network and can accurately and effectively solve the real-time transmission problems of video files.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a video bit rate adaptive adjustment method and device. Background technique [0002] With the increasing coverage of wireless networks such as 3G, 4G, and WIFI, and the development of mobile phones with cameras and other portable devices, the use of real-time video interactive applications is becoming more and more extensive, and real-time video interactive applications have a significant impact on network delay and network bandwidth. Higher requirements for fluctuation and packet loss rate. However, in the wireless network, the wireless network itself has shortcomings such as high packet loss rate and large bandwidth fluctuation, which makes it very difficult to transmit video files based on the wireless network in real time. The video bit rate adaptive algorithm is used to adjust the video bit rate, so as to avoid the video traffic exceedin...

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a video bit rate self-adaptive adjustment method and device to accurately and effectively solve the problem of real-time transmission of video files

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