Network adaptive coding adjustment method and device

Abstract

The present invention discloses a network adaptive coding adjustment method and a network adaptive coding adjustment device. The network adaptive coding adjustment method comprises the steps of: acquiring, by a terminal, a media frame, putting the media frame into a buffer queue, and calculating a current bandwidth and a current network congestion level; judging a data rate adjustment type according to the current bandwidth and the current network congestion level, and calculating coding adjustment parameters, wherein both adjusted data rate values and adjusted frame frequency values need to be calculated, in this way, when the data rate is adjusted downwards, frame frequency is correspondingly reduced, thus the problem of deteriorated image quality caused by reduction of the data rate can be effectively solved, and when the data rate adjustment type is downward adjustment, the data rate value needing to be adjusted downwards is calculated based on the current bandwidth, thus the maximal bandwidth utilization rate can be achieved as far as possible while process is ensured; and performing, by the terminal, coding configuration adjustment based on the calculated coding adjustment parameters. Through adoption of the above network adaptive coding adjustment method, coding configuration is adjusted in an adaptive bandwidth mode, thereby reducing transmission of invalid media frames, and improving smoothness.

Description

technical field [0001] The present invention relates to the communication field, in particular to a network adaptive encoding adjustment method and device. Background technique [0002] With the continuous expansion of Internet coverage, more and more security devices are connected to the Internet. However, the Internet has two characteristics relative to LANs: high volatility and low bandwidth. In this case, if the surveillance video is collected at a fixed data rate, frequent frame loss will occur, which may bring immeasurable losses to users. Therefore, a network adaptive coding adjustment mechanism is needed to reduce the occurrence of frame loss. [0003] In the prior art, two network adaptive coding adjustment methods are provided. [0004] The first method is: to detect the network status is to use poll to judge whether the socket is writable. If it reaches the bad network level value BAD_CONDITION times and cannot write it, the code rate will be reduced; , and is...

AI Technical Summary

Problems solved by technology

[0023] The purpose of the present invention is to provide a network adaptive coding adjustment method and device to solve the problems in the prior art that the adjustment coding configuration effect is poor and network resources cannot be fully utilized

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