Network adaptive coding adjustment method and device

An adaptive coding and adjustment method technology, applied in the field of network adaptive coding adjustment methods and devices, can solve problems such as inability to make full use of network resources, poor effect of adjustment coding configuration, etc., to reduce adjustment fluctuations, reduce losses, and ensure balance. Effect

Active Publication Date: 2016-01-20
ZHEJIANG DAHUA TECH CO LTD
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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 p

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  • Network adaptive coding adjustment method and device
  • Network adaptive coding adjustment method and device
  • Network adaptive coding adjustment method and device

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Embodiment Construction

[0103] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0104]In order to solve the problems in the prior art that the adjustment of the encoding configuration is poor and the network resources cannot be fully utilized, in the embodiment of the present invention, to adjust the encoding configuration according to the current bandwidth and network congestion level, it is necessary not only to adjust the code stream value, but also to adjust the Frame frequency value, and when the code stream adjustment...

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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...

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Application Information

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IPC IPC(8): H04L12/803H04L12/823H04L12/851H04L12/865H04L12/873H04N19/134H04L47/32H04L47/52H04L47/6275
Inventor 曹新超
Owner ZHEJIANG DAHUA TECH CO LTD
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