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An adjustment and control method for video transmission under the condition of narrowband network

A technology of video transmission and adjustment control, applied in transmission systems, image communication, selective content distribution, etc., can solve problems such as relatively large fluctuations in network bandwidth, and achieve the effect of accurate control and adjustment

Active Publication Date: 2016-01-20
杭州杰峰科技有限公司
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Problems solved by technology

[0004] 3. For wireless network environments such as 3G, because the transmission signals propagate in an open environment, they are more susceptible to interference and influence, resulting in relatively large fluctuations in network bandwidth

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  • An adjustment and control method for video transmission under the condition of narrowband network
  • An adjustment and control method for video transmission under the condition of narrowband network
  • An adjustment and control method for video transmission under the condition of narrowband network

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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with accompanying drawing: figure 1 As shown, a main functional block diagram of an adjustment control method for video transmission under the condition of narrowband network. The main adjustment process of this method is divided into the following steps, three major stages of bandwidth prediction, target code rate calculation and throttling configuration. The calculation result of the previous step is used as the calculation input of the next step.

[0019] The network bandwidth prediction refers to predicting the current network bandwidth according to the statistical value sent by the network obtained in the previous cycle. When the existing data volume of the queue in the statistical value is greater than the set threshold, the network sending speed in the statistical value As the predicted current network bandwidth; when the sending speed in the statistical value is greater than the network band...

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Abstract

The invention relates to a regulation and control method for video transmission on a narrow-band network. The regulation and control method comprises three steps, namely, network bandwidth prediction, object code rate calculation and throttling configuration. The step of network bandwidth prediction means that the current network bandwidth is predicted according to the statistical value which is obtained in a previous cycle and is transmitted through the network. The step of object code rate calculation means that an object code rate is calculated according to the statistical valve which is obtained in a previous cycle and is transmitted through the network. The step of throttling configuration means that different methods of frame loss and code rate reduction are applied according to a narrow-band strategy to achieve the purposes of image quality priority, fluency priority and network transmission priority. By means of the regulation and control method for the video transmission on the narrow-band network, the network bandwidth is predicted accurately, the condition of the network bandwidth is tracked rapidly and stably, data transmission efficiency under the condition that the bandwidth is limited is improved, and data size produced by video sources is controlled and regulated rapidly and accurately to enable the data size to be matched with the current effective bandwidth in real time.

Description

technical field [0001] The invention relates to an adjustment strategy and control method for video transmission under the condition of a narrowband network, mainly relates to network transmission technology of media data such as audio and video, and is mainly applicable to the field of security video monitoring. Background technique [0002] 1. In recent years, due to the development of information technology and the popularization of home networks, almost every family has access to the Internet, and most mobile phones have also opened 3G networks. Therefore, in the field of video surveillance, it is also proposed to be able to control it anytime, anywhere. expect. [0003] 2. Although the current video compression technology has been greatly improved, that is, the image effect that can be achieved in the case of low bit rate has also been greatly enhanced compared with the previous algorithm. However, because our network environment is still not very mature, the network b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/647H04L29/08
Inventor 葛益军
Owner 杭州杰峰科技有限公司
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