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Bandwidth control method, device and system

A bandwidth control and bandwidth technology, applied in the field of communications, can solve the problems of insufficient bandwidth, video quality degradation, bandwidth surplus, etc., and achieve the effect of reducing the probability of occurrence and reducing the degradation of video quality.

Inactive Publication Date: 2010-09-15
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The inventor found in the process of creating the present invention that since the bandwidth of each video signal in the existing DVS / DVR equipment is pre-allocated, when the content of a certain video signal changes suddenly, such as a person running violently, a car suddenly After driving, etc., the video signal of this channel may have serious block effect due to insufficient bandwidth, resulting in serious degradation of video quality; when a certain video signal is very simple, such as when the car is still at a red light, the actual The bandwidth may be less than the pre-allocated bandwidth, resulting in bandwidth surplus

Method used

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  • Bandwidth control method, device and system
  • Bandwidth control method, device and system

Examples

Experimental program
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Embodiment 1

[0037] see figure 2 , figure 2 A schematic flowchart of a bandwidth control method provided in Embodiment 1 of the present invention, as shown in figure 2 As shown, the method may include:

[0038] Step 201: Obtain the current video sequence complexity information of each video signal;

[0039] Specifically, the current video sequence complexity information of each video signal sent by the encoding module corresponding to each video signal may be received; and,

[0040] The current video sequence complexity information of each video signal is sent by the encoding module corresponding to each video signal after encoding the current video sequence of the input video signal.

[0041] Step 202: quantify the complexity information of the current video sequence of each video signal, and obtain the complexity level of the current video sequence of each video signal according to the complexity information;

[0042] Specifically, the quantization value of the current video seque...

Embodiment 2

[0050] see image 3 , image 3 It is a schematic flowchart of a bandwidth control method provided by Embodiment 2 of the present invention. The embodiment of the present invention specifically takes controlling the bandwidth of each video signal in a DVS / DVR device as an example to introduce the bandwidth control method provided by the embodiment of the present invention. like image 3 As shown, the method may include:

[0051] Step 301: Obtain the current video sequence complexity information of each video signal in the DVS / DVR device;

[0052] In the existing DVS / DVR equipment, multiple encoding modules (AV Enc) can be supported at the same time, and each encoding module can encode an input video signal, such as MPEG4 encoding, H.264 encoding, etc.;

[0053] For each encoding module, the received video signal is received in units of sequence, or the video signal is input into each encoding module in units of sequence; by encoding the current video sequence of one video s...

Embodiment 3

[0073] see Figure 4 , Figure 4 It is a schematic diagram of a logical structure of a bandwidth control device provided by Embodiment 3 of the present invention. The bandwidth control device provided by Embodiment 3 of the present invention can be used as a bandwidth control device independent of DVS / DVR equipment, and is used to control the bandwidth device of each of the multiple video signals simultaneously supported by the DVS / DVR device; It can also be used as a part of DVS / DVR equipment to control the bandwidth device of each video signal of multiple video signals supported by DVS / DVR equipment at the same time. The embodiments of the present invention are not limited here.

[0074] like Figure 4 As shown, the device may include:

[0075] An acquisition module 401, configured to acquire the current video sequence complexity information of each video signal;

[0076] The quantization module 402 is used to quantify the current video sequence complexity information o...

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Abstract

The embodiment of the invention discloses bandwidth control method, device and system. The method comprises the following steps of: firstly, acquiring the current video sequence complexity information of each path of video signals; then quantifying the current video sequence complexity information of each path of video signals and obtaining a current video sequence complexity grade of each path of video signals according to the complexity information; and finally, distributing a total bandwidth to each path of video signals according to the current video sequence complexity grade of each path of video signals. The invention can achieve the purpose of dynamically distributing the bandwidth of each path of video signals so as to reasonably utilize the total bandwidth and reduce the occurrence probability of video quality reduction.

Description

technical field [0001] The present invention relates to the technical field of communications, and in particular to a bandwidth control method, device and system. Background technique [0002] At present, people often use such a device in monitoring, security, etc., which is composed of a digital video server (DVS, Digital Video Server) and a digital video recorder (DVR, Digital Video Recorder). This device is also called DVS / DVR equipment. Among them, the main purpose of DVS / DVR equipment is: to encode the video signals of video acquisition equipment of various surveillance cameras for the transmission and storage of video signals. In actual use, in order to improve the integration of the system, a DVS / DVR device often supports the encoding of multiple video signals at the same time, and then transmits the encoded video signals to the remote end through the network transmission channel, so that video can be realized. monitoring and storage. For example, in the monitoring...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/06H04N7/26
CPCH04N19/0029H04N21/26216H04N19/00157H04N21/2187H04N21/2365H04N7/26281H04N19/0006H04N7/26127H04N21/4347H04N21/23655H04N21/2385H04N21/2402H04N19/115H04N19/14H04N19/179
Inventor 赵雷
Owner HUAWEI TECH CO LTD
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