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Intelligent video stream bandwidth regulating method

An intelligent adjustment and video streaming technology, applied in the field of audio and video, can solve the problems of reducing the encoding bit rate and not considering the video balance relationship of multiple video transmission channels, so as to achieve the effect of improving user experience

Active Publication Date: 2010-06-16
SHANGHAI AVCON INFORMATION TECH
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Problems solved by technology

[0011] The above papers only consider the dynamic adjustment of limited network bandwidth for single-channel video transmission. Usually, an algorithm is used to calculate the available network bandwidth in real time, and then the encoding bit rate is reduced to dynamically adapt to the network bandwidth. Multi-channel video is not considered. The balance relationship between the videos of each channel during transmission, that is, how to ensure the best image effect for each channel, so as to improve the overall performance

Method used

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Embodiment 1

[0038] The invention discloses a video stream bandwidth intelligent adjustment method based on a video conference template. The method automatically calculates the original resolution for multiple sub-windows of different sizes in different meeting templates in the video conference according to the resolution of the template, and selects the optimal size of the encoded broadcast or the sub-window according to the calculated original resolution of the sub-window. Decoding and displaying video streams can achieve a balance between conference templates, network bandwidth, and video clarity, and maximize video image quality, thereby improving the overall performance of the video conference system.

[0039] see Figure 1 to Figure 3 , the video stream bandwidth intelligent adjustment method based on the conference template of the present invention includes the following main steps:

[0040] 1. Set the main control terminal of the meeting, select the meeting template and set the to...

Embodiment 2

[0060] This embodiment discloses a video stream bandwidth intelligent adjustment method, the method includes the following steps:

[0061] A. In the conference, set a participant video encoding master control terminal, select a conference template for the master control terminal, and set the total resolution for the selected template.

[0062] B. Fully automatic encoding video bandwidth adjustment steps for conference templates; when participants need to encode broadcast video, participants intelligently select the bandwidth size of the encoded broadcast video stream according to the moderator's conference template and the available network bandwidth of the moderator's conference terminal.

[0063] C. The conference template automatically receives video bandwidth adjustment steps; participants intelligently select the bandwidth size of the received decoded video stream according to the conference template.

[0064] In step B, when the current video stream is broadcast to a cer...

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Abstract

The invention discloses an intelligent video stream bandwidth regulating method. The method comprises the following steps of: setting a conferee video encoding main control end during a conference, selecting a conference template for the main control end and setting overall resolution for the selected template; regulating full-automatic encoding video bandwidth of the conference template, namely when a conferee needs encoding a broadcast video, allowing the conferee to intelligently select the magnitude of an encoding broadcast video stream bandwidth according to a host conference template and a host conference terminal available network bandwidth; and regulating a full-automatic received video bandwidth of the conference template, namely allowing the conferee to intelligently select the magnitude of a received decoding video stream bandwidth according to the conference template. The balance among the conference template, the network bandwidth and the video definition can be achieved and the video image quality can be maximized, so that the overall performance of a video conference system is improved.

Description

technical field [0001] The invention belongs to the technical field of audio and video, and relates to a bandwidth adjustment method, in particular to an intelligent adjustment method for video stream bandwidth. Background technique [0002] Usually, a network video conferencing system includes video intercommunication between multiple meeting places. Therefore, for a specific video conference terminal (participant), it will receive multiple video streams from other participants in the same conference, and at the same time, it will also broadcast more than one (usually two, camera input video and screen input video). These input and output multiple video streams will consume a large amount of network bandwidth resources, and the demand for bandwidth will increase as the number of video channels accessed or broadcast increases. However, in actual use, there is generally an upper limit to the size of the network bandwidth provided to the video conferencing terminal. In addi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/15H04N7/24H04L12/56
Inventor 郭春辉熊模昌杜权胜刘晓露涂春勇戴磊
Owner SHANGHAI AVCON INFORMATION TECH
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