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Self-adaptive bandwidth transmitting and playing method based on audio and video frequency synchronization

A technology of audio and video synchronization and adaptive bandwidth, applied in image communication, selective content distribution, electrical components, etc., can solve the problems of unsatisfactory implementability of audio and video algorithms, wireless transmission without audio and video synchronization, video and image vases, etc. , to achieve the effects of improving operation and maintenance work efficiency, solving wireless bandwidth jitter, and flexible scalability

Active Publication Date: 2013-02-13
武汉众智数字技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. There are video image vases and mosaics at the wireless video receiving end;
[0006] 2. Wireless transmission generally does not have the function of audio and video synchronization, and the current audio and video algorithms are not ideally implementable

Method used

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  • Self-adaptive bandwidth transmitting and playing method based on audio and video frequency synchronization
  • Self-adaptive bandwidth transmitting and playing method based on audio and video frequency synchronization
  • Self-adaptive bandwidth transmitting and playing method based on audio and video frequency synchronization

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Embodiment Construction

[0040] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0041] 1. System

[0042] 1. Overall

[0043] Such as Figure 8 , the system includes a wireless video server 801, a video monitoring platform 802 and a display client 803;

[0044] The connection relationship is: the wireless video server 801, the video monitoring platform 802 and the display client 803 are connected in sequence.

[0045] Its working principle is: the main work of the wireless video server 801 is to complete the collection, encoding and transmission of audio and video signals;

[0046] 2. Functional components

[0047] 1) Wireless video server 801

[0048] Responsible for the collection, coding, transmission and signaling interaction of audio and video signals.

[0049] 2) Video surveillance platform 802

[0050] Responsible for signaling forwarding, media stream distribution, and video storage.

[0051] 3) show client 803

...

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Abstract

The invention discloses a self-adaptive bandwidth transmitting and playing method based on audio and video frequency synchronization, and relates to a video data transmission processing technology of a public mobile communication device. The method comprises the steps: generating a video stream data according to an H.264 coding; dynamically adjusting size of transmitted data quantity in real time according to the condition of current wireless bandwidth, transmitting the data to an outer network server via a wireless network; receiving and displaying audio and video data received by a client; creating an audio and video data buffer area, displaying and playing the video by a certain playing strategy according to the speed of receiving data quantity, and ensuring synchronization of the real-time video and audio frequency through an audio and video synchronization algorithm in an entire process. According to the method disclosed by the invention, operation and maintenance efficiency is improved; manpower cost is reduced; the video can be detected in real time; the problem of vibration of the wireless bandwidth is solved; the audio and video are synchronous, and the method has the advantages of strong generality, strong transportability and flexible expansibility.

Description

technical field [0001] The invention relates to a video data transmission processing technology of a public mobile communication device, in particular to an adaptive bandwidth transmission and playback method based on audio and video synchronization. Background technique [0002] With the rapid development of wireless communication technology, wireless Internet users are growing rapidly. The amount of wireless multimedia communication is increasing at a geometric progression rate. Compared with wired transmission, wireless transmission has the following obvious advantages: 1) low overall cost, no need for wiring, short installation period and convenient maintenance; 2) flexible networking and good scalability; 3) convenient transformation and low maintenance costs Low. Therefore, wireless multimedia communication is widely used in every aspect of military affairs, national defense and people's life. As we all know, video and audio are important components of multimedia da...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/236H04N21/434H04N21/8547H04N21/647H04N21/6437
Inventor 郑靖徐良平吴长树
Owner 武汉众智数字技术有限公司
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