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Fast transmission and synchronization conference audio-visual system and control method thereof

An audio-visual system and fast transmission technology, applied in transmission systems, video conference systems, two-way working systems, etc., can solve the problems of asynchronous video and audio playback, low video transmission rate, poor playback fluency, etc. User experience, the effect of solving fluency, and fast transmission rate

Inactive Publication Date: 2019-02-19
GUANGZHOU BAOLUN ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, it is necessary to address the above-mentioned problems and propose a fast transmission and synchronous conference audio-visual system and its control method to solve the problem of low video transmission rate and playback problems when the conference audio-visual system in the above-mentioned background technology transmits high-definition video. The problem of poor fluency, and the problem of out-of-sync video and audio playback in the conference audio-visual system

Method used

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  • Fast transmission and synchronization conference audio-visual system and control method thereof
  • Fast transmission and synchronization conference audio-visual system and control method thereof
  • Fast transmission and synchronization conference audio-visual system and control method thereof

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Experimental program
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Embodiment 1

[0056] Such as figure 1 As shown, a fast transmission and synchronous conference audio-visual system is applied to the C / S computer architecture. The C / S computer architecture includes a co-screen originating terminal 1, a streaming media forwarding server 2 and at least one co-screen receiving terminal 3. The conference audio-visual system includes a collection module 11, an encoding module 12, a network streaming module 13, a time stamp checking module 21, a checking cycle timing module 22, at least one receiving terminal decoding module 31, at least one receiving terminal video and audio synchronization Processing module 32 and at least one receiving end rendering processing module 33; the acquisition module 11, encoding module 12 and network streaming module 13 are all installed in the same screen initiating terminal 1; each same screen receiving terminal 3 is equipped with a receiving end Decoding module 31, a receiving end video and audio synchronization processing modul...

Embodiment 2

[0084] Embodiment 2 is the further optimization of embodiment 1;

[0085] Such as figure 1 , Figure 4 As shown, a control method of a fast transmission and synchronous conference audio-visual system includes the following steps:

[0086] S1, the collection module 11 collects the video information and audio information of the same-screen initiating terminal 1, and transmits the collected video information and audio information to the encoding module 12;

[0087] S2, the encoding module 12 encodes the received video information and audio information, and transmits the encoded video information and audio information to the network streaming module 13;

[0088] S3, the network streaming module 13 timestamps the encoded video information and audio information, and transmits the video information with a video timestamp and the audio information with an audio timestamp through the streaming media forwarding server 2 Push to each of the receiver decoding modules 31;

[0089] S4, ...

Embodiment 3

[0097] Embodiment 3 is the further optimization of embodiment 1;

[0098] Such as figure 1 , figure 2 , image 3 , Figure 6 , Figure 7 As shown, a fast transmission and synchronous conference audio-visual system adopts the C / S software design mode for architecture and development. terminal 2 and receiving terminal 3 on the same screen;

[0099] Among them, the same screen initiating terminal 1 includes the following functional modules:

[0100] 1. The screen acquisition sub-module 111 is used to capture and screenshot the picture of the same-screen initiating terminal 1, collect video raw data and pass it to the video encoding module 121; what the screen acquisition sub-module 111 is responsible for collecting is the original video data in YUV420 format , then put the original video data in YUV420 format into the video pixel queue, and wait for the X264 encoding module to take the video pixel data and perform X264 encoding;

[0101] 2. The sound card acquisition sub-...

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Abstract

The invention relates to the technical field of streaming media control, and specifically discloses a fast transmission and synchronization conference audio-visual system applied to C / S computer architecture, the C / S computer architecture comprises a same-screen initiation terminal, a streaming media forwarding server and at least one same-screen receiving terminal, and the conference audio-visualsystem comprises a collection module, an encoding module, a network stream push module, a timestamp check module, a check cycle timing module, at least one receiving end decoding module, at least onereceiving end video and audio synchronization processing module, and at least one receiving end rendering processing module. The invention further discloses a control method of the fast transmissionand synchronization conference audio-visual system, comprising S1-S5: S1, information collection of the encoding module; S2, encoding processing; S3, timestamp marking; S4, decoding processing; and S5, rendering display and rendering playing. By adoption of the fast transmission and synchronization conference audio-visual system provided by the invention, the video transmission rate and the smoothness of video playing are improved, and the video and audio playing is more synchronous.

Description

technical field [0001] The invention relates to the technical field of streaming media control, in particular to a fast transmission and synchronous conference audio-visual system and a control method thereof. Background technique [0002] As audio and video technology and network communication technology become more and more mature, the demand for video in office conference information is also increasing, and it has become an important part of the entire conference service system. Conference video is an important part of office conferences. Various large or small meetings often use high-definition video playback, and the quality requirements for conference videos are getting higher and higher. [0003] With the popularization of 2K high-definition video (1920*1080 resolution) and 2K high-definition resolution displays, it provides an effective basic guarantee for the audio-visual system of the conference to realize the video effect of high-definition visual experience. How...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/43H04N21/439H04N21/44H04N19/70H04N7/15H04L29/06
CPCH04L65/403H04N7/15H04N19/70H04N21/4307H04N21/439H04N21/44H04L65/75
Inventor 赵定金朱正辉张常华明德
Owner GUANGZHOU BAOLUN ELECTRONICS CO LTD
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