本文選題：AVS音視頻通信 + RTP/RTCP協(xié)議　； 參考：《電子科技大學(xué)》2013年碩士論文

【摘要】：隨著網(wǎng)絡(luò)和多媒體技術(shù)的發(fā)展,IP(Internet Protocol)網(wǎng)絡(luò)上的音視頻通信技術(shù)(簡(jiǎn)稱(chēng)VoIP:Voice over Internet Protocol)被廣泛應(yīng)用到即時(shí)通信、視頻會(huì)議等產(chǎn)品中。音視頻通信技術(shù)涵蓋了音視頻編碼、流媒體傳輸、通信控制等諸多方面的內(nèi)容。AVS(Audio Video Standard)是我國(guó)頒布具備獨(dú)立自主知識(shí)產(chǎn)權(quán)的第二代信源編碼標(biāo)準(zhǔn)。本文主要討論基于AVS視頻編碼標(biāo)準(zhǔn)的音視頻通信系統(tǒng)的框架設(shè)計(jì)及客戶(hù)端、服務(wù)器端的功能設(shè)計(jì)和通訊流程的實(shí)現(xiàn)。首先,論文介紹了流媒體傳輸和同步控制的相關(guān)理論,重點(diǎn)討論了實(shí)時(shí)傳輸協(xié)議(RTP:Real-time Tranport Protocol)和實(shí)時(shí)流傳輸控制協(xié)議(RTCP:Real-time Transport Control Protocol)、實(shí)時(shí)流傳輸協(xié)議(RTSP:Real-time Transport Steaming Protocol)的實(shí)現(xiàn)。通過(guò)利用RTCP協(xié)議提供的控制信息,設(shè)計(jì)了音頻媒體和視頻媒體之間的同步控制算法。在實(shí)現(xiàn)RTP/RTCP協(xié)議的基礎(chǔ)上,不但很好地控制了音視頻數(shù)據(jù)的實(shí)時(shí)傳輸,而且達(dá)到了音視頻媒體的流內(nèi)同步和流間同步的控制效果。其次,論文針對(duì)視頻會(huì)議等方面的需求研究了AVSIM(Audio Video Standard Intant Messager)視頻通信功能的架構(gòu),實(shí)現(xiàn)了視頻通信控制協(xié)議的定義,并通過(guò)統(tǒng)一建模語(yǔ)言(UML:Unified Modeling Language)剖析了會(huì)議模塊的功能設(shè)計(jì)。最后,論文討論了NAT(Network Address Translation)穿越的分類(lèi)以及NAT技術(shù)的原理以及實(shí)現(xiàn),比較了STUN(Simple Traversal of UDP over NATs)穿越、TURN(Traversal Using Relays around NAT)穿越、UPnP(Universal Plug and Play)穿越、TCP/UDP (Transmission Control Protocol/User Datagram Protocol)打洞穿越、HTTP(Hypertext transfer protocol) Tunnel穿越以及客戶(hù)端NAT模塊的工作流程。同時(shí)闡述了整體系統(tǒng)的軟件實(shí)現(xiàn)和測(cè)試分析,并對(duì)當(dāng)前的工作進(jìn)行了總結(jié)和展望。
[Abstract]:With the development of network and multimedia technology, audio and video communication technology (VoIP:Voice over Internet Protocol) on IP (Internet Protocol) network is widely used in instant communications, video conferencing and other products. Audio and video communication technology covers audio video coding, streaming media transmission, communication control and many other aspects of.AVS (Audio). Video Standard) is the second generation of source code standard which has independent intellectual property rights in China. This paper mainly discusses the frame design of audio and video communication system based on AVS video coding standard, the client, the function design of the server and the realization of the communication process. First, the phase of streaming media transmission and synchronous control is introduced in this paper. According to the theory, the real time transmission protocol (RTP:Real-time Tranport Protocol) and the real-time flow transmission control protocol (RTCP:Real-time Transport Control Protocol), the realization of the real time flow transmission protocol (RTSP:Real-time Transport Steaming Protocol) are implemented. The audio media and video are designed by using the control information provided by the RTCP protocol. The synchronization control algorithm between the media, based on the implementation of the RTP/RTCP protocol, not only controls the real-time transmission of audio and video data, but also achieves the control effect of intra streaming synchronization and inter flow synchronization in audio and video media. Secondly, the paper studies AVSIM (Audio Video Standard Intant Messag) for video conferencing and other aspects. Er) the architecture of video communication function, the definition of the video communication control protocol is realized, and the function design of the conference module is analyzed through the unified modeling language (UML:Unified Modeling Language). Finally, the paper discusses the classification of the NAT (Network Address Translation) crossing and the principle and implementation of NAT technology, and compares STUN (Simple Tra). Versal of UDP over NATs) traversing, TURN (Traversal Using Relays around NAT) crossing. The software implementation and test analysis are summarized, and the current work is summarized and prospected.

【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類(lèi)號(hào)】：TN912.3

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本文編號(hào)：1789968