| 基于DirectX的音频视频无线传输系统设计与实现 |
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| 引用本文： | 曹阳,梁华,蔡宣平.基于DirectX的音频视频无线传输系统设计与实现[J].现代电子技术,2007,30(15):1-3,7. |
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| 作者姓名： | 曹阳 梁华 蔡宣平 |
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| 作者单位： | 国防科学技术大学,电子科学与工程学院,湖南,长沙,410073 |
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| 摘 要： | 主要介绍一种基于微软DirectX平台实现音频视频无线传输的系统,该系统利用Direct Play Voice实现音频传输,利用DirectShow实现视频传输。针对音频传输过程中延时、抖动现象,利用RTP协议包头时间戳和建立缓冲池的方法进行消除,提高音质;利用RTP/RTCP协议传输MPEG-4码流,提高视频质量。探讨了该系统的基本结构和实现细节,实际测试表明该系统音频和视频质量令人满意,具有稳定性好、占用带宽低等优点。
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| 关 键 词： | 音视频无线传输 |
| 文章编号： | 1004-373X（2007）15-001-03 |
| 收稿时间： | 2007-05-22 |
| 修稿时间： | 2007-05-22 |
Design and Realization of Wireless Audio and Video Transmission System |
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| CAO Yang,LIANG Hua,CAI Xuanping.Design and Realization of Wireless Audio and Video Transmission System[J].Modern Electronic Technique,2007,30(15):1-3,7. |
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| Authors: | CAO Yang LIANG Hua CAI Xuanping |
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| Affiliation: | School of Electronic Science and Technology, National University of Defense Technology, Changsha, 410073, China |
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| Abstract: | The design and implemention of wireless audio and video transmission system is introduced,which contains two parts:wireless audio transmission based on directplay voice and wireless video transmission based on directshow.The time stamp of the RTP and the jitter buffer are used to restrain the voice jitter and delay,the RTP/RTCP is used to transport MPEG-4 bitstreams.Applications show that this system is implemented by the scheme not only present satisfactory reconstructed audio and video but also have good stability and utilize the network resources. |
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| Keywords: | DirectPaly Voice DirectShow RTP/RTCP MPEG-4 |
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