| H.264实时视频通信终端的研究与实现 |
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| 引用本文： | 尹超超,龙昭华,谢显中.H.264实时视频通信终端的研究与实现[J].电视技术,2011,35(3):53-56. |
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| 作者姓名： | 尹超超 龙昭华 谢显中 |
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| 作者单位： | 重庆邮电大学移动通信重点实验室; |
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| 基金项目： | 国家质检总局公益性行业科研专项经费项目(10-226); 重庆市科技攻关基金资助项目(CSTC,2007AC2053) |
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| 摘 要： | 针对现有视频通信系统中存在的实时性、软终端与硬终端通信速率不对称等问题,通过分析H.264编码标准以及RTP/RTCP和SIP协议,采用开源FFMPEG设计并实现了视频通信软终端,与自行设计的i.MX27终端进行集成通信.详细介绍了终端的结构以及各主要模块,提出了采样预处理、NALU封装与流量控制、内存分配等关键技术....
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| 关 键 词： | 视频通信 RTP/RTCP H.264标准 SIP i.MX27 |
Research and Implementation of Real-time Video Communication Terminal Based on H.264 |
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| YIN Chaochao,LONG Zhaohua,XIE Xianzhong.Research and Implementation of Real-time Video Communication Terminal Based on H.264[J].Tv Engineering,2011,35(3):53-56. |
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| Authors: | YIN Chaochao LONG Zhaohua XIE Xianzhong |
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| Institution: | YIN Chaochao,LONG Zhaohua,XIE Xianzhong(Key Lab of Mobile Communication Technology,Chongqing University of Posts and Telecommunications,Chongqing 400065,China) |
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| Abstract: | In connection with existing problems of current video communication systems,such as real-time property and asymmetrical communication speed between soft terminal and hardware terminal.The soft terminal using open source FFMPEG by analyzing the H.264 coding standard,RTP/RTCP and SIP protocol are designed and implemented.Then,the self-designed terminals based on i.MX27 platform is integrated.In this paper,structure and major modules of the terminal are expatiated.Meanwhile,some critical technologies such as s... |
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| Keywords: | video communication RTP/RTCP H 264 SIP i MX27 |
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