| 视频采集系统软件设计 |
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| 引用本文： | 魏铮,胡瑞敏,艾浩军,易本顺.视频采集系统软件设计[J].计算机工程与应用,2003,39(31):136-139. |
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| 作者姓名： | 魏铮 胡瑞敏 艾浩军 易本顺 |
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| 作者单位： | 武汉大学多媒体网络通信工程湖北省重点实验室,武汉,430079 |
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| 摘 要： | 该文介绍了Bt848卡的主要结构和工作原理,并详细描述了集成到可以实现上网和多媒体通信双重功能的IS-DN卡上的Bt848芯片驱动程序的实现,包括分配DMA内存区,分配视频缓冲区,以及视频数据在芯片和PC机内存之间的流动过程,并给出了具体的实现方法。
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| 关 键 词： | Bt848 视频采集 DMA WDM |
| 文章编号： | 1002-8331-(2003)31-0136-04 |
| 修稿时间： | 2002年12月1日 |
Design and Realization of Bt848 Video Capture Driver Program |
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| Wei Zheng Hu,Ruimin Ai,Haojun Yi,Benshun.Design and Realization of Bt848 Video Capture Driver Program[J].Computer Engineering and Applications,2003,39(31):136-139. |
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| Authors: | Wei Zheng Hu Ruimin Ai Haojun Yi Benshun |
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| Abstract: | In this paper,the architecture and character of Bt848are analyzed,and the core technology of implementing the driver of Bt848video capture,which is integrated in an ISDN adapter card with two functions of browsing the In-ternet and multimedia communication is discussed.Some techniques employed such as allocating DMA memory,allotting video buffer and sharing the video data between the Bt848chip and computer memory are described in detail.Finally the implementation of WDM driver is presented. |
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| Keywords: | Bt848 Video Capture DMA WDM |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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