| 基于USB2.0和DirectShow的视频采集系统 |
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| 引用本文： | 汪洋,闫达远.基于USB2.0和DirectShow的视频采集系统[J].光学技术,2005,31(4):486-488. |
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| 作者姓名： | 汪洋 闫达远 |
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| 作者单位： | 北京理工大学,信息科学技术学院光电工程系,北京,100081;北京理工大学,信息科学技术学院光电工程系,北京,100081 |
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| 摘 要： | 介绍了一种视频采集系统的总体设计方案、硬件结构、固件和软件结构的设计。通过对USB2.0协议和CY7C68013芯片的分析和研究,可编程接口(GPIF)能最大限度的发挥USB2.0的带宽,平均数据传输率为28Mbits/s,获得了无须压缩的高速单通道和多通道视频数据传输。通过利用USBMicroStudio高效开发USB驱动和采用WDM/Di rectShow架构,实现了视频的采集和存储。
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| 关 键 词： | 视频采集 USB2.0协议 GPIF DirectShow |
| 文章编号： | 1002-1582(2005)04-0486-03 |
| 修稿时间： | 2004年6月28日 |
Video capture system based on USB2.0 and DirectShow |
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| WANG Yang,YAN Da-yuan.Video capture system based on USB2.0 and DirectShow[J].Optical Technique,2005,31(4):486-488. |
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| Authors: | WANG Yang YAN Da-yuan |
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| Abstract: | The overall structure of the video capture system, the structure of hardware, firmware and software were introduced. Through the analysis and researching of USB2.0 Specification and the CY7C68013 chip developed by Cypress Company, GPIF (general programmable interface) was used to maximize the USB 2.0 bandwidth to transfer mass video data at the average rate of 28Mbits/s without compress. USB driver is developed by USB MicroStudio. A method of using WDM and DirectShow architecture is used to achieve the video capture and storage. |
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| Keywords: | video capture USB2 0 specification GPIF DirectShow |
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