基于DirectShow的多媒体流捕获  

Multimedia Stream Capture Based on DirectShow

作　　者：武兆雪[1] 夏靖波[1] 

机构地区：[1]空军工程大学,陕西西安710077

出　　处：《中国有线电视》2006年第1期34-37,共4页China Digital Cable TV

摘　　要：D irectShow基于COM技术,为在W indows平台上进行流媒体处理提供有力支持。阐述了D i-rectShow的基本原理,讨论了利用V isual C++实现基于D irectShow的多媒体流捕获的关键技术,对捕获实现的开发方法和编程过程做出说明,并给出核心代码。在此基础上实现的捕获系统,相对于传统的基于设备SDK和VFW捕获,具有更好的可重用性和可扩展性。Being an architecture based on Component Object Model （COM）, DirectShow provides an effective and efficient approach for multimedia processing in windows. After the main principle of DirectShow is introduced, the key technique for capturing multimedia stream based on DirectShow using Visual C ＋ ＋ are discussed, and the development method and programming course about capturing are presented. The results show that the capturing system based on DirectShow has better reusability and extensibility than that based on the conventional SDK （Software Development Kit） provided by hardware equipment manufacturer or VFW （Video for Windows） capturing.

关 键 词：DIRECTSHOW 多媒体流 视频捕获 音频捕获 过滤器 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]