读取视频的输入、输出流-read video input and output streams

用wmsdk写的asf文件异步读取的例子，可以应用与网络视频分发，接收，很好用！-Written by wmsdk asynchronous read asf file example can be applied to video and network distribution, reception, very good use!

基于directshow的视频处理开发，用于摄像头的读取和抓捕，是做视屏监控，学习directshow的好资料-Directshow video processing based on the development, for the camera to read and capture, is to do Screen Monitor, learning good information directshow

读取视频，并取出视频帧，进而对视频帧进行操作-Read video and remove the video frame, and thus the operation of video frames