图像的读取代码，把图像读取到内存，在从内存中肚带硬盘上（没有写）！王永-read code image, the image read to memory, from memory choice on your hard disk (or not)! Wang Yong

演示保存一幅BMP文件到指定目录。 利用CGSnapShot抓取一帧图像到内存，然后直接从内存读取图像数据，保存数据到BMP文件。图像的大小由视频输出窗口和视频格式确定。-demonstration preserve a BMP file to the specified directory. CGSnapShot crawls using an image to memory, then read directly from the image data memory, preservat

基于V4L的视频抓图程序，其中包含直接读取内存和地址映射两种读取摄像头采集的视频数据的方法。-Based on the video capture V4L program, which includes direct reading memory and address mapping of two cameras capture the video read the data.