说明：  H264rmheader介绍处理h264及mp4文件头的代码程序,在实际工作中会遇到要比对mp4文件组织结构的时候,这样可以验证采集编码的h264码流是否正确.
(H264rmheader introduces H264 and MP4 file header code, in practical work encountered when compared to the MP4 file structure, which can verify the acquisition and code H264 code is correct.)