#include "vfw.h"#pragma comment(lib, "vfw32.lib")
#pragma comment(lib, "Winmm.lib")AVIFileInit();PAVIFILE pAviFile = nullptr;// 打开AVI文件 int nRet = AVIFileOpen(&pAviFile, "10.82.27.20_00_201908231542_part0.avi", OF_READ, NULL);if (nRet == 0){// 读取AVI文件的信息AVIFILEINFO aviFileInfo = { 0 };AVIFileInfo(pAviFile, &aviFileInfo, sizeof(AVIFILEINFO));// 提取出AVI文件的某种流，此例为视频流PAVISTREAM pAviStrem = nullptr;AVIFileGetStream(pAviFile, &pAviStrem, streamtypeVIDEO, 0);// 读取流信息AVISTREAMINFO aviStreamInfo = { 0 };AVIStreamInfo(pAviStrem, &aviStreamInfo, sizeof(AVISTREAMINFO));/*// type 为流格式（音频或视频），handler为压缩方法：如H264char handler[4],type[4];handler[0] = stinfo.fccHandler;handler[1] = stinfo.fccHandler >> 8;handler[2] = stinfo.fccHandler >> 16;handler[3] = stinfo.fccHandler >> 24;type[0] = stinfo.fccType;type[1] = stinfo.fccType >> 8;type[2] = stinfo.fccType >> 16;type[3] = stinfo.fccType >> 24;//如果是压缩的视频（一般都是压缩的），打开读取压缩桢的函数PGETFRAME pGetFrame = AVIStreamGetFrameOpen(pAviStrem, NULL);//返回解压缩后，图像的信息LPBITMAPINFOHEADER lpbm = (LPBITMAPINFOHEADER)AVIStreamGetFrame(pGetFrame, 1);//读入并解压缩视频的每一帧for (int i = 0; i < aviFileInfo.dwLength; i++){memcpy(RGBbuf,(BYTE*)AVIStreamGetFrame(pgf,i)+40,pfi.dwWidth*pfi.dwHeight*3);}//关闭读取压缩桢的函数AVIStreamGetFrameClose(pGetFrame);*/char* szBuf = new char[500 * 1024];memset(szBuf, 0, 500 * 1024);const int headerSize = sizeof(CMD_HEADER) + sizeof(AV_VIDEO_INFO);while (!m_bExit){for (int i = 0; i < aviFileInfo.dwLength; i++){// 获取编码前数据AVIStreamRead(pAviStrem, i, 1, szBuf + headerSize, 500 * 1024 - headerSize, NULL, NULL);}}//释放AVI文件指针AVIFileRelease(pAviFile);}AVIFileExit();