源代码：AVI操作的全部函数包，通过这个函数库基本上能够满足对AVI操作的要求！

/************************************************************************** * * THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY * KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR * PURPOSE. * * Copyright (C) 1992 - 1996 Microsoft Corporation. All Rights Reserved. * **************************************************************************/ /**************************************************************************** * * WRITEAVI.C * * Creates the file OUTPUT.AVI, an AVI file consisting of a rotating clock * face. This program demonstrates using the functions in AVIFILE.DLL * to make writing AVI files simple. * * This is a stripped-down example; a real application would have a user * interface and check for errors. * ***************************************************************************/ #include "stdafx.h" #include <windowsx.h> #include <memory.h> #include <mmsystem.h> #include <vfw.h> #include "writeavi.h" static HANDLE MakeDib( HBITMAP hbitmap, UINT bits ) { HANDLE hdib ; HDC hdc ; BITMAP bitmap ; UINT wLineLen ; DWORD dwSize ; DWORD wColSize ; LPBITMAPINFOHEADER lpbi ; LPBYTE lpBits ; GetObject(hbitmap,sizeof(BITMAP),&bitmap) ; // // DWORD align the width of the DIB // Figure out the size of the colour table // Calculate the size of the DIB // wLineLen = (bitmap.bmWidth*bits+31)/32 * 4; wColSize = sizeof(RGBQUAD)*((bits <= 8) ? 1<<bits : 0); dwSize = sizeof(BITMAPINFOHEADER) + wColSize + (DWORD)(UINT)wLineLen*(DWORD)(UINT)bitmap.bmHeight; // // Allocate room for a DIB and set the LPBI fields // hdib = GlobalAlloc(GHND,dwSize); if (!hdib) return hdib ; lpbi = (LPBITMAPINFOHEADER)GlobalLock(hdib) ; lpbi->biSize = sizeof(BITMAPINFOHEADER) ; lpbi->biWidth = bitmap.bmWidth ; lpbi->biHeight = bitmap.bmHeight ; lpbi->biPlanes = 1 ; lpbi->biBitCount = (WORD) bits ; lpbi->biCompression = BI_RGB ; lpbi->biSizeImage = dwSize - sizeof(BITMAPINFOHEADER) - wColSize ; lpbi->biXPelsPerMeter = 0 ; lpbi->biYPelsPerMeter = 0 ; lpbi->biClrUsed = (bits <= 8) ? 1<<bits : 0; lpbi->biClrImportant = 0 ; // // Get the bits from the bitmap and stuff them after the LPBI // lpBits = (LPBYTE)(lpbi+1)+wColSize ; hdc = CreateCompatibleDC(NULL) ; GetDIBits(hdc,hbitmap,0,bitmap.bmHeight,lpBits,(LPBITMAPINFO)lpbi, DIB_RGB_COLORS); // Fix this if GetDIBits messed it up.... lpbi->biClrUsed = (bits <= 8) ? 1<<bits : 0; DeleteDC(hdc) ; GlobalUnlock(hdib); return hdib ; } CAVIFile::CAVIFile(LPCTSTR lpszFileName, int xdim, int ydim) : FName(lpszFileName), xDim(xdim), yDim(ydim), bOK(true), nFrames(0) { pfile = NULL; ps = NULL; psCompressed = NULL; psText = NULL; aopts[0] = &opts; WORD wVer = HIWORD(VideoForWindowsVersion()); if (wVer < 0x010A) { // oops, we are too old, blow out of here bOK = false; } else { AVIFileInit(); } } CAVIFile::~CAVIFile() { if (ps) AVIStreamClose(ps); if (psCompressed) AVIStreamClose(psCompressed); if (psText) AVIStreamClose(psText); if (pfile) AVIFileClose(pfile); WORD wVer = HIWORD(VideoForWindowsVersion()); if (wVer >= 0x010A) { AVIFileExit(); } } bool CAVIFile::AddFrame(CBitmap& bmp) { HRESULT hr; char szMessage[BUFSIZE]; if (!bOK) return false; LPBITMAPINFOHEADER alpbi = (LPBITMAPINFOHEADER)GlobalLock(MakeDib(bmp, 8)); if (alpbi == NULL) return false; if (xDim>=0 && xDim != alpbi->biWidth) { GlobalFreePtr(alpbi); return false; } if (yDim>=0 && yDim != alpbi->biHeight) { GlobalFreePtr(alpbi); return false; } xDim = alpbi->biWidth; yDim = alpbi->biHeight; if (nFrames == 0) { hr = AVIFileOpen(&pfile, // returned file pointer FName, // file name OF_WRITE | OF_CREATE, // mode to open file with NULL); // use handler determined // from file extension.... if (hr != AVIERR_OK) { GlobalFreePtr(alpbi); bOK = false; return false; } _fmemset(&strhdr, 0, sizeof(strhdr)); strhdr.fccType = streamtypeVIDEO;// stream type strhdr.fccHandler = 0; strhdr.dwScale = 1; strhdr.dwRate = 15; // 15 fps strhdr.dwSuggestedBufferSize = alpbi->biSizeImage; SetRect(&strhdr.rcFrame, 0, 0, // rectangle for stream (int) alpbi->biWidth, (int) alpbi->biHeight); // And create the stream; hr = AVIFileCreateStream(pfile, // file pointer &ps, // returned stream pointer &strhdr); // stream header if (hr != AVIERR_OK) { GlobalFreePtr(alpbi); bOK = false; return false; } _fmemset(&opts, 0, sizeof(opts)); if (!AVISaveOptions(NULL, 0, 1, &ps, (LPAVICOMPRESSOPTIONS FAR *) &aopts)) { GlobalFreePtr(alpbi); bOK = false; return false; } hr = AVIMakeCompressedStream(&psCompressed, ps, &opts, NULL); if (hr != AVIERR_OK) { GlobalFreePtr(alpbi); bOK = false; return false; } hr = AVIStreamSetFormat(psCompressed, 0, alpbi, // stream format alpbi->biSize + // format size alpbi->biClrUsed * sizeof(RGBQUAD)); if (hr != AVIERR_OK) { GlobalFreePtr(alpbi); bOK = false; return false; } // Fill in the stream header for the text stream.... // The text stream is in 60ths of a second.... /* _fmemset(&strhdr, 0, sizeof(strhdr)); strhdr.fccType = streamtypeTEXT; strhdr.fccHandler = mmioFOURCC('D', 'R', 'A', 'W'); strhdr.dwScale = 1; strhdr.dwRate = 60; strhdr.dwSuggestedBufferSize = sizeof(szText); SetRect(&strhdr.rcFrame, 0, (int) alpbi->biHeight, (int) alpbi->biWidth, (int) alpbi->biHeight + TEXT_HEIGHT); // ....and create the stream. hr = AVIFileCreateStream(pfile, &psText, &strhdr); if (hr != AVIERR_OK) { GlobalFreePtr(alpbi); bOK = false; return false; } dwTextFormat = sizeof(dwTextFormat); hr = AVIStreamSetFormat(psText, 0, &dwTextFormat, sizeof(dwTextFormat)); if (hr != AVIERR_OK) { GlobalFreePtr(alpbi); bOK = false; return false; } */ } // Jetzt eigentliches Schreiben hr = AVIStreamWrite(psCompressed, // stream pointer nFrames * 10, // time of this frame 1, // number to write (LPBYTE) alpbi + // pointer to data alpbi->biSize + alpbi->biClrUsed * sizeof(RGBQUAD), alpbi->biSizeImage, // size of this frame AVIIF_KEYFRAME, // flags.... NULL, NULL); if (hr != AVIERR_OK) { GlobalFreePtr(alpbi); bOK = false; return false; } // Make some text to put in the file ... //LoadString(hInstance, IDS_TEXTFORMAT, szMessage, BUFSIZE ); /* strcpy(szMessage, "This is frame #%d"); int iLen = wsprintf(szText, szMessage, (int)(nFrames + 1)); // ... and write it as well. hr = AVIStreamWrite(psText, nFrames * 40, 1, szText, iLen + 1, AVIIF_KEYFRAME, NULL, NULL); if (hr != AVIERR_OK) { GlobalFreePtr(alpbi); bOK = false; return false; } */ GlobalFreePtr(alpbi); nFrames++; return true; }