avi视频 及其压缩

#include<windows.h>
#include <vfw.h>
#pragma comment(lib,"vfw32.lib")

int main(int argc, char* argv[])
{
int m_ImageWidth , m_ImageHeight ;
int frames = 1 ;
m_ImageWidth = 100 ;
m_ImageHeight = 100 ;
char buffer[100*100*4] ;
memset(buffer,1,sizeof(buffer));

***IFileInit(); //初始化

P***IFILE pAviFile;
char fileName[]="a.avi" ;
P***ISTREAM pVideoStream;

if( ***IFileOpen(&pAviFile,fileName,OF_CREATE|OF_WRITE,NULL) )
{
MessageBox(NULL,"AviFileOpen error","error",MB_OK);
return 0;
}

***ISTREAMINFO aviStreamInfow;
memset(&aviStreamInfow,0,sizeof(aviStreamInfow));
aviStreamInfow.fccType = streamtypeVIDEO;
aviStreamInfow.dwRate = 1 ;
aviStreamInfow.dwScale = 1 ;
aviStreamInfow.dwSuggestedBufferSize = m_ImageHeight * m_ImageWidth *32 ;
aviStreamInfow.rcFrame.bottom = m_ImageHeight ;
aviStreamInfow.rcFrame.right = m_ImageWidth ;
strcpy(aviStreamInfow.szName,fileName);

***IFileCreateStream(pAviFile,&pVideoStream,&aviStreamInfow);



***ICOMPRESSOPTIONS options;
***ICOMPRESSOPTIONS * aoptions[1] = {&options};
memset(&options,0,sizeof(options));

// ***ISaveOptions(NULL,0,1,&pVideoStream,aoptions);
DWORD params = 75;
// char a[4];
// memcpy(a,&options.fccHandler,4);
options.fccType = ICTYPE_VIDEO ;
options.fccHandler = mmioFOURCC('i','v','4','1');//mmioFOURCC('i','v','4','1');
options.dwQuality = 2000;
options.dwFlags = 8 ;
options.lpParms = 0;
options.cbParms = 0 ;

P***ISTREAM pCompressedStream;
***IMakeCompressedStream(&pCompressedStream,pVideoStream,aoptions[0],NULL);

BITMAPINFOHEADER bmpInfoHeader;
memset(&bmpInfoHeader,0,sizeof(bmpInfoHeader));
bmpInfoHeader.biSize = sizeof(bmpInfoHeader);
bmpInfoHeader.biHeight = m_ImageHeight;
bmpInfoHeader.biWidth = m_ImageWidth ;
bmpInfoHeader.biBitCount = 32 ;
bmpInfoHeader.biCompression = BI_RGB ;
bmpInfoHeader.biPlanes = 1 ;

if(0 != ***IStreamSetFormat(pCompressedStream,0,&bmpInfoHeader,sizeof(bmpInfoHeader)))
{
MessageBox(NULL,"setformat","a;lsdkf",MB_OK);
return 0;
}

// ***IStreamSetFormat(pVideoStream,0,&bmpInfoHeader,sizeof(bmpInfoHeader));
for( int i = 0 ;i < 1000 ;i++)
{
// ***IStreamWrite(pVideoStream,frames*5,1,buffer,sizeof(buffer),***IIF_KEYFRAME,NULL,NULL);
***IStreamWrite(pCompressedStream,frames,1,buffer,sizeof(buffer),***IIF_KEYFRAME,NULL,NULL);
memset(buffer,i*20+50,sizeof(buffer));
frames++ ;
}
// pCompressedStream->Release();
if(pVideoStream)
{
pVideoStream->Release();
pVideoStream = NULL;
}
if(pAviFile)
{
***IFileClose(pAviFile);
pAviFile->Release();
pAviFile = NULL;
}

***IFileExit(); //释放库
return 0;
}

此中 options.fccHandler 的设定与视频的窗口的大小有很到的关系，如果比例失调，就回出现设定format时，出现非法访问，或者视频保存的文件大小是0，调试了一天了，才发现这个问题所在，郁闷啊。fccHandler的值的设定可以根据***ISaveOptions中获得的值fccHandler，然后转成一个4字符数组,就容易理解了。呵呵！

现在还不理解ICXX系列函数如何压缩视频的