关于BMP生成AVI压缩文件的有关问题

关于BMP生成AVI压缩文件的问题
这是下面的代码
  AVIFileInit();
  AVISTREAMINFO strhdr;
  PAVIFILE pfile;
  PAVISTREAM ps;
  PAVISTREAM psCompressed;
  int nFrames =0;
  HRESULT hr;
  AVICOMPRESSOPTIONS opts;
  AVICOMPRESSOPTIONS FAR * aopts[1] = {&opts};
  AnsiString str[4]={"e:\\贵H00006jcx.bmp","e:\\冀F00017jcx.bmp","e:\\冀G00011jcx.bmp","e:\\晋H00009jcx.bmp"};
  for(int i=0;i<4;i++)
  {
  FILE *fp = fopen(str[i].c_str(),"rb");
  BITMAPFILEHEADER bmpFileHdr;
  BITMAPINFOHEADER bmpInfoHdr;
  fseek( fp,0,SEEK_SET);
  fread(&bmpFileHdr,sizeof(BITMAPFILEHEADER),1, fp);
  fread(&bmpInfoHdr,sizeof(BITMAPINFOHEADER),1, fp);

  BYTE *tmp_buf = NULL;
  if(nFrames ==0 )
  {
  FILE *fp = fopen(str[i].c_str(),"rb");
  AVIFileOpen(&pfile,"E:\\123.avi",OF_WRITE | OF_CREATE,NULL);
  _fmemset(&strhdr, 0, sizeof(strhdr));
  strhdr.fccType = streamtypeVIDEO;// stream type
// strhdr.fccHandler = mmioFOURCC('x','v','i','d');
  strhdr.fccHandler = mmioFOURCC('M','S','V','C');

  strhdr.dwFlags ==AVICOMPRESSF_KEYFRAMES|AVICOMPRESSF_VALID;

  strhdr.dwScale = 1;
  strhdr.dwRate = 10; // 15 fps
  strhdr.dwSuggestedBufferSize = bmpInfoHdr.biSizeImage ;

  SetRect(&strhdr.rcFrame, 0, 0, bmpInfoHdr.biWidth, bmpInfoHdr.biHeight);
  hr = AVIFileCreateStream(pfile,&ps,&strhdr);

// hr = AVISaveOptions(Handle, ICMF_CHOOSE_KEYFRAME|ICMF_CHOOSE_DATARATE, 1, &ps, aopts);
  hr = AVISaveOptions(NULL, 0, 1, &ps, aopts);

  hr=AVIMakeCompressedStream(&psCompressed, ps,
  &opts, NULL);
  if(hr != 0)
  {
  Caption="comp make error";
  return;
  }


  hr = AVIStreamSetFormat(psCompressed,nFrames,&bmpInfoHdr,sizeof(bmpInfoHdr));
  if(hr != 0)
  {
  Caption="comp make error";
  return;
  }

  int i=0;
  i++;

  }
  tmp_buf = new BYTE[bmpInfoHdr.biWidth * bmpInfoHdr.biHeight * 3];
  fread(tmp_buf, 1, bmpInfoHdr.biWidth * bmpInfoHdr.biHeight * 3, fp);

  hr = AVIStreamWrite(psCompressed, // stream pointer
  nFrames , // time of this frame
  1, // number to write
  (LPBYTE) tmp_buf,
  bmpInfoHdr.biSizeImage , // size of this frame
  AVIIF_KEYFRAME, // flags....
  NULL,
  NULL);
  nFrames ++;
  fclose(fp);
  }
  AVIStreamClose(ps);
// AVIStreamClose(psCompressed);

  if(pfile != NULL)
  AVIFileRelease(pfile);
  AVIFileExit();

运行到AVIStreamSetFormat就反回不正确了，不清楚是为什么！
若不压缩的话，可以完成操作。

[解决办法]
问题出在：

C/C++ code

hr = AVISaveOptions(Handle, ICMF_CHOOSE_KEYFRAME|ICMF_CHOOSE_DATARATE, 1, &ps, aopts);//hr = AVISaveOptions(NULL, 0, 1, &ps, aopts);
[解决办法]
我把你的代码拷贝下来跑到hr = AVISaveOptions(NULL, 0, 1, &ps, aopts);
后就出问题了。问题是中断了。应该就是你跳过提示框造成的。 
 
恢复成hr = AVISaveOptions(Handle, ICMF_CHOOSE_KEYFRAME|ICMF_CHOOSE_DATARATE, 1, &ps, aopts);
来跑的话，不选择压缩条件，内存出错。