将Image图片保存为AVI文件
我用c#编写一个从网络摄像机上获取图像并保存为视频的程序时，通过摄像机的SDK里的ActiveX控件能获得的一个image对象，该iamge里有用Bitmap格式抓取的当前监控到的一帧视频图像，该图像可以用iamge的Save方法保存为一个bmp图片文件，现在我想把这个图像直接保存到一个AVI文件中（也就是把这一个一个返回的iamge图像直接做成一个AVI视频文件），向各位高手请教应该怎么做？

图片获取和保存为bmp文件的代码如下，保存是成功的。
 private int m_savecount= 0;
 private void save()
  {
  m_savecount = m_savecount + 1;
  Image m_objImage = this.axipropsapiCtrl1.GetBitmapImage();//axipropsapiCtrl1为SDK里的ActiveX控件
   
  m_objImage.Save("d:/" + m_savecount.ToString() + " .bmp");
   
  }

------解决方案--------------------
public void Close()
{
AVIStreamRelease(_ps);
AVIStreamRelease(_psCompressed);
AVIFileRelease(_pfile);
AVIFileExit();
}

//// <summary>
/// 创建流文件
/// </summary>
private bool CreateStream()
{
bool bReval = false;
AVISTREAMINFOW strhdr = new AVISTREAMINFOW();
strhdr.fccType = _fccType;
strhdr.fccHandler = _fccHandler;
strhdr.dwFlags = 0;
strhdr.dwCaps = 0;
strhdr.wPriority = 0;
strhdr.wLanguage = 0;
strhdr.dwScale = 1;
strhdr.dwRate = _frameRate;
strhdr.dwStart = 0;
strhdr.dwLength = 0;
strhdr.dwInitialFrames = 0;
strhdr.dwSuggestedBufferSize = _height * _stride;
strhdr.dwQuality = 0xffffffff;
strhdr.dwSampleSize = 0;
strhdr.rect_top = 0;
strhdr.rect_left = 0;
strhdr.rect_bottom = _height;
strhdr.rect_right = _width;
strhdr.dwEditCount = 0;
strhdr.dwFormatChangeCount = 0;
strhdr.szName0 = 0;
strhdr.szName1 = 0;
int hr = AVIFileCreateStream(_pfile, out _ps, ref strhdr);
if (hr != 0)
{
bReval = true;
throw new AviException("AVIFileCreateStream");
}
return bReval;
}

//// <summary>
/// 设置参数
/// </summary> 
unsafe private void SetOptions()
{
AVICOMPRESSOPTIONS opts = new AVICOMPRESSOPTIONS();
opts.fccType = _fccType;
opts.fccHandler = 0;
opts.dwKeyFrameEvery = 0;
opts.dwQuality = 0;
opts.dwFlags = 0;
opts.dwBytesPerSecond = 0;
opts.lpFormat = new IntPtr(0);
opts.cbFormat = 0;
opts.lpParms = new IntPtr(0);
opts.cbParms = 0;
opts.dwInterleaveEvery = 0;
AVICOMPRESSOPTIONS* p = &opts;
AVICOMPRESSOPTIONS** pp = &p;
IntPtr x = _ps;
IntPtr* ptr_ps = &x;
AVISaveOptions(0, 0, 1, ptr_ps, pp);
int hr = AVIMakeCompressedStream(out _psCompressed, _ps, ref opts, 0);
if (hr != 0)
{
throw new AviException("AVIMakeCompressedStream");
}

BITMAPINFOHEADER bi = new BITMAPINFOHEADER();
bi.biSize = 40;
bi.biWidth = (Int32)_width;
bi.biHeight = (Int32)_height;
bi.biPlanes = 1;
bi.biBitCount = 24;
bi.biCompression = 0;
bi.biSizeImage = _stride * _height;
bi.biXPelsPerMeter = 0;
bi.biYPelsPerMeter = 0;