private Avi.AVISTREAMINFO GetStreamInfo(IntPtr aviStream)
{
Avi.AVISTREAMINFO streamInfo = new Avi.AVISTREAMINFO();
int result = Avi.AVIStreamInfo(StreamPointer, ref streamInfo, Marshal.SizeOf(streamInfo));
if(result != 0) {
throw new Exception("Exception in VideoStreamInfo: "+result.ToString());
}
return streamInfo;
}
/// <summary>Create a new stream</summary>
private void CreateStreamWithoutFormat()
{
int scale = 1;
double rate = frameRate;
GetRateAndScale(ref rate, ref scale);
Avi.AVISTREAMINFO strhdr = new Avi.AVISTREAMINFO();
strhdr.fccType = Avi.mmioStringToFOURCC("vids", 0);
strhdr.fccHandler = Avi.mmioStringToFOURCC("CVID", 0);
strhdr.dwFlags = 0;
strhdr.dwCaps = 0;
strhdr.wPriority = 0;
strhdr.wLanguage = 0;
strhdr.dwScale = (int)scale;
strhdr.dwRate = (int)rate; // Frames per Second
strhdr.dwStart = 0;
strhdr.dwLength = 0;
strhdr.dwInitialFrames = 0;
strhdr.dwSuggestedBufferSize = frameSize; //height_ * stride_;
strhdr.dwQuality = -1; //default
strhdr.dwSampleSize = 0;
strhdr.rcFrame.top = 0;
strhdr.rcFrame.left = 0;
strhdr.rcFrame.bottom = (uint)height;
strhdr.rcFrame.right = (uint)width;
strhdr.dwEditCount = 0;
strhdr.dwFormatChangeCount = 0;
strhdr.szName = new UInt16[64];
int result = Avi.AVIFileCreateStream(aviFile, out aviStream, ref strhdr);
if (result != 0) {
throw new Exception("Exception in AVIFileCreateStream: " + result.ToString());
}
}