protected AviInterop.StreamInfo GetStreamInfo()
{
var streamInfo = new AviInterop.StreamInfo();
uint result = AviInterop.AVIStreamInfo(StreamPointer, ref streamInfo,
Marshal.SizeOf(streamInfo));
if (result != 0)
throw new Exception("Exception in VideoStreamInfo: " + AviErrors.GetError(result));
return streamInfo;
}
protected AviInterop.StreamInfo GetStreamInfo()
{
var streamInfo = new AviInterop.StreamInfo();
uint result = AviInterop.AVIStreamInfo(StreamPointer, ref streamInfo,
Marshal.SizeOf(streamInfo));
if (result != 0)
{
throw new Exception("Exception in VideoStreamInfo: " + AviErrors.GetError(result));
}
return(streamInfo);
}
public VideoStream(int filePtr, IntPtr streamPtr)
: base(filePtr, streamPtr)
{
var bih = new AviInterop.BitmapInfoHeader();
int size = Marshal.SizeOf(bih);
AviInterop.AVIStreamReadFormat(StreamPointer, 0, ref bih, ref size);
AviInterop.StreamInfo streamInfo = GetStreamInfo();
FrameRate = streamInfo.dwRate / (float)streamInfo.dwScale;
Width = streamInfo.rcFrame.right;
Height = streamInfo.rcFrame.bottom;
FrameSize = bih.biSizeImage;
CountBitsPerPixel = CalculateBitsPerPixel(bih.biBitCount);
FirstFrame = AviInterop.AVIStreamStart(StreamPointer);
CountFrames = AviInterop.AVIStreamLength(StreamPointer);
}