/// <summary>Move a number of frames into a temporary stream</summary>
/// <param name="start">First frame to cut</param>
/// <param name="length">Count of frames to cut</param>
/// <returns>Pointer to the unmanaged temporary stream</returns>
public IntPtr Cut(int start, int length)
{
IntPtr copyPointer = IntPtr.Zero;
int result = Avi.EditStreamCut(editableStream, ref start, ref length, ref copyPointer);
if (result != 0)
{
throw new Exception("Exception in Cut: " + result.ToString());
}
countFrames -= length;
return(copyPointer);
}