Backup/vfw/AVIReader.cs

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namespace Tiger.Video.VFW
{
	using System;
	using System.Drawing;
	using System.Drawing.Imaging;
	using System.Runtime.InteropServices;

	/// <summary>
	/// Reading AVI files using Video for Windows
	/// </summary>
	public class AVIReader : IDisposable
	{
		private IntPtr	file;
		private IntPtr	stream;
		private IntPtr	getFrame;

		private int		width;
		private int		height;
		private int		position;
		private int		start;
		private int		length;
		private float	rate;
		private string	codec;

		// Width property
		public int Width
		{
			get { return width; }
		}
		// Height property
		public int Height
		{
			get { return height; }
		}
		// FramesRate property
		public float FrameRate
		{
			get { return rate; }
		}
		// CurrentPosition property
		public int CurrentPosition
		{
			get { return position; }
			set
			{
				if ((value < start) || (value >= start + length))
					position = start;
				else
					position = value;
			}
		}
		// Length property
		public int Length
		{
			get { return length; }
		}
		// Codec property
		public string Codec
		{
			get { return codec; }