Backup/vfw/AVIWriter.cs

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

	/// <summary>
	/// Writing AVI files using Video for Windows
	/// 
	/// Note: I am stucked with non even frame width. AVIs with non even
	/// width are playing well in WMP, but not in BSPlayer (it's for "DIB " codec).
	/// Some other codecs does not work with non even width or height at all.
	/// 
	/// </summary>
	public class AVIWriter : IDisposable
	{
		private IntPtr	file;
		private IntPtr	stream;
		private IntPtr	streamCompressed;
		private IntPtr	buf = IntPtr.Zero;

		private int		width;
		private int		height;
		private int		stride;
		private string	codec = "DIB ";
		private int		quality = -1;
		private int		rate = 25;
		private int		position;

		// CurrentPosition property
		public int CurrentPosition
		{
			get { return position; }
		}
		// Width property
		public int Width
		{
			get
			{
				return (buf != IntPtr.Zero) ? width : 0;
			}
		}
		// Height property
		public int Height
		{
			get
			{
				return (buf != IntPtr.Zero) ? height : 0;
			}
		}
		// Codec property
		public string Codec
		{
			get { return codec; }
			set { codec = value; }
		}
		// Quality property
		public int Quality
		{