//Author: John T. Rine
//05-02-2011
import java.io.*;

public class orca_Protocol
{
	public static void main(String[] args) throws IOException
	{
		FileInputStream in = null;
		try
		{
			System.out.print("Enter filename: ");
			BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
			String fileName = null;
			fileName = br.readLine();
			in = new FileInputStream(fileName);
			int c;
			StringBuffer strContent = new StringBuffer();
			int count = 0;
			while (count != 4)
			{
				c = in.read();
				strContent.append((char)c);
				count++;
			}
			System.out.println(strContent);
			String temp = strContent.toString();
			if(temp.equals("MThd")) System.out.println("Midi Header");
			long dummy = 0;
			c = 0;
			int shift = 0;
			long result = 0;
			for (int i = 0; i != 4; i++)
			{
				c = in.read();
				dummy = 0;
				dummy = (long) c;
				switch(i)
				{
					case 0:
						shift = 24;
						break;
					case 1:
						shift = 16;
						break;
					case 2:
						shift = 8;
						break;
					case 3:
						shift = 0;
						break;
				}
				dummy = dummy << shift;
				result = result | dummy;
			}
			System.out.println("Header Length = " + result);
			c = 0;
			shift = 0;
			int resultt = 0;
			for (int i = 0; i != 2; i++)
			{
				c = in.read();
				switch(i)
				{
					case 0:
						shift = 8;
						break;
					case 1:
						shift = 0;
						break;
				}
				c = c << shift;
				resultt = resultt | c;
			}
			String fileType;
			switch(c)
			{
				case 0:
					fileType = "single track file format";
					break;
				case 1:
					fileType = "multiple track file format";
					break;
				case 2:
					fileType = "multiple song file format (i.e., a series of type 0 files)"; 
					break;
				default:
					fileType = "Error";

			}
			System.out.println("Midi File Type = " + c + " " + "File Type: " + fileType);
			c = 0;
			shift = 0;
			resultt = 0;
			for (int i = 0; i != 2; i++)
			{
				c = in.read();
				switch(i)
				{
					case 0:
						shift = 8;
						break;
					case 1:
						shift = 0;
						break;
				}
				c = c << shift;
				resultt = resultt | c;
			}
			System.out.println("Number of track chunks that follow the header chunk  = " + c);
			c = 0;
			shift = 0;
			resultt = 0;
			for (int i = 0; i != 2; i++)
			{
				c = in.read();
				switch(i)
				{
					case 0:
						shift = 8;
						break;
					case 1:
						shift = 0;
						break;
				}
				c = c << shift;
				resultt = resultt | c;
			}
			System.out.println("Division  = " + c);
			System.out.println("Unit of time for delta timing.");
			System.out.println("If the value is positive, then it represents the units per beat.");
			System.out.println("For example, +96 would mean 96 ticks per beat.");
			System.out.println("If the value is negative, delta times are in SMPTE compatible units."); 
		}
		finally
		{
			if (in != null)
			{
				in.close();
			}
		}
	}

}