explayer.java

J2ME手机游戏开发技术详解随书光盘

package exframework;

/**
 * <p>Title: ExFramework</p>
 *
 * <p>Description: lizhenpeng</p>
 *
 * <p>Copyright: Copyright (c) 2005</p>
 *
 * <p>Company: LP&P</p>
 *
 * @author lipeng
 * @version 1.0
 */
import javax.microedition.media.*;
import javax.microedition.media.control.*;
import java.io.*;
public class ExPlayer implements AllAction,PlayerListener
{
  public void playerUpdate(Player player,String event,Object eventData)
  {
    if(event==PlayerListener.END_OF_MEDIA)
    {
      try
      {
        player.start();
      }
      catch(Exception e)
      {
        System.out.println(e);
      }
    }
  }
  public ExPlayer()
  {
  }
  public void allAction(MainForm form)
  {
    /*
         String []contentType=Manager.getSupportedContentTypes(null);
         for(int i = 0;i<contentType.length;i++)
         {
      System.out.println(contentType[i]);
      String[] protocol = Manager.getSupportedProtocols(contentType[i]);
      for(int j= 0;j<protocol.length;j++)
      {
        System.out.print(protocol[j]+",");
      }
      System.out.println();
         }
    try
    {

//      Manager.playTone(100,1000,100);
      byte tempo=50; // set tempo to 120 bpm
      byte d=8; // eighth-note

      byte C4=ToneControl.C4;
      byte D4=(byte)(C4+2); // a whole step
      byte E4=(byte)(C4+4); // a major third
      byte G4=(byte)(C4+7); // a fifth
      byte rest=ToneControl.SILENCE; // rest

      byte[] mySequence=
      {
        ToneControl.VERSION,1, 			//设置版本号，当前必须设为1
        ToneControl.TEMPO,tempo,			//设置声音播放速度，值越大，播放越快
        ToneControl.SET_VOLUME,100,		//设置音量，值越大，音量越大
        ToneControl.BLOCK_START,0,		//预定义播放块，当前块号为0
        E4,d,D4,d,C4,d,E4,d,
        E4,d,E4,d,E4,d,rest,d,				//块的内容
        ToneControl.BLOCK_END,0, 		//块定义结束符
        ToneControl.PLAY_BLOCK,0, 		//播放当前块号为0的块，块号必须提前定义
        D4,d,D4,d,D4,d,rest,d,				//不使用块号方式播放的内容，必须位于块定义后面
      };

      Player p=Manager.createPlayer(Manager.TONE_DEVICE_LOCATOR);
      p.realize();
      //
      ToneControl c=(ToneControl)p.getControl("ToneControl");
      c.setSequence(mySequence);
      p.prefetch();
      p.start();
    }
    catch(Exception e)
    {
    }
    try
    {
      InputStream is=getClass().getResourceAsStream("/"+"Testsound.mid");
      Player player=Manager.createPlayer(is,"audio/midi");

      player.realize();
      player.prefetch();
      //System.out.println(player.getMediaTime());
      //System.out.println(player.getDuration());
      player.start();
      VolumeControl control=(VolumeControl)player.getControl("VolumeControl"); //获得控制接口，此接口的获得必须在获取播放信息或者获取播放设备后面，如果在它们前面，将会出现无法播放声音的情况
      if(control!=null) //必须检查是否为null，因为有些声音格式可能不支持音量控制
      {
        control.setLevel(5); //设置音量级别为50
//control.setMute(true);							//设置静音
      }


      //System.out.println(player.getMediaTime());
      //player.addPlayerListener(this);
    }
    catch(Exception e)
    {
      System.out.println(e);
    }  */

    LPAudioPlayer player = new LPAudioPlayer("Testsound.mid","audio/midi");
    //LPAudioPlayer player2 = new LPAudioPlayer("bg.mid","audio/midi",true);
    player.threadPlay();


  }
}