Oops! JMF Quick Start

Oops! JMF Quick Start

Oops! JMF Quick Start

 

Purpose:

学习完后能够学会操作JMF.

JMF是java media framework，能够控制流媒体

 

Reference :

http://blog.csdn.net/oscar999/archive/2006/12/11/1438694.aspx

 

Precondition:

Eclipse 3.3 europa

jmf-2_1_1e-windows-i586.exe

/Files/pixysoft/jmf-2_1_1e-windows-i586.part1.rar 
/Files/pixysoft/jmf-2_1_1e-windows-i586.part2.rar 
/Files/pixysoft/jmf-2_1_1e-windows-i586.part3.rar 
/Files/pixysoft/jmf-2_1_1e-windows-i586.part4.rar 

Quick Start:

新建一个java project，项目名为Oops_JMF

 

在项目里面添加一个lib目录，并添加以下jar文件，全部可以在jmf-2_1_1e-windows-i586.exe里面找到

 

在src目录下面添加以下文件：

SimpleAudioPlayer.java

import  javax.media. * ;

import  java.io.File;

import  java.io.IOException;

import  java.net.URL;

import  java.net.MalformedURLException;

 

public   class  SimpleAudioPlayer

{

        private  Player audioPlayer  =   null ;

 

        public  SimpleAudioPlayer(URL url)  throws  IOException, NoPlayerException,

                     CannotRealizeException

       {

              audioPlayer  =  Manager.createRealizedPlayer(url);

       }

 

        public  SimpleAudioPlayer(File file)  throws  IOException, NoPlayerException,

                     CannotRealizeException

       {

               this (file.toURL());

       }

 

        public   void  play()

       {

              audioPlayer.start();

       }

 

        public   void  stop()

       {

              audioPlayer.stop();

              audioPlayer.close();

       }

}

 

TestCase.java

import  java.io.File;

import  java.io.IOException;

 

import  javax.media.CannotRealizeException;

import  javax.media.NoPlayerException;

 

public   class  TestCase

{

 

        /**

        *  @param  args

         */

        public   static   void  main(String[] args)

       {

              File audioFile  =   new  File( " demo.mp3 " );

               try

              {

                     SimpleAudioPlayer player  =   new  SimpleAudioPlayer(audioFile);

                     System.out.println( " music begin " );

                     player.play();

                     System.out.println( " music end " );

 

              }  catch  (NoPlayerException e)

              {

                      //  TODO Auto-generated catch block

                     e.printStackTrace();

              }  catch  (CannotRealizeException e)

              {

                      //  TODO Auto-generated catch block

                     e.printStackTrace();

              }  catch  (IOException e)

              {

                      //  TODO Auto-generated catch block

                     e.printStackTrace();

              }

 

       }

 

}

在项目根目录下面放置一个demo.mp3文件，最后整个项目变成：

 

 

右键点击项目，run as java application

 

设置好运行环境

 

成功！

 

发现很有趣。整个application运行完了，但是音乐还在继续。估计内部开了线程。