简单的JMF例子

最新推荐文章于 2017-12-26 18:35:00 发布

sahusoft

最新推荐文章于 2017-12-26 18:35:00 发布

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分类专栏： Java 文章标签： exception applet documentation import application null

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这是一个简单的JMF的例子(Form Sun JMF Documentation)

1.需要下载安装JMF，然后配置环境变量。请做以下设置

On Solaris and Linux:

setenv JMFHOME /home/someuser/JMF2.1.1 setenv CLASSPATH $JMFHOME/lib/jmf.jar:.:${CLASSPATH}:
On AIX:

setenv JMFHOME /usr/JMF2.1.1 setenv CLASSPATH $JMFHOME/lib/jmf.jar:.:${CLASSPATH}:
On Windows:

set JMFHOME=C:/JMF2.1.1 set CLASSPATH=%JMFHOME%/lib/jmf.jar;.;%CLASSPATH%

2.在HTML文件中插入一个Applet以承载JMF，当然你也可以用Java Application去承载

<html> <head> </head> <body> <APPLET CODE=ExampleMedia.PlayerApplet WIDTH=320 HEIGHT=300> <PARAM NAME=FILE VALUE="test.mpg"> </APPLET> </body> </html>

3.编写PlayerApplet类

PlayerApplet.java: package ExampleMedia; import java.applet.*; import java.awt.*; import java.net.*; import javax.media.*; public class PlayerApplet extends Applet implements ControllerListener { Player player = null; public void init() { setLayout(new BorderLayout()); String mediaFile = getParameter("FILE"); try { URL mediaURL = new URL(getDocumentBase(), mediaFile); player = Manager.createPlayer(mediaURL); player.addControllerListener(this); } catch (Exception e) { System.err.println("Got exception "+e); } } public void start() { player.start(); } public void stop() { player.stop(); player.deallocate(); } public void destroy() { player.close(); } public synchronized void controllerUpdate(ControllerEvent event) { if (event instanceof RealizeCompleteEvent) { Component comp; if ((comp = player.getVisualComponent()) != null) add ("Center", comp); if ((comp = player.getControlPanelComponent()) != null) add ("South", comp); validate(); } } }

4.编译javac PlayerApplet.java以产生PlayerApplet.class

5.打开index.html可以看到视频。

PS:目录结构

test---------index.html

--------test.mpg

--------ExampleMedia----------PlayerApplet.class