vlcj 快速指南
vlcj - 概述
vlcj 是一个开源项目，它可以帮助在基于 Java 的应用程序中运行 VLC 播放器。它提供了一个选项，可以发现系统中安装的 VLC 播放器，并将其绑定到使用 Java 构建媒体播放器客户端和服务器软件。
使用 Java，您可以简单地播放本地媒体文件，甚至可以创建一个视频点播流媒体服务器。
用法
vlcj 是一个非常流行的基于 Java 的库，它被用于各种基于 Java 的软件中，例如海洋研究船舶和定制 IPTV 和家庭影院解决方案。一些著名的例子包括 Elphel 的开源摄像机和 OpenStreetMap 项目的视频映射。
语法
创建嵌入式 MediaPlayerComponent 组件
EmbeddedMediaPlayerComponent mediaPlayerComponent = new EmbeddedMediaPlayerComponent();
播放视频
播放视频非常简单。传递文件的路径，它将播放视频。
//pass path to media file mediaPlayerComponent.mediaPlayer().media().play(path);
VLC 播放器
VLC Media Player 是一款非常流行的媒体播放器，可用于 Linux、MacOS 和 Windows。它捆绑了大量的编解码器，可以播放任何类型的媒体，而无需安装外部媒体编解码器。它还支持跨网络的视频流媒体，并允许媒体转码。使用 VLC Media Player，我们可以播放本地媒体文件、本地网络流、基于互联网的视频流、DVD、蓝光、网络摄像头、数字视频等等。
VLC Media Player 编译成原生平台代码，不能直接被 Java 程序使用。为了克服这个问题，VLC Media Player 提供了一个名为 LibVLC 的原生 API（应用程序编程接口），它是 VLC Media Player 的一部分。然后，vlcj 提供了与 VLC Media Player 使用 LibVLC 交互所需的 Java 层。
vlcj 特性
vlcj 是一个成熟的库。它提供以下在使用 VLC Media Player 时必不可少的特性。
Java 绑定 - vlcj 为 VLC Media Player 的所有原生操作提供 Java 绑定，以便我们可以使用 Java 编程来编程媒体播放器功能。
框架 - vlcj 充当一个框架，通过为 LibVLC 提供一个简单的更高级别的编程接口来封装任何平台特定的行为和原生代码处理。
健壮性 - vlcj 确保正确使用 LibVLC API。因为不正确的使用可能会导致崩溃或死锁。
处理异步原生事件 - vlcj 注册异步原生事件的回调，然后可以轻松地在 Java 监听器模式中处理这些事件。这种编程模型有助于防止死锁。
vlcj 应用
以下是 vlcj 可用于的一些示例。
基于 Java 的 - 作为基于 Java 的库，我们可以在 Swing、AWT、SWT、JavaFX 和 OpenGL 程序中创建媒体播放器。
IDE - 基于 Eclipse/NetBeans 的富客户端平台应用程序可以使用 vlcj 来创建基于媒体的应用程序。
网络电台播放器 - 使用 vlcj，我们可以创建一个可以播放基于互联网的广播的音频播放器。
YouTube 播放器 - 使用 vlcj，我们可以创建一个可以播放 YouTube 视频的 YouTube 播放器。
转码器 - 使用 vlcj，我们可以转码任何视频。
网络流媒体服务器 - 使用 vlcj，我们可以创建一个视频点播服务器。
网络流媒体客户端 - 使用 vlcj，我们可以创建一个视频点播客户端。
视频播放小程序 - 使用 vlcj，我们可以创建一个可以播放视频的小程序。
网络摄像头 - 使用 vlcj，我们可以创建一个网络摄像头应用程序。
闭路电视摄像头 - 使用 vlcj，我们可以创建一个播放闭路电视摄像头录制的视频的闭路电视摄像头应用程序。
许可证
vlcj 根据 GPL 许可证条款分发。如果在不符合 GPL 许可证条件的情况下进行商业使用，请联系 Caprica Software Limited。
vlcj - 环境设置
vlcj 是一个基于 Java 的库，因此第一个要求是在您的机器上安装 JDK。
步骤 1 - 设置 Java 开发工具包 (JDK)
您可以从 Oracle 的 Java 网站下载最新版本的 SDK - Java SE 下载。 您将在下载的文件中找到安装 JDK 的说明，请按照给定的说明安装和配置设置。最后设置 PATH 和 JAVA_HOME 环境变量以指向包含 java 和 javac 的目录，通常分别为 java_install_dir/bin 和 java_install_dir。
如果您运行的是 Windows 并已将 JDK 安装在 C:\jdk1.6.0_15，则必须将以下行添加到 C:\autoexec.bat 文件中。
set PATH=C:\jdk1.6.0_15\bin;%PATH% set JAVA_HOME=C:\jdk1.6.0_15
或者，在 Windows NT/2000/XP 上，您必须右键单击“我的电脑”，选择“属性”→“高级”→“环境变量”。然后，您必须更新 PATH 值并单击“确定”按钮。
在 Unix（Solaris、Linux 等）上，如果 SDK 安装在 /usr/local/jdk1.6.0_15 并且您使用的是 C shell，则必须将以下内容添加到您的 .cshrc 文件中。
setenv PATH /usr/local/jdk1.6.0_15/bin:$PATH setenv JAVA_HOME /usr/local/jdk1.6.0_15
或者，如果您使用的是集成开发环境 (IDE)，例如 Borland JBuilder、Eclipse、IntelliJ IDEA 或 Sun ONE Studio，则必须编译并运行一个简单的程序以确认 IDE 知道您已将 Java 安装在何处。否则，您必须按照 IDE 文档中给出的说明进行正确的设置。
步骤 2 - 安装 vlcj 库及其依赖项
从 MVNRepository 下载以下 jar 文件，并在您的类路径中使用它们。
- vlc-4.4.4.jar
- vlc-natives-4.1.0.jar
- jna-5.2.0.jar
- jna-platform-5.2.0.jar
确保您正确设置了此目录上的 CLASSPATH 变量，否则在运行应用程序时会遇到问题。
步骤 3 - 设置 Eclipse IDE
本教程中的所有示例都是使用 Eclipse IDE 编写的。因此，我们建议您在您的机器上安装最新版本的 Eclipse。
要安装 Eclipse IDE，请从 https://www.eclipse.org/downloads/ 下载最新的 Eclipse 二进制文件。下载安装后，将二进制分发包解压缩到一个方便的位置。例如，在 Windows 上为 C:\eclipse，或在 Linux/Unix 上为 /usr/local/eclipse，最后相应地设置 PATH 变量。
可以通过在 Windows 机器上执行以下命令启动 Eclipse，或者您可以简单地双击 eclipse.exe
%C:\eclipse\eclipse.exe
可以通过在 Unix（Solaris、Linux 等）机器上执行以下命令启动 Eclipse：
$/usr/local/eclipse/eclipse
步骤 4 - 创建 Maven 项目
C:\MVN>mvn archetype:generate -DgroupId = com.tutorialspoint.media -DartifactId = mediaPlayer -DarchetypeArtifactId = maven-archetype-quickstart -DinteractiveMode = false
这将创建一个 Maven 项目。现在更新 pom.xml 文件，如下所示：
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.tutorialspoint.media</groupId>
<artifactId>mediaPlayer</artifactId>
<packaging>jar</packaging>
<version>1.0-SNAPSHOT</version>
<name>mediaPlayer</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>uk.co.caprica</groupId>
<artifactId>vlcj</artifactId>
<version>4.4.4</version>
</dependency>
</dependencies>
</project>
运行以下命令以更新 Maven 依赖项并构建项目。
mvn package
命令成功后。将基于 Maven 的 mediaplayer 项目作为 Maven 项目导入 Eclipse。其余部分 Eclipse 将处理。
步骤 5 - 安装 VLC 播放器
从他们的主页下载最新版本的 VLC 播放器 VLC media player 并使用他们的安装程序安装。vlcj 4.4 库需要 VLC 3.0 及更高版本和 Java 8 作为先决条件。
vlcj - 播放视频
VLC 播放器发现
vlcj 库提供一个类，使用以下语法自动发现系统中安装的 VLC 播放器。
EmbeddedMediaPlayerComponent mediaPlayerComponent = = new EmbeddedMediaPlayerComponent();
加载视频
现在使用 media，我们可以使用以下语法轻松地在我们的应用程序中加载视频：
mediaPlayerComponent.mediaPlayer().media().startPaused(path);
播放视频
现在使用控件，我们可以使用以下语法轻松地在我们的应用程序中播放视频：
mediaPlayerComponent.mediaPlayer().controls().play();
示例
打开在 环境设置 章节中创建的 Eclipse 中的 mediaPlayer 项目。
使用以下代码更新 App.java：
App.java
package com.tutorialspoint.media;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.UIManager;
import uk.co.caprica.vlcj.player.component.EmbeddedMediaPlayerComponent;
public class App extends JFrame {
private static final long serialVersionUID = 1L;
private static final String TITLE = "My First Media Player";
private static final String VIDEO_PATH = "D:\\Downloads\\sunset-beach.mp4";
private final EmbeddedMediaPlayerComponent mediaPlayerComponent;
private JButton playButton;
public App(String title) {
super(title);
mediaPlayerComponent = new EmbeddedMediaPlayerComponent();
}
public void initialize() {
this.setBounds(100, 100, 600, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
mediaPlayerComponent.release();
System.exit(0);
}
});
JPanel contentPane = new JPanel();
contentPane.setLayout(new BorderLayout());
contentPane.add(mediaPlayerComponent, BorderLayout.CENTER);
JPanel controlsPane = new JPanel();
playButton = new JButton("Play");
controlsPane.add(playButton);
contentPane.add(controlsPane, BorderLayout.SOUTH);
playButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().play();
}
});
this.setContentPane(contentPane);
this.setVisible(true);
}
public void loadVideo(String path) {
mediaPlayerComponent.mediaPlayer().media().startPaused(path);
}
public static void main( String[] args ){
try {
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e) {
System.out.println(e);
}
App application = new App(TITLE);
application.initialize();
application.setVisible(true);
application.loadVideo(VIDEO_PATH);
}
}
通过右键单击文件并选择“以 Java 应用程序运行”来运行应用程序。如果一切正常，成功启动后，它应该显示以下结果：
单击“播放”按钮，视频将开始播放。
vlcj - 暂停视频
让我们进一步增强应用程序，我们将使用暂停视频功能更新 vlcj 播放视频 章节。
暂停视频
现在使用控件，我们可以使用以下语法轻松地暂停应用程序中的视频：
mediaPlayerComponent.mediaPlayer().controls().pause();
示例
打开在 环境设置 章节中创建的 Eclipse 中的 mediaPlayer 项目。
使用以下代码更新 App.java：
App.java
package com.tutorialspoint.media;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.UIManager;
import uk.co.caprica.vlcj.player.component.EmbeddedMediaPlayerComponent;
public class App extends JFrame {
private static final long serialVersionUID = 1L;
private static final String TITLE = "My First Media Player";
private static final String VIDEO_PATH = "D:\\Downloads\\sunset-beach.mp4";
private final EmbeddedMediaPlayerComponent mediaPlayerComponent;
private JButton playButton;
private JButton pauseButton;
public App(String title) {
super(title);
mediaPlayerComponent = new EmbeddedMediaPlayerComponent();
}
public void initialize() {
this.setBounds(100, 100, 600, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
mediaPlayerComponent.release();
System.exit(0);
}
});
JPanel contentPane = new JPanel();
contentPane.setLayout(new BorderLayout());
contentPane.add(mediaPlayerComponent, BorderLayout.CENTER);
JPanel controlsPane = new JPanel();
playButton = new JButton("Play");
controlsPane.add(playButton);
pauseButton = new JButton("Pause");
controlsPane.add(pauseButton);
contentPane.add(controlsPane, BorderLayout.SOUTH);
playButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().play();
}
});
pauseButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().pause();
}
});
this.setContentPane(contentPane);
this.setVisible(true);
}
public void loadVideo(String path) {
mediaPlayerComponent.mediaPlayer().media().startPaused(path);
}
public static void main( String[] args ){
try {
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e) {
System.out.println(e);
}
App application = new App(TITLE);
application.initialize();
application.setVisible(true);
application.loadVideo(VIDEO_PATH);
}
}
通过右键单击文件并选择“以 Java 应用程序运行”来运行应用程序。如果一切正常，成功启动后，它应该显示以下结果：
单击“播放”按钮，视频将开始播放，然后单击“暂停”按钮。现在视频将暂停。
vlcj - 倒回视频
示例
package com.tutorialspoint.media;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.UIManager;
import uk.co.caprica.vlcj.player.component.EmbeddedMediaPlayerComponent;
public class App extends JFrame {
private static final long serialVersionUID = 1L;
private static final String TITLE = "My First Media Player";
private static final String VIDEO_PATH = "D:\\Downloads\\sunset-beach.mp4";
private final EmbeddedMediaPlayerComponent mediaPlayerComponent;
private JButton playButton;
private JButton pauseButton;
private JButton rewindButton;
public App(String title) {
super(title);
mediaPlayerComponent = new EmbeddedMediaPlayerComponent();
}
public void initialize() {
this.setBounds(100, 100, 600, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
mediaPlayerComponent.release();
System.exit(0);
}
});
JPanel contentPane = new JPanel();
contentPane.setLayout(new BorderLayout());
contentPane.add(mediaPlayerComponent, BorderLayout.CENTER);
JPanel controlsPane = new JPanel();
playButton = new JButton("Play");
controlsPane.add(playButton);
pauseButton = new JButton("Pause");
controlsPane.add(pauseButton);
rewindButton = new JButton("Rewind");
controlsPane.add(rewindButton);
contentPane.add(controlsPane, BorderLayout.SOUTH);
playButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().play();
}
});
pauseButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().pause();
}
});
rewindButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(-14000);
}
});
this.setContentPane(contentPane);
this.setVisible(true);
}
public void loadVideo(String path) {
mediaPlayerComponent.mediaPlayer().media().startPaused(path);
}
public static void main( String[] args ){
try {
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e) {
System.out.println(e);
}
App application = new App(TITLE);
application.initialize();
application.setVisible(true);
application.loadVideo(VIDEO_PATH);
}
}
通过右键单击文件并选择“以 Java 应用程序运行”来运行应用程序。如果一切正常，成功启动后，它应该显示以下结果：
现在您可以播放、暂停和倒回视频。
vlcj - 跳转视频
让我们进一步增强应用程序，我们将使用跳转视频功能更新 vlcj 暂停视频 章节。
跳转视频
现在使用控件，我们可以使用以下语法轻松地倒回应用程序中的视频：
mediaPlayerComponent.mediaPlayer().controls().skipWhile(10000);
这里我们传递正值（向前跳跃的长度）来倒回视频。
示例
打开在 环境设置 章节中创建的 Eclipse 中的 mediaPlayer 项目。
使用以下代码更新 App.java：
App.java
package com.tutorialspoint.media;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.UIManager;
import uk.co.caprica.vlcj.player.component.EmbeddedMediaPlayerComponent;
public class App extends JFrame {
private static final long serialVersionUID = 1L;
private static final String TITLE = "My First Media Player";
private static final String VIDEO_PATH = "D:\\Downloads\\sunset-beach.mp4";
private final EmbeddedMediaPlayerComponent mediaPlayerComponent;
private JButton playButton;
private JButton pauseButton;
private JButton rewindButton;
private JButton skipButton;
public App(String title) {
super(title);
mediaPlayerComponent = new EmbeddedMediaPlayerComponent();
}
public void initialize() {
this.setBounds(100, 100, 600, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
mediaPlayerComponent.release();
System.exit(0);
}
});
JPanel contentPane = new JPanel();
contentPane.setLayout(new BorderLayout());
contentPane.add(mediaPlayerComponent, BorderLayout.CENTER);
JPanel controlsPane = new JPanel();
playButton = new JButton("Play");
controlsPane.add(playButton);
pauseButton = new JButton("Pause");
controlsPane.add(pauseButton);
rewindButton = new JButton("Rewind");
controlsPane.add(rewindButton);
skipButton = new JButton("Skip");
controlsPane.add(skipButton);
contentPane.add(controlsPane, BorderLayout.SOUTH);
playButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().play();
}
});
pauseButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().pause();
}
});
rewindButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(-14000);
}
});
skipButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(4000);
}
});
this.setContentPane(contentPane);
this.setVisible(true);
}
public void loadVideo(String path) {
mediaPlayerComponent.mediaPlayer().media().startPaused(path);
}
public static void main( String[] args ){
try {
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e) {
System.out.println(e);
}
App application = new App(TITLE);
application.initialize();
application.setVisible(true);
application.loadVideo(VIDEO_PATH);
}
}
通过右键单击文件并选择“以 Java 应用程序运行”来运行应用程序。如果一切正常，成功启动后，它应该显示以下结果：
现在您可以播放、暂停、倒回和跳过视频。
vlcj - 播放视频事件
让我们进一步增强应用程序，我们将使用处理播放事件功能更新 vlcj 跳转视频 章节。
处理播放事件
使用以下语法添加播放事件处理程序（模板方法）：
mediaPlayerComponent = new EmbeddedMediaPlayerComponent() {
@Override
public void playing(MediaPlayer mediaPlayer) {
}
};
或者我们可以使用以下语法添加播放事件处理程序（监听器方法）：
mediaPlayerComponent.getMediaPlayer().addMediaPlayerEventListener(new MediaPlayerEventAdapter() {
@Override
public void playing(MediaPlayer mediaPlayer) {
}
});
播放视频时，会引发播放事件。
示例
打开在 环境设置 章节中创建的 Eclipse 中的 mediaPlayer 项目。
使用以下代码更新 App.java：
App.java
package com.tutorialspoint.media;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.UIManager;
import uk.co.caprica.vlcj.player.base.MediaPlayer;
import uk.co.caprica.vlcj.player.component.EmbeddedMediaPlayerComponent;
public class App extends JFrame {
private static final long serialVersionUID = 1L;
private static final String TITLE = "My First Media Player";
private static final String VIDEO_PATH = "D:\\Downloads\\sunset-beach.mp4";
private final EmbeddedMediaPlayerComponent mediaPlayerComponent;
private JButton playButton;
private JButton pauseButton;
private JButton rewindButton;
private JButton skipButton;
public App(String title) {
super(title);
mediaPlayerComponent = new EmbeddedMediaPlayerComponent() {
@Override
public void playing(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback started.");
}
};
}
public void initialize() {
this.setBounds(100, 100, 600, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
mediaPlayerComponent.release();
System.exit(0);
}
});
JPanel contentPane = new JPanel();
contentPane.setLayout(new BorderLayout());
contentPane.add(mediaPlayerComponent, BorderLayout.CENTER);
JPanel controlsPane = new JPanel();
playButton = new JButton("Play");
controlsPane.add(playButton);
pauseButton = new JButton("Pause");
controlsPane.add(pauseButton);
rewindButton = new JButton("Rewind");
controlsPane.add(rewindButton);
skipButton = new JButton("Skip");
controlsPane.add(skipButton);
contentPane.add(controlsPane, BorderLayout.SOUTH);
playButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().play();
}
});
pauseButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().pause();
}
});
rewindButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(-14000);
}
});
skipButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(4000);
}
});
this.setContentPane(contentPane);
this.setVisible(true);
}
public void loadVideo(String path) {
mediaPlayerComponent.mediaPlayer().media().startPaused(path);
}
public static void main( String[] args ){
try {
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e) {
System.out.println(e);
}
App application = new App(TITLE);
application.initialize();
application.setVisible(true);
application.loadVideo(VIDEO_PATH);
}
}
通过右键单击文件并选择“以 Java 应用程序运行”来运行应用程序。如果一切正常，成功启动后，它应该显示以下结果：
现在您可以在控制台日志中看到，随着视频加载，它会显示如下消息：
Media Playback started.
现在单击各种按钮。单击“播放”按钮后，上述消息将出现在控制台中。
vlcj - 播放结束视频事件
让我们进一步增强应用程序，我们将使用处理播放结束事件功能更新 vlcj - 播放视频事件 章节。
处理完成事件
使用以下语法添加完成事件处理程序（模板方法）：
mediaPlayerComponent = new EmbeddedMediaPlayerComponent() {
@Override
public void finished(MediaPlayer mediaPlayer) {
}
};
或者，我们可以使用以下语法添加完成事件处理程序（监听器方法）：
mediaPlayerComponent.getMediaPlayer().addMediaPlayerEventListener(new MediaPlayerEventAdapter() {
@Override
public void finished(MediaPlayer mediaPlayer) {
}
});
视频完全播放完毕时，将触发完成事件。
示例
打开在 环境设置 章节中创建的 Eclipse 中的 mediaPlayer 项目。
使用以下代码更新 App.java：
App.java
package com.tutorialspoint.media;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.UIManager;
import uk.co.caprica.vlcj.player.base.MediaPlayer;
import uk.co.caprica.vlcj.player.component.EmbeddedMediaPlayerComponent;
public class App extends JFrame {
private static final long serialVersionUID = 1L;
private static final String TITLE = "My First Media Player";
private static final String VIDEO_PATH = "D:\\Downloads\\sunset-beach.mp4";
private final EmbeddedMediaPlayerComponent mediaPlayerComponent;
private JButton playButton;
private JButton pauseButton;
private JButton rewindButton;
private JButton skipButton;
public App(String title) {
super(title);
mediaPlayerComponent = new EmbeddedMediaPlayerComponent() {
@Override
public void playing(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback started.");
}
@Override
public void finished(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback finished.");
}
};
}
public void initialize() {
this.setBounds(100, 100, 600, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
mediaPlayerComponent.release();
System.exit(0);
}
});
JPanel contentPane = new JPanel();
contentPane.setLayout(new BorderLayout());
contentPane.add(mediaPlayerComponent, BorderLayout.CENTER);
JPanel controlsPane = new JPanel();
playButton = new JButton("Play");
controlsPane.add(playButton);
pauseButton = new JButton("Pause");
controlsPane.add(pauseButton);
rewindButton = new JButton("Rewind");
controlsPane.add(rewindButton);
skipButton = new JButton("Skip");
controlsPane.add(skipButton);
contentPane.add(controlsPane, BorderLayout.SOUTH);
playButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().play();
}
});
pauseButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().pause();
}
});
rewindButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(-14000);
}
});
skipButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(4000);
}
});
this.setContentPane(contentPane);
this.setVisible(true);
}
public void loadVideo(String path) {
mediaPlayerComponent.mediaPlayer().media().startPaused(path);
}
public static void main( String[] args ){
try {
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e) {
System.out.println(e);
}
App application = new App(TITLE);
application.initialize();
application.setVisible(true);
application.loadVideo(VIDEO_PATH);
}
}
通过右键单击文件并选择“以 Java 应用程序运行”来运行应用程序。如果一切正常，成功启动后，它应该显示以下结果：
现在播放视频，等待其完成，然后将显示如下消息：
Media Playback finished.
vlcj - 视频事件加载错误
让我们进一步增强应用程序，我们将使用错误处理功能更新vlcj - 完成视频事件章节。
处理错误事件
使用以下语法添加错误事件处理程序（模板方法）：
mediaPlayerComponent = new EmbeddedMediaPlayerComponent() {
@Override
public void error(MediaPlayer mediaPlayer) {
}
};
或者，我们可以使用以下语法添加错误事件处理程序（监听器方法）：
mediaPlayerComponent.getMediaPlayer().addMediaPlayerEventListener(new MediaPlayerEventAdapter() {
@Override
public void error(MediaPlayer mediaPlayer) {
}
});
如果视频加载失败，则会触发错误事件。但由于play方法立即返回，错误事件（如果视频加载成功但运行失败）将稍后触发。因此，我们必须异步处理错误事件。
示例
打开在 环境设置 章节中创建的 Eclipse 中的 mediaPlayer 项目。
使用以下代码更新 App.java：
App.java
package com.tutorialspoint.media;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import uk.co.caprica.vlcj.player.base.MediaPlayer;
import uk.co.caprica.vlcj.player.component.EmbeddedMediaPlayerComponent;
public class App extends JFrame {
private static final long serialVersionUID = 1L;
private static final String TITLE = "My First Media Player";
private static final String VIDEO_PATH = "D:\\Downloads\\sunset-beach.mp4";
private final EmbeddedMediaPlayerComponent mediaPlayerComponent;
private JButton playButton;
private JButton pauseButton;
private JButton rewindButton;
private JButton skipButton;
public App(String title) {
super(title);
mediaPlayerComponent = new EmbeddedMediaPlayerComponent() {
@Override
public void playing(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback started.");
}
@Override
public void finished(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback finished.");
}
@Override
public void error(MediaPlayer mediaPlayer) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
System.out.println("Failed to load Media.");
}
});
}
};
}
public void initialize() {
this.setBounds(100, 100, 600, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
mediaPlayerComponent.release();
System.exit(0);
}
});
JPanel contentPane = new JPanel();
contentPane.setLayout(new BorderLayout());
contentPane.add(mediaPlayerComponent, BorderLayout.CENTER);
JPanel controlsPane = new JPanel();
playButton = new JButton("Play");
controlsPane.add(playButton);
pauseButton = new JButton("Pause");
controlsPane.add(pauseButton);
rewindButton = new JButton("Rewind");
controlsPane.add(rewindButton);
skipButton = new JButton("Skip");
controlsPane.add(skipButton);
contentPane.add(controlsPane, BorderLayout.SOUTH);
playButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().play();
}
});
pauseButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().pause();
}
});
rewindButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(-14000);
}
});
skipButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(4000);
}
});
this.setContentPane(contentPane);
this.setVisible(true);
}
public void loadVideo(String path) {
mediaPlayerComponent.mediaPlayer().media().startPaused(path);
}
public static void main( String[] args ){
try {
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e) {
System.out.println(e);
}
App application = new App(TITLE);
application.initialize();
application.setVisible(true);
application.loadVideo(VIDEO_PATH);
}
}
这里提供了一个无效的媒体文件路径。右键单击该文件并选择“以Java应用程序运行”来运行应用程序。成功启动后，如果一切正常，则应显示以下结果：
现在将在控制台中看到如下消息：
Failed to load Media.
vlcj - 处理鼠标事件
让我们进一步增强应用程序，我们将使用鼠标事件处理功能更新vlcj - 视频事件加载错误章节。
处理鼠标事件
使用以下语法添加鼠标事件处理程序（模板方法）：
mediaPlayerComponent = new EmbeddedMediaPlayerComponent() {
@Override
public void mouseClicked(MouseEvent e) {
}
@Override
public void mouseWheelMoved(MouseWheelEvent e) {
}
};
或者，我们可以使用以下语法添加鼠标事件处理程序（监听器方法）：
Component videoSurface = mediaPlayerComponent.videoSurfaceComponent();
videoSurface.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
}
});
videoSurface.addMouseWheelListener(new MouseWheelListener() {
@Override
public void mouseWheelMoved(MouseWheelEvent e) {
}
});
在Windows上的监听器方法中，我们需要使用以下语法禁用本地鼠标输入处理。
mediaPlayerComponent.mediaPlayer().input().enableMouseInputHandling(false);
当我们在视频表面内使用鼠标时，将触发鼠标事件。
示例
打开在 环境设置 章节中创建的 Eclipse 中的 mediaPlayer 项目。
使用以下代码更新 App.java：
App.java
package com.tutorialspoint.media;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseWheelEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import uk.co.caprica.vlcj.player.base.MediaPlayer;
import uk.co.caprica.vlcj.player.component.EmbeddedMediaPlayerComponent;
public class App extends JFrame {
private static final long serialVersionUID = 1L;
private static final String TITLE = "My First Media Player";
private static final String VIDEO_PATH = "D:\\Downloads\\sunset-beach.mp4";
private final EmbeddedMediaPlayerComponent mediaPlayerComponent;
private JButton playButton;
private JButton pauseButton;
private JButton rewindButton;
private JButton skipButton;
public App(String title) {
super(title);
mediaPlayerComponent = new EmbeddedMediaPlayerComponent() {
@Override
public void mouseClicked(MouseEvent e) {
super.mouseClicked(e);
System.out.println("Mouse Clicked. (" + e.getX() + "," + e.getY() + ")");
}
@Override
public void mouseWheelMoved(MouseWheelEvent e) {
super.mouseWheelMoved(e);
System.out.println("Mouse wheel moved. " + e.getScrollAmount());
}
@Override
public void playing(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback started.");
}
@Override
public void finished(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback finished.");
}
@Override
public void error(MediaPlayer mediaPlayer) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
System.out.println("Failed to load Media.");
}
});
}
};
}
public void initialize() {
this.setBounds(100, 100, 600, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
mediaPlayerComponent.release();
System.exit(0);
}
});
JPanel contentPane = new JPanel();
contentPane.setLayout(new BorderLayout());
contentPane.add(mediaPlayerComponent, BorderLayout.CENTER);
JPanel controlsPane = new JPanel();
playButton = new JButton("Play");
controlsPane.add(playButton);
pauseButton = new JButton("Pause");
controlsPane.add(pauseButton);
rewindButton = new JButton("Rewind");
controlsPane.add(rewindButton);
skipButton = new JButton("Skip");
controlsPane.add(skipButton);
contentPane.add(controlsPane, BorderLayout.SOUTH);
playButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().play();
}
});
pauseButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().pause();
}
});
rewindButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(-14000);
}
});
skipButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(4000);
}
});
this.setContentPane(contentPane);
this.setVisible(true);
}
public void loadVideo(String path) {
mediaPlayerComponent.mediaPlayer().media().startPaused(path);
}
public static void main( String[] args ){
try {
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e) {
System.out.println(e);
}
App application = new App(TITLE);
application.initialize();
application.setVisible(true);
application.loadVideo(VIDEO_PATH);
}
}
通过右键单击文件并选择“以 Java 应用程序运行”来运行应用程序。如果一切正常，成功启动后，它应该显示以下结果：
现在点击视频内，您将在控制台中看到如下消息：
Media Playback started. Media Playback started. Mouse Clicked. (377,180) Mouse Clicked. (377,180) Mouse Clicked. (356,120) Media Playback finished.
vlcj - 处理键盘事件
让我们进一步增强应用程序，我们将使用键盘事件处理功能更新vlcj - 处理鼠标事件章节。
处理键盘事件
使用以下语法添加鼠标事件处理程序（模板方法）：
mediaPlayerComponent = new EmbeddedMediaPlayerComponent() {
@Override
public void keyPressed(KeyEvent e) {
}
};
或者，我们可以使用以下语法添加键盘事件处理程序（监听器方法）：
Component videoSurface = mediaPlayerComponent.videoSurfaceComponent();
videoSurface.addKeyListener(new KeyAdapter() {
@Override
public void keyPressed(KeyEvent e) {
}
});
在Windows上的监听器方法中，我们需要使用以下语法禁用本地键盘输入处理。
mediaPlayerComponent.mediaPlayer().input().enableKeyInputHandling(false);
当我们按下任何键时，将触发键盘事件。
示例
打开在 环境设置 章节中创建的 Eclipse 中的 mediaPlayer 项目。
使用以下代码更新 App.java：
App.java
package com.tutorialspoint.media;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseWheelEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import uk.co.caprica.vlcj.player.base.MediaPlayer;
import uk.co.caprica.vlcj.player.component.EmbeddedMediaPlayerComponent;
public class App extends JFrame {
private static final long serialVersionUID = 1L;
private static final String TITLE = "My First Media Player";
private static final String VIDEO_PATH = "D:\\Downloads\\sunset-beach.mp4";
private final EmbeddedMediaPlayerComponent mediaPlayerComponent;
private JButton playButton;
private JButton pauseButton;
private JButton rewindButton;
private JButton skipButton;
public App(String title) {
super(title);
mediaPlayerComponent = new EmbeddedMediaPlayerComponent() {
@Override
public void mouseClicked(MouseEvent e) {
super.mouseClicked(e);
System.out.println("Mouse Clicked. (" + e.getX() + "," + e.getY() + ")");
}
@Override
public void mouseWheelMoved(MouseWheelEvent e) {
super.mouseWheelMoved(e);
System.out.println("Mouse wheel moved. " + e.getScrollAmount());
}
@Override
public void keyPressed(KeyEvent e) {
super.keyPressed(e);
System.out.println("Key pressed. " + e.getKeyCode());
}
@Override
public void playing(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback started.");
}
@Override
public void finished(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback finished.");
}
@Override
public void error(MediaPlayer mediaPlayer) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
System.out.println("Failed to load Media.");
}
});
}
};
}
public void initialize() {
this.setBounds(100, 100, 600, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
mediaPlayerComponent.release();
System.exit(0);
}
});
JPanel contentPane = new JPanel();
contentPane.setLayout(new BorderLayout());
contentPane.add(mediaPlayerComponent, BorderLayout.CENTER);
JPanel controlsPane = new JPanel();
playButton = new JButton("Play");
controlsPane.add(playButton);
pauseButton = new JButton("Pause");
controlsPane.add(pauseButton);
rewindButton = new JButton("Rewind");
controlsPane.add(rewindButton);
skipButton = new JButton("Skip");
controlsPane.add(skipButton);
contentPane.add(controlsPane, BorderLayout.SOUTH);
playButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().play();
}
});
pauseButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().pause();
}
});
rewindButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(-14000);
}
});
skipButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(4000);
}
});
this.setContentPane(contentPane);
this.setVisible(true);
}
public void loadVideo(String path) {
mediaPlayerComponent.mediaPlayer().media().startPaused(path);
}
public static void main( String[] args ){
try {
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e) {
System.out.println(e);
}
App application = new App(TITLE);
application.initialize();
application.setVisible(true);
application.loadVideo(VIDEO_PATH);
}
}
通过右键单击文件并选择“以 Java 应用程序运行”来运行应用程序。如果一切正常，成功启动后，它应该显示以下结果：
现在按下任意键，您将在控制台中看到如下消息：
Media Playback started. Media Playback started. Mouse Clicked. (345,231) Key pressed. 82 Media Playback finished. Key pressed. 82
vlcj - 音频播放器
让我们进一步增强应用程序，我们将使用音频播放功能更新vlcj - 处理键盘事件章节。与视频播放类似，我们也可以轻松控制音频播放。
创建音频播放器
AudioPlayerComponent audioPlayerComponent = new AudioPlayerComponent();
加载音频
现在，我们可以使用media方法使用以下语法轻松地将音频加载到我们的应用程序中：
audioPlayerComponent.mediaPlayer().media().startPaused(path);
播放音频
现在，我们可以使用controls方法使用以下语法轻松地在我们的应用程序中播放音频剪辑：
audioPlayerComponent.mediaPlayer().controls().play();
示例
打开在 环境设置 章节中创建的 Eclipse 中的 mediaPlayer 项目。
使用以下代码更新 App.java：
App.java
package com.tutorialspoint.media;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseWheelEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.border.Border;
import uk.co.caprica.vlcj.player.base.MediaPlayer;
import uk.co.caprica.vlcj.player.base.MediaPlayerEventAdapter;
import uk.co.caprica.vlcj.player.component.AudioPlayerComponent;
import uk.co.caprica.vlcj.player.component.EmbeddedMediaPlayerComponent;
public class App extends JFrame {
private static final long serialVersionUID = 1L;
private static final String TITLE = "My First Media Player";
private static final String VIDEO_PATH = "D:\\Downloads\\sunset-beach.mp4";
private static final String AUDIO_PATH = "D:\\Downloads\\time-to-feel-good.mp3";
private final EmbeddedMediaPlayerComponent mediaPlayerComponent;
private final AudioPlayerComponent audioPlayerComponent;
private JButton playButton;
private JButton pauseButton;
private JButton rewindButton;
private JButton skipButton;
private JButton playAudioButton;
private JButton pauseAudioButton;
public App(String title) {
super(title);
mediaPlayerComponent = new EmbeddedMediaPlayerComponent() {
@Override
public void mouseClicked(MouseEvent e) {
super.mouseClicked(e);
System.out.println("Mouse Clicked. (" + e.getX() + "," + e.getY() + ")");
}
@Override
public void mouseWheelMoved(MouseWheelEvent e) {
super.mouseWheelMoved(e);
System.out.println("Mouse wheel moved. " + e.getScrollAmount());
}
@Override
public void keyPressed(KeyEvent e) {
super.keyPressed(e);
System.out.println("Key pressed. " + e.getKeyCode());
}
@Override
public void playing(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback started.");
}
@Override
public void finished(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback finished.");
}
@Override
public void error(MediaPlayer mediaPlayer) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
System.out.println("Failed to load Media.");
}
});
}
};
audioPlayerComponent = new AudioPlayerComponent();
audioPlayerComponent.mediaPlayer().events().addMediaPlayerEventListener(new MediaPlayerEventAdapter() {
@Override
public void finished(MediaPlayer mediaPlayer) {
System.out.println("Audio Playback Finished.");
}
@Override
public void error(MediaPlayer mediaPlayer) {
System.out.println("Failed to load Audio.");
}
});
}
public void initialize() {
this.setBounds(100, 100, 600, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
mediaPlayerComponent.release();
System.exit(0);
}
});
JPanel contentPane = new JPanel();
contentPane.setLayout(new BorderLayout());
contentPane.add(mediaPlayerComponent, BorderLayout.CENTER);
//Create a video border
Border videoBorder = BorderFactory.createTitledBorder("Video Controls");
//Create an audio border
Border audioBorder = BorderFactory.createTitledBorder("Audio Controls");
JPanel videoControlsPane = new JPanel();
videoControlsPane.setBorder(videoBorder);
playButton = new JButton("Play");
videoControlsPane.add(playButton);
pauseButton = new JButton("Pause");
videoControlsPane.add(pauseButton);
rewindButton = new JButton("Rewind");
videoControlsPane.add(rewindButton);
skipButton = new JButton("Skip");
videoControlsPane.add(skipButton);
JPanel audioControlsPane = new JPanel();
audioControlsPane.setBorder(audioBorder);
playAudioButton = new JButton("Play");
audioControlsPane.add(playAudioButton);
pauseAudioButton = new JButton("Pause");
audioControlsPane.add(pauseAudioButton);
JPanel controlsPane = new JPanel();
controlsPane.add(videoControlsPane);
controlsPane.add(audioControlsPane);
contentPane.add(controlsPane, BorderLayout.SOUTH);
playButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().play();
}
});
pauseButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().pause();
}
});
rewindButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(-14000);
}
});
skipButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(4000);
}
});
playAudioButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
audioPlayerComponent.mediaPlayer().controls().play();
}
});
pauseAudioButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
audioPlayerComponent.mediaPlayer().controls().pause();
}
});
this.setContentPane(contentPane);
this.setVisible(true);
}
public void loadVideo(String path) {
mediaPlayerComponent.mediaPlayer().media().startPaused(path);
}
public void loadAudio(String path) {
audioPlayerComponent.mediaPlayer().media().startPaused(path);
}
public static void main( String[] args ){
try {
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e) {
System.out.println(e);
}
App application = new App(TITLE);
application.initialize();
application.setVisible(true);
application.loadVideo(VIDEO_PATH);
application.loadAudio(AUDIO_PATH);
}
}
通过右键单击文件并选择“以 Java 应用程序运行”来运行应用程序。如果一切正常，成功启动后，它应该显示以下结果：
现在按下音频控件中的播放按钮，剪辑将开始播放。单击暂停按钮将暂停音频。
vlcj - 跑马灯
让我们进一步增强应用程序，我们将使用跑马灯支持更新vlcj - 音频播放器章节。我们可以在视频上添加文本作为叠加。
创建并构建跑马灯
Marquee marquee = Marquee.marquee()
.text("TutorialsPoint")
.size(40)
.colour(Color.WHITE)
.position(MarqueePosition.BOTTOM_RIGHT)
.opacity(0.5f)
.enable();
设置跑马灯
现在，我们可以使用marquee方法使用以下语法轻松地在我们的视频应用程序中设置跑马灯：
mediaPlayerComponent.mediaPlayer().marquee().set(marquee);
示例
打开在 环境设置 章节中创建的 Eclipse 中的 mediaPlayer 项目。
使用以下代码更新 App.java：
App.java
package com.tutorialspoint.media;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseWheelEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.border.Border;
import uk.co.caprica.vlcj.player.base.Marquee;
import uk.co.caprica.vlcj.player.base.MarqueePosition;
import uk.co.caprica.vlcj.player.base.MediaPlayer;
import uk.co.caprica.vlcj.player.base.MediaPlayerEventAdapter;
import uk.co.caprica.vlcj.player.component.AudioPlayerComponent;
import uk.co.caprica.vlcj.player.component.EmbeddedMediaPlayerComponent;
public class App extends JFrame {
private static final long serialVersionUID = 1L;
private static final String TITLE = "My First Media Player";
private static final String VIDEO_PATH = "D:\\Downloads\\sunset-beach.mp4";
private static final String AUDIO_PATH = "D:\\Downloads\\time-to-feel-good.mp3";
private final EmbeddedMediaPlayerComponent mediaPlayerComponent;
private final AudioPlayerComponent audioPlayerComponent;
private final Marquee marquee;
private JButton playButton;
private JButton pauseButton;
private JButton rewindButton;
private JButton skipButton;
private JButton playAudioButton;
private JButton pauseAudioButton;
public App(String title) {
super(title);
mediaPlayerComponent = new EmbeddedMediaPlayerComponent() {
@Override
public void mouseClicked(MouseEvent e) {
super.mouseClicked(e);
System.out.println("Mouse Clicked. (" + e.getX() + "," + e.getY() + ")");
}
@Override
public void mouseWheelMoved(MouseWheelEvent e) {
super.mouseWheelMoved(e);
System.out.println("Mouse wheel moved. " + e.getScrollAmount());
}
@Override
public void keyPressed(KeyEvent e) {
super.keyPressed(e);
System.out.println("Key pressed. " + e.getKeyCode());
}
@Override
public void playing(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback started.");
}
@Override
public void finished(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback finished.");
}
@Override
public void error(MediaPlayer mediaPlayer) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
System.out.println("Failed to load Media.");
}
});
}
};
audioPlayerComponent = new AudioPlayerComponent();
audioPlayerComponent.mediaPlayer().events().addMediaPlayerEventListener(new MediaPlayerEventAdapter() {
@Override
public void finished(MediaPlayer mediaPlayer) {
System.out.println("Audio Playback Finished.");
}
@Override
public void error(MediaPlayer mediaPlayer) {
System.out.println("Failed to load Audio.");
}
});
marquee = Marquee.marquee()
.text("TutorialsPoint")
.size(40)
.colour(Color.WHITE)
.position(MarqueePosition.BOTTOM_RIGHT)
.opacity(0.5f)
.enable();
mediaPlayerComponent.mediaPlayer().marquee().set(marquee);
}
public void initialize() {
this.setBounds(100, 100, 600, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
mediaPlayerComponent.release();
System.exit(0);
}
});
JPanel contentPane = new JPanel();
contentPane.setLayout(new BorderLayout());
contentPane.add(mediaPlayerComponent, BorderLayout.CENTER);
//Create a video border
Border videoBorder = BorderFactory.createTitledBorder("Video Controls");
//Create an audio border
Border audioBorder = BorderFactory.createTitledBorder("Audio Controls");
JPanel videoControlsPane = new JPanel();
videoControlsPane.setBorder(videoBorder);
playButton = new JButton("Play");
videoControlsPane.add(playButton);
pauseButton = new JButton("Pause");
videoControlsPane.add(pauseButton);
rewindButton = new JButton("Rewind");
videoControlsPane.add(rewindButton);
skipButton = new JButton("Skip");
videoControlsPane.add(skipButton);
JPanel audioControlsPane = new JPanel();
audioControlsPane.setBorder(audioBorder);
playAudioButton = new JButton("Play");
audioControlsPane.add(playAudioButton);
pauseAudioButton = new JButton("Pause");
audioControlsPane.add(pauseAudioButton);
JPanel controlsPane = new JPanel();
controlsPane.add(videoControlsPane);
controlsPane.add(audioControlsPane);
contentPane.add(controlsPane, BorderLayout.SOUTH);
playButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().play();
}
});
pauseButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().pause();
}
});
rewindButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(-14000);
}
});
skipButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(4000);
}
});
playAudioButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
audioPlayerComponent.mediaPlayer().controls().play();
}
});
pauseAudioButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
audioPlayerComponent.mediaPlayer().controls().pause();
}
});
this.setContentPane(contentPane);
this.setVisible(true);
}
public void loadVideo(String path) {
mediaPlayerComponent.mediaPlayer().media().startPaused(path);
}
public void loadAudio(String path) {
audioPlayerComponent.mediaPlayer().media().startPaused(path);
}
public static void main( String[] args ){
try {
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e) {
System.out.println(e);
}
App application = new App(TITLE);
application.initialize();
application.setVisible(true);
application.loadVideo(VIDEO_PATH);
application.loadAudio(AUDIO_PATH);
}
}
通过右键单击文件并选择“以 Java 应用程序运行”来运行应用程序。如果一切正常，成功启动后，它应该显示以下结果：
vlcj - 徽标
让我们进一步增强应用程序，我们将使用Logo支持更新vlcj - 跑马灯章节。我们可以在视频上添加文本作为叠加。
创建并构建Logo
Logo logo = Logo.logo() .file(LOGO_PATH) .position(LogoPosition.TOP_LEFT) .opacity(0.3f) .enable();
设置Logo
现在，我们可以使用logo方法使用以下语法轻松地在我们的视频应用程序中设置Logo：
mediaPlayerComponent.mediaPlayer().logo().set(logo);
示例
在Eclipse中打开在环境设置章节中创建的项目mediaPlayer。
使用以下代码更新 App.java：
App.java
package com.tutorialspoint.media;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseWheelEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.border.Border;
import uk.co.caprica.vlcj.player.base.Logo;
import uk.co.caprica.vlcj.player.base.LogoPosition;
import uk.co.caprica.vlcj.player.base.Marquee;
import uk.co.caprica.vlcj.player.base.MarqueePosition;
import uk.co.caprica.vlcj.player.base.MediaPlayer;
import uk.co.caprica.vlcj.player.base.MediaPlayerEventAdapter;
import uk.co.caprica.vlcj.player.component.AudioPlayerComponent;
import uk.co.caprica.vlcj.player.component.EmbeddedMediaPlayerComponent;
public class App extends JFrame {
private static final long serialVersionUID = 1L;
private static final String TITLE = "My First Media Player";
private static final String VIDEO_PATH = "D:\\Downloads\\sunset-beach.mp4";
private static final String AUDIO_PATH = "D:\\Downloads\\time-to-feel-good.mp3";
private static final String LOGO_PATH = "D:\\Downloads\\logo.png";
private final EmbeddedMediaPlayerComponent mediaPlayerComponent;
private final AudioPlayerComponent audioPlayerComponent;
private final Marquee marquee;
private final Logo logo;
private JButton playButton;
private JButton pauseButton;
private JButton rewindButton;
private JButton skipButton;
private JButton playAudioButton;
private JButton pauseAudioButton;
public App(String title) {
super(title);
mediaPlayerComponent = new EmbeddedMediaPlayerComponent() {
@Override
public void mouseClicked(MouseEvent e) {
super.mouseClicked(e);
System.out.println("Mouse Clicked. (" + e.getX() + "," + e.getY() + ")");
}
@Override
public void mouseWheelMoved(MouseWheelEvent e) {
super.mouseWheelMoved(e);
System.out.println("Mouse wheel moved. " + e.getScrollAmount());
}
@Override
public void keyPressed(KeyEvent e) {
super.keyPressed(e);
System.out.println("Key pressed. " + e.getKeyCode());
}
@Override
public void playing(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback started.");
}
@Override
public void finished(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback finished.");
}
@Override
public void error(MediaPlayer mediaPlayer) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
System.out.println("Failed to load Media.");
}
});
}
};
audioPlayerComponent = new AudioPlayerComponent();
audioPlayerComponent.mediaPlayer().events().addMediaPlayerEventListener(new MediaPlayerEventAdapter() {
@Override
public void finished(MediaPlayer mediaPlayer) {
System.out.println("Audio Playback Finished.");
}
@Override
public void error(MediaPlayer mediaPlayer) {
System.out.println("Failed to load Audio.");
}
});
marquee = Marquee.marquee()
.text("TutorialsPoint")
.size(40)
.colour(Color.WHITE)
.position(MarqueePosition.BOTTOM_RIGHT)
.opacity(0.5f)
.enable();
mediaPlayerComponent.mediaPlayer().marquee().set(marquee);
logo = Logo.logo()
.file(LOGO_PATH)
.position(LogoPosition.TOP_LEFT)
.opacity(0.3f)
.enable();
mediaPlayerComponent.mediaPlayer().logo().set(logo);
}
public void initialize() {
this.setBounds(100, 100, 600, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
mediaPlayerComponent.release();
System.exit(0);
}
});
JPanel contentPane = new JPanel();
contentPane.setLayout(new BorderLayout());
contentPane.add(mediaPlayerComponent, BorderLayout.CENTER);
//Create a video border
Border videoBorder = BorderFactory.createTitledBorder("Video Controls");
//Create an audio border
Border audioBorder = BorderFactory.createTitledBorder("Audio Controls");
JPanel videoControlsPane = new JPanel();
videoControlsPane.setBorder(videoBorder);
playButton = new JButton("Play");
videoControlsPane.add(playButton);
pauseButton = new JButton("Pause");
videoControlsPane.add(pauseButton);
rewindButton = new JButton("Rewind");
videoControlsPane.add(rewindButton);
skipButton = new JButton("Skip");
videoControlsPane.add(skipButton);
JPanel audioControlsPane = new JPanel();
audioControlsPane.setBorder(audioBorder);
playAudioButton = new JButton("Play");
audioControlsPane.add(playAudioButton);
pauseAudioButton = new JButton("Pause");
audioControlsPane.add(pauseAudioButton);
JPanel controlsPane = new JPanel();
controlsPane.add(videoControlsPane);
controlsPane.add(audioControlsPane);
contentPane.add(controlsPane, BorderLayout.SOUTH);
playButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().play();
}
});
pauseButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().pause();
}
});
rewindButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(-14000);
}
});
skipButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(4000);
}
});
playAudioButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
audioPlayerComponent.mediaPlayer().controls().play();
}
});
pauseAudioButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
audioPlayerComponent.mediaPlayer().controls().pause();
}
});
this.setContentPane(contentPane);
this.setVisible(true);
}
public void loadVideo(String path) {
mediaPlayerComponent.mediaPlayer().media().startPaused(path);
}
public void loadAudio(String path) {
audioPlayerComponent.mediaPlayer().media().startPaused(path);
}
public static void main( String[] args ){
try {
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e) {
System.out.println(e);
}
App application = new App(TITLE);
application.initialize();
application.setVisible(true);
application.loadVideo(VIDEO_PATH);
application.loadAudio(AUDIO_PATH);
}
}
通过右键单击文件并选择“以 Java 应用程序运行”来运行应用程序。如果一切正常，成功启动后，它应该显示以下结果：
vlcj - 媒体信息
让我们进一步增强应用程序，我们将使用媒体信息支持更新vlcj - Logo章节。
使用mediaPlayer解析媒体
mediaPlayerComponent.mediaPlayer().media().parsing().parse();
处理解析事件
mediaPlayerComponent.mediaPlayer().events().addMediaEventListener(new MediaEventAdapter() {
@Override
public void mediaParsedChanged(Media media, MediaParsedStatus newStatus) {
}
}
示例
打开在 环境设置 章节中创建的 Eclipse 中的 mediaPlayer 项目。
使用以下代码更新 App.java：
App.java
package com.tutorialspoint.media;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseWheelEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.List;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.border.Border;
import uk.co.caprica.vlcj.media.Media;
import uk.co.caprica.vlcj.media.MediaEventAdapter;
import uk.co.caprica.vlcj.media.MediaParsedStatus;
import uk.co.caprica.vlcj.media.TrackInfo;
import uk.co.caprica.vlcj.player.base.ChapterDescription;
import uk.co.caprica.vlcj.player.base.Logo;
import uk.co.caprica.vlcj.player.base.LogoPosition;
import uk.co.caprica.vlcj.player.base.Marquee;
import uk.co.caprica.vlcj.player.base.MarqueePosition;
import uk.co.caprica.vlcj.player.base.MediaPlayer;
import uk.co.caprica.vlcj.player.base.MediaPlayerEventAdapter;
import uk.co.caprica.vlcj.player.base.TitleDescription;
import uk.co.caprica.vlcj.player.base.TrackDescription;
import uk.co.caprica.vlcj.player.component.AudioPlayerComponent;
import uk.co.caprica.vlcj.player.component.EmbeddedMediaPlayerComponent;
public class App extends JFrame {
private static final long serialVersionUID = 1L;
private static final String TITLE = "My First Media Player";
private static final String VIDEO_PATH = "D:\\Downloads\\sunset-beach.mp4";
private static final String AUDIO_PATH = "D:\\Downloads\\time-to-feel-good.mp3";
private static final String LOGO_PATH = "D:\\Downloads\\logo.png";
private final EmbeddedMediaPlayerComponent mediaPlayerComponent;
private final AudioPlayerComponent audioPlayerComponent;
private final Marquee marquee;
private final Logo logo;
private JButton playButton;
private JButton pauseButton;
private JButton rewindButton;
private JButton skipButton;
private JButton playAudioButton;
private JButton pauseAudioButton;
public App(String title) {
super(title);
mediaPlayerComponent = new EmbeddedMediaPlayerComponent() {
@Override
public void mouseClicked(MouseEvent e) {
super.mouseClicked(e);
System.out.println("Mouse Clicked. (" + e.getX() + "," + e.getY() + ")");
}
@Override
public void mouseWheelMoved(MouseWheelEvent e) {
super.mouseWheelMoved(e);
System.out.println("Mouse wheel moved. " + e.getScrollAmount());
}
@Override
public void keyPressed(KeyEvent e) {
super.keyPressed(e);
System.out.println("Key pressed. " + e.getKeyCode());
}
@Override
public void playing(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback started.");
}
@Override
public void finished(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback finished.");
}
@Override
public void error(MediaPlayer mediaPlayer) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
System.out.println("Failed to load Media.");
}
});
}
};
audioPlayerComponent = new AudioPlayerComponent();
audioPlayerComponent.mediaPlayer().events().addMediaPlayerEventListener(new MediaPlayerEventAdapter() {
@Override
public void finished(MediaPlayer mediaPlayer) {
System.out.println("Audio Playback Finished.");
}
@Override
public void error(MediaPlayer mediaPlayer) {
System.out.println("Failed to load Audio.");
}
});
marquee = Marquee.marquee()
.text("TutorialsPoint")
.size(40)
.colour(Color.WHITE)
.position(MarqueePosition.BOTTOM_RIGHT)
.opacity(0.5f)
.enable();
mediaPlayerComponent.mediaPlayer().marquee().set(marquee);
logo = Logo.logo()
.file(LOGO_PATH)
.position(LogoPosition.TOP_LEFT)
.opacity(0.3f)
.enable();
mediaPlayerComponent.mediaPlayer().logo().set(logo);
mediaPlayerComponent.mediaPlayer().events().addMediaEventListener(new MediaEventAdapter() {
@Override
public void mediaParsedChanged(Media media,
MediaParsedStatus newStatus) {
if(newStatus == MediaParsedStatus.DONE) {
MediaPlayer mediaPlayer = mediaPlayerComponent.mediaPlayer();
List<TrackDescription> videoTracks = mediaPlayer.video().trackDescriptions();
System.out.println(videoTracks.get(1));
List<TitleDescription> titles = mediaPlayer.titles().titleDescriptions();
if(!titles.isEmpty()) {
System.out.println(titles.get(0));
}
List<ChapterDescription> chapters = mediaPlayer.chapters().descriptions();
if(!chapters.isEmpty()) {
System.out.println(chapters.get(0));
}
List<? extends TrackInfo> trackInfo = mediaPlayer.media().info().tracks();
if(!trackInfo.isEmpty()) {
System.out.println(trackInfo.get(0));
}
}
}
});
}
public void initialize() {
this.setBounds(100, 100, 600, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
mediaPlayerComponent.release();
System.exit(0);
}
});
JPanel contentPane = new JPanel();
contentPane.setLayout(new BorderLayout());
contentPane.add(mediaPlayerComponent, BorderLayout.CENTER);
//Create a video border
Border videoBorder = BorderFactory.createTitledBorder("Video Controls");
//Create an audio border
Border audioBorder = BorderFactory.createTitledBorder("Audio Controls");
JPanel videoControlsPane = new JPanel();
videoControlsPane.setBorder(videoBorder);
playButton = new JButton("Play");
videoControlsPane.add(playButton);
pauseButton = new JButton("Pause");
videoControlsPane.add(pauseButton);
rewindButton = new JButton("Rewind");
videoControlsPane.add(rewindButton);
skipButton = new JButton("Skip");
videoControlsPane.add(skipButton);
JPanel audioControlsPane = new JPanel();
audioControlsPane.setBorder(audioBorder);
playAudioButton = new JButton("Play");
audioControlsPane.add(playAudioButton);
pauseAudioButton = new JButton("Pause");
audioControlsPane.add(pauseAudioButton);
JPanel controlsPane = new JPanel();
controlsPane.add(videoControlsPane);
controlsPane.add(audioControlsPane);
contentPane.add(controlsPane, BorderLayout.SOUTH);
playButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().play();
}
});
pauseButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().pause();
}
});
rewindButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(-14000);
}
});
skipButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(4000);
}
});
playAudioButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
audioPlayerComponent.mediaPlayer().controls().play();
}
});
pauseAudioButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
audioPlayerComponent.mediaPlayer().controls().pause();
}
});
this.setContentPane(contentPane);
this.setVisible(true);
}
public void loadVideo(String path) {
mediaPlayerComponent.mediaPlayer().media().startPaused(path);
mediaPlayerComponent.mediaPlayer().media().parsing().parse();
}
public void loadAudio(String path) {
audioPlayerComponent.mediaPlayer().media().startPaused(path);
}
public static void main( String[] args ){
try {
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e) {
System.out.println(e);
}
App application = new App(TITLE);
application.initialize();
application.setVisible(true);
application.loadVideo(VIDEO_PATH);
application.loadAudio(AUDIO_PATH);
}
}
通过右键单击文件并选择“以 Java 应用程序运行”来运行应用程序。如果一切正常，成功启动后，它应该显示以下结果：
它将显示如下消息：
TrackDescription[id=0,description=Track 1] VideoTrackInfo[codec=0x34363268,codecName=h264,originalCodec=0x31637661, originalCodecName=avc1,id=0,profile=-1,level=-1,bitRate=0,language=null, description=null,codecDescription=H264 - MPEG-4 AVC (part 10)] [width=596,height=336,sampleAspectRatio=1,sampleAspectRatioBase=1, frameRate=30000,frameRateBase=1001,orientation=TOP_LEFT,projection=RECTANGULAR, yaw=0.0,pitch=0.0,roll=0.0,fov=80.0,multiview=null] Media Playback started. TrackDescription[id=0,description=Track 1] VideoTrackInfo[codec=0x34363268,codecName=h264,originalCodec=0x31637661, originalCodecName=avc1,id=0,profile=-1,level=-1,bitRate=0,language=null, description=null,codecDescription=H264 - MPEG-4 AVC (part 10)] [width=596,height=336,sampleAspectRatio=1,sampleAspectRatioBase=1, frameRate=30000,frameRateBase=1001,orientation=TOP_LEFT,projection=RECTANGULAR, yaw=0.0,pitch=0.0,roll=0.0,fov=80.0,multiview=null]
vlcj - 全屏视频
让我们进一步增强应用程序，我们将使用全屏播放支持更新vlcj - 媒体信息章节。
附加全屏策略
我们使用AdaptiveFullScreenStrategy，它内部使用XFullScreenStrategy（Linux的原生全屏策略）和Win32FullScreenStrategy（Windows的原生全屏策略）。
mediaPlayerComponent.mediaPlayer().fullScreen().strategy( new AdaptiveFullScreenStrategy(this));
切换全屏模式
以下代码切换全屏模式。
mediaPlayerComponent.mediaPlayer().fullScreen().toggle();
示例
打开在 环境设置 章节中创建的 Eclipse 中的 mediaPlayer 项目。
使用以下代码更新 App.java：
App.java
package com.tutorialspoint.media;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseWheelEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.List;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JToggleButton;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.border.Border;
import uk.co.caprica.vlcj.media.Media;
import uk.co.caprica.vlcj.media.MediaEventAdapter;
import uk.co.caprica.vlcj.media.MediaParsedStatus;
import uk.co.caprica.vlcj.media.TrackInfo;
import uk.co.caprica.vlcj.player.base.ChapterDescription;
import uk.co.caprica.vlcj.player.base.Logo;
import uk.co.caprica.vlcj.player.base.LogoPosition;
import uk.co.caprica.vlcj.player.base.Marquee;
import uk.co.caprica.vlcj.player.base.MarqueePosition;
import uk.co.caprica.vlcj.player.base.MediaPlayer;
import uk.co.caprica.vlcj.player.base.MediaPlayerEventAdapter;
import uk.co.caprica.vlcj.player.base.TitleDescription;
import uk.co.caprica.vlcj.player.base.TrackDescription;
import uk.co.caprica.vlcj.player.component.AudioPlayerComponent;
import uk.co.caprica.vlcj.player.component.EmbeddedMediaPlayerComponent;
import uk.co.caprica.vlcj.player.embedded.fullscreen.adaptive.AdaptiveFullScreenStrategy;
public class App extends JFrame {
private static final long serialVersionUID = 1L;
private static final String TITLE = "My First Media Player";
private static final String VIDEO_PATH = "D:\\Downloads\\sunset-beach.mp4";
private static final String AUDIO_PATH = "D:\\Downloads\\time-to-feel-good.mp3";
private static final String LOGO_PATH = "D:\\Downloads\\logo.png";
private final EmbeddedMediaPlayerComponent mediaPlayerComponent;
private final AudioPlayerComponent audioPlayerComponent;
private final Marquee marquee;
private final Logo logo;
private JButton playButton;
private JButton pauseButton;
private JButton rewindButton;
private JButton skipButton;
private JButton playAudioButton;
private JButton pauseAudioButton;
private JToggleButton toggleButton;
public App(String title) {
super(title);
mediaPlayerComponent = new EmbeddedMediaPlayerComponent() {
@Override
public void mouseClicked(MouseEvent e) {
super.mouseClicked(e);
System.out.println("Mouse Clicked. (" + e.getX() + "," + e.getY() + ")");
}
@Override
public void mouseWheelMoved(MouseWheelEvent e) {
super.mouseWheelMoved(e);
System.out.println("Mouse wheel moved. " + e.getScrollAmount());
}
@Override
public void keyPressed(KeyEvent e) {
super.keyPressed(e);
System.out.println("Key pressed. " + e.getKeyCode());
}
@Override
public void playing(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback started.");
}
@Override
public void finished(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback finished.");
}
@Override
public void error(MediaPlayer mediaPlayer) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
System.out.println("Failed to load Media.");
}
});
}
};
audioPlayerComponent = new AudioPlayerComponent();
audioPlayerComponent.mediaPlayer().events().addMediaPlayerEventListener(new MediaPlayerEventAdapter() {
@Override
public void finished(MediaPlayer mediaPlayer) {
System.out.println("Audio Playback Finished.");
}
@Override
public void error(MediaPlayer mediaPlayer) {
System.out.println("Failed to load Audio.");
}
});
marquee = Marquee.marquee()
.text("TutorialsPoint")
.size(40)
.colour(Color.WHITE)
.position(MarqueePosition.BOTTOM_RIGHT)
.opacity(0.5f)
.enable();
mediaPlayerComponent.mediaPlayer().marquee().set(marquee);
logo = Logo.logo()
.file(LOGO_PATH)
.position(LogoPosition.TOP_LEFT)
.opacity(0.3f)
.enable();
mediaPlayerComponent.mediaPlayer().logo().set(logo);
mediaPlayerComponent.mediaPlayer().events().addMediaEventListener(new MediaEventAdapter() {
@Override
public void mediaParsedChanged(Media media,
MediaParsedStatus newStatus) {
if(newStatus == MediaParsedStatus.DONE) {
MediaPlayer mediaPlayer = mediaPlayerComponent.mediaPlayer();
List<TrackDescription> videoTracks = mediaPlayer.video().trackDescriptions();
System.out.println(videoTracks.get(1));
List<TitleDescription> titles = mediaPlayer.titles().titleDescriptions();
if(!titles.isEmpty()) {
System.out.println(titles.get(0));
}
List<ChapterDescription> chapters = mediaPlayer.chapters().descriptions();
if(!chapters.isEmpty()) {
System.out.println(chapters.get(0));
}
List<? extends TrackInfo> trackInfo = mediaPlayer.media().info().tracks();
if(!trackInfo.isEmpty()) {
System.out.println(trackInfo.get(0));
}
}
}
});
mediaPlayerComponent.mediaPlayer().fullScreen().strategy(new AdaptiveFullScreenStrategy(this));
}
public void initialize() {
this.setBounds(100, 100, 600, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
mediaPlayerComponent.release();
System.exit(0);
}
});
JPanel contentPane = new JPanel();
contentPane.setLayout(new BorderLayout());
contentPane.add(mediaPlayerComponent, BorderLayout.CENTER);
//Create a video border
Border videoBorder = BorderFactory.createTitledBorder("Video Controls");
//Create an audio border
Border audioBorder = BorderFactory.createTitledBorder("Audio Controls");
//Create others border
Border othersBorder = BorderFactory.createTitledBorder("Others");
JPanel videoControlsPane = new JPanel();
videoControlsPane.setBorder(videoBorder);
playButton = new JButton("Play");
videoControlsPane.add(playButton);
pauseButton = new JButton("Pause");
videoControlsPane.add(pauseButton);
rewindButton = new JButton("Rewind");
videoControlsPane.add(rewindButton);
skipButton = new JButton("Skip");
videoControlsPane.add(skipButton);
JPanel audioControlsPane = new JPanel();
audioControlsPane.setBorder(audioBorder);
playAudioButton = new JButton("Play");
audioControlsPane.add(playAudioButton);
pauseAudioButton = new JButton("Pause");
audioControlsPane.add(pauseAudioButton);
JPanel othersPane = new JPanel();
othersPane.setBorder(othersBorder);
toggleButton = new JToggleButton("Toggle Full Screen");
othersPane.add(toggleButton);
JPanel controlsPane = new JPanel();
controlsPane.add(videoControlsPane);
controlsPane.add(audioControlsPane);
controlsPane.add(othersPane);
contentPane.add(controlsPane, BorderLayout.SOUTH);
playButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().play();
}
});
pauseButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().pause();
}
});
rewindButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(-14000);
}
});
skipButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(4000);
}
});
playAudioButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
audioPlayerComponent.mediaPlayer().controls().play();
}
});
pauseAudioButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
audioPlayerComponent.mediaPlayer().controls().pause();
}
});
toggleButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().fullScreen().toggle();
}
});
this.setContentPane(contentPane);
this.setVisible(true);
}
public void loadVideo(String path) {
mediaPlayerComponent.mediaPlayer().media().startPaused(path);
mediaPlayerComponent.mediaPlayer().media().parsing().parse();
}
public void loadAudio(String path) {
audioPlayerComponent.mediaPlayer().media().startPaused(path);
}
public static void main( String[] args ){
try {
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e) {
System.out.println(e);
}
App application = new App(TITLE);
application.initialize();
application.setVisible(true);
application.loadVideo(VIDEO_PATH);
application.loadAudio(AUDIO_PATH);
}
}
通过右键单击文件并选择“以 Java 应用程序运行”来运行应用程序。如果一切正常，成功启动后，它应该显示以下结果：
现在点击全屏按钮，查看全屏视频。
vlcj - 音频均衡器
让我们进一步增强应用程序，我们将使用音频均衡器支持更新vlcj - 全屏视频章节。
创建音频均衡器
我们可以使用MediaPlayerFactory实例创建所有值为零的均衡器。
Equalizer equalizer = mediaPlayerComponent.mediaPlayerFactory().equalizer().newEqualizer();
获取预设均衡器值
以下代码获取预设均衡器名称，例如Flat、Classical、Club、Dance、Headphones等。
List<String> presetNames = factory.equalizer().presets();
使用预设均衡器。
Equalizer equalizer = mediaPlayerComponent.mediaPlayerFactory().equalizer().newEqualizer(presetName);
示例
打开在 环境设置 章节中创建的 Eclipse 中的 mediaPlayer 项目。
使用以下代码更新 App.java：
App.java
package com.tutorialspoint.media;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseWheelEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.List;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JToggleButton;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.border.Border;
import uk.co.caprica.vlcj.media.Media;
import uk.co.caprica.vlcj.media.MediaEventAdapter;
import uk.co.caprica.vlcj.media.MediaParsedStatus;
import uk.co.caprica.vlcj.media.TrackInfo;
import uk.co.caprica.vlcj.player.base.ChapterDescription;
import uk.co.caprica.vlcj.player.base.Equalizer;
import uk.co.caprica.vlcj.player.base.Logo;
import uk.co.caprica.vlcj.player.base.LogoPosition;
import uk.co.caprica.vlcj.player.base.Marquee;
import uk.co.caprica.vlcj.player.base.MarqueePosition;
import uk.co.caprica.vlcj.player.base.MediaPlayer;
import uk.co.caprica.vlcj.player.base.MediaPlayerEventAdapter;
import uk.co.caprica.vlcj.player.base.TitleDescription;
import uk.co.caprica.vlcj.player.base.TrackDescription;
import uk.co.caprica.vlcj.player.component.AudioPlayerComponent;
import uk.co.caprica.vlcj.player.component.EmbeddedMediaPlayerComponent;
import uk.co.caprica.vlcj.player.embedded.fullscreen.adaptive.AdaptiveFullScreenStrategy;
public class App extends JFrame {
private static final long serialVersionUID = 1L;
private static final String TITLE = "My First Media Player";
private static final String VIDEO_PATH = "D:\\Downloads\\sunset-beach.mp4";
private static final String AUDIO_PATH = "D:\\Downloads\\time-to-feel-good.mp3";
private static final String LOGO_PATH = "D:\\Downloads\\logo.png";
private final EmbeddedMediaPlayerComponent mediaPlayerComponent;
private final AudioPlayerComponent audioPlayerComponent;
private final Marquee marquee;
private final Logo logo;
private final Equalizer equalizer;
private JButton playButton;
private JButton pauseButton;
private JButton rewindButton;
private JButton skipButton;
private JButton playAudioButton;
private JButton pauseAudioButton;
private JToggleButton toggleButton;
private JButton equalizerButton;
public App(String title) {
super(title);
mediaPlayerComponent = new EmbeddedMediaPlayerComponent() {
@Override
public void mouseClicked(MouseEvent e) {
super.mouseClicked(e);
System.out.println("Mouse Clicked. (" + e.getX() + "," + e.getY() + ")");
}
@Override
public void mouseWheelMoved(MouseWheelEvent e) {
super.mouseWheelMoved(e);
System.out.println("Mouse wheel moved. " + e.getScrollAmount());
}
@Override
public void keyPressed(KeyEvent e) {
super.keyPressed(e);
System.out.println("Key pressed. " + e.getKeyCode());
}
@Override
public void playing(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback started.");
}
@Override
public void finished(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback finished.");
}
@Override
public void error(MediaPlayer mediaPlayer) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
System.out.println("Failed to load Media.");
}
});
}
};
audioPlayerComponent = new AudioPlayerComponent();
audioPlayerComponent.mediaPlayer().events().addMediaPlayerEventListener(new MediaPlayerEventAdapter() {
@Override
public void finished(MediaPlayer mediaPlayer) {
System.out.println("Audio Playback Finished.");
}
@Override
public void error(MediaPlayer mediaPlayer) {
System.out.println("Failed to load Audio.");
}
});
marquee = Marquee.marquee()
.text("TutorialsPoint")
.size(40)
.colour(Color.WHITE)
.position(MarqueePosition.BOTTOM_RIGHT)
.opacity(0.5f)
.enable();
mediaPlayerComponent.mediaPlayer().marquee().set(marquee);
logo = Logo.logo()
.file(LOGO_PATH)
.position(LogoPosition.TOP_LEFT)
.opacity(0.3f)
.enable();
mediaPlayerComponent.mediaPlayer().logo().set(logo);
mediaPlayerComponent.mediaPlayer().events().addMediaEventListener(new MediaEventAdapter() {
@Override
public void mediaParsedChanged(Media media,
MediaParsedStatus newStatus) {
if(newStatus == MediaParsedStatus.DONE) {
MediaPlayer mediaPlayer = mediaPlayerComponent.mediaPlayer();
List<TrackDescription> videoTracks = mediaPlayer.video().trackDescriptions();
System.out.println(videoTracks.get(1));
List<TitleDescription> titles = mediaPlayer.titles().titleDescriptions();
if(!titles.isEmpty()) {
System.out.println(titles.get(0));
}
List<ChapterDescription> chapters = mediaPlayer.chapters().descriptions();
if(!chapters.isEmpty()) {
System.out.println(chapters.get(0));
}
List<? extends TrackInfo> trackInfo = mediaPlayer.media().info().tracks();
if(!trackInfo.isEmpty()) {
System.out.println(trackInfo.get(0));
}
}
}
});
mediaPlayerComponent.mediaPlayer().fullScreen().strategy(new AdaptiveFullScreenStrategy(this));
List<String> presetNames = mediaPlayerComponent.mediaPlayerFactory().equalizer().presets();
System.out.println(presetNames);
equalizer = mediaPlayerComponent.mediaPlayerFactory().equalizer().newEqualizer("Dance");
}
public void initialize() {
this.setBounds(100, 100, 600, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
mediaPlayerComponent.release();
System.exit(0);
}
});
JPanel contentPane = new JPanel();
contentPane.setLayout(new BorderLayout());
contentPane.add(mediaPlayerComponent, BorderLayout.CENTER);
//Create a video border
Border videoBorder = BorderFactory.createTitledBorder("Video Controls");
//Create an audio border
Border audioBorder = BorderFactory.createTitledBorder("Audio Controls");
//Create others border
Border othersBorder = BorderFactory.createTitledBorder("Others");
JPanel videoControlsPane = new JPanel();
videoControlsPane.setBorder(videoBorder);
playButton = new JButton("Play");
videoControlsPane.add(playButton);
pauseButton = new JButton("Pause");
videoControlsPane.add(pauseButton);
rewindButton = new JButton("Rewind");
videoControlsPane.add(rewindButton);
skipButton = new JButton("Skip");
videoControlsPane.add(skipButton);
JPanel audioControlsPane = new JPanel();
audioControlsPane.setBorder(audioBorder);
playAudioButton = new JButton("Play");
audioControlsPane.add(playAudioButton);
pauseAudioButton = new JButton("Pause");
audioControlsPane.add(pauseAudioButton);
JPanel othersPane = new JPanel();
othersPane.setBorder(othersBorder);
toggleButton = new JToggleButton("Toggle Full Screen");
equalizerButton = new JButton("Equalizer");
othersPane.add(toggleButton);
othersPane.add(equalizerButton);
JPanel controlsPane = new JPanel();
controlsPane.add(videoControlsPane);
controlsPane.add(audioControlsPane);
controlsPane.add(othersPane);
controlsPane.setPreferredSize(new Dimension(400, 120));
contentPane.add(controlsPane, BorderLayout.SOUTH);
playButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().play();
}
});
pauseButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().pause();
}
});
rewindButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(-14000);
}
});
skipButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(4000);
}
});
playAudioButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
audioPlayerComponent.mediaPlayer().controls().play();
}
});
pauseAudioButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
audioPlayerComponent.mediaPlayer().controls().pause();
}
});
toggleButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().fullScreen().toggle();
}
});
equalizerButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().audio().setEqualizer(equalizer);
System.out.println("Using equalizer: " + equalizer);
}
});
this.setContentPane(contentPane);
this.setVisible(true);
}
public void loadVideo(String path) {
mediaPlayerComponent.mediaPlayer().media().startPaused(path);
mediaPlayerComponent.mediaPlayer().media().parsing().parse();
}
public void loadAudio(String path) {
audioPlayerComponent.mediaPlayer().media().startPaused(path);
}
public static void main( String[] args ){
try {
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e) {
System.out.println(e);
}
App application = new App(TITLE);
application.initialize();
application.setVisible(true);
application.loadVideo(VIDEO_PATH);
application.loadAudio(AUDIO_PATH);
}
}
通过右键单击文件并选择“以 Java 应用程序运行”来运行应用程序。如果一切正常，成功启动后，它应该显示以下结果：
现在点击均衡器按钮，在控制台中查看均衡器详细信息，如下所示。
[Flat, Classical, Club, Dance, Full bass, Full bass and treble, Full treble, Headphones, Large Hall, Live, Party, Pop, Reggae, Rock, Ska, Soft, Soft rock, Techno] TrackDescription[id=0,description=Track 1] VideoTrackInfo[codec=0x34363268,codecName=h264,originalCodec=0x31637661, originalCodecName=avc1,id=0,profile=-1,level=-1,bitRate=0,language=null, description=null,codecDescription=H264 - MPEG-4 AVC (part 10)] [width=596,height=336,sampleAspectRatio=1,sampleAspectRatioBase=1, frameRate=30000,frameRateBase=1001,orientation=TOP_LEFT, projection=RECTANGULAR,yaw=0.0,pitch=0.0,roll=0.0,fov=80.0,multiview=null] Media Playback started. TrackDescription[id=0,description=Track 1] VideoTrackInfo[codec=0x34363268,codecName=h264,originalCodec=0x31637661, originalCodecName=avc1,id=0,profile=-1,level=-1,bitRate=0,language=null, description=null,codecDescription=H264 - MPEG-4 AVC (part 10)] [width=596,height=336,sampleAspectRatio=1,sampleAspectRatioBase=1, frameRate=30000,frameRateBase=1001,orientation=TOP_LEFT,projection=RECTANGULAR, yaw=0.0,pitch=0.0,roll=0.0,fov=80.0,multiview=null] Using equalizer: Equalizer[preamp=5.0,bandAmps=[9.6, 7.2, 2.4, -1.11022E-15, -1.11022E-15, -5.6, -7.2, -7.2, -1.11022E-15, -1.11022E-15]]
vlcj - 叠加层
让我们进一步增强应用程序，我们将使用叠加支持更新vlcj - 音频均衡器章节。
创建叠加层
我们可以创建一个作为Swing窗口的叠加层，显示在视频之上。
class Overlay extends Window {
public Overlay(Window owner) {
super(owner, WindowUtils.getAlphaCompatibleGraphicsConfiguration());
setBackground(new Color(0, 0, 0, 0));
}
@Override
public void paint(Graphics g) {
super.paint(g);
}
}
创建并设置叠加层
以下代码为媒体设置叠加层。
Overlay overlay = new Overlay(this); mediaPlayerComponent.mediaPlayer().overlay().set(overlay);
根据需要启用/禁用叠加层。
mediaPlayerComponent.mediaPlayer().overlay().enable(overlayEnabled);
示例
打开在 环境设置 章节中创建的 Eclipse 中的 mediaPlayer 项目。
使用以下代码更新 App.java：
App.java
package com.tutorialspoint.media;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseWheelEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.List;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JToggleButton;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.border.Border;
import com.sun.jna.platform.WindowUtils;
import uk.co.caprica.vlcj.media.Media;
import uk.co.caprica.vlcj.media.MediaEventAdapter;
import uk.co.caprica.vlcj.media.MediaParsedStatus;
import uk.co.caprica.vlcj.media.TrackInfo;
import uk.co.caprica.vlcj.player.base.ChapterDescription;
import uk.co.caprica.vlcj.player.base.Equalizer;
import uk.co.caprica.vlcj.player.base.Logo;
import uk.co.caprica.vlcj.player.base.LogoPosition;
import uk.co.caprica.vlcj.player.base.Marquee;
import uk.co.caprica.vlcj.player.base.MarqueePosition;
import uk.co.caprica.vlcj.player.base.MediaPlayer;
import uk.co.caprica.vlcj.player.base.MediaPlayerEventAdapter;
import uk.co.caprica.vlcj.player.base.TitleDescription;
import uk.co.caprica.vlcj.player.base.TrackDescription;
import uk.co.caprica.vlcj.player.component.AudioPlayerComponent;
import uk.co.caprica.vlcj.player.component.EmbeddedMediaPlayerComponent;
import uk.co.caprica.vlcj.player.embedded.fullscreen.adaptive.AdaptiveFullScreenStrategy;
public class App extends JFrame {
private static final long serialVersionUID = 1L;
private static final String TITLE = "My First Media Player";
private static final String VIDEO_PATH = "D:\\Downloads\\sunset-beach.mp4";
private static final String AUDIO_PATH = "D:\\Downloads\\time-to-feel-good.mp3";
private static final String LOGO_PATH = "D:\\Downloads\\logo.png";
private final EmbeddedMediaPlayerComponent mediaPlayerComponent;
private final AudioPlayerComponent audioPlayerComponent;
private final Marquee marquee;
private final Logo logo;
private final Equalizer equalizer;
private final Overlay overlay;
private boolean overlayEnabled = false;
private JButton playButton;
private JButton pauseButton;
private JButton rewindButton;
private JButton skipButton;
private JButton playAudioButton;
private JButton pauseAudioButton;
private JToggleButton toggleButton;
private JButton equalizerButton;
private JToggleButton overlayButton;
public App(String title) {
super(title);
mediaPlayerComponent = new EmbeddedMediaPlayerComponent() {
@Override
public void mouseClicked(MouseEvent e) {
super.mouseClicked(e);
System.out.println("Mouse Clicked. (" + e.getX() + "," + e.getY() + ")");
}
@Override
public void mouseWheelMoved(MouseWheelEvent e) {
super.mouseWheelMoved(e);
System.out.println("Mouse wheel moved. " + e.getScrollAmount());
}
@Override
public void keyPressed(KeyEvent e) {
super.keyPressed(e);
System.out.println("Key pressed. " + e.getKeyCode());
}
@Override
public void playing(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback started.");
}
@Override
public void finished(MediaPlayer mediaPlayer) {
super.playing(mediaPlayer);
System.out.println("Media Playback finished.");
}
@Override
public void error(MediaPlayer mediaPlayer) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
System.out.println("Failed to load Media.");
}
});
}
};
audioPlayerComponent = new AudioPlayerComponent();
audioPlayerComponent.mediaPlayer().events().addMediaPlayerEventListener(new MediaPlayerEventAdapter() {
@Override
public void finished(MediaPlayer mediaPlayer) {
System.out.println("Audio Playback Finished.");
}
@Override
public void error(MediaPlayer mediaPlayer) {
System.out.println("Failed to load Audio.");
}
});
marquee = Marquee.marquee()
.text("TutorialsPoint")
.size(40)
.colour(Color.WHITE)
.position(MarqueePosition.BOTTOM_RIGHT)
.opacity(0.5f)
.enable();
mediaPlayerComponent.mediaPlayer().marquee().set(marquee);
logo = Logo.logo()
.file(LOGO_PATH)
.position(LogoPosition.TOP_LEFT)
.opacity(0.3f)
.enable();
mediaPlayerComponent.mediaPlayer().logo().set(logo);
mediaPlayerComponent.mediaPlayer().events().addMediaEventListener(new MediaEventAdapter() {
@Override
public void mediaParsedChanged(Media media,
MediaParsedStatus newStatus) {
if(newStatus == MediaParsedStatus.DONE) {
MediaPlayer mediaPlayer = mediaPlayerComponent.mediaPlayer();
List<TrackDescription> videoTracks = mediaPlayer.video().trackDescriptions();
System.out.println(videoTracks.get(1));
List<TitleDescription> titles = mediaPlayer.titles().titleDescriptions();
if(!titles.isEmpty()) {
System.out.println(titles.get(0));
}
List<ChapterDescription> chapters = mediaPlayer.chapters().descriptions();
if(!chapters.isEmpty()) {
System.out.println(chapters.get(0));
}
List<? extends TrackInfo> trackInfo = mediaPlayer.media().info().tracks();
if(!trackInfo.isEmpty()) {
System.out.println(trackInfo.get(0));
}
}
}
});
mediaPlayerComponent.mediaPlayer().fullScreen().strategy(new AdaptiveFullScreenStrategy(this));
List<String> presetNames = mediaPlayerComponent.mediaPlayerFactory().equalizer().presets();
System.out.println(presetNames);
equalizer = mediaPlayerComponent.mediaPlayerFactory().equalizer().newEqualizer("Dance");
overlay = new Overlay(this);
mediaPlayerComponent.mediaPlayer().overlay().set(overlay);
}
public void initialize() {
this.setBounds(100, 100, 600, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
mediaPlayerComponent.release();
System.exit(0);
}
});
JPanel contentPane = new JPanel();
contentPane.setLayout(new BorderLayout());
contentPane.add(mediaPlayerComponent, BorderLayout.CENTER);
//Create a video border
Border videoBorder = BorderFactory.createTitledBorder("Video Controls");
//Create an audio border
Border audioBorder = BorderFactory.createTitledBorder("Audio Controls");
//Create others border
Border othersBorder = BorderFactory.createTitledBorder("Others");
JPanel videoControlsPane = new JPanel();
videoControlsPane.setBorder(videoBorder);
playButton = new JButton("Play");
videoControlsPane.add(playButton);
pauseButton = new JButton("Pause");
videoControlsPane.add(pauseButton);
rewindButton = new JButton("Rewind");
videoControlsPane.add(rewindButton);
skipButton = new JButton("Skip");
videoControlsPane.add(skipButton);
JPanel audioControlsPane = new JPanel();
audioControlsPane.setBorder(audioBorder);
playAudioButton = new JButton("Play");
audioControlsPane.add(playAudioButton);
pauseAudioButton = new JButton("Pause");
audioControlsPane.add(pauseAudioButton);
JPanel othersPane = new JPanel();
othersPane.setBorder(othersBorder);
toggleButton = new JToggleButton("Toggle Full Screen");
equalizerButton = new JButton("Equalizer");
overlayButton = new JToggleButton("Toggle Overlay");
othersPane.add(toggleButton);
othersPane.add(equalizerButton);
othersPane.add(overlayButton);
JPanel controlsPane = new JPanel();
controlsPane.add(videoControlsPane);
controlsPane.add(audioControlsPane);
controlsPane.add(othersPane);
controlsPane.setPreferredSize(new Dimension(400, 120));
contentPane.add(controlsPane, BorderLayout.SOUTH);
playButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().play();
}
});
pauseButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().pause();
}
});
rewindButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(-14000);
}
});
skipButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().controls().skipTime(4000);
}
});
playAudioButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
audioPlayerComponent.mediaPlayer().controls().play();
}
});
pauseAudioButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
audioPlayerComponent.mediaPlayer().controls().pause();
}
});
toggleButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().fullScreen().toggle();
}
});
equalizerButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mediaPlayerComponent.mediaPlayer().audio().setEqualizer(equalizer);
System.out.println("Using equalizer: " + equalizer);
}
});
overlayButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
overlayEnabled = !overlayEnabled;
mediaPlayerComponent.mediaPlayer().overlay().enable(overlayEnabled);
}
});
this.setContentPane(contentPane);
this.setVisible(true);
}
public void loadVideo(String path) {
mediaPlayerComponent.mediaPlayer().media().startPaused(path);
mediaPlayerComponent.mediaPlayer().media().parsing().parse();
}
public void loadAudio(String path) {
audioPlayerComponent.mediaPlayer().media().startPaused(path);
}
public static void main( String[] args ){
try {
UIManager.setLookAndFeel(
UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e) {
System.out.println(e);
}
App application = new App(TITLE);
application.initialize();
application.setVisible(true);
application.loadVideo(VIDEO_PATH);
application.loadAudio(AUDIO_PATH);
}
}
class Overlay extends Window {
public Overlay(Window owner) {
super(owner, WindowUtils.getAlphaCompatibleGraphicsConfiguration());
setBackground(new Color(0, 0, 0, 0));
}
@Override
public void paint(Graphics g) {
super.paint(g);
Graphics2D g2 = (Graphics2D)g;
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
GradientPaint gp = new GradientPaint(
180.0f, 280.0f,
new Color(255, 255, 255, 255),
250.0f,
380.0f,
new Color(255, 255, 0, 0)
);
g2.setPaint(gp);
g2.setFont(new Font("Serif", Font.PLAIN,32));
g2.drawString("TutorialsPoint",200, 200);
}
}
通过右键单击文件并选择“以 Java 应用程序运行”来运行应用程序。如果一切正常，成功启动后，它应该显示以下结果：
现在点击切换叠加层按钮，查看视频上的叠加文本，如下所示。
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