「java实现hls」JAVA实现链表
本篇文章给大家谈谈java实现hls，以及JAVA实现链表对应的知识点，希望对各位有所帮助，不要忘了收藏本站喔。
本文目录一览：
Java怎么实现音乐播放
java swt实现播放音乐代码如下：
public void play(String Filename)
{
try{
// 用输入流打开一音频文件
InputStream in = new FileInputStream(Filename);//FIlename 是你加载的声音文件如(“game.wav”)
// 从输入流中创建一个AudioStream对象
AudioStream as = new AudioStream(in);
AudioPlayer.player.start(as);//用静态成员player.start播放音乐
//AudioPlayer.player.stop(as);//关闭音乐播放
//如果要实现循环播放，则用下面的三句取代上面的“AudioPlayer.player.start(as);”这句
/*AudioData data = as.getData();
ContinuousAudioDataStream gg= new ContinuousAudioDataStream (data);
AudioPlayer.player.start(gg);// Play audio.
*/
//如果要用一个 URL 做为声音流的源(source)，则用下面的代码所示替换输入流来创建声音流：
/*AudioStream as = new AudioStream (url.openStream());
*/
} catch(FileNotFoundException e){
System.out.print("FileNotFoundException ");
} catch(IOException e){
System.out.print("有错误!");
}
}
hls怎么调用代码
整个项目的结构图：
编写DetectFaceDemo.java,代码如下：
[java] view
plaincopyprint?
package com.njupt.zhb.test;
import org.opencv.core.Core;
import org.opencv.core.Mat;
import org.opencv.core.MatOfRect;
import org.opencv.core.Point;
import org.opencv.core.Rect;
import org.opencv.core.Scalar;
import org.opencv.highgui.Highgui;
import org.opencv.objdetect.CascadeClassifier;
//
// Detects faces in an image, draws boxes around them, and writes the results
// to "faceDetection.png".
//
public class DetectFaceDemo {
public void run() {
System.out.println("\nRunning DetectFaceDemo");
System.out.println(getClass().getResource("lbpcascade_frontalface.xml").getPath());
// Create a face detector from the cascade file in the resources
// directory.
//CascadeClassifier faceDetector = new CascadeClassifier(getClass().getResource("lbpcascade_frontalface.xml").getPath());
//Mat image = Highgui.imread(getClass().getResource("lena.png").getPath());
//注意：源程序的路径会多打印一个‘/’，因此总是出现如下错误
/*
* Detected 0 faces Writing faceDetection.png libpng warning: Image
* width is zero in IHDR libpng warning: Image height is zero in IHDR
* libpng error: Invalid IHDR data
*/
//因此，我们将第一个字符去掉
String xmlfilePath=getClass().getResource("lbpcascade_frontalface.xml").getPath().substring(1);
CascadeClassifier faceDetector = new CascadeClassifier(xmlfilePath);
Mat image = Highgui.imread(getClass().getResource("we.jpg").getPath().substring(1));
// Detect faces in the image.
// MatOfRect is a special container class for Rect.
MatOfRect faceDetections = new MatOfRect();
faceDetector.detectMultiScale(image, faceDetections);
System.out.println(String.format("Detected %s faces", faceDetections.toArray().length));
// Draw a bounding box around each face.
for (Rect rect : faceDetections.toArray()) {
Core.rectangle(image, new Point(rect.x, rect.y), new Point(rect.x + rect.width, rect.y + rect.height), new Scalar(0, 255, 0));
}
// Save the visualized detection.
String filename = "faceDetection.png";
System.out.println(String.format("Writing %s", filename));
Highgui.imwrite(filename, image);
}
}
package com.njupt.zhb.test;
import org.opencv.core.Core;
import org.opencv.core.Mat;
import org.opencv.core.MatOfRect;
import org.opencv.core.Point;
import org.opencv.core.Rect;
import org.opencv.core.Scalar;
import org.opencv.highgui.Highgui;
import org.opencv.objdetect.CascadeClassifier;
//
// Detects faces in an image, draws boxes around them, and writes the results
// to "faceDetection.png".
//
public class DetectFaceDemo {
public void run() {
System.out.println("\nRunning DetectFaceDemo");
System.out.println(getClass().getResource("lbpcascade_frontalface.xml").getPath());
// Create a face detector from the cascade file in the resources
// directory.
//CascadeClassifier faceDetector = new CascadeClassifier(getClass().getResource("lbpcascade_frontalface.xml").getPath());
//Mat image = Highgui.imread(getClass().getResource("lena.png").getPath());
//注意：源程序的路径会多打印一个‘/’，因此总是出现如下错误
/*
* Detected 0 faces Writing faceDetection.png libpng warning: Image
* width is zero in IHDR libpng warning: Image height is zero in IHDR
* libpng error: Invalid IHDR data
*/
//因此，我们将第一个字符去掉
String xmlfilePath=getClass().getResource("lbpcascade_frontalface.xml").getPath().substring(1);
CascadeClassifier faceDetector = new CascadeClassifier(xmlfilePath);
Mat image = Highgui.imread(getClass().getResource("we.jpg").getPath().substring(1));
// Detect faces in the image.
// MatOfRect is a special container class for Rect.
MatOfRect faceDetections = new MatOfRect();
faceDetector.detectMultiScale(image, faceDetections);
System.out.println(String.format("Detected %s faces", faceDetections.toArray().length));
// Draw a bounding box around each face.
for (Rect rect : faceDetections.toArray()) {
Core.rectangle(image, new Point(rect.x, rect.y), new Point(rect.x + rect.width, rect.y + rect.height), new Scalar(0, 255, 0));
}
// Save the visualized detection.
String filename = "faceDetection.png";
System.out.println(String.format("Writing %s", filename));
Highgui.imwrite(filename, image);
}
}
3.编写测试类：
[java] view
plaincopyprint?
package com.njupt.zhb.test;
public class TestMain {
public static void main(String[] args) {
System.out.println("Hello, OpenCV");
// Load the native library.
System.loadLibrary("opencv_java246");
new DetectFaceDemo().run();
}
}
//运行结果:
//Hello, OpenCV
//
//Running DetectFaceDemo
///E:/eclipse_Jee/workspace/JavaOpenCV246/bin/com/njupt/zhb/test/lbpcascade_frontalface.xml
//Detected 8 faces
//Writing faceDetection.png
package com.njupt.zhb.test;
public class TestMain {
public static void main(String[] args) {
System.out.println("Hello, OpenCV");
// Load the native library.
System.loadLibrary("opencv_java246");
new DetectFaceDemo().run();
}
}
//运行结果:
//Hello, OpenCV
//
//Running DetectFaceDemo
///E:/eclipse_Jee/workspace/JavaOpenCV246/bin/com/njupt/zhb/test/lbpcascade_frontalface.xml
//Detected 8 faces
//Writing faceDetection.png
如何在java中实现hbase接口
使用maven+idea进行管理
maven
dependency groupIdlog4j/groupId artifactIdlog4j/artifactId version1.2.17/version /dependency
dependency groupIdorg.apache.hbase/groupId artifactIdhbase-shaded-client/artifactId version1.2.3/version /dependency
java怎样实现打开视频文件
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;
import javax.swing.*;
import javax.media.*;
// 视频播放程序
public class VideoPlayDemo extends JFrame {
private Player player; // 播放器对象
private Component visualMedia; // 视频显示组件
private Component mediaControl; // 视频播放控制组件
private Container container; // 主容器
private File mediaFile; //媒体文件
private URL fileURL; //媒体文件URL地址
public VideoPlayDemo() { // 构造函数
super("视频播放程序"); //调用父类构造函数
container = getContentPane(); //得到窗口容器
JToolBar toobar = new JToolBar(); //实例化工具栏
JButton openFile = new JButton("打开媒体文件"); //实例化按钮
toobar.add(openFile); //增加按钮到工具栏
JButton openURL = new JButton("打开网络地址");
toobar.add(openURL);
container.add(toobar, BorderLayout.NORTH); //设置工具栏
openFile.addActionListener(new ActionListener() { //打开文件按钮事件处理
public void actionPerformed(ActionEvent event) {
JFileChooser fileChooser = new JFileChooser(); //实例化文件选择器
fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);//设置文件打开模式为仅打开文件
int result = fileChooser.showOpenDialog(VideoPlayDemo.this);//显示对话框
if (result == JFileChooser.APPROVE_OPTION) { //得到用户行为
mediaFile = fileChooser.getSelectedFile(); //得到选择的文件
}
if (mediaFile != null) {
try {
fileURL = mediaFile.toURL(); //得到文件的URL地址
} catch (MalformedURLException ex) {
ex.printStackTrace(); //输出错误信息
showMessage("打开错误"); //显示错误信息
JAVA 实现音频播放
这个程序只要写对了音乐文件的URL地址，例如：new URL("file:/C:/tmp/1/Windows Ding.wav");
就可以播放音乐，除了可以播放.wav格式的音乐，还可以播放.au格式的音乐。
另外，如果你不希望音乐循环播放，你可以去掉audio1.loop();这一语句。
import java.applet.AudioClip;
import java.net.MalformedURLException;
import java.net.URL;
import javax.swing.JFrame;
public class D extends JFrame{
D(){
setSize(200,200);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
URL codebase=null;
try {
codebase = new URL("file:/C:/tmp/1/Windows Ding.wav");
} catch (MalformedURLException e) {
e.printStackTrace();
}
AudioClip audio1=Applet.newAudioClip(codebase);
audio1.loop();
}
public static void main(String[] args) {
new D();
}
}
java实现hls的介绍就聊到这里吧，感谢你花时间阅读本站内容，更多关于JAVA实现链表、java实现hls的信息别忘了在本站进行查找喔。