「javaio视频」JAVAios

admin 2023-01-13 17:09:07 270

今天给各位分享javaio视频的知识，其中也会对JAVAios进行解释，如果能碰巧解决你现在面临的问题，别忘了关注本站，现在开始吧！

本文目录一览：

1、用java做音视频播放器
2、初学了一段时间Java。想做一个应用程序，程序只需要播放一个本地视频,MP4格式，求教怎么做
3、看了mars老师的java视频，关于io的输入输出遇到问题了，请高手指点指点
4、java IO流分割视频等分

用java做音视频播放器

我做过一个MP3的..给你看看.

package music;

import java.awt.*;

import java.awt.event.*;

import java.io.*;

import java.util.*;

import javax.swing.*;

import javax.media.bean.playerbean.*; //这个包要用到JMF

public class MP3 extends JFrame implements Runnable {

public JLabel shijian;

private JSlider sldDiameter;

public MediaPlayer soumd1;

public JButton playSound, loopSound, stopsound;

public JButton tjian, shanc, baocun, duqu;

public JPanel jp1, jp2, jp3, jp4;

public JList jl;

int zongmiao=0;

public Vector vector, mingcheng;

boolean fo = false, geshi = false;

JLabel jl1, jl2, sj1, sj2;

JTextField jt1, jt2;

JButton queding, xiugai;

int zong = 0;

int a = 0, b = 0, you = 1,mm=0;

int fenzhong, miaozhong;

public MP3() {

super(“java简单音乐播放器“);

soumd1 = new MediaPlayer();

Container c = getContentPane();

c.setLayout(new FlowLayout());

mingcheng = new Vector();

jp1 = new JPanel();

shijian = new JLabel();

jp1.add(shijian);

c.add(jp1);

playSound = new JButton(“开始播放“);

loopSound = new JButton(“循环播放“);

stopsound = new JButton(“停止播放“);

jp2 = new JPanel();

jp2.add(playSound);

jp2.add(loopSound);

jp2.add(stopsound);

c.add(jp2);

jp4 = new JPanel();

sj1 = new JLabel();

sj2 = new JLabel();

sldDiameter = new JSlider(SwingConstants.HORIZONTAL, 0, 100, 0);

sldDiameter.setMajorTickSpacing(1);

sldDiameter.setPaintTicks(true);

jp4.add(sj1);

jp4.add(sldDiameter);

jp4.add(sj2);

c.add(jp4);

vector = new Vector();

jl = new JList(mingcheng);

jl.setVisibleRowCount(5);

jl.setFixedCellHeight(40);

jl.setFixedCellWidth(265);

jl.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

c.add(new JScrollPane(jl));

tjian = new JButton(“添加“);

shanc = new JButton(“删除“);

duqu = new JButton(“读取“);

baocun = new JButto

摘选自网上，希望对你有帮助。

初学了一段时间Java。想做一个应用程序，程序只需要播放一个本地视频,MP4格式，求教怎么做

使用javafx的Media，MediaPlayer，MediaView。代码如下：

import java.io.File;

import javafx.application.Application;

import javafx.beans.binding.Bindings;

import javafx.beans.property.ReadOnlyProperty;

import javafx.beans.value.ObservableValue;

import javafx.event.ActionEvent;

import javafx.geometry.Pos;

import javafx.scene.Scene;

import javafx.scene.control.Button;

import javafx.scene.control.Menu;

import javafx.scene.control.MenuBar;

import javafx.scene.control.MenuItem;

import javafx.scene.control.Slider;

import javafx.scene.image.Image;

import javafx.scene.image.ImageView;

import javafx.scene.layout.BorderPane;

import javafx.scene.layout.HBox;

import javafx.scene.layout.Pane;

import javafx.scene.layout.VBox;

import javafx.scene.media.Media;

import javafx.scene.media.MediaPlayer;

import javafx.scene.media.MediaPlayer.Status;

import javafx.scene.media.MediaView;

import javafx.stage.FileChooser;

import javafx.stage.FileChooser.ExtensionFilter;

import javafx.stage.Stage;

import javafx.util.Duration;

public class App extends Application {

private MediaView mediaView;

private Slider processSlider;

private static final Object AUTO = new Object(), MANUAL = new Object();

public static void main(String[] args) {

launch(args);

}

@Override

public void start(Stage primaryStage) throws Exception {

primaryStage.setTitle("javafx视频播放器");

BorderPane root = new BorderPane();

// 菜单栏

initMenu(root);

// 视频播放控件

mediaView = initMediaView(root);

// 视频功能控件

initMediaControllView(root);

primaryStage.setScene(new Scene(root, 600, 400));

primaryStage.setOnCloseRequest(event - System.exit(0));

primaryStage.show();

}

private MenuBar initMenu(final BorderPane parent) {

Menu menu = new Menu("菜单");

MenuItem item = new MenuItem("打开");

item.setOnAction(event - {

FileChooser chooser = new FileChooser();

chooser.setTitle("选择视频文件");

chooser.getExtensionFilters().add(new ExtensionFilter("视频文件", "*.mp4", "*.flv"));

File file = chooser.showOpenDialog(parent.getScene().getWindow());

if (file != null) {

MediaPlayer player = mediaView.getMediaPlayer();

// 关闭当前的player

if (player != null) {

player.stop();

player.dispose();

}

processSlider.setValue(0);

// 创建一个新的player并自动播放

player = new MediaPlayer(new Media(file.toURI().toString()));

player.currentTimeProperty().addListener(this::mediaProcessChanged);

player.setAutoPlay(true);

mediaView.setMediaPlayer(player);

}

});

menu.getItems().add(item);

item = new MenuItem("退出");

item.setOnAction(event - parent.getScene().getWindow().hide());

menu.getItems().add(item);

MenuBar menuBar = new MenuBar(menu);

parent.setTop(menuBar);

return menuBar;

}

private MediaView initMediaView(final BorderPane parent) {

MediaView view = new MediaView();

Pane pane = new Pane(view);

parent.setCenter(pane);

// 视频宽高可随着窗口变化而自动缩放

view.fitWidthProperty().bind(Bindings.selectDouble(view.parentProperty(), "width"));

view.fitHeightProperty().bind(Bindings.selectDouble(view.parentProperty(), "height"));

view.setPreserveRatio(true);

return view;

}

private void initMediaControllView(final BorderPane parent) {

VBox bottom = new VBox(10);

bottom.setAlignment(Pos.CENTER);

parent.setBottom(bottom);

Slider slider = new Slider(0, 100, 0);

slider.valueProperty().addListener(this::processSliderChanged);

// slider.setOnMouseClicked(this::processSliderClicked);

bottom.getChildren().add(slider);

processSlider = slider;

HBox hbox = new HBox(10);

bottom.getChildren().add(hbox);

hbox.setAlignment(Pos.CENTER);

Button btn = new Button(null, new ImageView(loadImage("pause.png")));

btn.setOnAction(this::pauseOrPlay);

hbox.getChildren().add(btn);

btn = new Button(null, new ImageView(loadImage("stop.png")));

btn.setOnAction(this::stopPlay);

hbox.getChildren().add(btn);

}

private static Image loadImage(String resPath) {

return new Image(Thread.currentThread().getContextClassLoader().getResourceAsStream(resPath));

}

private void pauseOrPlay(ActionEvent event) {

MediaPlayer player = mediaView.getMediaPlayer();

if (player == null) {

return;

}

Status status = player.getStatus();

if (status == Status.READY || status == Status.PAUSED) {

player.play();

((Button) event.getTarget()).setGraphic(new ImageView(loadImage("pause.png")));

} else if (status == Status.PLAYING) {

player.pause();

((Button) event.getTarget()).setGraphic(new ImageView(loadImage("play.png")));

}

private void stopPlay(ActionEvent event) {

MediaPlayer player = mediaView.getMediaPlayer();

if (player == null) {

return;

}

player.stop();

}

// private void processSliderClicked(MouseEvent event) {

// Slider slider = (Slider) event.getSource();

// if (mediaView.getMediaPlayer() != null) {

// Duration d = mediaView.getMediaPlayer().getTotalDuration().multiply(slider.getValue() / slider.getMax());

// mediaView.getMediaPlayer().seek(d);

// }

private void processSliderChanged(ObservableValue? extends Number observable, Number oldValue, Number newValue) {

Slider slider = (Slider) ((ReadOnlyProperty? extends Number) observable).getBean();

if (slider.getUserData() == AUTO) { // 进度条是自动改变的，因此不用设置播放器

slider.setUserData(null);

return;

}

if (mediaView.getMediaPlayer() != null) {

slider.setUserData(MANUAL);

Duration d = mediaView.getMediaPlayer().getTotalDuration().multiply(newValue.doubleValue() / slider.getMax());

mediaView.getMediaPlayer().seek(d);

}

private void mediaProcessChanged(ObservableValue? extends Duration observable, Duration oldValue, Duration newValue) {

if (processSlider.getUserData() == MANUAL) { // 手动点击进度条

processSlider.setUserData(null);

return;

}

MediaPlayer player = (MediaPlayer) ((ReadOnlyProperty? extends Duration) observable).getBean();

processSlider.setUserData(AUTO);

processSlider.setValue(newValue.toMillis() / player.getTotalDuration().toMillis() * 100);

}

看了mars老师的java视频，关于io的输入输出遇到问题了，请高手指点指点

《mars java开发视频》百度网盘资源免费下载

链接:

提取码:6eug

java IO流分割视频等分

rmvb等视频容器格式的文件头部有播放必要的元信息。不该被简单截断。

需要用格式对应的工具。

javaio视频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JAVAios、javaio视频的信息别忘了在本站进行查找喔。

标签：javaio视频