javafx媒体可以播放mp4格式的视频文件吗？
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我正在尝试使用javafx媒体播放视频。但是我无法在本地机器视频中播放视频。我尝试使用默认的AdvancedMedia.java文件javafx Ensemble.jar文件。我复制了相同的文件代码并粘贴在我的Eclipse中。在那里也玩了几秒钟和弯腰。几秒钟。但如果我在本地计算机上提供任何.mp4格式文件，它不会播放默认媒体文件位置，也不会出错。
我在下面放置代码
/**
* Copyright (c) 2008, 2012 Oracle and/or its affiliates.
* All rights reserved. Use is subject to license terms.
*/
import java.io.File;
import java.net.URI;
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.stage.Stage;
import javafx.application.Platform;
import javafx.beans.InvalidationListener;
import javafx.beans.Observable;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.Slider;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Pane;
import javafx.scene.layout.Priority;
import javafx.scene.layout.Region;
import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;
import javafx.scene.media.MediaPlayer.Status;
import javafx.scene.media.MediaView;
import javafx.util.Duration;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.stage.Stage;
/**
* An advanced media player with controls for play/pause, seek, and volume.
*
* @see javafx.scene.media.MediaPlayer
* @see javafx.scene.media.Media
*/
public class AdvancedMedia extends Application {
private static final String MEDIA_URL =// "file:///D:/sri1/test.mp4";
//private static final String MEDIA_URL = "http://download.oracle.com/otndocs/products/javafx/oow2010-2.flv";
"http://download.oracle.com/otndocs/products/javafx/oow2010-2.flv";
private MediaPlayer mediaPlayer;
private AdvancedMedia.MediaControl mediaControl;
private void init(Stage primaryStage) {
Group root = new Group();
primaryStage.setScene(new Scene(root));
mediaPlayer = new MediaPlayer(new Media(MEDIA_URL));
mediaPlayer.setAutoPlay(true);
mediaControl = new AdvancedMedia.MediaControl(mediaPlayer);
mediaControl.setMinSize(480,280);
mediaControl.setPrefSize(480,280);
mediaControl.setMaxSize(480,280);
root.getChildren().add(mediaControl);
}
public void play() {
Status status = mediaPlayer.getStatus();
if (status == Status.UNKNOWN
|| status == Status.HALTED)
{
//System.out.println("Player is in a bad or unknown state, can't play.");
return;
}
if (status == Status.PAUSED
|| status == Status.STOPPED
|| status == Status.READY)
{
mediaPlayer.play();
}
}
@Override public void stop() {
mediaPlayer.stop();
}
public class MediaControl extends BorderPane {
private MediaPlayer mp;
private MediaView mediaView;
private final boolean repeat = false;
private boolean stopRequested = false;
private boolean atEndOfMedia = false;
private Duration duration;
private Slider timeSlider;
private Label playTime;
private Slider volumeSlider;
private HBox mediaBar;
private final Image PlayButtonImage = new Image("file:///D:/sri/UpgradeReport_Plus.gif");
ImageView imageViewPlay = new ImageView(PlayButtonImage);
//URI x=new URI("file:///D:/deepak/DEEP PHOTO.jpg");
File f=new File("file:///D:/sri/UpgradeReport_Plus.gif");
URI u=f.toURI();
private final Image PauseButtonImage = new Image(u.toString());
ImageView imageViewPause = new ImageView(PauseButtonImage);
private Pane mvPane;
private Stage newStage;
private boolean fullScreen = false;
@Override protected void layoutChildren() {
if (mediaView != null && getBottom() != null) {
mediaView.setFitWidth(getWidth());
mediaView.setFitHeight(getHeight() - getBottom().prefHeight(-1));
}
super.layoutChildren();
if (mediaView != null && getCenter() != null) {
mediaView.setTranslateX((((Pane)getCenter()).getWidth() - mediaView.prefWidth(-1)) / 2);
mediaView.setTranslateY((((Pane)getCenter()).getHeight() - mediaView.prefHeight(-1)) / 2);
}
}
@Override protected double computeMinWidth(double height) {
return mediaBar.prefWidth(-1);
}
@Override protected double computeMinHeight(double width) {
return 200;
}
@Override protected double computePrefWidth(double height) {
return Math.max(mp.getMedia().getWidth(), mediaBar.prefWidth(height));
}
@Override protected double computePrefHeight(double width) {
return mp.getMedia().getHeight() + mediaBar.prefHeight(width);
}
@Override protected double computeMaxWidth(double height) { return Double.MAX_VALUE; }
@Override protected double computeMaxHeight(double width) { return Double.MAX_VALUE; }
public MediaControl(final MediaPlayer mp) {
this.mp=mp;
setStyle("-fx-background-color: #bfc2c7;"); // TODO: Use css file
mediaView = new MediaView(mp);
mvPane = new Pane();
mvPane.getChildren().add(mediaView);
mvPane.setStyle("-fx-background-color: black;"); // TODO: Use css file
setCenter(mvPane);
mediaBar = new HBox(5.0);
mediaBar.setPadding(new Insets(5, 10, 5, 10));
mediaBar.setAlignment(Pos.CENTER_LEFT);
BorderPane.setAlignment(mediaBar, Pos.CENTER);
final Button playButton = ButtonBuilder.create()
.minWidth(Control.USE_PREF_SIZE)
.build();
playButton.setGraphic(imageViewPlay);
playButton.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent e) {
updateValues();
Status status = mp.getStatus();
if (status == Status.UNKNOWN
|| status == Status.HALTED)
{
// don't do anything in these states
return;
}
if (status == Status.PAUSED
|| status == Status.READY
|| status == Status.STOPPED)
{
// rewind the movie if we're sitting at the end
if (atEndOfMedia) {
mp.seek(mp.getStartTime());
atEndOfMedia = false;
playButton.setGraphic(imageViewPlay);
//playButton.setText(">");
updateValues();
}
mp.play();
playButton.setGraphic(imageViewPause);
//playButton.setText("||");
}
else {
mp.pause();
}
}
});
mp.currentTimeProperty().addListener(new ChangeListener<Duration>() {
@Override
public void changed(ObservableValue<? extends Duration> observable, Duration oldValue, Duration newValue) {
updateValues();
}
});
mp.setOnPlaying(new Runnable() {
public void run() {
if (stopRequested) {
mp.pause();
stopRequested = false;
} else {
playButton.setGraphic(imageViewPause);
//playButton.setText("||");
}
}
});
mp.setOnPaused(new Runnable() {
public void run() {
playButton.setGraphic(imageViewPlay);
//playButton.setText("||");
}
});
mp.setOnReady(new Runnable() {
public void run() {
duration = mp.getMedia().getDuration();
updateValues();
}
});
mp.setCycleCount(repeat ? MediaPlayer.INDEFINITE : 1);
mp.setOnEndOfMedia(new Runnable() {
public void run() {
if (!repeat) {
playButton.setGraphic(imageViewPlay);
//playButton.setText(">");
stopRequested = true;
atEndOfMedia = true;
}
}
});
mediaBar.getChildren().add(playButton);
// Time label
Label timeLabel = new Label("Time");
timeLabel.setMinWidth(Control.USE_PREF_SIZE);
mediaBar.getChildren().add(timeLabel);
// Time slider
timeSlider = SliderBuilder.create()
.minWidth(30)
.maxWidth(Double.MAX_VALUE)
.build();
HBox.setHgrow(timeSlider, Priority.ALWAYS);
timeSlider.valueProperty().addListener(new InvalidationListener() {
public void invalidated(Observable ov) {
if (timeSlider.isValueChanging()) {
// multiply duration by percentage calculated by slider position
if(duration!=null) {
mp.seek(duration.multiply(timeSlider.getValue() / 100.0));
}
updateValues();
}
}
});
mediaBar.getChildren().add(timeSlider);
// Play label
playTime = LabelBuilder.create()
//.prefWidth(130)
.minWidth(Control.USE_PREF_SIZE)
.build();
mediaBar.getChildren().add(playTime);
//Fullscreen button
Button buttonFullScreen = ButtonBuilder.create()
.text("Full Screen")
.minWidth(Control.USE_PREF_SIZE)
.build();
buttonFullScreen.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
if (!fullScreen){
newStage = new Stage();
newStage.fullScreenProperty().addListener(new ChangeListener<Boolean>() {
@Override public void changed(ObservableValue<? extends Boolean> ov, Boolean t, Boolean t1) {
onFullScreen();
}
});
final BorderPane borderPane = new BorderPane(){
@Override protected void layoutChildren(){
if (mediaView != null && getBottom() != null) {
mediaView.setFitWidth(getWidth());
mediaView.setFitHeight(getHeight() - getBottom().prefHeight(-1));
}
super.layoutChildren();
if (mediaView != null) {
mediaView.setTranslateX((((Pane)getCenter()).getWidth() - mediaView.prefWidth(-1)) / 2);
mediaView.setTranslateY((((Pane)getCenter()).getHeight() - mediaView.prefHeight(-1)) / 2);
}
};
};
setCenter(null);
setBottom(null);
borderPane.setCenter(mvPane);
borderPane.setBottom(mediaBar);
Scene newScene = new Scene(borderPane);
newStage.setScene(newScene);
//Workaround for disposing stage when exit fullscreen
newStage.setX(-100000);
newStage.setY(-100000);
newStage.setFullScreen(true);
fullScreen = true;
newStage.show();
}
else{
//toggle FullScreen
fullScreen = false;
newStage.setFullScreen(false);
}
}
});
mediaBar.getChildren().add(buttonFullScreen);
// Volume label
Label volumeLabel = new Label("Vol");
volumeLabel.setMinWidth(Control.USE_PREF_SIZE);
mediaBar.getChildren().add(volumeLabel);
// Volume slider
volumeSlider = SliderBuilder.create()
.prefWidth(70)
.minWidth(30)
.maxWidth(Region.USE_PREF_SIZE)
.build();
volumeSlider.valueProperty().addListener(new InvalidationListener() {
public void invalidated(Observable ov) {
}
});
volumeSlider.valueProperty().addListener(new ChangeListener<Number>() {
@Override
public void changed(ObservableValue<? extends Number> observable, Number oldValue, Number newValue) {
if (volumeSlider.isValueChanging()) {
mp.setVolume(volumeSlider.getValue() / 100.0);
}
}
});
mediaBar.getChildren().add(volumeSlider);
setBottom(mediaBar);
}
protected void onFullScreen(){
if (!newStage.isFullScreen()){
fullScreen = false;
setCenter(mvPane);
setBottom(mediaBar);
Platform.runLater(new Runnable() {
@Override public void run() {
newStage.close();
}
});
}
}
protected void updateValues() {
if (playTime != null && timeSlider != null && volumeSlider != null && duration != null) {
Platform.runLater(new Runnable() {
public void run() {
Duration currentTime = mp.getCurrentTime();
playTime.setText(formatTime(currentTime, duration));
timeSlider.setDisable(duration.isUnknown());
if (!timeSlider.isDisabled() && duration.greaterThan(Duration.ZERO) && !timeSlider.isValueChanging()) {
timeSlider.setValue(currentTime.divide(duration).toMillis() * 100.0);
}
if (!volumeSlider.isValueChanging()) {
volumeSlider.setValue((int) Math.round(mp.getVolume() * 100));
}
}
});
}
}
private String formatTime(Duration elapsed, Duration duration) {
int intElapsed = (int)Math.floor(elapsed.toSeconds());
int elapsedHours = intElapsed / (60 * 60);
if (elapsedHours > 0) {
intElapsed -= elapsedHours * 60 * 60;
}
int elapsedMinutes = intElapsed / 60;
int elapsedSeconds = intElapsed - elapsedHours * 60 * 60 - elapsedMinutes * 60;
if (duration.greaterThan(Duration.ZERO)) {
int intDuration = (int)Math.floor(duration.toSeconds());
int durationHours = intDuration / (60 * 60);
if (durationHours > 0) {
intDuration -= durationHours * 60 * 60;
}
int durationMinutes = intDuration / 60;
int durationSeconds = intDuration - durationHours * 60 * 60 - durationMinutes * 60;
if (durationHours > 0) {
return String.format("%d:%02d:%02d/%d:%02d:%02d",
elapsedHours, elapsedMinutes, elapsedSeconds,
durationHours, durationMinutes, durationSeconds);
} else {
return String.format("%02d:%02d/%02d:%02d",
elapsedMinutes, elapsedSeconds,
durationMinutes, durationSeconds);
}
} else {
if (elapsedHours > 0) {
return String.format("%d:%02d:%02d",
elapsedHours, elapsedMinutes, elapsedSeconds);
} else {
return String.format("%02d:%02d",
elapsedMinutes, elapsedSeconds);
}
}
}
}
@Override public void start(Stage primaryStage) throws Exception {
init(primaryStage);
primaryStage.show();
play();
}
public static void main(String[] args) { launch(args); }
}
答案
import java.io.File;
import javafx.application.Application;
import javafx.beans.binding.Bindings;
import javafx.beans.property.DoubleProperty;
import javafx.scene.Scene;
import javafx.scene.layout.StackPane;
import javafx.scene.media.Media;
import javafx.scene.media.MediaView;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
public class Video extends Application{
private String Dir = System.getProperty("user.dir");
public static void main(String[] args) throws Exception{
launch(args);
}
@Override
public void start(Stage stage) throws Exception {
//goes to user Directory
File f = new File(Dir, "Epic Lightsaber Duel - Star Wars_ The Force Awakens.mp4");
//Converts media to string URL
Media media = new Media(f.toURI().toURL().toString());
javafx.scene.media.MediaPlayer player = new javafx.scene.media.MediaPlayer(media);
MediaView viewer = new MediaView(player);
//change width and height to fit video
DoubleProperty width = viewer.fitWidthProperty();
DoubleProperty height = viewer.fitHeightProperty();
width.bind(Bindings.selectDouble(viewer.sceneProperty(), "width"));
height.bind(Bindings.selectDouble(viewer.sceneProperty(), "height"));
viewer.setPreserveRatio(true);
StackPane root = new StackPane();
root.getChildren().add(viewer);
//set the Scene
Scene scenes = new Scene(root, 500, 500, Color.BLACK);
stage.setScene(scenes);
stage.setTitle("Riddle Game");
stage.setFullScreen(true);
stage.show();
player.play();
}
}
这对我来说非常适合
另一答案
要播放本地视频使用以下
private static File file = new File("d:/videos/xyz.mp4");
private static final String MEDIA_URL = file.toURI().toString();
这对我有用。希望这会帮助你。
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