JAVAFX媒体:严重的优化问题 [英] JAVAFX media : Serious optimization problem

问题描述

该程序是一个显示媒体的系统:图像，视频并在它们之间保持交替.问题是使用增加的内存:程序运行30分钟后，它消耗了1.2gb的内存

the program is a system that shows media: images, videos and keeps alternating between them. the problem is the use of increasing memory: after the programming running for 30 minutes, it consumes 1.2gb of ram

我对我能做什么没有太多的想法，我认为内存消耗增加的原因是递归(函数调用自身)或每次提供图片时都会创建线程的事实，以及视频时，它使用技术上可运行的正确"(.setOnEndOfMedia()) 请记住，我不能使用计时器/时间轴，因为我的视频时长不同，所以这种方式适用于图像

I do not have much idea of what I can do, I believe that the reason for the increasing memory consumption would be recursion (the function calls itself) or the fact that every time it gives a picture it creates a thread, and when it video it uses the technically 'correct' which is a runnable (.setOnEndOfMedia ()) Remembering that I can not use timer / timeline, because I have videos with different durations, this way would work with image

package testevideo2;

import java.util.logging.Level;
import java.util.logging.Logger;
import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.application.Application;
import javafx.application.Platform;
import javafx.scene.Cursor;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.input.KeyCombination;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Pane;
import javafx.scene.layout.StackPane;
import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;
import javafx.scene.media.MediaView;
import javafx.stage.Stage;
import javafx.util.Duration;

public class TesteVideo2 extends Application{

StackPane stack = new StackPane();

int xImagem = 0;
int xVideo = 0;

public void start(Stage primaryStage) throws Exception {

    //primaryStage.setScene(videoCena);
    primaryStage.setFullScreenExitKeyCombination(KeyCombination.NO_MATCH);
    primaryStage.setFullScreen(true);
    primaryStage.setTitle("Titulo bonito");
    primaryStage.show();
    proximo(primaryStage);
    /*player.play();
    player.setOnEndOfMedia(new Runnable() { //Classe Anônima
        @Override
        public void run() {
            primaryStage.setScene(imagemCena);
            //primaryStage.centerOnScreen();
        }
    });*/
}

private void proximo(Stage primaryStage){
    //valores serao pego da api...
    boolean[] eVideo = {false, false, true, false, true};
    String[] nomeImagens = {"doido.jfif", "eu.jpg", "resultado.jpg", "37Teste.jpg"};
    String[] nomeVideos = {"xx.mp4", "carinha.mp4"};
    final String diretorioBase = "file:/C:/Users/Thiago/Desktop/arquivos_projetoandre/";
    if(xImagem + xVideo < eVideo.length){
        //look if the next file is a video or an image
        if(eVideo[xImagem + xVideo]){  
            //criador de video
            Media media = new Media(diretorioBase + nomeVideos[xVideo]);
            MediaPlayer player = new MediaPlayer(media);
            Scene videoCena = new Scene(new Group(new MediaView(player)), 1366, 720);
            videoCena.setCursor(Cursor.NONE);
            player.play();
            player.setOnEndOfMedia(new Runnable() { //Classe Anônima
                @Override
                public void run() {
                    proximo(primaryStage);
                    //primaryStage.centerOnScreen();
                }
            });
            primaryStage.setScene(videoCena);
            xVideo++;
        } else {
                //criador de imagem
                Pane pane = new HBox();
                Image img = new Image(diretorioBase + nomeImagens[xImagem]);
                pane.getChildren().add(new ImageView(img));
                Scene imagemCena = new Scene(pane, 1366, 720);
                //PROBABLY PROBLEM HERE --- CREATE A NEW THREAD ONLY TO WAIT 4 SECONDS
                Thread a = new Thread(new Runnable() { 
                    public void run() { 
                        try {
                            Thread.sleep(4000);
                            //force to the application run on 'javaFx thread'
                            Platform.runLater(new Runnable(){
                                @Override
                                public void run() {
                                    proximo(primaryStage);
                                }
                            });
                        } catch (InterruptedException ex) {
                            Logger.getLogger(TesteVideo2.class.getName()).log(Level.SEVERE, null, ex);
                        }
                    }
                });
                a.start();
                primaryStage.setScene(imagemCena);
                xImagem++;
                //Thread.sleep(4000);
                //proximo(primaryStage);
        }
    } else {
        xVideo = 0;
        xImagem = 0;
        proximo(primaryStage);
    }
}


public static void main(String [] args) {
    Application.launch();
}
}

我希望它的功能与现在相同，只是处理的使用随着时间的推移而增加，因为该应用程序将运行数小时...

I hope it does the same function as it is now, except in a way that the use of processing is increasing over time, because this application will run for hours ...

推荐答案

如果您停止使用dispose()对象来释放其所有资源，则需要在其上调用dispose().

You need to call dispose() on your MediaPlayer object if you stop using it to free all its resources.

还要确保您的Java版本为8或更高(旧版本中存在内存泄漏).

Also make sure your Java version is 8 or higher (there is a memory leak in older versions).

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