bytedeco/javacv

Strange conflict between JavaFx MediaPlayer and OpenCVFrameGrabber after Windows wakes up after Sleep mode

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#947 创建于 2018年3月28日

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 (31 评论) (0 反应) (0 负责人)Java (1,583 fork)batch import
bughelp wanted

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描述

Steps to reproduce:

  1. Run code:

     public class Main extends Application {
    
         MediaPlayer player;
    
         public static void main(String[] args) throws Exception {        
             Application.launch(args);
         }
    
         @Override
         public void start(Stage primaryStage) throws Exception {
             Platform.runLater(() -> {
                 player = new MediaPlayer(new Media(new File("test.mp3").toURI().toString()));
             });
             Button button = new Button("test");
             button.setOnAction((event) -> {
                 try {
                     System.out.println("row: " + Thread.currentThread().getStackTrace()[1].getLineNumber());
                     FrameGrabber grabber1 = OpenCVFrameGrabber.createDefault(0);
                     System.out.println("row: " + Thread.currentThread().getStackTrace()[1].getLineNumber());
                     grabber1.start();
                     System.out.println("row: " + Thread.currentThread().getStackTrace()[1].getLineNumber());
                     grabber1.grab();
                     System.out.println("row: " + Thread.currentThread().getStackTrace()[1].getLineNumber());
                     grabber1.close();
                     System.out.println("row: " + Thread.currentThread().getStackTrace()[1].getLineNumber());
                 } catch (Exception e) {
                     System.out.println(e);
                 }
             });
             primaryStage.setScene(new Scene(button));
             primaryStage.show();
         }
     }
    
  2. Press "test": works fine.

  3. Sleep/Wake up Windows.

  4. Press "test": stuck on start().

Stack:

"JavaFX Application Thread"
	at org.bytedeco.javacpp.opencv_videoio$VideoCapture.allocate(opencv_videoio.java)
	at org.bytedeco.javacpp.opencv_videoio$VideoCapture.<init>(opencv_videoio.java:1544)
	at org.bytedeco.javacv.OpenCVFrameGrabber.start(OpenCVFrameGrabber.java:176)
	at main.Main.lambda$start$1(Main.java:42)
	at main.Main$$Lambda$69.138177028.handle
	at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
	at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
	at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
	at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
	at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
	at javafx.event.Event.fireEvent(Event.java:198)
	at javafx.scene.Node.fireEvent(Node.java:8390)
	at javafx.scene.control.Button.fire(Button.java:185)
	at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:182)
	at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:96)
	at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:89)
	at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
	at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
	at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
	at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
	at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
	at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
	at javafx.event.Event.fireEvent(Event.java:198)
	at javafx.scene.Scene$MouseHandler.process(Scene.java:3758)
	at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3486)
	at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)
	at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2495)
	at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:350)
	at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:275)
	at java.security.AccessController.doPrivileged(AccessController.java)
	at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$350(GlassViewEventHandler.java:385)
	at com.sun.javafx.tk.quantum.GlassViewEventHandler$$Lambda$125.1775387165.get
	at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:404)
	at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:384)
	at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
	at com.sun.glass.ui.View.notifyMouse(View.java:927)
	at com.sun.glass.ui.win.WinApplication._runLoop(WinApplication.java)
	at com.sun.glass.ui.win.WinApplication.lambda$null$145(WinApplication.java:101)
	at com.sun.glass.ui.win.WinApplication$$Lambda$36.653687670.run
	at java.lang.Thread.run(Thread.java:745)

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