java - 尝试使用 OpenJFX 播放 .wav 文件时出现间歇性错误
问题描述
我需要一个内部 .wav(在源文件夹中)才能正确加载到媒体播放器中。
我昨天让它工作并提交了它工作的代码。今天,回滚到该提交显示以下错误:
Exception in Application start method
java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:464)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:363)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1051)
Caused by: java.lang.RuntimeException: Exception in Application start method
Caused by: java.lang.RuntimeException: Exception in Application start method
at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:900)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:195)
at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: MediaException: UNKNOWN : com.sun.media.jfxmedia.MediaException: Could not create player! : com.sun.media.jfxmedia.MediaException: Could not create player!
Caused by: MediaException: UNKNOWN : com.sun.media.jfxmedia.MediaException: Could not create player! : com.sun.media.jfxmedia.MediaException: Could not create player!
at javafx.media/javafx.scene.media.MediaException.exceptionToMediaException(MediaException.java:146)
at javafx.media/javafx.scene.media.MediaPlayer.init(MediaPlayer.java:518)
at javafx.media/javafx.scene.media.MediaPlayer.<init>(MediaPlayer.java:421)
at sokoban@0.0.1/Engine.createPlayer(Engine.java:188)
at sokoban@0.0.1/Engine.<init>(Engine.java:37)
at sokoban@0.0.1/initializeGame(Main.java:104)
at sokoban@0.0.1/start(Main.java:60)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication.lambda$runLoop$11(GtkApplication.java:277)
... 1 more
Caused by: com.sun.media.jfxmedia.MediaException: Could not create player!
Caused by: com.sun.media.jfxmedia.MediaException: Could not create player!
at javafx.media/com.sun.media.jfxmediaimpl.NativeMediaManager.getPlayer(NativeMediaManager.java:295)
at javafx.media/com.sun.media.jfxmedia.MediaManager.getPlayer(MediaManager.java:118)
at javafx.media/javafx.scene.media.MediaPlayer.init(MediaPlayer.java:474)
... 14 more
Exception running application Main
我想强调昨天相同的代码运行良好。
我发现了这个问题,但它似乎已经过时了。不管我在 Arch 上安装了最新版本的 ffmpeg。
我也发现了这个堆栈溢出帖子,但是由于它之前工作过,我相信我正确地引用了该文件。
以防万一,这是文件结构:
main
- java
- Engine.java
- resources
- audio.wav
以及创建播放器的代码:
Media music = new Media(getClass().getResource("/audio.wav").toURI().toString());
player = new MediaPlayer(music);
解决方案
根据ArchWiki,该异常可能是由于某些不兼容而引发的。
工作解决方案是安装ffmpeg-compat-55
AUR 包。
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