Debian Jessie JavaFX MediaPlayer：无法创建播放器 [英] Debian Jessie JavaFX MediaPlayer : Could not create player

问题描述

运行带有Ant配置的Java应用程序时出现此异常。

I get this exception while running a java app with Ant configuration.

Exception in thread "JavaFX Application Thread" MediaException: UNKNOWN : com.sun.media.jfxmedia.MediaException: Could not create player! : com.sun.media.jfxmedia.MediaException: Could not create player!

这是我的代码：

@Override public void start(Stage stage) {
    final Scene scene = new Scene(((Viewer)viewer).getPanel());
    Media theme = new Media(getHostServices().getDocumentBase() + "src/sound/theme_bttf.mp3");
    new MediaPlayer(theme).play();
}

有没有人知道如何解决这个问题？

Does anyone have an idean on how to solve this ?

我使用 Gnome 3.14.1 和 Java

java version "1.8.0_74"
Java(TM) SE Runtime Environment (build 1.8.0_74-b02)
Java HotSpot(TM) 64-Bit Server VM (build 25.74-b02, mixed mode)

编辑：

这是我在做 ant run 时得到的堆栈跟踪：

Here is the stack trace i get when doing ant run :

run:
 [echo] ================ Run Object Main ================
 [java] Gtk-Message: Failed to load module "canberra-gtk-module"
 [java] Exception in Application start method
 [java] java.lang.reflect.InvocationTargetException
 [java]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 [java]     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
 [java]     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 [java]     at java.lang.reflect.Method.invoke(Method.java:498)
 [java]     at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
 [java]     at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
 [java]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 [java]     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
 [java]     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 [java]     at java.lang.reflect.Method.invoke(Method.java:498)
 [java]     at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
 [java] Caused by: java.lang.RuntimeException: Exception in Application start method
 [java]     at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
 [java]     at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$155(LauncherImpl.java:182)
 [java]     at java.lang.Thread.run(Thread.java:745)
 [java] Caused by: MediaException: UNKNOWN : com.sun.media.jfxmedia.MediaException: Could not create player! : com.sun.media.jfxmedia.MediaException: Could not create player!
 [java]     at javafx.scene.media.MediaException.exceptionToMediaException(MediaException.java:146)
 [java]     at javafx.scene.media.MediaPlayer.init(MediaPlayer.java:511)
 [java]     at javafx.scene.media.MediaPlayer.<init>(MediaPlayer.java:414)
 [java]     at alpha.Main.start(Main.java:71)
 [java]     at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(LauncherImpl.java:863)
 [java]     at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326)
 [java]     at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
 [java]     at java.security.AccessController.doPrivileged(Native Method)
 [java]     at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
 [java]     at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
 [java]     at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
 [java]     at com.sun.glass.ui.gtk.GtkApplication.lambda$null$49(GtkApplication.java:139)
 [java]     ... 1 more
 [java] Caused by: com.sun.media.jfxmedia.MediaException: Could not create player!
 [java]     at com.sun.media.jfxmediaimpl.NativeMediaManager.getPlayer(NativeMediaManager.java:274)
 [java]     at com.sun.media.jfxmedia.MediaManager.getPlayer(MediaManager.java:118)
 [java]     at javafx.scene.media.MediaPlayer.init(MediaPlayer.java:467)
 [java]     ... 11 more
 [java] Exception running application alpha.Main
 [java] Java Result: 1

编辑2：

我有 libavcodec56 ， libavformat56 和GLIB 2.42 .1已安装。

I have libavcodec56, libavformat56 and GLIB 2.42.1 installed.

# pkg-config --modversion glib-2.0
2.42.1

推荐答案

来自认证系统配置
http://www.oracle.com/technetwork/java/javase/downloads/index .html

您必须安装GLIB 2.28才能运行JavaFX Media。

You must install GLIB 2.28 in order to run JavaFX Media.

您必须安装以下内容才能支持AAC音频，MP3
音频，H.264视频和HTTP直播：

You must install the following in order to support AAC audio, MP3 audio, H.264 video, and HTTP Live Streaming:

• Ubuntu Linux 12.04上的libavcodec53和libavformat53或同等版本。

[.. 。]

• VP6视频支持不需要任何第三方模块。


• 在Linux平台上，安装libavformat会自动导致安装libavcodec。

请加倍检查您是否安装了所有必需的库。

Please double-check you have all the required libraries installed.

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