我的主要目标是从目录中获取所有.mp4
个文件的持续时间。所以,我搜索了它并找到了this qeustion,其中一个答案提到了this完整代码。
当我在代码中取得必要的部分时,它在以下行中显示错误:
import com.xuggle.xuggler.IContainer;
之后,我从here下载了来自here的Xuggler。然后我得到以下错误:
Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
at com.xuggle.ferry.JNILibrary.<clinit>(JNILibrary.java:42)
at com.xuggle.ferry.FerryJNI.<clinit>(FerryJNI.java:14)
at com.xuggle.ferry.Ferry.<clinit>(Ferry.java:25)
at com.xuggle.xuggler.XugglerJNI.<clinit>(XugglerJNI.java:19)
at com.xuggle.xuggler.IContainer.<clinit>(IContainer.java:1622)
at videotimecalcualtioncoursera.MainFrame.calculateTime(MainFrame.java:116)
at videotimecalcualtioncoursera.MainFrame.jButtonCalculateActionPerformed(MainFrame.java:284)
at videotimecalcualtioncoursera.MainFrame.access$000(MainFrame.java:33)
at videotimecalcualtioncoursera.MainFrame$4.actionPerformed(MainFrame.java:204)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2346)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6525)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
at java.awt.Component.processEvent(Component.java:6290)
at java.awt.Container.processEvent(Container.java:2234)
at java.awt.Component.dispatchEventImpl(Component.java:4881)
at java.awt.Container.dispatchEventImpl(Container.java:2292)
at java.awt.Component.dispatchEvent(Component.java:4703)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4898)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4533)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4462)
at java.awt.Container.dispatchEventImpl(Container.java:2278)
at java.awt.Window.dispatchEventImpl(Window.java:2739)
at java.awt.Component.dispatchEvent(Component.java:4703)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:746)
at java.awt.EventQueue.access$400(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:697)
at java.awt.EventQueue$3.run(EventQueue.java:691)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:719)
at java.awt.EventQueue$4.run(EventQueue.java:717)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:716)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory
at java.net.URLClassLoader$1.run(URLClassLoader.java:372)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 45 more
为了寻求上述例外的解决方案,我找到了this question并尝试了所有三个解决方案而没有运气。得到以下例外:
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x000000006ee76520, pid=10112, tid=3292
#
# JRE version: Java(TM) SE Runtime Environment (8.0_25-b18) (build 1.8.0_25-b18)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.25-b02 mixed mode windows-amd64 compressed oops)
# Problematic frame:
# C [xuggle6026878147022032067.dll+0x736520]
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information is saved as:
# H:\Dropbox\JavaProjects\VideoTimeCalcualtionCoursera\hs_err_pid10112.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
Java Result: 1
求它的解决方案,我得到this question并且接受的答案除了删除错误流中的前三行外什么都不做。
我尝试在我的项目中添加以下.jar
文件:
您可以看到错误文件here,我无法添加它,因为添加它会越过字符限制。
如何解决此问题?
我已经遍历了以下问题:
答案 0 :(得分:1)
您通常需要三个功能部分:
有些罐子覆盖多个部分,例如: logback包含2和3,因为它本机实现了slf4j,或者如果使用java util日志,则不需要显式添加第3部分(它位于Java运行时)
您还必须使用slf4j组件的匹配版本,例如,不要将slf4j-api-1.6.4.jar与slf4j-log4j12-1.7.12.jar混合使用。
详细了解slf4j documentation。
答案 1 :(得分:0)
我会尝试逐个添加您的依赖项(同时注释掉依赖代码)。我的第一印象是其中一个库在类路径上为slf4j提供了不兼容的版本/后端。在你发现这一点之前,我们无法知道哪一个。完成后,您可以让gradle / maven从类路径中排除一个冲突的东西。
答案 2 :(得分:0)
我无法解决问题,但我可以通过其他方式实现我的目标。
我已经使用了IBM的工具包。
在我的代码中添加了以下代码段:
public long getDuration(File file) throws IOException {
PlayerControl playerControl = PlayerFactory.createLightweightMPEG4Player();
playerControl.open(file.getAbsolutePath());
return playerControl.getDuration();
}
由于我的目标只是获得持续时间,这不是有效的方式。
在我的PC(core-i5,2.5GHz,6GB内存,Win10)中,42657ms
处理了60个.mp4
文件输出大约6小时41分钟的持续时间强>
如果需要,可以在my repository中查看。