Question

因为我正在为我的项目制作gstreamer绑定并获得信息，gstreamer-sharp 0.99.x只能使用glib-sharp 2.99.x，我认为创建一个测试项目是一个好主意。所以我下载了名为“GTK＃3简单项目模板”的monodevelop插件并编译了它 - ＆gt;工作。现在我添加了之前编译的gstreamer-sharp 0.99 dll并添加了以下代码：

Gst.Application.Init();
Element music = Parse.Launch("playbin uri=\"file:////media/Auslagerung/DJ/IDs/android.mp3\"");
music.SetState(Gst.State.Playing);

当我播放此代码时，我得到以下异常：

Marshaling clicked signal
Exception in Gtk# callback delegate
  Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.TypeInitializationException: An exception was thrown by the type initializer for Gst.Pipeline ---> System.DllNotFoundException: libgstreamersharpglue-1.0.0.dll
  at (wrapper managed-to-native) Gst.Pipeline:gstsharp_gst_pipeline_get_fixed_clock_offset ()
  at Gst.Pipeline..cctor () [0x00000] in <filename unknown>:0 
  --- End of inner exception stack trace ---
  at (wrapper managed-to-native) System.Reflection.MonoCMethod:InternalInvoke (System.Reflection.MonoCMethod,object,object[],System.Exception&)
  at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) [0x00002] in /builddir/build/BUILD/mono-3.4.0/mcs/class/corlib/System.Reflection/MonoMethod.cs:537 
  --- End of inner exception stack trace ---
  at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) [0x00013] in /builddir/build/BUILD/mono-3.4.0/mcs/class/corlib/System.Reflection/MonoMethod.cs:543 
  at System.Reflection.MonoCMethod.DoInvoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x000a5] in /builddir/build/BUILD/mono-3.4.0/mcs/class/corlib/System.Reflection/MonoMethod.cs:528 
  at System.Reflection.MonoCMethod.Invoke (BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in /builddir/build/BUILD/mono-3.4.0/mcs/class/corlib/System.Reflection/MonoMethod.cs:556 
  at System.Activator.CreateInstance (System.Type type, BindingFlags bindingAttr, System.Reflection.Binder binder, System.Object[] args, System.Globalization.CultureInfo culture, System.Object[] activationAttributes) [0x00174] in /builddir/build/BUILD/mono-3.4.0/mcs/class/corlib/System/Activator.cs:301 
  at System.Activator.CreateInstance (System.Type type, BindingFlags bindingAttr, System.Reflection.Binder binder, System.Object[] args, System.Globalization.CultureInfo culture) [0x00000] in /builddir/build/BUILD/mono-3.4.0/mcs/class/corlib/System/Activator.cs:238 
  at GLib.ObjectManager.CreateObject (IntPtr raw) [0x00000] in <filename unknown>:0 
  at GLib.Object.GetObject (IntPtr o, Boolean owned_ref) [0x00000] in <filename unknown>:0 
  at GLib.Object.GetObject (IntPtr o) [0x00000] in <filename unknown>:0 
  at Gst.Parse.Launch (System.String pipeline_description) [0x00000] in <filename unknown>:0 
  at MainWindow.onButtonClick (System.Object sender, System.EventArgs a) [0x00039] in /media/Auslagerung/tmp/Gtk3-Sharp-Test/Gtk3-Sharp-Test/MainWindow.cs:25 
  at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00054] in /builddir/build/BUILD/mono-3.4.0/mcs/class/corlib/System.Reflection/MonoMethod.cs:230 
  --- End of inner exception stack trace ---
  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00069] in /builddir/build/BUILD/mono-3.4.0/mcs/class/corlib/System.Reflection/MonoMethod.cs:238 
  at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in /builddir/build/BUILD/mono-3.4.0/mcs/class/corlib/System.Reflection/MethodBase.cs:114 
  at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x000cf] in /builddir/build/BUILD/mono-3.4.0/mcs/class/corlib/System/Delegate.cs:424 
  at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) [0x00018] in /builddir/build/BUILD/mono-3.4.0/mcs/class/corlib/System/MulticastDelegate.cs:70 
  at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000] in /builddir/build/BUILD/mono-3.4.0/mcs/class/corlib/System/Delegate.cs:398 
  at GLib.Signal.ClosureInvokedCB (System.Object o, GLib.ClosureInvokedArgs args) [0x00000] in <filename unknown>:0 
  at GLib.SignalClosure.Invoke (GLib.ClosureInvokedArgs args) [0x00000] in <filename unknown>:0 
  at GLib.SignalClosure.MarshalCallback (IntPtr raw_closure, IntPtr return_val, UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data) [0x00000] in <filename unknown>:0 
   at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
   at GLib.SignalClosure.MarshalCallback(IntPtr raw_closure, IntPtr return_val, UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data)
   at Gtk.Application.gtk_main()
   at Gtk.Application.Run()
   at Gtk3SharpTest.MainClass.Main(System.String[] args) in /media/Auslagerung/tmp/Gtk3-Sharp-Test/Gtk3-Sharp-Test/Program.cs:line 14

Unhandled Exception:
System.TypeInitializationException: An exception was thrown by the type initializer for Gst.Pipeline ---> System.DllNotFoundException: libgstreamersharpglue-1.0.0.dll
  at (wrapper managed-to-native) Gst.Pipeline:gstsharp_gst_pipeline_get_fixed_clock_offset ()
  at Gst.Pipeline..cctor () [0x00000] in <filename unknown>:0 
  --- End of inner exception stack trace ---
  at (wrapper managed-to-native) System.Reflection.MonoCMethod:InternalInvoke (System.Reflection.MonoCMethod,object,object[],System.Exception&)
  at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) [0x00002] in /builddir/build/BUILD/mono-3.4.0/mcs/class/corlib/System.Reflection/MonoMethod.cs:537 
[ERROR] FATAL UNHANDLED EXCEPTION: System.TypeInitializationException: An exception was thrown by the type initializer for Gst.Pipeline ---> System.DllNotFoundException: libgstreamersharpglue-1.0.0.dll
  at (wrapper managed-to-native) Gst.Pipeline:gstsharp_gst_pipeline_get_fixed_clock_offset ()
  at Gst.Pipeline..cctor () [0x00000] in <filename unknown>:0 
  --- End of inner exception stack trace ---
  at (wrapper managed-to-native) System.Reflection.MonoCMethod:InternalInvoke (System.Reflection.MonoCMethod,object,object[],System.Exception&)
  at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) [0x00002] in /builddir/build/BUILD/mono-3.4.0/mcs/class/corlib/System.Reflection/MonoMethod.cs:537

任何人都可以帮助我，在哪里可以找到dll？或者我在建筑中错过了什么？！

提前致谢。

Answer 1

您的输出目录中没有libgstreamerglue-1.0.0。

Answer 2

libgstreamersharpglue.so位于目前为止ldconfig未知的目录中。

我正在使用ubuntu 15.04。打开命令行并执行以下操作：

ldconfig -p | grep libgstreamersharpglue - ＆gt;没有输出意味着它不在ldconfig的缓存中

找到gstreamer | grep glue（一定要做sudo updatedb） - ＆GT;如果这不产生输出，则表示您没有安装所有需要的软件包

如果文件位于系统的某个位置，它将位于结果列表中：

对我来说是/usr/lib/cli/gstreamer-sharp-0.9/libgstreamersharpglue-0.10.so

您需要使用/usr/lib/cli/gstreamer-sharp-0.9目录使用ldconfig。

OR：将目录直接添加到/etc/ld.so.conf

中

OR：删除/etc/ld.so.conf.d中的.conf文件并将该目录添加到该文件

在我的系统上我做了后者： /etc/ld.so.conf.d/cli.conf

有两条记录 / usr / lib中/ CLI

/usr/lib/cli/gstreamer-sharp-0.9

现在重建ldconfig的缓存

sudo ldconfig

测试它是否成功：

ldconfig -p | grep gstreamersharpglue - ＆gt;你应该从这个

获得输出

重试运行您的应用

Gstreamer在Linux上运行良好

2 个答案: