mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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95 lines
2.4 KiB
C#
95 lines
2.4 KiB
C#
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// This file was generated by the Gtk# code generator.
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// Any changes made will be lost if regenerated.
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namespace GstSharp {
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using System;
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using System.Runtime.InteropServices;
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#region Autogenerated code
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[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
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internal delegate void MetaFreeFunctionNative(IntPtr meta, IntPtr buffer);
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internal class MetaFreeFunctionInvoker {
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MetaFreeFunctionNative native_cb;
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IntPtr __data;
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GLib.DestroyNotify __notify;
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~MetaFreeFunctionInvoker ()
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{
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if (__notify == null)
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return;
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__notify (__data);
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}
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internal MetaFreeFunctionInvoker (MetaFreeFunctionNative native_cb) : this (native_cb, IntPtr.Zero, null) {}
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internal MetaFreeFunctionInvoker (MetaFreeFunctionNative native_cb, IntPtr data) : this (native_cb, data, null) {}
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internal MetaFreeFunctionInvoker (MetaFreeFunctionNative native_cb, IntPtr data, GLib.DestroyNotify notify)
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{
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this.native_cb = native_cb;
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__data = data;
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__notify = notify;
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}
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internal Gst.MetaFreeFunction Handler {
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get {
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return new Gst.MetaFreeFunction(InvokeNative);
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}
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}
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void InvokeNative (Gst.Meta meta, Gst.Buffer buffer)
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{
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IntPtr native_meta = GLib.Marshaller.StructureToPtrAlloc (meta);
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native_cb (native_meta, buffer == null ? IntPtr.Zero : buffer.Handle);
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Marshal.FreeHGlobal (native_meta);
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}
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}
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internal class MetaFreeFunctionWrapper {
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public void NativeCallback (IntPtr meta, IntPtr buffer)
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{
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try {
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managed (Gst.Meta.New (meta), buffer == IntPtr.Zero ? null : (Gst.Buffer) GLib.Opaque.GetOpaque (buffer, typeof (Gst.Buffer), false));
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if (release_on_call)
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gch.Free ();
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} catch (Exception e) {
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GLib.ExceptionManager.RaiseUnhandledException (e, false);
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}
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}
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bool release_on_call = false;
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GCHandle gch;
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public void PersistUntilCalled ()
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{
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release_on_call = true;
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gch = GCHandle.Alloc (this);
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}
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internal MetaFreeFunctionNative NativeDelegate;
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Gst.MetaFreeFunction managed;
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public MetaFreeFunctionWrapper (Gst.MetaFreeFunction managed)
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{
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this.managed = managed;
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if (managed != null)
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NativeDelegate = new MetaFreeFunctionNative (NativeCallback);
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}
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public static Gst.MetaFreeFunction GetManagedDelegate (MetaFreeFunctionNative native)
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{
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if (native == null)
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return null;
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MetaFreeFunctionWrapper wrapper = (MetaFreeFunctionWrapper) native.Target;
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if (wrapper == null)
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return null;
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return wrapper.managed;
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}
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}
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#endregion
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}
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