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