static GstBufferClass GetClassStruct (Gst.GLib.GType gtype, bool use_cache)
{
if (class_structs == null)
class_structs = new Hashtable ();
if (use_cache && class_structs.Contains (gtype))
return (GstBufferClass) class_structs [gtype];
else {
IntPtr class_ptr = new IntPtr (gtype.GetClassPtr ().ToInt64 () + class_offset);
GstBufferClass class_struct = (GstBufferClass) Marshal.PtrToStructure (class_ptr, typeof (GstBufferClass));
if (use_cache)
class_structs.Add (gtype, class_struct);
return class_struct;
}
}
static void OverrideClassStruct (Gst.GLib.GType gtype, GstMixerTrackClass class_struct)
{
IntPtr class_ptr = new IntPtr (gtype.GetClassPtr ().ToInt64 () + class_offset);
Marshal.StructureToPtr (class_struct, class_ptr, false);
}
static void OverrideParentSet (Gst.GLib.GType gtype, ParentSetNativeDelegate callback)
{
gstsharp_object_override_parent_set (gtype.GetClassPtr (), callback);
}
static void OverrideHandleMessage (Gst.GLib.GType gtype, HandleMessageNativeDelegate callback)
{
gstsharp_bin_override_handle_message (gtype.GetClassPtr (), callback);
}
static void OverrideDoLatency (Gst.GLib.GType gtype, DoLatencyNativeDelegate callback)
{
gstsharp_bin_override_do_latency (gtype.GetClassPtr (), callback);
}
static void OverrideAddElement (Gst.GLib.GType gtype, AddElementNativeDelegate callback)
{
gstsharp_bin_override_add_element (gtype.GetClassPtr (), callback);
}
static void OverrideRemoveElement (Gst.GLib.GType gtype, RemoveElementNativeDelegate callback)
{
gstsharp_bin_override_remove_element (gtype.GetClassPtr (), callback);
}
static void OverrideElementAdded (Gst.GLib.GType gtype, ElementAddedNativeDelegate callback)
{
gstsharp_bin_override_element_added (gtype.GetClassPtr (), callback);
}
static void OverrideClassStruct (Gst.GLib.GType gtype, GstInterpolationControlSourceClass class_struct)
{
IntPtr class_ptr = new IntPtr (gtype.GetClassPtr ().ToInt64 () + class_offset);
Marshal.StructureToPtr (class_struct, class_ptr, false);
}
static void OverrideClassStruct (Gst.GLib.GType gtype, GstMiniObjectClass class_struct) {
IntPtr class_ptr = gtype.GetClassPtr ();
Marshal.StructureToPtr (class_struct, class_ptr, false);
}
protected static void SetDetails (Gst.GLib.GType gtype, string longname, string klass, string description, string author) {
IntPtr class_ptr = new IntPtr (gtype.GetClassPtr ().ToInt64 ());
IntPtr native_longname = Gst.GLib.Marshaller.StringToPtrGStrdup (longname);
IntPtr native_klass = Gst.GLib.Marshaller.StringToPtrGStrdup (klass);
IntPtr native_desc = Gst.GLib.Marshaller.StringToPtrGStrdup (description);
IntPtr native_author = Gst.GLib.Marshaller.StringToPtrGStrdup (author);
gst_element_class_set_details_simple (class_ptr, native_longname, native_klass, native_desc, native_author);
Gst.GLib.Marshaller.Free (native_longname);
Gst.GLib.Marshaller.Free (native_klass);
Gst.GLib.Marshaller.Free (native_desc);
Gst.GLib.Marshaller.Free (native_author);
}
protected static void AddPadTemplate (Gst.GLib.GType gtype, Gst.PadTemplate templ) {
IntPtr class_ptr = new IntPtr (gtype.GetClassPtr ().ToInt64 ());
gst_element_class_add_pad_template (class_ptr, templ.Handle);
}
