diff --git a/gstreamer-sharp/Adapter.custom b/gstreamer-sharp/Adapter.custom
index da49141f50..9cd27d8080 100644
--- a/gstreamer-sharp/Adapter.custom
+++ b/gstreamer-sharp/Adapter.custom
@@ -1,11 +1,3 @@
-		[DllImport("libgstbase-0.10.dll")]
-		static extern void gst_adapter_push(IntPtr raw, IntPtr buf);
-
-		public void Push(Gst.Buffer buf) {
-			gst_adapter_push(Handle, buf == null ? IntPtr.Zero : buf.OwnedHandle);
-		}
-
-
 		[DllImport ("gstreamersharpglue-0.10.dll") ]
 		static extern IntPtr gstsharp_gst_adapter_peek_buffer (IntPtr adapter, uint size);
 
diff --git a/gstreamer-sharp/AppSrc.custom b/gstreamer-sharp/AppSrc.custom
index 36fa1e8218..8d1cfdd97f 100644
--- a/gstreamer-sharp/AppSrc.custom
+++ b/gstreamer-sharp/AppSrc.custom
@@ -12,12 +12,3 @@ public AppSrc (string name) : base (IntPtr.Zero) {
 }
 
 public AppSrc () : this ( (string) null) { }
-
-[DllImport ("libgstapp-0.10.dll") ]
-static extern int gst_app_src_push_buffer (IntPtr raw, IntPtr buffer);
-
-public Gst.FlowReturn PushBuffer (Gst.Buffer buffer) {
-  int raw_ret = gst_app_src_push_buffer (Handle, buffer == null ? IntPtr.Zero : buffer.OwnedHandle);
-  Gst.FlowReturn ret = (Gst.FlowReturn) raw_ret;
-  return ret;
-}
diff --git a/gstreamer-sharp/Gstreamer.metadata b/gstreamer-sharp/Gstreamer.metadata
index d0d994fed3..2a93ad50a7 100644
--- a/gstreamer-sharp/Gstreamer.metadata
+++ b/gstreamer-sharp/Gstreamer.metadata
@@ -991,7 +991,7 @@
   <attr path="/api/namespace/callback[@cname='GstTypeFindHelperGetRangeFunction']/parameters/parameter[@name='buffer']" name="pass_as">out</attr>
   <attr path="/api/namespace/callback[@cname='GstTypeFindHelperGetRangeFunction']/parameters/parameter[@name='buffer']" name="owned">true</attr>
 
-  <attr path="/api/namespace/object[@cname='GstAdapter']/method[@cname='gst_adapter_push']" name="hidden">1</attr>
+  <attr path="/api/namespace/object[@cname='GstAdapter']/method[@cname='gst_adapter_push']/parameters/parameter[@name='buf']" name="owned">true</attr>
   <attr path="/api/namespace/object[@cname='GstAdapter']/method[@cname='gst_adapter_peek']" name="hidden">1</attr>
   <attr path="/api/namespace/object[@cname='GstAdapter']/method[@cname='gst_adapter_copy']" name="hidden">1</attr>
   <attr path="/api/namespace/object[@cname='GstAdapter']/method[@cname='gst_adapter_take']" name="hidden">1</attr>
@@ -1135,7 +1135,7 @@
   <attr path="/api/namespace/object[@cname='GstAppSrc']/method[@cname='gst_app_src_set_callbacks']" name="hidden">1</attr>
   <attr path="/api/namespace/object[@cname='GstAppSrc']/signal[@cname='push-buffer']" name="hidden">1</attr>
   <attr path="/api/namespace/object[@cname='GstAppSrc']/signal[@cname='end-of-stream']" name="hidden">1</attr>
-  <attr path="/api/namespace/object[@cname='GstAppSrc']/method[@cname='gst_app_src_push_buffer']" name="hidden">1</attr>
+  <attr path="/api/namespace/object[@cname='GstAppSrc']/method[@cname='gst_app_src_push_buffer']/parameters/parameter[@name='buffer']" name="owned">true</attr>
 
   <!-- GStreamer Interfaces library -->
   <attr path="/api/namespace/enum[@cname='GstNavigationCommand']" name="name">NavigationCommand</attr>