diff --git a/ext/gl/gstglbasemixer.c b/ext/gl/gstglbasemixer.c
index 317d339ed4..d37e55c96a 100644
--- a/ext/gl/gstglbasemixer.c
+++ b/ext/gl/gstglbasemixer.c
@@ -580,20 +580,6 @@ no_decide_allocation:
   }
 }
 
-GstBufferPool *
-gst_gl_base_mixer_get_buffer_pool (GstGLBaseMixer * mix)
-{
-  GstBufferPool *pool;
-
-  GST_OBJECT_LOCK (mix);
-  pool = mix->priv->pool;
-  if (pool)
-    gst_object_ref (pool);
-  GST_OBJECT_UNLOCK (mix);
-
-  return pool;
-}
-
 static void
 gst_gl_base_mixer_get_property (GObject * object,
     guint prop_id, GValue * value, GParamSpec * pspec)
diff --git a/ext/gl/gstglbasemixer.h b/ext/gl/gstglbasemixer.h
index cba8184792..91bd8ef902 100644
--- a/ext/gl/gstglbasemixer.h
+++ b/ext/gl/gstglbasemixer.h
@@ -99,7 +99,5 @@ struct _GstGLBaseMixerClass
 
 GType gst_gl_base_mixer_get_type(void);
 
-GstBufferPool *gst_gl_base_mixer_get_buffer_pool (GstGLBaseMixer * mix);
-
 G_END_DECLS
 #endif /* __GST_GL_BASE_MIXER_H__ */
diff --git a/ext/gl/gstglmixer.c b/ext/gl/gstglmixer.c
index d2ce49da8a..f1aa0b1028 100644
--- a/ext/gl/gstglmixer.c
+++ b/ext/gl/gstglmixer.c
@@ -322,8 +322,6 @@ static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink_%u",
     );
 
 static gboolean gst_gl_mixer_src_query (GstAggregator * agg, GstQuery * query);
-static GstFlowReturn gst_gl_mixer_get_output_buffer (GstVideoAggregator *
-    videoaggregator, GstBuffer ** outbuf);
 static gboolean gst_gl_mixer_stop (GstAggregator * agg);
 static gboolean gst_gl_mixer_start (GstAggregator * agg);
 
@@ -371,7 +369,6 @@ gst_gl_mixer_class_init (GstGLMixerClass * klass)
   agg_class->negotiated_src_caps = _negotiated_caps;
 
   videoaggregator_class->aggregate_frames = gst_gl_mixer_aggregate_frames;
-  videoaggregator_class->get_output_buffer = gst_gl_mixer_get_output_buffer;
   videoaggregator_class->find_best_format = _find_best_format;
 
   mix_class->propose_allocation = gst_gl_mixer_propose_allocation;
@@ -465,34 +462,6 @@ gst_gl_mixer_src_query (GstAggregator * agg, GstQuery * query)
   return res;
 }
 
-static GstFlowReturn
-gst_gl_mixer_get_output_buffer (GstVideoAggregator * videoaggregator,
-    GstBuffer ** outbuf)
-{
-  GstGLMixer *mix = GST_GL_MIXER (videoaggregator);
-  GstBufferPool *pool;
-  GstFlowReturn ret;
-
-  pool =
-      gst_gl_base_mixer_get_buffer_pool (GST_GL_BASE_MIXER (videoaggregator));
-
-  if (!pool)
-    return GST_FLOW_NOT_NEGOTIATED;
-
-  if (!gst_buffer_pool_is_active (pool)) {
-    if (!gst_buffer_pool_set_active (pool, TRUE)) {
-      GST_ELEMENT_ERROR (mix, RESOURCE, SETTINGS,
-          ("failed to activate bufferpool"), ("failed to activate bufferpool"));
-      return GST_FLOW_ERROR;
-    }
-  }
-
-  ret = gst_buffer_pool_acquire_buffer (pool, outbuf, NULL);
-  gst_object_unref (pool);
-
-  return ret;
-}
-
 static void
 _mixer_create_fbo (GstGLContext * context, GstGLMixer * mix)
 {