Cluttersink memory leak

#include <gst/gst.h>
#include <clutter-gst/clutter-gst.h>

/*
 * clutter-gst-1.0
 * gcc clutter-gst-leak-test1.c -o clutter-gst-leak-test1 `pkg-config --cflags --libs gstreamer-0.10 clutter-gst-1.0`
 *
 * clutter-gst-2.0
 * gcc clutter-gst-leak-test1.c -o clutter-gst-leak-test1 `pkg-config --cflags --libs clutter-gst-2.0`
*/

static GMainLoop *loop;
ClutterActor *stage, *texture;
GstElement *pipeline = NULL;
gfloat width = 1024;
gfloat height = 768;

#define USE_YUV_CAPS

#if CLUTTER_GST_MAJOR_VERSION == 1
    #if defined (USE_YUV_CAPS)
        #define TEST_PIPE_STR "videotestsrc ! video/x-raw-yuv,framerate=25/1,width=%d,height=%d ! cluttersink name=sink"
    #else
        #define TEST_PIPE_STR "videotestsrc ! video/x-raw-rgb,framerate=25/1,width=%d,height=%d ! cluttersink name=sink"
    #endif
#elif CLUTTER_GST_MAJOR_VERSION == 2
    #if defined (USE_YUV_CAPS)
        #define TEST_PIPE_STR "videotestsrc ! video/x-raw,format=(string)AYUV,framerate=25/1,width=%d,height=%d ! cluttersink name=sink"
    #else
        #define TEST_PIPE_STR "videotestsrc ! video/x-raw,format=(string)RGB,framerate=25/1,width=%d,height=%d ! cluttersink name=sink"
    #endif
#endif

static void
size_change (ClutterActor *texture, gint width, gint height, gpointer user_data) {
    g_message("*** size_change ***");
    clutter_actor_set_size (texture, width, height);
}

static void
texture_destroy (ClutterActor *texture, gpointer user_data) {
    g_message("*** texture_destroy ***");
}

static gboolean
restart_pipeline () {
    if (pipeline != NULL) {
        gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL);
        gst_object_unref (pipeline);
        clutter_actor_destroy (texture);
        pipeline = NULL;
        texture = NULL;
    } else {
        gchar *pipe_str;
        pipe_str = g_strdup_printf (TEST_PIPE_STR, (gint) width, (gint) height);
        pipeline = gst_parse_launch (pipe_str, NULL);
        g_message ("Created pipe: %s", pipe_str);
        g_free (pipe_str);

        texture = CLUTTER_ACTOR (g_object_new (CLUTTER_TYPE_TEXTURE, "sync-size", FALSE, "disable-slicing", TRUE, NULL));
        g_signal_connect (CLUTTER_TEXTURE (texture), "size-change", G_CALLBACK (size_change), NULL);
        g_signal_connect (CLUTTER_TEXTURE (texture), "destroy", G_CALLBACK (texture_destroy), NULL);
#if CLUTTER_GST_MAJOR_VERSION == 1
        clutter_group_add (CLUTTER_GROUP (stage), texture);
#elif CLUTTER_GST_MAJOR_VERSION == 2
        clutter_actor_add_child (CLUTTER_ACTOR (stage), texture);
#endif

        GstElement *sink = gst_bin_get_by_name (GST_BIN (pipeline), "sink");
        g_object_set (sink, "texture", texture, NULL);
        gst_object_unref (sink);

        GstStateChangeReturn stateret = gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
        g_message ("done set to playing: %d", stateret);
    }
    return TRUE;
}

int
main(int argc, char *argv[]) {
    if (clutter_gst_init (&argc, &argv) != CLUTTER_INIT_SUCCESS) {
        g_error ("Failed to initialize clutter\n");
        return -1;
    }

    gchar *version = gst_version_string ();
    g_message ("GStreamer version: %s", version);
    g_free (version);

    g_message ("ClutterGst version: %s", CLUTTER_GST_VERSION_S);

    stage = clutter_stage_new ();
    clutter_actor_set_size (CLUTTER_ACTOR (stage), width, height);
    clutter_actor_show (CLUTTER_ACTOR (stage));

    restart_pipeline ();
    g_timeout_add_seconds(3, (GSourceFunc) restart_pipeline, NULL);

    loop = g_main_loop_new (NULL, FALSE);
    g_main_loop_run (loop);

    return 0;
}