GST_DEBUG ("merged: (%d) %" GST_PTR_FORMAT, gst_caps_get_size (c2), c2);
fail_unless (gst_caps_get_size (c2) == 1, NULL);
gst_caps_unref (c2);
c1 = gst_caps_from_string ("video/x-foo, data=(buffer)AA");
c2 = gst_caps_from_string ("video/x-foo, data=(buffer)AABB");
GST_DEBUG ("merged: (%d) %" GST_PTR_FORMAT, gst_caps_get_size (c2), c2);
fail_unless (gst_caps_get_size (c2) == 1, NULL);
gst_caps_unref (c2);
c1 = gst_caps_from_string ("video/x-foo, data=(buffer)AA");
c2 = gst_caps_from_string ("video/x-foo, data=(buffer)AABB");