/* GStreamer * Copyright (C) 2005 Wim Taymans * * gstghostpad.c: Unit test for GstGhostPad * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #include /* test if removing a bin also cleans up the ghostpads */ GST_START_TEST (test_remove1) { GstElement *b1, *b2, *src, *sink; GstPad *srcpad, *sinkpad; GstPadLinkReturn ret; b1 = gst_element_factory_make ("pipeline", NULL); b2 = gst_element_factory_make ("bin", NULL); src = gst_element_factory_make ("fakesrc", NULL); sink = gst_element_factory_make ("fakesink", NULL); ASSERT_OBJECT_REFCOUNT (b1, "pipeline", 1); ASSERT_OBJECT_REFCOUNT (b2, "bin", 1); fail_unless (gst_bin_add (GST_BIN (b2), sink)); fail_unless (gst_bin_add (GST_BIN (b1), src)); ASSERT_OBJECT_REFCOUNT (b1, "pipeline", 1); ASSERT_OBJECT_REFCOUNT (b2, "bin", 1); fail_unless (gst_bin_add (GST_BIN (b1), b2)); ASSERT_OBJECT_REFCOUNT (b1, "pipeline", 1); ASSERT_OBJECT_REFCOUNT (b2, "bin", 1); sinkpad = gst_element_get_static_pad (sink, "sink"); gst_element_add_pad (b2, gst_ghost_pad_new ("sink", sinkpad)); gst_object_unref (sinkpad); srcpad = gst_element_get_static_pad (src, "src"); /* get the ghostpad */ sinkpad = gst_element_get_static_pad (b2, "sink"); ret = gst_pad_link (srcpad, sinkpad); fail_unless (ret == GST_PAD_LINK_OK); gst_object_unref (srcpad); gst_object_unref (sinkpad); /* now remove the bin with the ghostpad, b2 is disposed now. */ ASSERT_OBJECT_REFCOUNT (b1, "pipeline", 1); ASSERT_OBJECT_REFCOUNT (b2, "bin", 1); gst_bin_remove (GST_BIN (b1), b2); srcpad = gst_element_get_static_pad (src, "src"); /* pad cannot be linked now */ fail_if (gst_pad_is_linked (srcpad)); gst_object_unref (srcpad); ASSERT_OBJECT_REFCOUNT (b1, "pipeline", 1); gst_object_unref (b1); } GST_END_TEST; /* test if removing a bin also cleans up the ghostpads */ GST_START_TEST (test_remove2) { GstElement *b1, *b2, *src, *sink; GstPad *srcpad, *sinkpad; GstPadLinkReturn ret; b1 = gst_element_factory_make ("pipeline", NULL); b2 = gst_element_factory_make ("bin", NULL); src = gst_element_factory_make ("fakesrc", NULL); sink = gst_element_factory_make ("fakesink", NULL); ASSERT_OBJECT_REFCOUNT (src, "src", 1); fail_unless (gst_bin_add (GST_BIN (b2), sink)); fail_unless (gst_bin_add (GST_BIN (b1), src)); fail_unless (gst_bin_add (GST_BIN (b1), b2)); ASSERT_OBJECT_REFCOUNT (src, "src", 1); sinkpad = gst_element_get_static_pad (sink, "sink"); gst_element_add_pad (b2, gst_ghost_pad_new ("sink", sinkpad)); gst_object_unref (sinkpad); srcpad = gst_element_get_static_pad (src, "src"); ASSERT_OBJECT_REFCOUNT (srcpad, "srcpad", 2); /* since we got one */ /* get the ghostpad */ sinkpad = gst_element_get_static_pad (b2, "sink"); ASSERT_OBJECT_REFCOUNT (sinkpad, "sinkpad", 2); /* since we got one */ GST_DEBUG ("linking srcpad and sinkpad"); ret = gst_pad_link (srcpad, sinkpad); GST_DEBUG ("linked srcpad and sinkpad"); fail_unless (ret == GST_PAD_LINK_OK); /* the linking causes a proxypad to be created for srcpad, * to which sinkpad gets linked. This proxypad has a ref to srcpad */ ASSERT_OBJECT_REFCOUNT (srcpad, "srcpad", 3); ASSERT_OBJECT_REFCOUNT (sinkpad, "sinkpad", 2); gst_object_unref (srcpad); gst_object_unref (sinkpad); /* now remove the sink from the bin */ gst_bin_remove (GST_BIN (b2), sink); srcpad = gst_element_get_static_pad (src, "src"); /* pad is still linked to ghostpad */ fail_if (!gst_pad_is_linked (srcpad)); ASSERT_OBJECT_REFCOUNT (src, "src", 1); ASSERT_OBJECT_REFCOUNT (srcpad, "srcpad", 3); gst_object_unref (srcpad); ASSERT_OBJECT_REFCOUNT (sinkpad, "sinkpad", 1); /* cleanup */ /* now unlink the pads */ gst_pad_unlink (srcpad, sinkpad); ASSERT_OBJECT_REFCOUNT (srcpad, "srcpad", 1); /* proxy has dropped ref */ ASSERT_OBJECT_REFCOUNT (sinkpad, "sinkpad", 1); ASSERT_OBJECT_REFCOUNT (src, "src", 1); ASSERT_OBJECT_REFCOUNT (b2, "bin", 1); /* remove b2 from b1 */ gst_bin_remove (GST_BIN (b1), b2); /* flush the message, dropping the b1 refcount to 1 */ gst_element_set_state (b1, GST_STATE_READY); gst_element_set_state (b1, GST_STATE_NULL); ASSERT_OBJECT_REFCOUNT (b1, "pipeline", 1); gst_object_unref (b1); } GST_END_TEST; /* test if a ghost pad without a target can be linked and * unlinked. An untargeted ghostpad has a default ANY caps unless there * is a padtemplate that says something else. */ GST_START_TEST (test_ghost_pads_notarget) { GstElement *b1, *b2, *sink; GstPad *srcpad, *sinkpad, *peer; GstPadLinkReturn ret; gboolean bret; GstBus *bus; GstCaps *caps; b1 = gst_element_factory_make ("pipeline", NULL); /* make sure all messages are discarded */ bus = gst_pipeline_get_bus (GST_PIPELINE (b1)); gst_bus_set_flushing (bus, TRUE); gst_object_unref (bus); b2 = gst_element_factory_make ("bin", NULL); sink = gst_element_factory_make ("fakesink", NULL); fail_unless (gst_bin_add (GST_BIN (b1), sink)); fail_unless (gst_bin_add (GST_BIN (b1), b2)); srcpad = gst_ghost_pad_new_no_target ("src", GST_PAD_SRC); fail_unless (srcpad != NULL); sinkpad = gst_element_get_static_pad (sink, "sink"); fail_unless (sinkpad != NULL); ret = gst_pad_link (srcpad, sinkpad); fail_unless (ret == GST_PAD_LINK_OK); /* check if the peers are ok */ peer = gst_pad_get_peer (srcpad); fail_unless (peer == sinkpad); gst_object_unref (peer); peer = gst_pad_get_peer (sinkpad); fail_unless (peer == srcpad); gst_object_unref (peer); /* check caps, untargetted pad should return ANY or the padtemplate caps * when it was created from a template */ caps = gst_pad_get_caps (srcpad); fail_unless (gst_caps_is_any (caps)); gst_caps_unref (caps); /* unlink */ bret = gst_pad_unlink (srcpad, sinkpad); fail_unless (bret == TRUE); /* cleanup */ gst_object_unref (srcpad); gst_object_unref (sinkpad); gst_object_unref (b1); } GST_END_TEST; /* test if linking fails over different bins using a pipeline * like this: * * fakesrc num_buffers=10 ! ( fakesink ) * */ GST_START_TEST (test_link) { GstElement *b1, *b2, *src, *sink; GstPad *srcpad, *sinkpad, *gpad; GstPadLinkReturn ret; b1 = gst_element_factory_make ("pipeline", NULL); b2 = gst_element_factory_make ("bin", NULL); src = gst_element_factory_make ("fakesrc", NULL); sink = gst_element_factory_make ("fakesink", NULL); fail_unless (gst_bin_add (GST_BIN (b2), sink)); fail_unless (gst_bin_add (GST_BIN (b1), src)); fail_unless (gst_bin_add (GST_BIN (b1), b2)); srcpad = gst_element_get_static_pad (src, "src"); fail_unless (srcpad != NULL); sinkpad = gst_element_get_static_pad (sink, "sink"); fail_unless (sinkpad != NULL); /* linking in different hierarchies should fail */ ret = gst_pad_link (srcpad, sinkpad); fail_unless (ret == GST_PAD_LINK_WRONG_HIERARCHY); /* now setup a ghostpad */ gpad = gst_ghost_pad_new ("sink", sinkpad); gst_object_unref (sinkpad); /* need to ref as _add_pad takes ownership */ gst_object_ref (gpad); gst_element_add_pad (b2, gpad); /* our new sinkpad */ sinkpad = gpad; /* and linking should work now */ ret = gst_pad_link (srcpad, sinkpad); fail_unless (ret == GST_PAD_LINK_OK); /* flush the message, dropping the b1 refcount to 1 */ gst_element_set_state (b1, GST_STATE_READY); gst_element_set_state (b1, GST_STATE_NULL); ASSERT_OBJECT_REFCOUNT (b1, "pipeline", 1); gst_object_unref (srcpad); gst_object_unref (sinkpad); gst_object_unref (b1); } GST_END_TEST; /* test if ghostpads are created automagically when using * gst_element_link_pads. * * fakesrc num_buffers=10 ! ( identity ) ! fakesink */ GST_START_TEST (test_ghost_pads) { GstElement *b1, *b2, *src, *i1, *sink; GstPad *gsink, *gsrc, *gisrc, *gisink, *isink, *isrc, *fsrc, *fsink; GstStateChangeReturn ret; b1 = gst_element_factory_make ("pipeline", NULL); b2 = gst_element_factory_make ("bin", NULL); src = gst_element_factory_make ("fakesrc", NULL); g_object_set (src, "num-buffers", (int) 10, NULL); i1 = gst_element_factory_make ("identity", NULL); sink = gst_element_factory_make ("fakesink", NULL); fail_unless (gst_bin_add (GST_BIN (b2), i1)); fail_unless (gst_bin_add (GST_BIN (b1), src)); fail_unless (gst_bin_add (GST_BIN (b1), b2)); fail_unless (gst_bin_add (GST_BIN (b1), sink)); fail_unless (gst_element_link_pads (src, NULL, i1, NULL)); fail_unless (gst_element_link_pads (i1, NULL, sink, NULL)); GST_OBJECT_LOCK (b2); fail_unless (b2->numsinkpads == 1); fail_unless (GST_IS_GHOST_PAD (b2->sinkpads->data)); fail_unless (b2->numsrcpads == 1); fail_unless (GST_IS_GHOST_PAD (b2->srcpads->data)); GST_OBJECT_UNLOCK (b2); fsrc = gst_element_get_static_pad (src, "src"); fail_unless (fsrc != NULL); gsink = GST_PAD (gst_object_ref (b2->sinkpads->data)); fail_unless (gsink != NULL); gsrc = GST_PAD (gst_object_ref (b2->srcpads->data)); fail_unless (gsrc != NULL); fsink = gst_element_get_static_pad (sink, "sink"); fail_unless (fsink != NULL); isink = gst_element_get_static_pad (i1, "sink"); fail_unless (isink != NULL); isrc = gst_element_get_static_pad (i1, "src"); fail_unless (isrc != NULL); gisrc = gst_pad_get_peer (isink); fail_unless (gisrc != NULL); gisink = gst_pad_get_peer (isrc); fail_unless (gisink != NULL); /* all objects above have one refcount owned by us as well */ ASSERT_OBJECT_REFCOUNT (fsrc, "fsrc", 3); /* parent and gisrc */ ASSERT_OBJECT_REFCOUNT (gsink, "gsink", 2); /* parent */ ASSERT_OBJECT_REFCOUNT (gsrc, "gsrc", 2); /* parent */ ASSERT_OBJECT_REFCOUNT (fsink, "fsink", 3); /* parent and gisink */ ASSERT_OBJECT_REFCOUNT (gisrc, "gisrc", 2); /* parent */ ASSERT_OBJECT_REFCOUNT (isink, "isink", 3); /* parent and gsink */ ASSERT_OBJECT_REFCOUNT (gisink, "gisink", 2); /* parent */ ASSERT_OBJECT_REFCOUNT (isrc, "isrc", 3); /* parent and gsrc */ ret = gst_element_set_state (b1, GST_STATE_PLAYING); ret = gst_element_get_state (b1, NULL, NULL, GST_CLOCK_TIME_NONE); fail_unless (ret == GST_STATE_CHANGE_SUCCESS); ret = gst_element_set_state (b1, GST_STATE_NULL); ret = gst_element_get_state (b1, NULL, NULL, GST_CLOCK_TIME_NONE); fail_unless (ret == GST_STATE_CHANGE_SUCCESS); gst_object_unref (b1); /* unreffing the bin will unref all elements, which will unlink and unparent * all pads */ /* wait for thread to settle down */ while (GST_OBJECT_REFCOUNT_VALUE (fsrc) > 2) THREAD_SWITCH (); ASSERT_OBJECT_REFCOUNT (fsrc, "fsrc", 1); ASSERT_OBJECT_REFCOUNT (gsink, "gsink", 1); ASSERT_OBJECT_REFCOUNT (gsrc, "gsink", 1); ASSERT_OBJECT_REFCOUNT (fsink, "fsink", 1); ASSERT_OBJECT_REFCOUNT (gisrc, "gisrc", 2); /* gsink */ ASSERT_OBJECT_REFCOUNT (isink, "isink", 2); /* gsink */ ASSERT_OBJECT_REFCOUNT (gisink, "gisink", 2); /* gsrc */ ASSERT_OBJECT_REFCOUNT (isrc, "isrc", 2); /* gsrc */ gst_object_unref (gsink); ASSERT_OBJECT_REFCOUNT (isink, "isink", 1); ASSERT_OBJECT_REFCOUNT (gisrc, "gisrc", 1); ASSERT_OBJECT_REFCOUNT (fsrc, "fsrc", 1); gst_object_unref (gisrc); ASSERT_OBJECT_REFCOUNT (fsrc, "fsrc", 1); gst_object_unref (gsrc); ASSERT_OBJECT_REFCOUNT (isrc, "isrc", 1); ASSERT_OBJECT_REFCOUNT (gisink, "gisink", 1); ASSERT_OBJECT_REFCOUNT (fsink, "fsink", 1); gst_object_unref (gisink); ASSERT_OBJECT_REFCOUNT (fsink, "fsink", 1); gst_object_unref (fsrc); gst_object_unref (isrc); gst_object_unref (isink); gst_object_unref (fsink); } GST_END_TEST; GST_START_TEST (test_ghost_pads_bin) { GstBin *pipeline; GstBin *srcbin; GstBin *sinkbin; GstElement *src; GstElement *sink; GstPad *srcpad, *srcghost, *target; GstPad *sinkpad, *sinkghost; pipeline = GST_BIN (gst_pipeline_new ("pipe")); ASSERT_OBJECT_REFCOUNT (pipeline, "pipeline", 1); srcbin = GST_BIN (gst_bin_new ("srcbin")); gst_bin_add (pipeline, GST_ELEMENT (srcbin)); ASSERT_OBJECT_REFCOUNT (pipeline, "pipeline", 1); sinkbin = GST_BIN (gst_bin_new ("sinkbin")); gst_bin_add (pipeline, GST_ELEMENT (sinkbin)); ASSERT_OBJECT_REFCOUNT (pipeline, "pipeline", 1); src = gst_element_factory_make ("fakesrc", "src"); gst_bin_add (srcbin, src); srcpad = gst_element_get_static_pad (src, "src"); srcghost = gst_ghost_pad_new ("src", srcpad); gst_object_unref (srcpad); gst_element_add_pad (GST_ELEMENT (srcbin), srcghost); sink = gst_element_factory_make ("fakesink", "sink"); gst_bin_add (sinkbin, sink); sinkpad = gst_element_get_static_pad (sink, "sink"); sinkghost = gst_ghost_pad_new ("sink", sinkpad); gst_object_unref (sinkpad); gst_element_add_pad (GST_ELEMENT (sinkbin), sinkghost); gst_element_link (GST_ELEMENT (srcbin), GST_ELEMENT (sinkbin)); fail_unless (GST_PAD_PEER (srcghost) != NULL); fail_unless (GST_PAD_PEER (sinkghost) != NULL); target = gst_ghost_pad_get_target (GST_GHOST_PAD (srcghost)); fail_unless (GST_PAD_PEER (target) != NULL); gst_object_unref (target); target = gst_ghost_pad_get_target (GST_GHOST_PAD (sinkghost)); fail_unless (GST_PAD_PEER (target) != NULL); gst_object_unref (target); ASSERT_OBJECT_REFCOUNT (pipeline, "pipeline", 1); gst_object_unref (pipeline); } GST_END_TEST; typedef struct { GMutex *mutex; GCond *cond; } BlockData; static void block_callback (GstPad * pad, gboolean blocked, gpointer user_data) { BlockData *block_data = (BlockData *) user_data; g_mutex_lock (block_data->mutex); GST_DEBUG ("blocked\n"); g_cond_signal (block_data->cond); g_mutex_unlock (block_data->mutex); } GST_START_TEST (test_ghost_pads_block) { GstBin *pipeline; GstBin *srcbin; GstElement *src; GstPad *srcpad; GstPad *srcghost; BlockData block_data; pipeline = GST_BIN (gst_pipeline_new ("pipeline")); srcbin = GST_BIN (gst_bin_new ("srcbin")); gst_bin_add (pipeline, GST_ELEMENT (srcbin)); src = gst_element_factory_make ("fakesrc", "src"); gst_bin_add (srcbin, src); srcpad = gst_element_get_static_pad (src, "src"); srcghost = gst_ghost_pad_new ("src", srcpad); gst_element_add_pad (GST_ELEMENT (srcbin), srcghost); gst_object_unref (srcpad); block_data.mutex = g_mutex_new (); block_data.cond = g_cond_new (); g_mutex_lock (block_data.mutex); gst_pad_set_blocked_async (srcghost, TRUE, block_callback, &block_data); gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING); /* and wait now */ g_cond_wait (block_data.cond, block_data.mutex); gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL); g_mutex_unlock (block_data.mutex); g_mutex_free (block_data.mutex); g_cond_free (block_data.cond); ASSERT_OBJECT_REFCOUNT (pipeline, "pipeline", 1); gst_object_unref (pipeline); } GST_END_TEST; GST_START_TEST (test_ghost_pads_probes) { GstBin *pipeline; GstBin *srcbin; GstElement *src; GstPad *srcpad; GstPad *srcghost; BlockData block_data; pipeline = GST_BIN (gst_pipeline_new ("pipeline")); srcbin = GST_BIN (gst_bin_new ("srcbin")); gst_bin_add (pipeline, GST_ELEMENT (srcbin)); src = gst_element_factory_make ("fakesrc", "src"); gst_bin_add (srcbin, src); srcpad = gst_element_get_static_pad (src, "src"); srcghost = gst_ghost_pad_new ("src", srcpad); gst_element_add_pad (GST_ELEMENT (srcbin), srcghost); gst_object_unref (srcpad); block_data.mutex = g_mutex_new (); block_data.cond = g_cond_new (); g_mutex_lock (block_data.mutex); gst_pad_set_blocked_async (srcghost, TRUE, block_callback, &block_data); gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING); /* and wait now */ g_cond_wait (block_data.cond, block_data.mutex); gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL); g_mutex_unlock (block_data.mutex); g_mutex_free (block_data.mutex); g_cond_free (block_data.cond); ASSERT_OBJECT_REFCOUNT (pipeline, "pipeline", 1); gst_object_unref (pipeline); } GST_END_TEST; GST_START_TEST (test_ghost_pads_new_from_template) { GstPad *sinkpad, *ghostpad; GstPadTemplate *padtempl, *ghosttempl; GstCaps *padcaps, *ghostcaps, *newcaps; padcaps = gst_caps_from_string ("some/caps"); fail_unless (padcaps != NULL); ghostcaps = gst_caps_from_string ("some/caps;some/other-caps"); fail_unless (ghostcaps != NULL); padtempl = gst_pad_template_new ("padtempl", GST_PAD_SINK, GST_PAD_ALWAYS, gst_caps_copy (padcaps)); fail_unless (padtempl != NULL); ghosttempl = gst_pad_template_new ("ghosttempl", GST_PAD_SINK, GST_PAD_ALWAYS, ghostcaps); sinkpad = gst_pad_new_from_template (padtempl, "sinkpad"); fail_unless (sinkpad != NULL); ghostpad = gst_ghost_pad_new_from_template ("ghostpad", sinkpad, ghosttempl); fail_unless (ghostpad != NULL); /* check template is properly set */ fail_unless (GST_PAD_PAD_TEMPLATE (ghostpad) == ghosttempl); /* check ghostpad caps are from the sinkpad */ newcaps = gst_pad_get_caps (ghostpad); fail_unless (newcaps != NULL); fail_unless (gst_caps_is_equal (newcaps, padcaps)); gst_caps_unref (newcaps); gst_caps_unref (padcaps); gst_object_unref (sinkpad); gst_object_unref (ghostpad); gst_object_unref (padtempl); gst_object_unref (ghosttempl); } GST_END_TEST; GST_START_TEST (test_ghost_pads_new_no_target_from_template) { GstPad *sinkpad, *ghostpad; GstPadTemplate *padtempl, *ghosttempl; GstCaps *padcaps, *ghostcaps, *newcaps; padcaps = gst_caps_from_string ("some/caps"); fail_unless (padcaps != NULL); ghostcaps = gst_caps_from_string ("some/caps;some/other-caps"); fail_unless (ghostcaps != NULL); padtempl = gst_pad_template_new ("padtempl", GST_PAD_SINK, GST_PAD_ALWAYS, gst_caps_copy (padcaps)); fail_unless (padtempl != NULL); ghosttempl = gst_pad_template_new ("ghosttempl", GST_PAD_SINK, GST_PAD_ALWAYS, gst_caps_copy (ghostcaps)); sinkpad = gst_pad_new_from_template (padtempl, "sinkpad"); fail_unless (sinkpad != NULL); ghostpad = gst_ghost_pad_new_no_target_from_template ("ghostpad", ghosttempl); fail_unless (ghostpad != NULL); /* check template is properly set */ fail_unless (GST_PAD_PAD_TEMPLATE (ghostpad) == ghosttempl); /* check ghostpad caps are from the ghostpad template */ newcaps = gst_pad_get_caps (ghostpad); fail_unless (newcaps != NULL); fail_unless (gst_caps_is_equal (newcaps, ghostcaps)); gst_caps_unref (newcaps); fail_unless (gst_ghost_pad_set_target ((GstGhostPad *) ghostpad, sinkpad)); /* check ghostpad caps are now from the target pad */ newcaps = gst_pad_get_caps (ghostpad); fail_unless (newcaps != NULL); fail_unless (gst_caps_is_equal (newcaps, padcaps)); gst_caps_unref (newcaps); gst_object_unref (sinkpad); gst_object_unref (ghostpad); gst_object_unref (padtempl); gst_object_unref (ghosttempl); gst_caps_unref (padcaps); gst_caps_unref (ghostcaps); } GST_END_TEST; static Suite * gst_ghost_pad_suite (void) { Suite *s = suite_create ("GstGhostPad"); TCase *tc_chain = tcase_create ("ghost pad tests"); suite_add_tcase (s, tc_chain); tcase_add_test (tc_chain, test_remove1); tcase_add_test (tc_chain, test_remove2); tcase_add_test (tc_chain, test_link); tcase_add_test (tc_chain, test_ghost_pads); tcase_add_test (tc_chain, test_ghost_pads_bin); tcase_add_test (tc_chain, test_ghost_pads_notarget); tcase_add_test (tc_chain, test_ghost_pads_block); tcase_add_test (tc_chain, test_ghost_pads_probes); tcase_add_test (tc_chain, test_ghost_pads_new_from_template); tcase_add_test (tc_chain, test_ghost_pads_new_no_target_from_template); return s; } GST_CHECK_MAIN (gst_ghost_pad);