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Original commit message from CVS: * gst/gstelement.c: (gst_element_base_class_init), (gst_element_class_add_pad_template): * gst/gstpadtemplate.c: Make it possible (and recommended) to set element details and add pad templates in the class_init functions by copying the details/pad templates in GstElement's base_init. Also make it possible to replace existing pad templates by adding a new one with the same name. This was done in a hackish fashion in same elements before already. Don't reference pad templates that are added a second time. A new pad template has a refcount of one and is not floating anymore and to be owned by the element's class. Make this more explicit by mentioning it in the docs of gst_element_class_add_pad_template(). These changes are backwards compatible. Fixes bug #491501. * tests/check/gst/gstelement.c: Add unit test for setting element details, adding pad templates and replacing them in a subclass.
409 lines
11 KiB
C
409 lines
11 KiB
C
/* GStreamer
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* Copyright (C) 2005 Thomas Vander Stichele <thomas at apestaart dot org>
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*
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* gstelement.c: Unit test for GstElement
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <gst/check/gstcheck.h>
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GST_START_TEST (test_add_remove_pad)
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{
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GstElement *e;
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GstPad *p;
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/* getting an existing element class is cheating, but easier */
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e = gst_element_factory_make ("fakesrc", "source");
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/* create a new floating pad with refcount 1 */
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p = gst_pad_new ("source", GST_PAD_SRC);
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ASSERT_OBJECT_REFCOUNT (p, "pad", 1);
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/* ref it for ourselves */
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gst_object_ref (p);
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ASSERT_OBJECT_REFCOUNT (p, "pad", 2);
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/* adding it sinks the pad -> not floating, same refcount */
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gst_element_add_pad (e, p);
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ASSERT_OBJECT_REFCOUNT (p, "pad", 2);
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/* removing it reduces the refcount */
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gst_element_remove_pad (e, p);
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ASSERT_OBJECT_REFCOUNT (p, "pad", 1);
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/* clean up our own reference */
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gst_object_unref (p);
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gst_object_unref (e);
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}
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GST_END_TEST;
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GST_START_TEST (test_add_pad_unref_element)
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{
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GstElement *e;
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GstPad *p;
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/* getting an existing element class is cheating, but easier */
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e = gst_element_factory_make ("fakesrc", "source");
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/* create a new floating pad with refcount 1 */
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p = gst_pad_new ("source", GST_PAD_SRC);
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ASSERT_OBJECT_REFCOUNT (p, "pad", 1);
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/* ref it for ourselves */
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gst_object_ref (p);
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ASSERT_OBJECT_REFCOUNT (p, "pad", 2);
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/* adding it sinks the pad -> not floating, same refcount */
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gst_element_add_pad (e, p);
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ASSERT_OBJECT_REFCOUNT (p, "pad", 2);
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/* unreffing the element should clean it up */
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gst_object_unref (GST_OBJECT (e));
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ASSERT_OBJECT_REFCOUNT (p, "pad", 1);
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/* clean up our own reference */
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gst_object_unref (p);
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}
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GST_END_TEST;
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GST_START_TEST (test_error_no_bus)
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{
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GstElement *e;
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GstBus *bus;
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e = gst_element_factory_make ("fakesrc", "source");
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/* get the bus, should be NULL */
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bus = gst_element_get_bus (e);
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fail_if (bus != NULL);
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/* I don't want errors shown */
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gst_debug_set_default_threshold (GST_LEVEL_NONE);
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GST_ELEMENT_ERROR (e, RESOURCE, OPEN_READ, ("I could not read"), ("debug"));
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gst_object_unref (e);
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}
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GST_END_TEST;
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/* link and run two elements without putting them in a pipeline */
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GST_START_TEST (test_link)
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{
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GstElement *src, *sink;
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src = gst_element_factory_make ("fakesrc", "source");
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sink = gst_element_factory_make ("fakesink", "sink");
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fail_unless (gst_element_link_pads (src, "src", sink, "sink"));
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/* do sink to source state change */
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gst_element_set_state (sink, GST_STATE_PAUSED);
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gst_element_set_state (src, GST_STATE_PAUSED);
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/* wait for preroll */
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gst_element_get_state (sink, NULL, NULL, GST_CLOCK_TIME_NONE);
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/* play some more */
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gst_element_set_state (sink, GST_STATE_PLAYING);
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gst_element_set_state (src, GST_STATE_PLAYING);
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g_usleep (G_USEC_PER_SEC);
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/* and stop */
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gst_element_set_state (sink, GST_STATE_PAUSED);
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gst_element_set_state (src, GST_STATE_PAUSED);
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/* wait for preroll */
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gst_element_get_state (sink, NULL, NULL, GST_CLOCK_TIME_NONE);
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gst_element_set_state (sink, GST_STATE_NULL);
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gst_element_set_state (src, GST_STATE_NULL);
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gst_element_get_state (sink, NULL, NULL, GST_CLOCK_TIME_NONE);
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g_usleep (G_USEC_PER_SEC / 2);
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ASSERT_OBJECT_REFCOUNT (sink, "sink", 1);
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ASSERT_OBJECT_REFCOUNT (src, "src", 1);
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gst_element_unlink_pads (src, "src", sink, "sink");
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ASSERT_OBJECT_REFCOUNT (sink, "sink", 1);
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ASSERT_OBJECT_REFCOUNT (src, "src", 1);
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gst_object_unref (src);
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gst_object_unref (sink);
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}
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GST_END_TEST;
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/* linking two elements without pads should fail */
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GST_START_TEST (test_link_no_pads)
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{
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GstElement *src, *sink;
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src = gst_bin_new ("src");
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sink = gst_bin_new ("sink");
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fail_if (gst_element_link (src, sink));
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gst_object_unref (src);
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gst_object_unref (sink);
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}
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GST_END_TEST;
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/* check if the elementfactory of a class is filled (see #131079) */
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GST_START_TEST (test_class)
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{
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GstElementClass *klass;
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GstElementFactory *factory, *tmp;
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GType type;
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GST_DEBUG ("finding factory for queue");
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factory = gst_element_factory_find ("queue");
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fail_if (factory == NULL);
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GST_DEBUG ("getting the type");
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/* feature is not loaded, should return 0 as the type */
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type = gst_element_factory_get_element_type (factory);
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fail_if (type != 0);
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GST_DEBUG ("now loading the plugin");
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tmp =
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GST_ELEMENT_FACTORY (gst_plugin_feature_load (GST_PLUGIN_FEATURE
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(factory)));
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fail_if (tmp == NULL);
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gst_object_unref (factory);
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factory = tmp;
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/* feature is now loaded */
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type = gst_element_factory_get_element_type (factory);
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fail_if (type == 0);
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klass = g_type_class_ref (factory->type);
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fail_if (klass == NULL);
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GST_DEBUG ("checking the element factory class field");
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/* and elementfactory is filled in */
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fail_if (klass->elementfactory == NULL);
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fail_if (klass->elementfactory != factory);
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}
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GST_END_TEST;
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typedef struct _GstTestElement
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{
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GstElement parent;
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} GstTestElement;
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typedef struct _GstTestElementClass
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{
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GstElementClass parent;
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} GstTestElementClass;
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static void
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gst_test_element_class_init (GstTestElementClass * klass)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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GstPadTemplate *templ;
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gst_element_class_set_details_simple (element_class, "Test element",
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"Element", "Does nothing", "Foo Bar <foo@bar.com>");
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fail_unless_equals_int (g_list_length (gst_element_class_get_pad_template_list
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(element_class)), 0);
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fail_unless (gst_element_class_get_pad_template (element_class,
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"test") == NULL);
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gst_element_class_add_pad_template (element_class,
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gst_pad_template_new ("test", GST_PAD_SRC, GST_PAD_ALWAYS, GST_CAPS_ANY));
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fail_unless_equals_int (g_list_length (gst_element_class_get_pad_template_list
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(element_class)), 1);
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fail_unless ((templ =
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gst_element_class_get_pad_template (element_class, "test")) != NULL);
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fail_unless (gst_caps_is_any (templ->caps));
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gst_element_class_add_pad_template (element_class,
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gst_pad_template_new ("test2", GST_PAD_SRC, GST_PAD_ALWAYS,
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GST_CAPS_ANY));
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fail_unless_equals_int (g_list_length (gst_element_class_get_pad_template_list
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(element_class)), 2);
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fail_unless ((templ =
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gst_element_class_get_pad_template (element_class, "test2")) != NULL);
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fail_unless (gst_caps_is_any (templ->caps));
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/* Add "test" again, with NONE caps this time */
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gst_element_class_add_pad_template (element_class,
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gst_pad_template_new ("test", GST_PAD_SRC, GST_PAD_ALWAYS,
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GST_CAPS_NONE));
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fail_unless_equals_int (g_list_length (gst_element_class_get_pad_template_list
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(element_class)), 2);
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fail_unless ((templ =
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gst_element_class_get_pad_template (element_class, "test")) != NULL);
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fail_unless (gst_caps_is_empty (templ->caps));
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}
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GType
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gst_test_element_get_type (void)
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{
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static GType gst_test_element_type = G_TYPE_NONE;
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if (gst_test_element_type == G_TYPE_NONE) {
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static const GTypeInfo gst_test_element_info = {
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sizeof (GstTestElementClass),
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NULL, /* base_init */
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NULL, /* base_finalize */
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(GClassInitFunc) gst_test_element_class_init,
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NULL,
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NULL,
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sizeof (GstTestElement),
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0,
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NULL, /* instance_init */
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NULL
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};
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gst_test_element_type = g_type_register_static (GST_TYPE_ELEMENT,
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"GstTestElement", &gst_test_element_info, 0);
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}
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return gst_test_element_type;
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}
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typedef struct _GstTestElement2
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{
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GstTestElement parent;
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} GstTestElement2;
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typedef struct _GstTestElement2Class
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{
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GstTestElementClass parent;
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} GstTestElement2Class;
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static void
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gst_test_element2_class_init (GstTestElement2Class * klass)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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GstPadTemplate *templ;
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gst_element_class_set_details_simple (element_class, "Test element 2",
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"Element", "Does nothing", "Foo Bar <foo@bar.com>");
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fail_unless_equals_int (g_list_length (gst_element_class_get_pad_template_list
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(element_class)), 2);
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fail_unless ((templ =
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gst_element_class_get_pad_template (element_class, "test")) != NULL);
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fail_unless (gst_caps_is_empty (templ->caps));
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fail_unless ((templ =
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gst_element_class_get_pad_template (element_class, "test2")) != NULL);
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fail_unless (gst_caps_is_any (templ->caps));
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/* Add "test" pad with ANY caps, should have "test" pad with EMPTY caps before */
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gst_element_class_add_pad_template (element_class,
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gst_pad_template_new ("test", GST_PAD_SRC, GST_PAD_ALWAYS, GST_CAPS_ANY));
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fail_unless_equals_int (g_list_length (gst_element_class_get_pad_template_list
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(element_class)), 2);
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fail_unless ((templ =
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gst_element_class_get_pad_template (element_class, "test")) != NULL);
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fail_unless (gst_caps_is_any (templ->caps));
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gst_element_class_add_pad_template (element_class,
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gst_pad_template_new ("test4", GST_PAD_SRC, GST_PAD_ALWAYS,
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GST_CAPS_ANY));
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fail_unless_equals_int (g_list_length (gst_element_class_get_pad_template_list
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(element_class)), 3);
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fail_unless ((templ =
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gst_element_class_get_pad_template (element_class, "test4")) != NULL);
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fail_unless (gst_caps_is_any (templ->caps));
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}
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GType
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gst_test_element2_get_type (void)
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{
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static GType gst_test_element2_type = G_TYPE_NONE;
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if (gst_test_element2_type == G_TYPE_NONE) {
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static const GTypeInfo gst_test_element2_info = {
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sizeof (GstTestElement2Class),
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NULL, /* base_init */
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NULL, /* base_finalize */
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(GClassInitFunc) gst_test_element2_class_init,
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NULL,
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NULL,
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sizeof (GstTestElement2),
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0,
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NULL, /* instance_init */
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NULL
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};
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gst_test_element2_type =
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g_type_register_static (gst_test_element_get_type (), "GstTestElement2",
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&gst_test_element2_info, 0);
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}
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return gst_test_element2_type;
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}
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GST_START_TEST (test_pad_templates)
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{
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GstTestElement *test;
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GstTestElement2 *test2;
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test = g_object_new (gst_test_element_get_type (), NULL);
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test2 = g_object_new (gst_test_element2_get_type (), NULL);
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g_object_unref (test);
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g_object_unref (test2);
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}
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GST_END_TEST;
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Suite *
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gst_element_suite (void)
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{
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Suite *s = suite_create ("GstElement");
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TCase *tc_chain = tcase_create ("element tests");
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suite_add_tcase (s, tc_chain);
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tcase_add_test (tc_chain, test_add_remove_pad);
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tcase_add_test (tc_chain, test_add_pad_unref_element);
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tcase_add_test (tc_chain, test_error_no_bus);
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tcase_add_test (tc_chain, test_link);
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tcase_add_test (tc_chain, test_link_no_pads);
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tcase_add_test (tc_chain, test_class);
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tcase_add_test (tc_chain, test_pad_templates);
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return s;
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}
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GST_CHECK_MAIN (gst_element);
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