gstreamer/testsuite/bins/interface.c

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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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 <gst/gst.h>
/* tests if gst_bin_get_(all_)by_interface works */
gint
main (gint argc, gchar * argv[])
{
GstBin *bin, *bin2;
GList *list;
GstElement *filesrc;
gst_init (&argc, &argv);
bin = GST_BIN (gst_bin_new (NULL));
g_assert (bin);
filesrc = gst_element_factory_make ("filesrc", NULL);
g_assert (filesrc);
g_assert (GST_IS_URI_HANDLER (filesrc));
gst_bin_add (bin, filesrc);
g_assert (gst_bin_get_by_interface (bin, GST_TYPE_URI_HANDLER) == filesrc);
list = gst_bin_get_all_by_interface (bin, GST_TYPE_URI_HANDLER);
g_assert (g_list_length (list) == 1);
g_assert (list->data == (gpointer) filesrc);
g_list_free (list);
gst_bin_add_many (bin,
gst_element_factory_make ("identity", NULL),
gst_element_factory_make ("identity", NULL),
gst_element_factory_make ("identity", NULL), NULL);
g_assert (gst_bin_get_by_interface (bin, GST_TYPE_URI_HANDLER) == filesrc);
list = gst_bin_get_all_by_interface (bin, GST_TYPE_URI_HANDLER);
g_assert (g_list_length (list) == 1);
g_assert (list->data == (gpointer) filesrc);
g_list_free (list);
bin2 = bin;
bin = GST_BIN (gst_bin_new (NULL));
g_assert (bin);
gst_bin_add_many (bin,
gst_element_factory_make ("identity", NULL),
gst_element_factory_make ("identity", NULL),
GST_ELEMENT (bin2), gst_element_factory_make ("identity", NULL), NULL);
g_assert (gst_bin_get_by_interface (bin, GST_TYPE_URI_HANDLER) == filesrc);
list = gst_bin_get_all_by_interface (bin, GST_TYPE_URI_HANDLER);
g_assert (g_list_length (list) == 1);
g_assert (list->data == (gpointer) filesrc);
g_list_free (list);
gst_bin_add (bin, gst_element_factory_make ("filesrc", NULL));
gst_bin_add (bin2, gst_element_factory_make ("filesrc", NULL));
list = gst_bin_get_all_by_interface (bin, GST_TYPE_URI_HANDLER);
g_assert (g_list_length (list) == 3);
g_list_free (list);
g_object_unref (bin);
return 0;
}