gstreamer/testsuite/schedulers/relink.c

74 lines
2.3 KiB
C
Raw Normal View History

/* GStreamer
* Copyright (C) 2004 Benjamin Otte <in7y118@public.uni-hamburg.de>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <gst/gst.h>
GstElement *pipeline, *src, *sink;
static void
cb_handoff (GstElement * element, GstBuffer * buffer, GstPad * pad,
gpointer unused)
{
if (GST_PAD_PEER (pad)) {
g_print ("relinking...\n");
gst_pad_unlink (pad, GST_PAD_PEER (pad));
gst_bin_remove (GST_BIN (pipeline), OTHER_ELEMENT);
OTHER_ELEMENT =
gst_element_factory_make ("fake" G_STRINGIFY (OTHER_ELEMENT), NULL);
g_assert (OTHER_ELEMENT);
gst_bin_add (GST_BIN (pipeline), OTHER_ELEMENT);
gst_element_sync_state_with_parent (OTHER_ELEMENT);
gst_element_link (ELEMENT, OTHER_ELEMENT);
}
}
gint
main (gint argc, gchar ** argv)
{
guint i = 0;
gst_init (&argc, &argv);
g_print ("setting up...\n");
/* setup pipeline */
pipeline = gst_element_factory_make ("pipeline", NULL);
g_assert (pipeline);
src = gst_element_factory_make ("fakesrc", NULL);
g_assert (src);
sink = gst_element_factory_make ("fakesink", NULL);
g_assert (sink);
gst_bin_add_many (GST_BIN (pipeline), src, sink, NULL);
gst_element_link (src, sink);
/* setup special stuff */
g_object_set (ELEMENT, "signal-handoffs", TRUE, NULL);
g_signal_connect (ELEMENT, "handoff", (GCallback) cb_handoff, NULL);
/* run pipeline */
g_print ("running...\n");
if (gst_element_set_state (pipeline, GST_STATE_PLAYING) != GST_STATE_SUCCESS)
g_assert_not_reached ();
while (i++ < 10 && gst_bin_iterate (GST_BIN (pipeline)));
g_print ("cleaning up...\n");
gst_object_unref (GST_OBJECT (pipeline));
pipeline = NULL;
g_print ("done.\n");
return 0;
}