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#include <gst/gst.h>
/* threadb.c
* this tests if we can make a GstThread, put some stuff in it,
* dispatch it, and let it run from a main gst loop
* we repeat the main loop a hundred times to test thread reuse
* underneath GstThread
*/
gboolean running = FALSE;
static void
construct_pipeline (GstElement * pipeline)
{
GstElement *src, *sink, *identity;
src = gst_element_factory_make ("fakesrc", NULL);
identity = gst_element_factory_make ("identity", NULL);
sink = gst_element_factory_make ("fakesink", NULL);
g_assert (src);
g_assert (identity);
g_assert (sink);
gst_element_link_many (src, identity, sink, NULL);
gst_bin_add_many (GST_BIN (pipeline), src, identity, sink, NULL);
g_object_set (G_OBJECT (src), "num_buffers", 5, NULL);
}
void
state_changed (GstElement * el, gint arg1, gint arg2, gpointer user_data)
{
GstElementState state = gst_element_get_state (el);
g_print ("element %s has changed state to %s\n",
GST_ELEMENT_NAME (el), gst_element_state_get_name (state));
if (state == GST_STATE_PLAYING)
running = TRUE;
/* if we move from PLAYING to PAUSED, we're done */
if (state == GST_STATE_PAUSED && running) {
running = FALSE;
gst_main_quit ();
}
}
int
main (gint argc, gchar * argv[])
{
int runs = 100;
int i;
gulong id;
GstElement *thread;
gst_init (&argc, &argv);
for (i = 0; i < runs; ++i) {
thread = gst_thread_new ("main_thread");
g_assert (thread);
/* connect state change signal */
id = g_signal_connect (G_OBJECT (thread), "state_change",
G_CALLBACK (state_changed), NULL);
construct_pipeline (thread);
g_print ("Setting thread to play\n");
gst_element_set_state (thread, GST_STATE_PLAYING);
g_print ("Going into the main GStreamer loop\n");
gst_main ();
g_print ("Coming out of the main GStreamer loop\n");
g_signal_handler_disconnect (G_OBJECT (thread), id);
gst_element_set_state (thread, GST_STATE_NULL);
g_print ("Unreffing thread\n");
g_object_unref (G_OBJECT (thread));
running = FALSE;
}
return 0;
}
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