gstreamer/testsuite/threads/threade.c

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#include <gst/gst.h>
#include <unistd.h>
/* threadc.c
* this tests if we can make a GstBin and iterate it inside a GThread
*/
#define MAX_IDENTITIES 29
#define RUNS_PER_IDENTITY 5
volatile gboolean running = FALSE;
volatile gboolean done = FALSE;
static void
construct_pipeline (GstElement * pipeline, gint identities)
{
GstElement *src, *sink, *identity = NULL;
GstElement *from;
int i;
src = gst_element_factory_make ("fakesrc", NULL);
sink = gst_element_factory_make ("fakesink", NULL);
g_assert (src);
g_assert (sink);
gst_bin_add_many (GST_BIN (pipeline), src, sink, NULL);
from = src;
for (i = 0; i < identities; ++i) {
identity = gst_element_factory_make ("identity", NULL);
g_assert (identity);
gst_bin_add (GST_BIN (pipeline), identity);
gst_element_link (from, identity);
from = identity;
}
gst_element_link (identity, sink);
g_object_set (G_OBJECT (src), "num_buffers", 10, "sizetype", 3, NULL);
}
static void
iterator (GstElement * bin)
{
gst_element_set_state (bin, GST_STATE_PLAYING);
while (gst_bin_iterate (GST_BIN (bin)))
g_print ("+");
gst_element_set_state (bin, GST_STATE_NULL);
g_print ("\n");
done = TRUE;
}
int
main (gint argc, gchar * argv[])
{
int runs = MAX_IDENTITIES * RUNS_PER_IDENTITY;
int i;
GstElement *pipeline;
g_thread_init (NULL);
gst_init (&argc, &argv);
for (i = 0; i < runs; ++i) {
pipeline = gst_pipeline_new ("main_pipeline");
g_assert (pipeline);
/* connect state change signal */
construct_pipeline (pipeline, i / RUNS_PER_IDENTITY + 1);
done = FALSE;
g_thread_create ((GThreadFunc) iterator, pipeline, FALSE, NULL);
g_print ("Created GThread\n");
g_print ("Waiting for thread PLAYING->PAUSED\n");
while (!done) /* do nothing */
;
running = FALSE;
g_print ("Unreffing pipeline\n");
g_object_unref (G_OBJECT (pipeline));
}
return 0;
}