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e040bb2dbe
Original commit message from CVS: 2005-09-02 Andy Wingo <wingo@pobox.com> * gst/gstelement.h (GstState): Renamed from GstElementState, changed to be a normal enum instead of flags. (GstStateChangeReturn): Renamed from GstElementStateReturn, names munged to be GST_STATE_CHANGE_*. (GST_STATE_CHANGE): Renamed from GST_STATE_TRANSITION, updated to work with the new state representation. (GstStateChange): New enumeration of possible state transitions. Replaces GST_STATE_FOO_TO_BAR with GST_STATE_CHANGE_FOO_TO_BAR. (GstElementClass::change_state): Pass the GstStateChange along as an argument. Helps language bindings, so they don't have to use tricky lock-needing macros like GST_STATE_CHANGE (). * scripts/update-states (file): New script. Run it on a file to update it for state naming and API changes. Updates files in place. * All files updated for the new API.
81 lines
2 KiB
C
81 lines
2 KiB
C
#include <gst/gst.h>
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/* threadb.c
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* this tests if we can make a GstThread, put some stuff in it,
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* dispatch it, and let it run from a main gst loop
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* we repeat the main loop a hundred times to test thread reuse
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* underneath GstThread
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*/
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gboolean running = FALSE;
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static void
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construct_pipeline (GstElement * pipeline)
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{
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GstElement *src, *sink, *identity;
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src = gst_element_factory_make ("fakesrc", NULL);
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identity = gst_element_factory_make ("identity", NULL);
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sink = gst_element_factory_make ("fakesink", NULL);
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g_assert (src);
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g_assert (identity);
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g_assert (sink);
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gst_element_link_many (src, identity, sink, NULL);
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gst_bin_add_many (GST_BIN (pipeline), src, identity, sink, NULL);
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g_object_set (G_OBJECT (src), "num_buffers", 5, NULL);
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}
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void
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state_changed (GstElement * el, gint arg1, gint arg2, gpointer user_data)
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{
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GstState state = gst_element_get_state (el);
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g_print ("element %s has changed state to %s\n",
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GST_ELEMENT_NAME (el), gst_element_state_get_name (state));
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if (state == GST_STATE_PLAYING)
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running = TRUE;
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/* if we move from PLAYING to PAUSED, we're done */
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if (state == GST_STATE_PAUSED && running) {
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running = FALSE;
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gst_main_quit ();
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}
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}
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int
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main (gint argc, gchar * argv[])
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{
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int runs = 100;
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int i;
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gulong id;
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GstElement *thread;
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gst_init (&argc, &argv);
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for (i = 0; i < runs; ++i) {
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thread = gst_thread_new ("main_thread");
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g_assert (thread);
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/* connect state change signal */
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id = g_signal_connect (G_OBJECT (thread), "state_change",
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G_CALLBACK (state_changed), NULL);
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construct_pipeline (thread);
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g_print ("Setting thread to play\n");
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gst_element_set_state (thread, GST_STATE_PLAYING);
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g_print ("Going into the main GStreamer loop\n");
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gst_main ();
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g_print ("Coming out of the main GStreamer loop\n");
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g_signal_handler_disconnect (G_OBJECT (thread), id);
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gst_element_set_state (thread, GST_STATE_NULL);
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g_print ("Unreffing thread\n");
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g_object_unref (G_OBJECT (thread));
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running = FALSE;
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}
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return 0;
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}
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