2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2000 Wim Taymans <wtay@chello.be>
4 * 2004 Thomas Vander Stichele <thomas@apestaart.org>
6 * gst-launch.c: tool to launch GStreamer pipelines from the command line
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
28 /* FIXME: hack alert */
30 #define DISABLE_FAULT_HANDLER
39 #ifndef DISABLE_FAULT_HANDLER
42 #include <locale.h> /* for LC_ALL */
45 /* FIXME: This is just a temporary hack. We should have a better
46 * check for siginfo handling. */
51 extern volatile gboolean glib_on_error_halt;
53 #ifndef DISABLE_FAULT_HANDLER
54 static void fault_restore (void);
55 static void fault_spin (void);
56 static void sigint_restore (void);
57 static gboolean caught_intr = FALSE;
60 /* event_loop return codes */
61 typedef enum _EventLoopResult
68 static GstElement *pipeline;
69 static EventLoopResult caught_error = ELR_NO_ERROR;
70 static gboolean quiet = FALSE;
71 static gboolean tags = FALSE;
72 static gboolean messages = FALSE;
73 static gboolean is_live = FALSE;
74 static gboolean waiting_eos = FALSE;
76 /* convenience macro so we don't have to litter the code with if(!quiet) */
77 #define PRINT if(!quiet)g_print
79 #if !defined(GST_DISABLE_LOADSAVE) && !defined(GST_REMOVE_DEPRECATED)
81 xmllaunch_parse_cmdline (const gchar ** argv)
83 GstElement *pipeline = NULL, *e;
87 gchar *element, *property, *value;
91 if (!(arg = argv[0])) {
93 _("Usage: gst-xmllaunch <file.xml> [ element.property=value ... ]\n"));
98 /* FIXME guchar from gstxml.c */
99 err = gst_xml_parse_file (xml, (guchar *) arg, NULL);
102 g_printerr (_("ERROR: parse of xml file '%s' failed.\n"), arg);
106 l = gst_xml_get_topelements (xml);
108 g_printerr (_("ERROR: no toplevel pipeline element in file '%s'.\n"), arg);
114 _("WARNING: only one toplevel element is supported at this time.\n"));
117 pipeline = GST_ELEMENT (l->data);
119 while ((arg = argv[++i])) {
120 element = g_strdup (arg);
121 property = strchr (element, '.');
122 value = strchr (element, '=');
124 if (!(element < property && property < value)) {
125 g_printerr (_("ERROR: could not parse command line argument %d: %s.\n"),
134 e = gst_bin_get_by_name (GST_BIN (pipeline), element);
136 g_printerr (_("WARNING: element named '%s' not found.\n"), element);
138 gst_util_set_object_arg (G_OBJECT (e), property, value);
146 gst_object_ref (pipeline);
147 gst_object_unref (xml);
152 #ifndef DISABLE_FAULT_HANDLER
155 fault_handler_sighandler (int signum)
159 /* printf is used instead of g_print(), since it's less likely to
163 fprintf (stderr, "Caught SIGSEGV\n");
167 printf ("Caught SIGQUIT\n");
170 fprintf (stderr, "signo: %d\n", signum);
177 #else /* USE_SIGINFO */
180 fault_handler_sigaction (int signum, siginfo_t * si, void *misc)
184 /* printf is used instead of g_print(), since it's less likely to
186 switch (si->si_signo) {
188 fprintf (stderr, "Caught SIGSEGV accessing address %p\n", si->si_addr);
192 printf ("Caught SIGQUIT\n");
195 fprintf (stderr, "signo: %d\n", si->si_signo);
196 fprintf (stderr, "errno: %d\n", si->si_errno);
197 fprintf (stderr, "code: %d\n", si->si_code);
203 #endif /* USE_SIGINFO */
210 glib_on_error_halt = FALSE;
211 g_on_error_stack_trace ("gst-launch");
215 /* FIXME how do we know if we were run by libtool? */
217 "Spinning. Please run 'gdb gst-launch %d' to continue debugging, "
218 "Ctrl-C to quit, or Ctrl-\\ to dump core.\n", (gint) getpid ());
226 struct sigaction action;
228 memset (&action, 0, sizeof (action));
229 action.sa_handler = SIG_DFL;
231 sigaction (SIGSEGV, &action, NULL);
232 sigaction (SIGQUIT, &action, NULL);
238 struct sigaction action;
240 memset (&action, 0, sizeof (action));
242 action.sa_sigaction = fault_handler_sigaction;
243 action.sa_flags = SA_SIGINFO;
245 action.sa_handler = fault_handler_sighandler;
248 sigaction (SIGSEGV, &action, NULL);
249 sigaction (SIGQUIT, &action, NULL);
251 #endif /* DISABLE_FAULT_HANDLER */
254 print_error_message (GstMessage * msg)
257 gchar *name, *debug = NULL;
259 name = gst_object_get_path_string (msg->src);
260 gst_message_parse_error (msg, &err, &debug);
262 g_printerr (_("ERROR: from element %s: %s\n"), name, err->message);
264 g_printerr (_("Additional debug info:\n%s\n"), debug);
272 print_tag (const GstTagList * list, const gchar * tag, gpointer unused)
276 count = gst_tag_list_get_tag_size (list, tag);
278 for (i = 0; i < count; i++) {
281 if (gst_tag_get_type (tag) == G_TYPE_STRING) {
282 if (!gst_tag_list_get_string_index (list, tag, i, &str))
283 g_assert_not_reached ();
284 } else if (gst_tag_get_type (tag) == GST_TYPE_BUFFER) {
287 img = gst_value_get_buffer (gst_tag_list_get_value_index (list, tag, i));
291 caps_str = GST_BUFFER_CAPS (img) ?
292 gst_caps_to_string (GST_BUFFER_CAPS (img)) : g_strdup ("unknown");
293 str = g_strdup_printf ("buffer of %u bytes, type: %s",
294 GST_BUFFER_SIZE (img), caps_str);
297 str = g_strdup ("NULL buffer");
299 } else if (gst_tag_get_type (tag) == GST_TYPE_DATE_TIME) {
300 GstDateTime *dt = NULL;
302 gst_tag_list_get_date_time_index (list, tag, i, &dt);
303 if (gst_date_time_get_hour (dt) < 0) {
304 str = g_strdup_printf ("%02u-%02u-%04u", gst_date_time_get_day (dt),
305 gst_date_time_get_month (dt), gst_date_time_get_year (dt));
307 gdouble tz_offset = gst_date_time_get_time_zone_offset (dt);
310 if (tz_offset != 0.0) {
311 g_snprintf (tz_str, sizeof (tz_str), "(UTC %s%gh)",
312 (tz_offset > 0.0) ? "+" : "", tz_offset);
314 g_snprintf (tz_str, sizeof (tz_str), "(UTC)");
317 str = g_strdup_printf ("%04u-%02u-%02u %02u:%02u:%02u %s",
318 gst_date_time_get_year (dt), gst_date_time_get_month (dt),
319 gst_date_time_get_day (dt), gst_date_time_get_hour (dt),
320 gst_date_time_get_minute (dt), gst_date_time_get_second (dt),
323 gst_date_time_unref (dt);
326 g_strdup_value_contents (gst_tag_list_get_value_index (list, tag, i));
330 PRINT ("%16s: %s\n", gst_tag_get_nick (tag), str);
332 PRINT ("%16s: %s\n", "", str);
339 #ifndef DISABLE_FAULT_HANDLER
340 /* we only use sighandler here because the registers are not important */
342 sigint_handler_sighandler (int signum)
344 PRINT ("Caught interrupt -- ");
346 /* If we were waiting for an EOS, we still want to catch
347 * the next signal to shutdown properly (and the following one
348 * will quit the program). */
354 /* we set a flag that is checked by the mainloop, we cannot do much in the
355 * interrupt handler (no mutex or other blocking stuff) */
359 /* is called every 250 milliseconds (4 times a second), the interrupt handler
360 * will set a flag for us. We react to this by posting a message. */
362 check_intr (GstElement * pipeline)
368 PRINT ("handling interrupt.\n");
370 /* post an application specific message */
371 gst_element_post_message (GST_ELEMENT (pipeline),
372 gst_message_new_application (GST_OBJECT (pipeline),
373 gst_structure_new ("GstLaunchInterrupt",
374 "message", G_TYPE_STRING, "Pipeline interrupted", NULL)));
376 /* remove timeout handler */
384 struct sigaction action;
386 memset (&action, 0, sizeof (action));
387 action.sa_handler = sigint_handler_sighandler;
389 sigaction (SIGINT, &action, NULL);
393 sigint_restore (void)
395 struct sigaction action;
397 memset (&action, 0, sizeof (action));
398 action.sa_handler = SIG_DFL;
400 sigaction (SIGINT, &action, NULL);
403 /* FIXME 0.11: remove SIGUSR handling (also from man page) */
405 play_handler (int signum)
409 PRINT ("Caught SIGUSR1 - Play request.\n");
410 gst_element_set_state (pipeline, GST_STATE_PLAYING);
413 PRINT ("Caught SIGUSR2 - Stop request.\n");
414 gst_element_set_state (pipeline, GST_STATE_NULL);
420 play_signal_setup (void)
422 struct sigaction action;
424 memset (&action, 0, sizeof (action));
425 action.sa_handler = play_handler;
426 sigaction (SIGUSR1, &action, NULL);
427 sigaction (SIGUSR2, &action, NULL);
429 #endif /* DISABLE_FAULT_HANDLER */
431 /* returns ELR_ERROR if there was an error
432 * or ELR_INTERRUPT if we caught a keyboard interrupt
433 * or ELR_NO_ERROR otherwise. */
434 static EventLoopResult
435 event_loop (GstElement * pipeline, gboolean blocking, GstState target_state)
437 #ifndef DISABLE_FAULT_HANDLER
441 GstMessage *message = NULL;
442 EventLoopResult res = ELR_NO_ERROR;
443 gboolean buffering = FALSE;
445 bus = gst_element_get_bus (GST_ELEMENT (pipeline));
447 #ifndef DISABLE_FAULT_HANDLER
448 timeout_id = g_timeout_add (250, (GSourceFunc) check_intr, pipeline);
452 message = gst_bus_poll (bus, GST_MESSAGE_ANY, blocking ? -1 : 0);
454 /* if the poll timed out, only when !blocking */
458 /* check if we need to dump messages to the console */
461 const GstStructure *s;
464 seqnum = gst_message_get_seqnum (message);
466 s = gst_message_get_structure (message);
468 src_obj = GST_MESSAGE_SRC (message);
470 if (GST_IS_ELEMENT (src_obj)) {
471 PRINT (_("Got message #%u from element \"%s\" (%s): "),
472 (guint) seqnum, GST_ELEMENT_NAME (src_obj),
473 GST_MESSAGE_TYPE_NAME (message));
474 } else if (GST_IS_PAD (src_obj)) {
475 PRINT (_("Got message #%u from pad \"%s:%s\" (%s): "),
476 (guint) seqnum, GST_DEBUG_PAD_NAME (src_obj),
477 GST_MESSAGE_TYPE_NAME (message));
478 } else if (GST_IS_OBJECT (src_obj)) {
479 PRINT (_("Got message #%u from object \"%s\" (%s): "),
480 (guint) seqnum, GST_OBJECT_NAME (src_obj),
481 GST_MESSAGE_TYPE_NAME (message));
483 PRINT (_("Got message #%u (%s): "), (guint) seqnum,
484 GST_MESSAGE_TYPE_NAME (message));
490 sstr = gst_structure_to_string (s);
491 PRINT ("%s\n", sstr);
494 PRINT ("no message details\n");
498 switch (GST_MESSAGE_TYPE (message)) {
499 case GST_MESSAGE_NEW_CLOCK:
503 gst_message_parse_new_clock (message, &clock);
505 PRINT ("New clock: %s\n", (clock ? GST_OBJECT_NAME (clock) : "NULL"));
508 case GST_MESSAGE_CLOCK_LOST:
509 PRINT ("Clock lost, selecting a new one\n");
510 gst_element_set_state (pipeline, GST_STATE_PAUSED);
511 gst_element_set_state (pipeline, GST_STATE_PLAYING);
513 case GST_MESSAGE_EOS:{
515 PRINT (_("Got EOS from element \"%s\".\n"),
516 GST_MESSAGE_SRC_NAME (message));
519 case GST_MESSAGE_TAG:
523 if (GST_IS_ELEMENT (GST_MESSAGE_SRC (message))) {
524 PRINT (_("FOUND TAG : found by element \"%s\".\n"),
525 GST_MESSAGE_SRC_NAME (message));
526 } else if (GST_IS_PAD (GST_MESSAGE_SRC (message))) {
527 PRINT (_("FOUND TAG : found by pad \"%s:%s\".\n"),
528 GST_DEBUG_PAD_NAME (GST_MESSAGE_SRC (message)));
529 } else if (GST_IS_OBJECT (GST_MESSAGE_SRC (message))) {
530 PRINT (_("FOUND TAG : found by object \"%s\".\n"),
531 GST_MESSAGE_SRC_NAME (message));
533 PRINT (_("FOUND TAG\n"));
536 gst_message_parse_tag (message, &tags);
537 gst_tag_list_foreach (tags, print_tag, NULL);
538 gst_tag_list_free (tags);
541 case GST_MESSAGE_INFO:{
544 gchar *name = gst_object_get_path_string (GST_MESSAGE_SRC (message));
546 gst_message_parse_info (message, &gerror, &debug);
548 PRINT (_("INFO:\n%s\n"), debug);
550 g_error_free (gerror);
555 case GST_MESSAGE_WARNING:{
558 gchar *name = gst_object_get_path_string (GST_MESSAGE_SRC (message));
560 /* dump graph on warning */
561 GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS (GST_BIN (pipeline),
562 GST_DEBUG_GRAPH_SHOW_ALL, "gst-launch.warning");
564 gst_message_parse_warning (message, &gerror, &debug);
565 PRINT (_("WARNING: from element %s: %s\n"), name, gerror->message);
567 PRINT (_("Additional debug info:\n%s\n"), debug);
569 g_error_free (gerror);
574 case GST_MESSAGE_ERROR:{
575 /* dump graph on error */
576 GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS (GST_BIN (pipeline),
577 GST_DEBUG_GRAPH_SHOW_ALL, "gst-launch.error");
579 print_error_message (message);
581 /* we have an error */
585 case GST_MESSAGE_STATE_CHANGED:{
586 GstState old, new, pending;
588 /* we only care about pipeline state change messages */
589 if (GST_MESSAGE_SRC (message) != GST_OBJECT_CAST (pipeline))
592 /* ignore when we are buffering since then we mess with the states
595 PRINT (_("Prerolled, waiting for buffering to finish...\n"));
599 gst_message_parse_state_changed (message, &old, &new, &pending);
601 /* if we reached the final target state, exit */
602 if (target_state == GST_STATE_PAUSED && new == target_state)
605 /* else not an interesting message */
608 case GST_MESSAGE_BUFFERING:{
611 gst_message_parse_buffering (message, &percent);
612 PRINT ("%s %d%% \r", _("buffering..."), percent);
614 /* no state management needed for live pipelines */
618 if (percent == 100) {
619 /* a 100% message means buffering is done */
621 /* if the desired state is playing, go back */
622 if (target_state == GST_STATE_PLAYING) {
623 PRINT (_("Done buffering, setting pipeline to PLAYING ...\n"));
624 gst_element_set_state (pipeline, GST_STATE_PLAYING);
629 if (buffering == FALSE && target_state == GST_STATE_PLAYING) {
630 /* we were not buffering but PLAYING, PAUSE the pipeline. */
631 PRINT (_("Buffering, setting pipeline to PAUSED ...\n"));
632 gst_element_set_state (pipeline, GST_STATE_PAUSED);
638 case GST_MESSAGE_LATENCY:
640 PRINT (_("Redistribute latency...\n"));
641 gst_bin_recalculate_latency (GST_BIN (pipeline));
644 case GST_MESSAGE_REQUEST_STATE:
647 gchar *name = gst_object_get_path_string (GST_MESSAGE_SRC (message));
649 gst_message_parse_request_state (message, &state);
651 PRINT (_("Setting state to %s as requested by %s...\n"),
652 gst_element_state_get_name (state), name);
654 gst_element_set_state (pipeline, state);
659 case GST_MESSAGE_APPLICATION:{
660 const GstStructure *s;
662 s = gst_message_get_structure (message);
664 if (gst_structure_has_name (s, "GstLaunchInterrupt")) {
665 /* this application message is posted when we caught an interrupt and
666 * we need to stop the pipeline. */
667 PRINT (_("Interrupt: Stopping pipeline ...\n"));
673 /* just be quiet by default */
677 gst_message_unref (message);
679 g_assert_not_reached ();
684 gst_message_unref (message);
685 gst_object_unref (bus);
686 #ifndef DISABLE_FAULT_HANDLER
687 g_source_remove (timeout_id);
693 static GstBusSyncReply
694 bus_sync_handler (GstBus * bus, GstMessage * message, gpointer data)
696 GstElement *pipeline = (GstElement *) data;
698 switch (GST_MESSAGE_TYPE (message)) {
699 case GST_MESSAGE_STATE_CHANGED:
700 /* we only care about pipeline state change messages */
701 if (GST_MESSAGE_SRC (message) == GST_OBJECT_CAST (pipeline)) {
702 GstState old, new, pending;
703 gchar *state_transition_name;
705 gst_message_parse_state_changed (message, &old, &new, &pending);
707 state_transition_name = g_strdup_printf ("%s_%s",
708 gst_element_state_get_name (old), gst_element_state_get_name (new));
710 /* dump graph for (some) pipeline state changes */
712 gchar *dump_name = g_strconcat ("gst-launch.", state_transition_name,
714 GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS (GST_BIN (pipeline),
715 GST_DEBUG_GRAPH_SHOW_ALL, dump_name);
719 /* place a marker into e.g. strace logs */
721 gchar *access_name = g_strconcat (g_get_tmp_dir (), G_DIR_SEPARATOR_S,
722 "gst-launch", G_DIR_SEPARATOR_S, state_transition_name, NULL);
723 g_file_test (access_name, G_FILE_TEST_EXISTS);
724 g_free (access_name);
727 g_free (state_transition_name);
736 main (int argc, char *argv[])
739 gboolean verbose = FALSE;
740 gboolean no_fault = FALSE;
741 gboolean no_sigusr_handler = FALSE;
742 gboolean trace = FALSE;
743 gboolean eos_on_shutdown = FALSE;
744 gchar *savefile = NULL;
745 gchar *exclude_args = NULL;
746 #ifndef GST_DISABLE_OPTION_PARSING
747 GOptionEntry options[] = {
748 {"tags", 't', 0, G_OPTION_ARG_NONE, &tags,
749 N_("Output tags (also known as metadata)"), NULL},
750 {"verbose", 'v', 0, G_OPTION_ARG_NONE, &verbose,
751 N_("Output status information and property notifications"), NULL},
752 {"quiet", 'q', 0, G_OPTION_ARG_NONE, &quiet,
753 N_("Do not print any progress information"), NULL},
754 {"messages", 'm', 0, G_OPTION_ARG_NONE, &messages,
755 N_("Output messages"), NULL},
756 {"exclude", 'X', 0, G_OPTION_ARG_NONE, &exclude_args,
757 N_("Do not output status information of TYPE"), N_("TYPE1,TYPE2,...")},
758 #if !defined(GST_DISABLE_LOADSAVE) && !defined(GST_REMOVE_DEPRECATED)
759 {"output", 'o', 0, G_OPTION_ARG_STRING, &savefile,
760 N_("Save xml representation of pipeline to FILE and exit"), N_("FILE")},
762 {"no-fault", 'f', 0, G_OPTION_ARG_NONE, &no_fault,
763 N_("Do not install a fault handler"), NULL},
764 {"no-sigusr-handler", '\0', 0, G_OPTION_ARG_NONE, &no_sigusr_handler,
765 N_("Do not install signal handlers for SIGUSR1 and SIGUSR2"), NULL},
766 {"trace", 'T', 0, G_OPTION_ARG_NONE, &trace,
767 N_("Print alloc trace (if enabled at compile time)"), NULL},
768 {"eos-on-shutdown", 'e', 0, G_OPTION_ARG_NONE, &eos_on_shutdown,
769 N_("Force EOS on sources before shutting the pipeline down"), NULL},
770 GST_TOOLS_GOPTION_VERSION,
777 GError *error = NULL;
780 free (malloc (8)); /* -lefence */
783 bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
784 bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
785 textdomain (GETTEXT_PACKAGE);
788 g_thread_init (NULL);
790 gst_tools_set_prgname ("gst-launch");
792 #ifndef GST_DISABLE_OPTION_PARSING
793 ctx = g_option_context_new ("PIPELINE-DESCRIPTION");
794 g_option_context_add_main_entries (ctx, options, GETTEXT_PACKAGE);
795 g_option_context_add_group (ctx, gst_init_get_option_group ());
796 if (!g_option_context_parse (ctx, &argc, &argv, &err)) {
798 g_printerr ("Error initializing: %s\n", GST_STR_NULL (err->message));
800 g_printerr ("Error initializing: Unknown error!\n");
803 g_option_context_free (ctx);
805 gst_init (&argc, &argv);
808 gst_tools_print_version ("gst-launch");
810 #ifndef DISABLE_FAULT_HANDLER
816 if (!no_sigusr_handler)
817 play_signal_setup ();
821 if (!gst_alloc_trace_available ()) {
822 g_warning ("Trace not available (recompile with trace enabled).");
824 gst_alloc_trace_set_flags_all (GST_ALLOC_TRACE_LIVE |
825 GST_ALLOC_TRACE_MEM_LIVE);
826 gst_alloc_trace_print_live ();
829 /* make a null-terminated version of argv */
830 argvn = g_new0 (char *, argc);
831 memcpy (argvn, argv + 1, sizeof (char *) * (argc - 1));
832 #if !defined(GST_DISABLE_LOADSAVE) && !defined(GST_REMOVE_DEPRECATED)
833 if (strstr (argv[0], "gst-xmllaunch")) {
834 /* FIXME 0.11: remove xmllaunch entirely */
835 g_warning ("gst-xmllaunch is deprecated and broken for all but the most "
836 "simple pipelines. It will most likely be removed in future. Don't "
838 pipeline = xmllaunch_parse_cmdline ((const gchar **) argvn);
843 (GstElement *) gst_parse_launchv ((const gchar **) argvn, &error);
849 g_printerr (_("ERROR: pipeline could not be constructed: %s.\n"),
850 GST_STR_NULL (error->message));
851 g_error_free (error);
853 g_printerr (_("ERROR: pipeline could not be constructed.\n"));
857 g_printerr (_("WARNING: erroneous pipeline: %s\n"),
858 GST_STR_NULL (error->message));
859 g_error_free (error);
864 gchar **exclude_list =
865 exclude_args ? g_strsplit (exclude_args, ",", 0) : NULL;
866 g_signal_connect (pipeline, "deep-notify",
867 G_CALLBACK (gst_object_default_deep_notify), exclude_list);
869 #if !defined(GST_DISABLE_LOADSAVE) && !defined(GST_REMOVE_DEPRECATED)
871 g_warning ("Pipeline serialization to XML is deprecated and broken for "
872 "all but the most simple pipelines. It will most likely be removed "
873 "in future. Don't use it.\n");
875 gst_xml_write_file (GST_ELEMENT (pipeline), fopen (savefile, "w"));
880 GstState state, pending;
881 GstStateChangeReturn ret;
884 /* If the top-level object is not a pipeline, place it in a pipeline. */
885 if (!GST_IS_PIPELINE (pipeline)) {
886 GstElement *real_pipeline = gst_element_factory_make ("pipeline", NULL);
888 if (real_pipeline == NULL) {
889 g_printerr (_("ERROR: the 'pipeline' element wasn't found.\n"));
892 gst_bin_add (GST_BIN (real_pipeline), pipeline);
893 pipeline = real_pipeline;
896 bus = gst_element_get_bus (pipeline);
897 gst_bus_set_sync_handler (bus, bus_sync_handler, (gpointer) pipeline);
898 gst_object_unref (bus);
900 PRINT (_("Setting pipeline to PAUSED ...\n"));
901 ret = gst_element_set_state (pipeline, GST_STATE_PAUSED);
904 case GST_STATE_CHANGE_FAILURE:
905 g_printerr (_("ERROR: Pipeline doesn't want to pause.\n"));
907 event_loop (pipeline, FALSE, GST_STATE_VOID_PENDING);
909 case GST_STATE_CHANGE_NO_PREROLL:
910 PRINT (_("Pipeline is live and does not need PREROLL ...\n"));
913 case GST_STATE_CHANGE_ASYNC:
914 PRINT (_("Pipeline is PREROLLING ...\n"));
915 caught_error = event_loop (pipeline, TRUE, GST_STATE_PAUSED);
917 g_printerr (_("ERROR: pipeline doesn't want to preroll.\n"));
920 state = GST_STATE_PAUSED;
922 case GST_STATE_CHANGE_SUCCESS:
923 PRINT (_("Pipeline is PREROLLED ...\n"));
927 caught_error = event_loop (pipeline, FALSE, GST_STATE_PLAYING);
930 g_printerr (_("ERROR: pipeline doesn't want to preroll.\n"));
932 GstClockTime tfthen, tfnow;
933 GstClockTimeDiff diff;
935 PRINT (_("Setting pipeline to PLAYING ...\n"));
937 if (gst_element_set_state (pipeline,
938 GST_STATE_PLAYING) == GST_STATE_CHANGE_FAILURE) {
942 g_printerr (_("ERROR: pipeline doesn't want to play.\n"));
943 bus = gst_element_get_bus (pipeline);
944 if ((err_msg = gst_bus_poll (bus, GST_MESSAGE_ERROR, 0))) {
945 print_error_message (err_msg);
946 gst_message_unref (err_msg);
948 gst_object_unref (bus);
953 tfthen = gst_util_get_timestamp ();
954 caught_error = event_loop (pipeline, TRUE, GST_STATE_PLAYING);
955 if (eos_on_shutdown && caught_error == ELR_INTERRUPT) {
956 PRINT (_("EOS on shutdown enabled -- Forcing EOS on the pipeline\n"));
958 gst_element_send_event (pipeline, gst_event_new_eos ());
959 PRINT (_("Waiting for EOS...\n"));
960 caught_error = event_loop (pipeline, TRUE, GST_STATE_PLAYING);
962 if (caught_error == ELR_NO_ERROR) {
964 PRINT (_("EOS received - stopping pipeline...\n"));
965 } else if (caught_error == ELR_ERROR) {
966 PRINT (_("An error happened while waiting for EOS\n"));
969 tfnow = gst_util_get_timestamp ();
971 diff = GST_CLOCK_DIFF (tfthen, tfnow);
973 PRINT (_("Execution ended after %" G_GUINT64_FORMAT " ns.\n"), diff);
976 PRINT (_("Setting pipeline to PAUSED ...\n"));
977 gst_element_set_state (pipeline, GST_STATE_PAUSED);
978 if (caught_error == ELR_NO_ERROR)
979 gst_element_get_state (pipeline, &state, &pending, GST_CLOCK_TIME_NONE);
981 /* iterate mainloop to process pending stuff */
982 while (g_main_context_iteration (NULL, FALSE));
984 PRINT (_("Setting pipeline to READY ...\n"));
985 gst_element_set_state (pipeline, GST_STATE_READY);
986 gst_element_get_state (pipeline, &state, &pending, GST_CLOCK_TIME_NONE);
989 PRINT (_("Setting pipeline to NULL ...\n"));
990 gst_element_set_state (pipeline, GST_STATE_NULL);
991 gst_element_get_state (pipeline, &state, &pending, GST_CLOCK_TIME_NONE);
994 PRINT (_("Freeing pipeline ...\n"));
995 gst_object_unref (pipeline);
999 gst_alloc_trace_print_live ();