/* GStreamer * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu> * 2000 Wim Taymans <wtay@chello.be> * 2004 Thomas Vander Stichele <thomas@apestaart.org> * * gst-launch.c: tool to launch GStreamer pipelines from the command line * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include <glib.h> #include <stdio.h> #include <string.h> #include <signal.h> #ifdef HAVE_UNISTD_H #include <unistd.h> #endif #ifdef G_OS_UNIX #include <glib-unix.h> #include <sys/wait.h> #elif defined (G_OS_WIN32) #define WIN32_LEAN_AND_MEAN #include <windows.h> #endif #include <locale.h> /* for LC_ALL */ #include "tools.h" extern volatile gboolean glib_on_error_halt; #ifdef G_OS_UNIX static void fault_restore (void); static void fault_spin (void); #endif /* event_loop return codes */ typedef enum _EventLoopResult { ELR_NO_ERROR = 0, ELR_ERROR, ELR_INTERRUPT } EventLoopResult; static GstElement *pipeline; static EventLoopResult caught_error = ELR_NO_ERROR; static gboolean quiet = FALSE; static gboolean tags = FALSE; static gboolean toc = FALSE; static gboolean messages = FALSE; static gboolean is_live = FALSE; static gboolean waiting_eos = FALSE; /* convenience macro so we don't have to litter the code with if(!quiet) */ #define PRINT if(!quiet)g_print #ifdef G_OS_UNIX static void fault_handler_sighandler (int signum) { fault_restore (); /* printf is used instead of g_print(), since it's less likely to * deadlock */ switch (signum) { case SIGSEGV: fprintf (stderr, "Caught SIGSEGV\n"); break; case SIGQUIT: if (!quiet) printf ("Caught SIGQUIT\n"); break; default: fprintf (stderr, "signo: %d\n", signum); break; } fault_spin (); } static void fault_spin (void) { int spinning = TRUE; glib_on_error_halt = FALSE; g_on_error_stack_trace ("gst-launch-" GST_API_VERSION); wait (NULL); /* FIXME how do we know if we were run by libtool? */ fprintf (stderr, "Spinning. Please run 'gdb gst-launch-" GST_API_VERSION " %d' to " "continue debugging, Ctrl-C to quit, or Ctrl-\\ to dump core.\n", (gint) getpid ()); while (spinning) g_usleep (1000000); } static void fault_restore (void) { struct sigaction action; memset (&action, 0, sizeof (action)); action.sa_handler = SIG_DFL; sigaction (SIGSEGV, &action, NULL); sigaction (SIGQUIT, &action, NULL); } static void fault_setup (void) { struct sigaction action; memset (&action, 0, sizeof (action)); action.sa_handler = fault_handler_sighandler; sigaction (SIGSEGV, &action, NULL); sigaction (SIGQUIT, &action, NULL); } #endif /* G_OS_UNIX */ #if 0 typedef struct _GstIndexStats { gint id; gchar *desc; guint num_frames; guint num_keyframes; guint num_dltframes; GstClockTime last_keyframe; GstClockTime last_dltframe; GstClockTime min_keyframe_gap; GstClockTime max_keyframe_gap; GstClockTime avg_keyframe_gap; } GstIndexStats; static void entry_added (GstIndex * index, GstIndexEntry * entry, gpointer user_data) { GPtrArray *index_stats = (GPtrArray *) user_data; GstIndexStats *s; switch (entry->type) { case GST_INDEX_ENTRY_ID: /* we have a new writer */ GST_DEBUG_OBJECT (index, "id %d: describes writer %s", entry->id, GST_INDEX_ID_DESCRIPTION (entry)); if (entry->id >= index_stats->len) { g_ptr_array_set_size (index_stats, entry->id + 1); } s = g_new (GstIndexStats, 1); s->id = entry->id; s->desc = g_strdup (GST_INDEX_ID_DESCRIPTION (entry)); s->num_frames = s->num_keyframes = s->num_dltframes = 0; s->last_keyframe = s->last_dltframe = GST_CLOCK_TIME_NONE; s->min_keyframe_gap = s->max_keyframe_gap = s->avg_keyframe_gap = GST_CLOCK_TIME_NONE; g_ptr_array_index (index_stats, entry->id) = s; break; case GST_INDEX_ENTRY_FORMAT: /* have not found any code calling this */ GST_DEBUG_OBJECT (index, "id %d: registered format %d for %s\n", entry->id, GST_INDEX_FORMAT_FORMAT (entry), GST_INDEX_FORMAT_KEY (entry)); break; case GST_INDEX_ENTRY_ASSOCIATION: { gint64 ts; GstAssocFlags flags = GST_INDEX_ASSOC_FLAGS (entry); s = g_ptr_array_index (index_stats, entry->id); gst_index_entry_assoc_map (entry, GST_FORMAT_TIME, &ts); if (flags & GST_ASSOCIATION_FLAG_KEY_UNIT) { s->num_keyframes++; if (GST_CLOCK_TIME_IS_VALID (ts)) { if (GST_CLOCK_TIME_IS_VALID (s->last_keyframe)) { GstClockTimeDiff d = GST_CLOCK_DIFF (s->last_keyframe, ts); if (G_UNLIKELY (d < 0)) { GST_WARNING ("received out-of-order keyframe at %" GST_TIME_FORMAT, GST_TIME_ARGS (ts)); /* FIXME: does it still make sense to use that for the statistics */ d = GST_CLOCK_DIFF (ts, s->last_keyframe); } if (GST_CLOCK_TIME_IS_VALID (s->min_keyframe_gap)) { if (d < s->min_keyframe_gap) s->min_keyframe_gap = d; } else { s->min_keyframe_gap = d; } if (GST_CLOCK_TIME_IS_VALID (s->max_keyframe_gap)) { if (d > s->max_keyframe_gap) s->max_keyframe_gap = d; } else { s->max_keyframe_gap = d; } if (GST_CLOCK_TIME_IS_VALID (s->avg_keyframe_gap)) { s->avg_keyframe_gap = (d + s->num_frames * s->avg_keyframe_gap) / (s->num_frames + 1); } else { s->avg_keyframe_gap = d; } } s->last_keyframe = ts; } } if (flags & GST_ASSOCIATION_FLAG_DELTA_UNIT) { s->num_dltframes++; if (GST_CLOCK_TIME_IS_VALID (ts)) { s->last_dltframe = ts; } } s->num_frames++; break; } default: break; } } /* print statistics from the entry_added callback, free the entries */ static void print_index_stats (GPtrArray * index_stats) { gint i; if (index_stats->len) { g_print ("%s:\n", _("Index statistics")); } for (i = 0; i < index_stats->len; i++) { GstIndexStats *s = g_ptr_array_index (index_stats, i); if (s) { g_print ("id %d, %s\n", s->id, s->desc); if (s->num_frames) { GstClockTime last_frame = s->last_keyframe; if (GST_CLOCK_TIME_IS_VALID (s->last_dltframe)) { if (!GST_CLOCK_TIME_IS_VALID (last_frame) || (s->last_dltframe > last_frame)) last_frame = s->last_dltframe; } if (GST_CLOCK_TIME_IS_VALID (last_frame)) { g_print (" total time = %" GST_TIME_FORMAT "\n", GST_TIME_ARGS (last_frame)); } g_print (" frame/keyframe rate = %u / %u = ", s->num_frames, s->num_keyframes); if (s->num_keyframes) g_print ("%lf\n", s->num_frames / (gdouble) s->num_keyframes); else g_print ("-\n"); if (s->num_keyframes) { g_print (" min/avg/max keyframe gap = %" GST_TIME_FORMAT ", %" GST_TIME_FORMAT ", %" GST_TIME_FORMAT "\n", GST_TIME_ARGS (s->min_keyframe_gap), GST_TIME_ARGS (s->avg_keyframe_gap), GST_TIME_ARGS (s->max_keyframe_gap)); } } else { g_print (" no stats\n"); } g_free (s->desc); g_free (s); } } } #endif /* Kids, use the functions from libgstpbutils in gst-plugins-base in your * own code (we can't do that here because it would introduce a circular * dependency) */ static gboolean gst_is_missing_plugin_message (GstMessage * msg) { if (GST_MESSAGE_TYPE (msg) != GST_MESSAGE_ELEMENT || gst_message_get_structure (msg) == NULL) return FALSE; return gst_structure_has_name (gst_message_get_structure (msg), "missing-plugin"); } static const gchar * gst_missing_plugin_message_get_description (GstMessage * msg) { return gst_structure_get_string (gst_message_get_structure (msg), "name"); } static void print_error_message (GstMessage * msg) { GError *err = NULL; gchar *name, *debug = NULL; name = gst_object_get_path_string (msg->src); gst_message_parse_error (msg, &err, &debug); g_printerr (_("ERROR: from element %s: %s\n"), name, err->message); if (debug != NULL) g_printerr (_("Additional debug info:\n%s\n"), debug); g_clear_error (&err); g_free (debug); g_free (name); } static void print_tag (const GstTagList * list, const gchar * tag, gpointer unused) { gint i, count; count = gst_tag_list_get_tag_size (list, tag); for (i = 0; i < count; i++) { gchar *str = NULL; if (gst_tag_get_type (tag) == G_TYPE_STRING) { if (!gst_tag_list_get_string_index (list, tag, i, &str)) { g_warning ("Couldn't fetch string for %s tag", tag); g_assert_not_reached (); } } else if (gst_tag_get_type (tag) == GST_TYPE_SAMPLE) { GstSample *sample = NULL; if (gst_tag_list_get_sample_index (list, tag, i, &sample)) { GstBuffer *img = gst_sample_get_buffer (sample); GstCaps *caps = gst_sample_get_caps (sample); if (img) { if (caps) { gchar *caps_str; caps_str = gst_caps_to_string (caps); str = g_strdup_printf ("buffer of %" G_GSIZE_FORMAT " bytes, " "type: %s", gst_buffer_get_size (img), caps_str); g_free (caps_str); } else { str = g_strdup_printf ("buffer of %" G_GSIZE_FORMAT " bytes", gst_buffer_get_size (img)); } } else { str = g_strdup ("NULL buffer"); } } else { g_warning ("Couldn't fetch sample for %s tag", tag); g_assert_not_reached (); } gst_sample_unref (sample); } else if (gst_tag_get_type (tag) == GST_TYPE_DATE_TIME) { GstDateTime *dt = NULL; gst_tag_list_get_date_time_index (list, tag, i, &dt); if (!gst_date_time_has_time (dt)) { str = gst_date_time_to_iso8601_string (dt); } else { gdouble tz_offset = gst_date_time_get_time_zone_offset (dt); gchar tz_str[32]; if (tz_offset != 0.0) { g_snprintf (tz_str, sizeof (tz_str), "(UTC %s%gh)", (tz_offset > 0.0) ? "+" : "", tz_offset); } else { g_snprintf (tz_str, sizeof (tz_str), "(UTC)"); } str = g_strdup_printf ("%04u-%02u-%02u %02u:%02u:%02u %s", gst_date_time_get_year (dt), gst_date_time_get_month (dt), gst_date_time_get_day (dt), gst_date_time_get_hour (dt), gst_date_time_get_minute (dt), gst_date_time_get_second (dt), tz_str); } gst_date_time_unref (dt); } else { str = g_strdup_value_contents (gst_tag_list_get_value_index (list, tag, i)); } if (str) { PRINT ("%16s: %s\n", i == 0 ? gst_tag_get_nick (tag) : "", str); g_free (str); } } } static void print_tag_foreach (const GstTagList * tags, const gchar * tag, gpointer user_data) { GValue val = { 0, }; gchar *str; gint depth = GPOINTER_TO_INT (user_data); if (!gst_tag_list_copy_value (&val, tags, tag)) return; if (G_VALUE_HOLDS_STRING (&val)) str = g_value_dup_string (&val); else str = gst_value_serialize (&val); g_print ("%*s%s: %s\n", 2 * depth, " ", gst_tag_get_nick (tag), str); g_free (str); g_value_unset (&val); } #define MAX_INDENT 40 static void print_toc_entry (gpointer data, gpointer user_data) { GstTocEntry *entry = (GstTocEntry *) data; const gchar spc[MAX_INDENT + 1] = " "; guint indent = MIN (GPOINTER_TO_UINT (user_data), MAX_INDENT); const GstTagList *tags; GList *subentries; gint64 start, stop; gst_toc_entry_get_start_stop_times (entry, &start, &stop); PRINT ("%s%s:", &spc[MAX_INDENT - indent], gst_toc_entry_type_get_nick (gst_toc_entry_get_entry_type (entry))); if (GST_CLOCK_TIME_IS_VALID (start)) { PRINT (" start: %" GST_TIME_FORMAT, GST_TIME_ARGS (start)); } if (GST_CLOCK_TIME_IS_VALID (stop)) { PRINT (" stop: %" GST_TIME_FORMAT, GST_TIME_ARGS (stop)); } PRINT ("\n"); indent += 2; /* print tags */ tags = gst_toc_entry_get_tags (entry); if (tags) gst_tag_list_foreach (tags, print_tag_foreach, GUINT_TO_POINTER (indent)); /* loop over sub-toc entries */ subentries = gst_toc_entry_get_sub_entries (entry); g_list_foreach (subentries, print_toc_entry, GUINT_TO_POINTER (indent)); } #if defined(G_OS_UNIX) || defined(G_OS_WIN32) static guint signal_watch_id; #if defined(G_OS_WIN32) static GstElement *intr_pipeline; #endif #endif #if defined(G_OS_UNIX) || defined(G_OS_WIN32) /* As the interrupt handler is dispatched from GMainContext as a GSourceFunc * handler, we can react to this by posting a message. */ static gboolean intr_handler (gpointer user_data) { GstElement *pipeline = (GstElement *) user_data; PRINT ("handling interrupt.\n"); /* post an application specific message */ gst_element_post_message (GST_ELEMENT (pipeline), gst_message_new_application (GST_OBJECT (pipeline), gst_structure_new ("GstLaunchInterrupt", "message", G_TYPE_STRING, "Pipeline interrupted", NULL))); /* remove signal handler */ signal_watch_id = 0; return FALSE; } #if defined(G_OS_WIN32) /* G_OS_UNIX */ static BOOL WINAPI w32_intr_handler (DWORD dwCtrlType) { intr_handler ((gpointer) intr_pipeline); intr_pipeline = NULL; return TRUE; } #endif /* G_OS_WIN32 */ #endif /* G_OS_UNIX */ /* returns ELR_ERROR if there was an error * or ELR_INTERRUPT if we caught a keyboard interrupt * or ELR_NO_ERROR otherwise. */ static EventLoopResult event_loop (GstElement * pipeline, gboolean blocking, gboolean do_progress, GstState target_state) { GstBus *bus; GstMessage *message = NULL; EventLoopResult res = ELR_NO_ERROR; gboolean buffering = FALSE, in_progress = FALSE; gboolean prerolled = target_state != GST_STATE_PAUSED; bus = gst_element_get_bus (GST_ELEMENT (pipeline)); #ifdef G_OS_UNIX signal_watch_id = g_unix_signal_add (SIGINT, (GSourceFunc) intr_handler, pipeline); #elif defined(G_OS_WIN32) intr_pipeline = NULL; if (SetConsoleCtrlHandler (w32_intr_handler, TRUE)) intr_pipeline = pipeline; #endif while (TRUE) { message = gst_bus_poll (bus, GST_MESSAGE_ANY, blocking ? -1 : 0); /* if the poll timed out, only when !blocking */ if (message == NULL) goto exit; /* check if we need to dump messages to the console */ if (messages) { GstObject *src_obj; const GstStructure *s; guint32 seqnum; seqnum = gst_message_get_seqnum (message); s = gst_message_get_structure (message); src_obj = GST_MESSAGE_SRC (message); if (GST_IS_ELEMENT (src_obj)) { PRINT (_("Got message #%u from element \"%s\" (%s): "), (guint) seqnum, GST_ELEMENT_NAME (src_obj), GST_MESSAGE_TYPE_NAME (message)); } else if (GST_IS_PAD (src_obj)) { PRINT (_("Got message #%u from pad \"%s:%s\" (%s): "), (guint) seqnum, GST_DEBUG_PAD_NAME (src_obj), GST_MESSAGE_TYPE_NAME (message)); } else if (GST_IS_OBJECT (src_obj)) { PRINT (_("Got message #%u from object \"%s\" (%s): "), (guint) seqnum, GST_OBJECT_NAME (src_obj), GST_MESSAGE_TYPE_NAME (message)); } else { PRINT (_("Got message #%u (%s): "), (guint) seqnum, GST_MESSAGE_TYPE_NAME (message)); } if (s) { gchar *sstr; sstr = gst_structure_to_string (s); PRINT ("%s\n", sstr); g_free (sstr); } else { PRINT ("no message details\n"); } } switch (GST_MESSAGE_TYPE (message)) { case GST_MESSAGE_NEW_CLOCK: { GstClock *clock; gst_message_parse_new_clock (message, &clock); PRINT ("New clock: %s\n", (clock ? GST_OBJECT_NAME (clock) : "NULL")); break; } case GST_MESSAGE_CLOCK_LOST: PRINT ("Clock lost, selecting a new one\n"); gst_element_set_state (pipeline, GST_STATE_PAUSED); gst_element_set_state (pipeline, GST_STATE_PLAYING); break; case GST_MESSAGE_EOS:{ waiting_eos = FALSE; PRINT (_("Got EOS from element \"%s\".\n"), GST_MESSAGE_SRC_NAME (message)); goto exit; } case GST_MESSAGE_TAG: if (tags) { GstTagList *tag_list; if (GST_IS_ELEMENT (GST_MESSAGE_SRC (message))) { PRINT (_("FOUND TAG : found by element \"%s\".\n"), GST_MESSAGE_SRC_NAME (message)); } else if (GST_IS_PAD (GST_MESSAGE_SRC (message))) { PRINT (_("FOUND TAG : found by pad \"%s:%s\".\n"), GST_DEBUG_PAD_NAME (GST_MESSAGE_SRC (message))); } else if (GST_IS_OBJECT (GST_MESSAGE_SRC (message))) { PRINT (_("FOUND TAG : found by object \"%s\".\n"), GST_MESSAGE_SRC_NAME (message)); } else { PRINT (_("FOUND TAG\n")); } gst_message_parse_tag (message, &tag_list); gst_tag_list_foreach (tag_list, print_tag, NULL); gst_tag_list_unref (tag_list); } break; case GST_MESSAGE_TOC: if (toc) { GstToc *toc; GList *entries; gboolean updated; if (GST_IS_ELEMENT (GST_MESSAGE_SRC (message))) { PRINT (_("FOUND TOC : found by element \"%s\".\n"), GST_MESSAGE_SRC_NAME (message)); } else if (GST_IS_OBJECT (GST_MESSAGE_SRC (message))) { PRINT (_("FOUND TOC : found by object \"%s\".\n"), GST_MESSAGE_SRC_NAME (message)); } else { PRINT (_("FOUND TOC\n")); } gst_message_parse_toc (message, &toc, &updated); /* recursively loop over toc entries */ entries = gst_toc_get_entries (toc); g_list_foreach (entries, print_toc_entry, GUINT_TO_POINTER (0)); gst_toc_unref (toc); } break; case GST_MESSAGE_INFO:{ GError *gerror; gchar *debug; gchar *name = gst_object_get_path_string (GST_MESSAGE_SRC (message)); gst_message_parse_info (message, &gerror, &debug); if (debug) { PRINT (_("INFO:\n%s\n"), debug); } g_clear_error (&gerror); g_free (debug); g_free (name); break; } case GST_MESSAGE_WARNING:{ GError *gerror; gchar *debug; gchar *name = gst_object_get_path_string (GST_MESSAGE_SRC (message)); /* dump graph on warning */ GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS (GST_BIN (pipeline), GST_DEBUG_GRAPH_SHOW_ALL, "gst-launch.warning"); gst_message_parse_warning (message, &gerror, &debug); PRINT (_("WARNING: from element %s: %s\n"), name, gerror->message); if (debug) { PRINT (_("Additional debug info:\n%s\n"), debug); } g_clear_error (&gerror); g_free (debug); g_free (name); break; } case GST_MESSAGE_ERROR:{ /* dump graph on error */ GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS (GST_BIN (pipeline), GST_DEBUG_GRAPH_SHOW_ALL, "gst-launch.error"); print_error_message (message); /* we have an error */ res = ELR_ERROR; goto exit; } case GST_MESSAGE_STATE_CHANGED:{ GstState old, new, pending; /* we only care about pipeline state change messages */ if (GST_MESSAGE_SRC (message) != GST_OBJECT_CAST (pipeline)) break; gst_message_parse_state_changed (message, &old, &new, &pending); /* if we reached the final target state, exit */ if (target_state == GST_STATE_PAUSED && new == target_state) { prerolled = TRUE; /* ignore when we are buffering since then we mess with the states * ourselves. */ if (buffering) { PRINT (_("Prerolled, waiting for buffering to finish...\n")); break; } if (in_progress) { PRINT (_("Prerolled, waiting for progress to finish...\n")); break; } goto exit; } /* else not an interesting message */ break; } case GST_MESSAGE_BUFFERING:{ gint percent; gst_message_parse_buffering (message, &percent); PRINT ("%s %d%% \r", _("buffering..."), percent); /* no state management needed for live pipelines */ if (is_live) break; if (percent == 100) { /* a 100% message means buffering is done */ buffering = FALSE; /* if the desired state is playing, go back */ if (target_state == GST_STATE_PLAYING) { PRINT (_("Done buffering, setting pipeline to PLAYING ...\n")); gst_element_set_state (pipeline, GST_STATE_PLAYING); } else if (prerolled && !in_progress) goto exit; } else { /* buffering busy */ if (!buffering && target_state == GST_STATE_PLAYING) { /* we were not buffering but PLAYING, PAUSE the pipeline. */ PRINT (_("Buffering, setting pipeline to PAUSED ...\n")); gst_element_set_state (pipeline, GST_STATE_PAUSED); } buffering = TRUE; } break; } case GST_MESSAGE_LATENCY: { PRINT (_("Redistribute latency...\n")); gst_bin_recalculate_latency (GST_BIN (pipeline)); break; } case GST_MESSAGE_REQUEST_STATE: { GstState state; gchar *name = gst_object_get_path_string (GST_MESSAGE_SRC (message)); gst_message_parse_request_state (message, &state); PRINT (_("Setting state to %s as requested by %s...\n"), gst_element_state_get_name (state), name); gst_element_set_state (pipeline, state); g_free (name); break; } case GST_MESSAGE_APPLICATION:{ const GstStructure *s; s = gst_message_get_structure (message); if (gst_structure_has_name (s, "GstLaunchInterrupt")) { /* this application message is posted when we caught an interrupt and * we need to stop the pipeline. */ PRINT (_("Interrupt: Stopping pipeline ...\n")); res = ELR_INTERRUPT; goto exit; } break; } case GST_MESSAGE_PROGRESS: { GstProgressType type; gchar *code, *text; gst_message_parse_progress (message, &type, &code, &text); switch (type) { case GST_PROGRESS_TYPE_START: case GST_PROGRESS_TYPE_CONTINUE: if (do_progress) { in_progress = TRUE; blocking = TRUE; } break; case GST_PROGRESS_TYPE_COMPLETE: case GST_PROGRESS_TYPE_CANCELED: case GST_PROGRESS_TYPE_ERROR: in_progress = FALSE; break; default: break; } PRINT (_("Progress: (%s) %s\n"), code, text); g_free (code); g_free (text); if (do_progress && !in_progress && !buffering && prerolled) goto exit; break; } case GST_MESSAGE_ELEMENT:{ if (gst_is_missing_plugin_message (message)) { const gchar *desc; desc = gst_missing_plugin_message_get_description (message); PRINT (_("Missing element: %s\n"), desc ? desc : "(no description)"); } break; } case GST_MESSAGE_HAVE_CONTEXT:{ GstContext *context; const gchar *context_type; gchar *context_str; gst_message_parse_have_context (message, &context); context_type = gst_context_get_context_type (context); context_str = gst_structure_to_string (gst_context_get_structure (context)); PRINT (_("Got context from element '%s': %s=%s\n"), GST_ELEMENT_NAME (GST_MESSAGE_SRC (message)), context_type, context_str); g_free (context_str); gst_context_unref (context); break; } default: /* just be quiet by default */ break; } if (message) gst_message_unref (message); } g_assert_not_reached (); exit: { if (message) gst_message_unref (message); gst_object_unref (bus); #ifdef G_OS_UNIX if (signal_watch_id > 0) g_source_remove (signal_watch_id); #elif defined(G_OS_WIN32) intr_pipeline = NULL; SetConsoleCtrlHandler (w32_intr_handler, FALSE); #endif return res; } } static GstBusSyncReply bus_sync_handler (GstBus * bus, GstMessage * message, gpointer data) { GstElement *pipeline = (GstElement *) data; switch (GST_MESSAGE_TYPE (message)) { case GST_MESSAGE_STATE_CHANGED: /* we only care about pipeline state change messages */ if (GST_MESSAGE_SRC (message) == GST_OBJECT_CAST (pipeline)) { GstState old, new, pending; gchar *state_transition_name; gst_message_parse_state_changed (message, &old, &new, &pending); state_transition_name = g_strdup_printf ("%s_%s", gst_element_state_get_name (old), gst_element_state_get_name (new)); /* dump graph for (some) pipeline state changes */ { gchar *dump_name = g_strconcat ("gst-launch.", state_transition_name, NULL); GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS (GST_BIN (pipeline), GST_DEBUG_GRAPH_SHOW_ALL, dump_name); g_free (dump_name); } /* place a marker into e.g. strace logs */ { gchar *access_name = g_strconcat (g_get_tmp_dir (), G_DIR_SEPARATOR_S, "gst-launch", G_DIR_SEPARATOR_S, state_transition_name, NULL); g_file_test (access_name, G_FILE_TEST_EXISTS); g_free (access_name); } g_free (state_transition_name); } break; default: break; } return GST_BUS_PASS; } int main (int argc, char *argv[]) { /* options */ gboolean verbose = FALSE; gboolean no_fault = FALSE; gboolean eos_on_shutdown = FALSE; #if 0 gboolean check_index = FALSE; #endif gchar *savefile = NULL; gchar **exclude_args = NULL; #ifndef GST_DISABLE_OPTION_PARSING GOptionEntry options[] = { {"tags", 't', 0, G_OPTION_ARG_NONE, &tags, N_("Output tags (also known as metadata)"), NULL}, {"toc", 'c', 0, G_OPTION_ARG_NONE, &toc, N_("Output TOC (chapters and editions)"), NULL}, {"verbose", 'v', 0, G_OPTION_ARG_NONE, &verbose, N_("Output status information and property notifications"), NULL}, {"quiet", 'q', 0, G_OPTION_ARG_NONE, &quiet, N_("Do not print any progress information"), NULL}, {"messages", 'm', 0, G_OPTION_ARG_NONE, &messages, N_("Output messages"), NULL}, {"exclude", 'X', 0, G_OPTION_ARG_STRING_ARRAY, &exclude_args, N_("Do not output status information for the specified property " "if verbose output is enabled (can be used multiple times)"), N_("PROPERTY-NAME")}, {"no-fault", 'f', 0, G_OPTION_ARG_NONE, &no_fault, N_("Do not install a fault handler"), NULL}, {"eos-on-shutdown", 'e', 0, G_OPTION_ARG_NONE, &eos_on_shutdown, N_("Force EOS on sources before shutting the pipeline down"), NULL}, #if 0 {"index", 'i', 0, G_OPTION_ARG_NONE, &check_index, N_("Gather and print index statistics"), NULL}, #endif GST_TOOLS_GOPTION_VERSION, {NULL} }; GOptionContext *ctx; GError *err = NULL; #endif #if 0 GstIndex *index; GPtrArray *index_stats = NULL; #endif gchar **argvn; GError *error = NULL; gulong deep_notify_id = 0; gint res = 0; free (malloc (8)); /* -lefence */ setlocale (LC_ALL, ""); #ifdef ENABLE_NLS bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR); bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8"); textdomain (GETTEXT_PACKAGE); #endif g_set_prgname ("gst-launch-" GST_API_VERSION); #ifndef GST_DISABLE_OPTION_PARSING ctx = g_option_context_new ("PIPELINE-DESCRIPTION"); g_option_context_add_main_entries (ctx, options, GETTEXT_PACKAGE); g_option_context_add_group (ctx, gst_init_get_option_group ()); if (!g_option_context_parse (ctx, &argc, &argv, &err)) { if (err) g_printerr ("Error initializing: %s\n", GST_STR_NULL (err->message)); else g_printerr ("Error initializing: Unknown error!\n"); g_clear_error (&error); g_option_context_free (ctx); exit (1); } g_option_context_free (ctx); #else gst_init (&argc, &argv); #endif gst_tools_print_version (); #ifdef G_OS_UNIX if (!no_fault) fault_setup (); #endif /* make a null-terminated version of argv */ argvn = g_new0 (char *, argc); memcpy (argvn, argv + 1, sizeof (char *) * (argc - 1)); { pipeline = (GstElement *) gst_parse_launchv ((const gchar **) argvn, &error); } g_free (argvn); if (!pipeline) { if (error) { g_printerr (_("ERROR: pipeline could not be constructed: %s.\n"), GST_STR_NULL (error->message)); g_clear_error (&error); } else { g_printerr (_("ERROR: pipeline could not be constructed.\n")); } return 1; } else if (error) { g_printerr (_("WARNING: erroneous pipeline: %s\n"), GST_STR_NULL (error->message)); g_clear_error (&error); return 1; } if (!savefile) { GstState state, pending; GstStateChangeReturn ret; GstBus *bus; /* If the top-level object is not a pipeline, place it in a pipeline. */ if (!GST_IS_PIPELINE (pipeline)) { GstElement *real_pipeline = gst_element_factory_make ("pipeline", NULL); if (real_pipeline == NULL) { g_printerr (_("ERROR: the 'pipeline' element wasn't found.\n")); return 1; } gst_bin_add (GST_BIN (real_pipeline), pipeline); pipeline = real_pipeline; } if (verbose) { deep_notify_id = g_signal_connect (pipeline, "deep-notify", G_CALLBACK (gst_object_default_deep_notify), exclude_args); } #if 0 if (check_index) { /* gst_index_new() creates a null-index, it does not store anything, but * the entry-added signal works and this is what we use to build the * statistics */ index = gst_index_new (); if (index) { index_stats = g_ptr_array_new (); g_signal_connect (G_OBJECT (index), "entry-added", G_CALLBACK (entry_added), index_stats); g_object_set (G_OBJECT (index), "resolver", GST_INDEX_RESOLVER_GTYPE, NULL); gst_element_set_index (pipeline, index); } } #endif bus = gst_element_get_bus (pipeline); gst_bus_set_sync_handler (bus, bus_sync_handler, (gpointer) pipeline, NULL); gst_object_unref (bus); PRINT (_("Setting pipeline to PAUSED ...\n")); ret = gst_element_set_state (pipeline, GST_STATE_PAUSED); switch (ret) { case GST_STATE_CHANGE_FAILURE: g_printerr (_("ERROR: Pipeline doesn't want to pause.\n")); res = -1; event_loop (pipeline, FALSE, FALSE, GST_STATE_VOID_PENDING); goto end; case GST_STATE_CHANGE_NO_PREROLL: PRINT (_("Pipeline is live and does not need PREROLL ...\n")); is_live = TRUE; break; case GST_STATE_CHANGE_ASYNC: PRINT (_("Pipeline is PREROLLING ...\n")); caught_error = event_loop (pipeline, TRUE, TRUE, GST_STATE_PAUSED); if (caught_error) { g_printerr (_("ERROR: pipeline doesn't want to preroll.\n")); res = caught_error; goto end; } state = GST_STATE_PAUSED; /* fallthrough */ case GST_STATE_CHANGE_SUCCESS: PRINT (_("Pipeline is PREROLLED ...\n")); break; } caught_error = event_loop (pipeline, FALSE, TRUE, GST_STATE_PLAYING); if (caught_error) { g_printerr (_("ERROR: pipeline doesn't want to preroll.\n")); res = caught_error; } else { GstClockTime tfthen, tfnow; GstClockTimeDiff diff; PRINT (_("Setting pipeline to PLAYING ...\n")); if (gst_element_set_state (pipeline, GST_STATE_PLAYING) == GST_STATE_CHANGE_FAILURE) { GstMessage *err_msg; GstBus *bus; g_printerr (_("ERROR: pipeline doesn't want to play.\n")); bus = gst_element_get_bus (pipeline); if ((err_msg = gst_bus_poll (bus, GST_MESSAGE_ERROR, 0))) { print_error_message (err_msg); gst_message_unref (err_msg); } gst_object_unref (bus); res = -1; goto end; } tfthen = gst_util_get_timestamp (); caught_error = event_loop (pipeline, TRUE, FALSE, GST_STATE_PLAYING); res = caught_error; if (eos_on_shutdown && caught_error != ELR_NO_ERROR) { gboolean ignore_errors; waiting_eos = TRUE; if (caught_error == ELR_INTERRUPT) { PRINT (_("EOS on shutdown enabled -- Forcing EOS on the pipeline\n")); gst_element_send_event (pipeline, gst_event_new_eos ()); ignore_errors = FALSE; } else { PRINT (_("EOS on shutdown enabled -- waiting for EOS after Error\n")); ignore_errors = TRUE; } PRINT (_("Waiting for EOS...\n")); while (TRUE) { caught_error = event_loop (pipeline, TRUE, FALSE, GST_STATE_PLAYING); if (caught_error == ELR_NO_ERROR) { /* we got EOS */ PRINT (_("EOS received - stopping pipeline...\n")); break; } else if (caught_error == ELR_INTERRUPT) { PRINT (_ ("Interrupt while waiting for EOS - stopping pipeline...\n")); res = caught_error; break; } else if (caught_error == ELR_ERROR) { if (!ignore_errors) { PRINT (_("An error happened while waiting for EOS\n")); res = caught_error; break; } } } } tfnow = gst_util_get_timestamp (); diff = GST_CLOCK_DIFF (tfthen, tfnow); PRINT (_("Execution ended after %" GST_TIME_FORMAT "\n"), GST_TIME_ARGS (diff)); } PRINT (_("Setting pipeline to PAUSED ...\n")); gst_element_set_state (pipeline, GST_STATE_PAUSED); if (caught_error == ELR_NO_ERROR) gst_element_get_state (pipeline, &state, &pending, GST_CLOCK_TIME_NONE); /* iterate mainloop to process pending stuff */ while (g_main_context_iteration (NULL, FALSE)); /* No need to see all those pad caps going to NULL etc., it's just noise */ if (deep_notify_id != 0) g_signal_handler_disconnect (pipeline, deep_notify_id); PRINT (_("Setting pipeline to READY ...\n")); gst_element_set_state (pipeline, GST_STATE_READY); gst_element_get_state (pipeline, &state, &pending, GST_CLOCK_TIME_NONE); #if 0 if (check_index) { print_index_stats (index_stats); g_ptr_array_free (index_stats, TRUE); } #endif end: PRINT (_("Setting pipeline to NULL ...\n")); gst_element_set_state (pipeline, GST_STATE_NULL); } PRINT (_("Freeing pipeline ...\n")); gst_object_unref (pipeline); gst_deinit (); return res; }