/* GStreamer * Copyright (C) 1999,2000 Erik Walthinsen * 2000 Wim Taymans * 2004 Thomas Vander Stichele * * 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 #include #include #include #ifdef HAVE_UNISTD_H #include #endif #ifdef G_OS_UNIX #include #include #elif defined (G_OS_WIN32) #define WIN32_LEAN_AND_MEAN #include #include #ifndef STDOUT_FILENO #define STDOUT_FILENO 1 #endif #define isatty _isatty #endif #include /* for LC_ALL */ #include "tools.h" #ifdef HAVE_WINMM #include #endif extern volatile gboolean glib_on_error_halt; #ifdef G_OS_UNIX static void fault_restore (void); static void fault_spin (void); #endif /* exit codes */ typedef enum _LaunchExitCode { LEC_STATE_CHANGE_FAILURE = -1, LEC_NO_ERROR = 0, LEC_ERROR, LEC_INTERRUPT } LaunchExitCode; static GMainLoop *loop = NULL; static GstElement *pipeline = NULL; /* options */ static gboolean quiet = FALSE; static gboolean tags = FALSE; static gboolean toc = FALSE; static gboolean messages = FALSE; static gboolean eos_on_shutdown = FALSE; static gchar **exclude_args = NULL; /* pipeline status */ static gboolean is_live = FALSE; static gboolean buffering = FALSE; static LaunchExitCode last_launch_code = LEC_NO_ERROR; static GstState target_state = GST_STATE_PAUSED; static gboolean prerolled = FALSE; static gboolean in_progress = FALSE; static GstClockTime tfthen = GST_CLOCK_TIME_NONE; static gboolean interrupting = FALSE; static gboolean waiting_eos = FALSE; /* convenience macro so we don't have to litter the code with if(!quiet) */ #define PRINT if(!quiet)gst_print #ifdef G_OS_UNIX static void fault_handler_sighandler (int signum) { fault_restore (); /* printf is used instead of gst_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) { gst_print ("%s:\n", _("Index statistics")); } for (i = 0; i < index_stats->len; i++) { GstIndexStats *s = g_ptr_array_index (index_stats, i); if (s) { gst_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)) { gst_print (" total time = %" GST_TIME_FORMAT "\n", GST_TIME_ARGS (last_frame)); } gst_print (" frame/keyframe rate = %u / %u = ", s->num_frames, s->num_keyframes); if (s->num_keyframes) gst_print ("%lf\n", s->num_frames / (gdouble) s->num_keyframes); else gst_print ("-\n"); if (s->num_keyframes) { gst_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 { gst_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); gst_printerr (_("ERROR: from element %s: %s\n"), name, err->message); if (debug != NULL) gst_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); gst_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)); } #ifdef G_OS_UNIX static guint signal_watch_hup_id; #endif #if defined(G_OS_UNIX) || defined(G_OS_WIN32) static guint signal_watch_intr_id; #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_intr_id = 0; return G_SOURCE_REMOVE; } #ifdef G_OS_UNIX static gboolean hup_handler (gpointer user_data) { GstElement *pipeline = (GstElement *) user_data; if (g_getenv ("GST_DEBUG_DUMP_DOT_DIR") != NULL) { PRINT ("SIGHUP: dumping dot file snapshot ...\n"); } else { PRINT ("SIGHUP: not dumping dot file snapshot, GST_DEBUG_DUMP_DOT_DIR " "environment variable not set.\n"); } /* dump graph on hup */ GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS (GST_BIN (pipeline), GST_DEBUG_GRAPH_SHOW_ALL, "gst-launch.snapshot"); return G_SOURCE_CONTINUE; } #endif #if defined(G_OS_WIN32) /* G_OS_UNIX */ static BOOL WINAPI w32_intr_handler (DWORD dwCtrlType) { if (pipeline) intr_handler ((gpointer) pipeline); SetConsoleCtrlHandler (w32_intr_handler, FALSE); return TRUE; } #endif /* G_OS_WIN32 */ #endif /* G_OS_UNIX */ static void do_initial_play (GstElement * pipeline) { PRINT (_("Setting pipeline to PLAYING ...\n")); tfthen = gst_util_get_timestamp (); if (gst_element_set_state (pipeline, GST_STATE_PLAYING) == GST_STATE_CHANGE_FAILURE) { gst_printerr (_("ERROR: pipeline doesn't want to play.\n")); last_launch_code = LEC_STATE_CHANGE_FAILURE; /* error message will be posted later */ return; } target_state = GST_STATE_PLAYING; } static gboolean bus_handler (GstBus * bus, GstMessage * message, gpointer data) { { 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:{ PRINT (_("Got EOS from element \"%s\".\n"), GST_MESSAGE_SRC_NAME (message)); if (eos_on_shutdown) PRINT (_("EOS received - stopping pipeline...\n")); g_main_loop_quit (loop); break; } 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_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 (target_state == GST_STATE_PAUSED && new == target_state) { prerolled = TRUE; PRINT (_("Pipeline is PREROLLED ...\n")); /* 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; } do_initial_play (pipeline); } /* 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 (target_state == GST_STATE_PAUSED) { do_initial_play (pipeline); break; } /* 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 { /* 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")); interrupting = TRUE; if (eos_on_shutdown) { if (waiting_eos) { PRINT (_ ("Interrupt while waiting for EOS - stopping pipeline...\n")); g_main_loop_quit (loop); } else { PRINT (_ ("EOS on shutdown enabled -- Forcing EOS on the pipeline\n")); gst_element_send_event (pipeline, gst_event_new_eos ()); PRINT (_("Waiting for EOS...\n")); waiting_eos = TRUE; } } else { g_main_loop_quit (loop); } } 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: in_progress = 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 (!in_progress && prerolled && target_state == GST_STATE_PAUSED) { do_initial_play (pipeline); } 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; } case GST_MESSAGE_PROPERTY_NOTIFY:{ const GValue *val; const gchar *name; GstObject *obj; gchar *val_str = NULL; gchar **ex_prop, *obj_name; if (quiet) break; gst_message_parse_property_notify (message, &obj, &name, &val); /* Let's not print anything for excluded properties... */ ex_prop = exclude_args; while (ex_prop != NULL && *ex_prop != NULL) { if (strcmp (name, *ex_prop) == 0) break; ex_prop++; } if (ex_prop != NULL && *ex_prop != NULL) break; obj_name = gst_object_get_path_string (GST_OBJECT (obj)); if (val != NULL) { if (G_VALUE_HOLDS_STRING (val)) val_str = g_value_dup_string (val); else if (G_VALUE_TYPE (val) == GST_TYPE_CAPS) val_str = gst_caps_to_string (g_value_get_boxed (val)); else if (G_VALUE_TYPE (val) == GST_TYPE_TAG_LIST) val_str = gst_tag_list_to_string (g_value_get_boxed (val)); else if (G_VALUE_TYPE (val) == GST_TYPE_STRUCTURE) val_str = gst_structure_to_string (g_value_get_boxed (val)); else val_str = gst_value_serialize (val); } else { val_str = g_strdup ("(no value)"); } gst_print ("%s: %s = %s\n", obj_name, name, val_str); g_free (obj_name); g_free (val_str); break; } default: /* just be quiet by default */ break; } } return TRUE; } 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; 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); if (target_state == GST_STATE_PAUSED) { gst_printerr (_("ERROR: pipeline doesn't want to preroll.\n")); } else if (interrupting) { PRINT (_("An error happened while waiting for EOS\n")); } /* we have an error */ last_launch_code = LEC_ERROR; g_main_loop_quit (loop); break; } default: break; } return GST_BUS_PASS; } static gboolean query_pipeline_position (gpointer user_data) { gint64 pos = -1, dur = -1; gboolean output_is_tty = GPOINTER_TO_INT (user_data); if (buffering) return G_SOURCE_CONTINUE; gst_element_query_position (pipeline, GST_FORMAT_TIME, &pos); gst_element_query_duration (pipeline, GST_FORMAT_TIME, &dur); if (pos >= 0) { gchar dstr[32], pstr[32]; /* FIXME: pretty print in nicer format */ g_snprintf (pstr, 32, "%" GST_TIME_FORMAT, GST_TIME_ARGS (pos)); pstr[9] = '\0'; g_snprintf (dstr, 32, "%" GST_TIME_FORMAT, GST_TIME_ARGS (dur)); dstr[9] = '\0'; if (dur > 0 && dur >= pos) { gdouble percent; percent = 100 * (gdouble) (pos) / dur; gst_print ("%s / %s (%.1f %%)%c", pstr, dstr, percent, output_is_tty ? '\r' : '\n'); } else gst_print ("%s / %s%c", pstr, dstr, output_is_tty ? '\r' : '\n'); } return G_SOURCE_CONTINUE; } #ifdef HAVE_WINMM static guint enable_winmm_timer_resolution (void) { TIMECAPS time_caps; guint resolution = 0; MMRESULT res; res = timeGetDevCaps (&time_caps, sizeof (TIMECAPS)); if (res != TIMERR_NOERROR) { g_warning ("timeGetDevCaps() returned non-zero code %d", res); return 0; } resolution = MIN (MAX (time_caps.wPeriodMin, 1), time_caps.wPeriodMax); res = timeBeginPeriod (resolution); if (res != TIMERR_NOERROR) { g_warning ("timeBeginPeriod() returned non-zero code %d", res); return 0; } PRINT (_("Use Windows high-resolution clock, precision: %u ms\n"), resolution); return resolution; } static void clear_winmm_timer_resolution (guint resolution) { if (resolution == 0) return; timeEndPeriod (resolution); } #endif int main (int argc, char *argv[]) { /* options */ gboolean verbose = FALSE; gboolean no_fault = FALSE; #if 0 gboolean check_index = FALSE; #endif gchar *savefile = NULL; gboolean no_position = FALSE; gboolean force_position = FALSE; #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, {"no-position", '\0', 0, G_OPTION_ARG_NONE, &no_position, N_("Do not print current position of pipeline. " "If this option is unspecified, the position will be printed " "when stdout is a TTY. " "To enable printing position when stdout is not a TTY, " "use \"force-position\" option"), NULL}, {"force-position", '\0', 0, G_OPTION_ARG_NONE, &force_position, N_("Allow printing current position of pipeline even if " "stdout is not a TTY. This option has no effect if " "the \"no-position\" option is specified"), NULL}, {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; guint bus_watch_id = 0; GSource *position_source = NULL; #ifdef HAVE_WINMM guint winmm_timer_resolution = 0; #endif 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); /* Ensure XInitThreads() is called if/when needed */ g_setenv ("GST_GL_XINITTHREADS", "1", TRUE); #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) gst_printerr ("Error initializing: %s\n", GST_STR_NULL (err->message)); else gst_printerr ("Error initializing: Unknown error!\n"); g_clear_error (&err); 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) { gst_printerr (_("ERROR: pipeline could not be constructed: %s.\n"), GST_STR_NULL (error->message)); g_clear_error (&error); } else { gst_printerr (_("ERROR: pipeline could not be constructed.\n")); } return 1; } else if (error) { gst_printerr (_("WARNING: erroneous pipeline: %s\n"), GST_STR_NULL (error->message)); g_clear_error (&error); return 1; } loop = g_main_loop_new (NULL, FALSE); if (!savefile) { 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) { gst_printerr (_("ERROR: the 'pipeline' element wasn't found.\n")); return 1; } gst_bin_add (GST_BIN (real_pipeline), pipeline); pipeline = real_pipeline; } #ifdef HAVE_WINMM /* Enable high-precision clock which will improve accuracy of various * Windows timer APIs (e.g., Sleep()), and it will increase the precision * of GstSystemClock as well */ /* NOTE: Once timer resolution is updated via timeBeginPeriod(), * application should undo it by calling timeEndPeriod() * * Prior to Windows 10, version 2004, timeBeginPeriod() affects global * Windows setting (meaning that it will affect other processes), * but starting with Windows 10, version 2004, this function no longer * affects global timer resolution */ winmm_timer_resolution = enable_winmm_timer_resolution (); #endif if (verbose) { deep_notify_id = gst_element_add_property_deep_notify_watch (pipeline, NULL, TRUE); } #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); bus_watch_id = gst_bus_add_watch (bus, bus_handler, 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: gst_printerr (_("Failed to set pipeline to PAUSED.\n")); last_launch_code = LEC_STATE_CHANGE_FAILURE; 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")); break; default: break; } #ifdef G_OS_UNIX signal_watch_intr_id = g_unix_signal_add (SIGINT, (GSourceFunc) intr_handler, pipeline); signal_watch_hup_id = g_unix_signal_add (SIGHUP, (GSourceFunc) hup_handler, pipeline); #elif defined(G_OS_WIN32) SetConsoleCtrlHandler (w32_intr_handler, TRUE); #endif if (!no_position) { gboolean output_is_tty = TRUE; if (!isatty (STDOUT_FILENO)) output_is_tty = FALSE; if (output_is_tty || (!output_is_tty && force_position)) { position_source = g_timeout_source_new (100); g_source_set_callback (position_source, query_pipeline_position, GINT_TO_POINTER (output_is_tty), NULL); g_source_attach (position_source, NULL); } } /* playing state will be set on state-changed message handler */ g_main_loop_run (loop); if (position_source) { g_source_destroy (position_source); g_source_unref (position_source); } { GstClockTime tfnow; GstClockTimeDiff diff; if (GST_CLOCK_TIME_IS_VALID (tfthen)) { tfnow = gst_util_get_timestamp (); diff = GST_CLOCK_DIFF (tfthen, tfnow); PRINT (_("Execution ended after %" GST_TIME_FORMAT "\n"), GST_TIME_ARGS (diff)); } } /* 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); #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); #ifdef G_OS_UNIX if (signal_watch_intr_id > 0) g_source_remove (signal_watch_intr_id); if (signal_watch_hup_id > 0) g_source_remove (signal_watch_hup_id); #endif g_source_remove (bus_watch_id); g_main_loop_unref (loop); #ifdef HAVE_WINMM /* Undo timeBeginPeriod() if required */ clear_winmm_timer_resolution (winmm_timer_resolution); #endif } PRINT (_("Freeing pipeline ...\n")); gst_object_unref (pipeline); gst_deinit (); return last_launch_code; }