| /* 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., 59 Temple Place - Suite 330, |
| * Boston, MA 02111-1307, USA. |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| # include "config.h" |
| #endif |
| |
| /* FIXME: hack alert */ |
| #ifdef HAVE_WIN32 |
| #define DISABLE_FAULT_HANDLER |
| #endif |
| |
| #include <stdio.h> |
| #include <string.h> |
| #include <signal.h> |
| #ifdef HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| #ifndef DISABLE_FAULT_HANDLER |
| #include <sys/wait.h> |
| #endif |
| #include <locale.h> /* for LC_ALL */ |
| #include "tools.h" |
| |
| /* FIXME: This is just a temporary hack. We should have a better |
| * check for siginfo handling. */ |
| #ifdef SA_SIGINFO |
| #define USE_SIGINFO |
| #endif |
| |
| extern volatile gboolean glib_on_error_halt; |
| |
| #ifndef DISABLE_FAULT_HANDLER |
| static void fault_restore (void); |
| static void fault_spin (void); |
| static void sigint_restore (void); |
| static gboolean caught_intr = FALSE; |
| #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 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 |
| |
| #ifndef DISABLE_FAULT_HANDLER |
| #ifndef USE_SIGINFO |
| 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 (); |
| } |
| |
| #else /* USE_SIGINFO */ |
| |
| static void |
| fault_handler_sigaction (int signum, siginfo_t * si, void *misc) |
| { |
| fault_restore (); |
| |
| /* printf is used instead of g_print(), since it's less likely to |
| * deadlock */ |
| switch (si->si_signo) { |
| case SIGSEGV: |
| fprintf (stderr, "Caught SIGSEGV accessing address %p\n", si->si_addr); |
| break; |
| case SIGQUIT: |
| if (!quiet) |
| printf ("Caught SIGQUIT\n"); |
| break; |
| default: |
| fprintf (stderr, "signo: %d\n", si->si_signo); |
| fprintf (stderr, "errno: %d\n", si->si_errno); |
| fprintf (stderr, "code: %d\n", si->si_code); |
| break; |
| } |
| |
| fault_spin (); |
| } |
| #endif /* USE_SIGINFO */ |
| |
| static void |
| fault_spin (void) |
| { |
| int spinning = TRUE; |
| |
| glib_on_error_halt = FALSE; |
| g_on_error_stack_trace ("gst-launch"); |
| |
| wait (NULL); |
| |
| /* FIXME how do we know if we were run by libtool? */ |
| fprintf (stderr, |
| "Spinning. Please run 'gdb gst-launch %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)); |
| #ifdef USE_SIGINFO |
| action.sa_sigaction = fault_handler_sigaction; |
| action.sa_flags = SA_SIGINFO; |
| #else |
| action.sa_handler = fault_handler_sighandler; |
| #endif |
| |
| sigaction (SIGSEGV, &action, NULL); |
| sigaction (SIGQUIT, &action, NULL); |
| } |
| #endif /* DISABLE_FAULT_HANDLER */ |
| |
| #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_error_free (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; |
| |
| if (gst_tag_get_type (tag) == G_TYPE_STRING) { |
| if (!gst_tag_list_get_string_index (list, tag, i, &str)) |
| g_assert_not_reached (); |
| } else if (gst_tag_get_type (tag) == GST_TYPE_BUFFER) { |
| GstBuffer *img; |
| |
| img = gst_value_get_buffer (gst_tag_list_get_value_index (list, tag, i)); |
| if (img) { |
| gchar *caps_str; |
| |
| caps_str = g_strdup ("unknown"); |
| 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 ("NULL buffer"); |
| } |
| } 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_get_hour (dt) < 0) { |
| str = g_strdup_printf ("%02u-%02u-%04u", gst_date_time_get_day (dt), |
| gst_date_time_get_month (dt), gst_date_time_get_year (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 (i == 0) { |
| PRINT ("%16s: %s\n", gst_tag_get_nick (tag), str); |
| } else { |
| PRINT ("%16s: %s\n", "", str); |
| } |
| |
| g_free (str); |
| } |
| } |
| |
| #ifndef DISABLE_FAULT_HANDLER |
| /* we only use sighandler here because the registers are not important */ |
| static void |
| sigint_handler_sighandler (int signum) |
| { |
| PRINT ("Caught interrupt -- "); |
| |
| /* If we were waiting for an EOS, we still want to catch |
| * the next signal to shutdown properly (and the following one |
| * will quit the program). */ |
| if (waiting_eos) { |
| waiting_eos = FALSE; |
| } else { |
| sigint_restore (); |
| } |
| /* we set a flag that is checked by the mainloop, we cannot do much in the |
| * interrupt handler (no mutex or other blocking stuff) */ |
| caught_intr = TRUE; |
| } |
| |
| /* is called every 250 milliseconds (4 times a second), the interrupt handler |
| * will set a flag for us. We react to this by posting a message. */ |
| static gboolean |
| check_intr (GstElement * pipeline) |
| { |
| if (!caught_intr) { |
| return TRUE; |
| } else { |
| caught_intr = FALSE; |
| 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 timeout handler */ |
| return FALSE; |
| } |
| } |
| |
| static void |
| sigint_setup (void) |
| { |
| struct sigaction action; |
| |
| memset (&action, 0, sizeof (action)); |
| action.sa_handler = sigint_handler_sighandler; |
| |
| sigaction (SIGINT, &action, NULL); |
| } |
| |
| static void |
| sigint_restore (void) |
| { |
| struct sigaction action; |
| |
| memset (&action, 0, sizeof (action)); |
| action.sa_handler = SIG_DFL; |
| |
| sigaction (SIGINT, &action, NULL); |
| } |
| #endif /* DISABLE_FAULT_HANDLER */ |
| |
| /* 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, GstState target_state) |
| { |
| #ifndef DISABLE_FAULT_HANDLER |
| gulong timeout_id; |
| #endif |
| GstBus *bus; |
| GstMessage *message = NULL; |
| EventLoopResult res = ELR_NO_ERROR; |
| gboolean buffering = FALSE; |
| |
| bus = gst_element_get_bus (GST_ELEMENT (pipeline)); |
| |
| #ifndef DISABLE_FAULT_HANDLER |
| timeout_id = g_timeout_add (250, (GSourceFunc) check_intr, 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 *tags; |
| |
| 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, &tags); |
| gst_tag_list_foreach (tags, print_tag, NULL); |
| gst_tag_list_free (tags); |
| } |
| 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_error_free (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_error_free (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; |
| |
| /* ignore when we are buffering since then we mess with the states |
| * ourselves. */ |
| if (buffering) { |
| PRINT (_("Prerolled, waiting for buffering to finish...\n")); |
| 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) |
| 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 |
| goto exit; |
| } else { |
| /* buffering busy */ |
| if (buffering == FALSE && 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_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; |
| } |
| 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); |
| #ifndef DISABLE_FAULT_HANDLER |
| g_source_remove (timeout_id); |
| #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); |
| } |
| default: |
| break; |
| } |
| return GST_BUS_PASS; |
| } |
| |
| int |
| main (int argc, char *argv[]) |
| { |
| /* options */ |
| gboolean verbose = FALSE; |
| gboolean no_fault = FALSE; |
| gboolean trace = 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}, |
| {"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_NONE, &exclude_args, |
| N_("Do not output status information of TYPE"), N_("TYPE1,TYPE2,...")}, |
| {"no-fault", 'f', 0, G_OPTION_ARG_NONE, &no_fault, |
| N_("Do not install a fault handler"), NULL}, |
| {"trace", 'T', 0, G_OPTION_ARG_NONE, &trace, |
| N_("Print alloc trace (if enabled at compile time)"), 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; |
| gint res = 0; |
| |
| free (malloc (8)); /* -lefence */ |
| |
| #ifdef ENABLE_NLS |
| bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR); |
| bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8"); |
| textdomain (GETTEXT_PACKAGE); |
| #endif |
| |
| gst_tools_set_prgname ("gst-launch"); |
| |
| #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"); |
| exit (1); |
| } |
| g_option_context_free (ctx); |
| #else |
| gst_init (&argc, &argv); |
| #endif |
| |
| gst_tools_print_version ("gst-launch"); |
| |
| #ifndef DISABLE_FAULT_HANDLER |
| if (!no_fault) |
| fault_setup (); |
| |
| sigint_setup (); |
| #endif |
| |
| if (trace) { |
| if (!gst_alloc_trace_available ()) { |
| g_warning ("Trace not available (recompile with trace enabled)."); |
| } |
| gst_alloc_trace_set_flags_all (GST_ALLOC_TRACE_LIVE | |
| GST_ALLOC_TRACE_MEM_LIVE); |
| gst_alloc_trace_print_live (); |
| } |
| |
| /* 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_error_free (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_error_free (error); |
| return 1; |
| } |
| |
| if (verbose) { |
| gchar **exclude_list = |
| exclude_args ? g_strsplit (exclude_args, ",", 0) : NULL; |
| g_signal_connect (pipeline, "deep-notify", |
| G_CALLBACK (gst_object_default_deep_notify), exclude_list); |
| } |
| |
| 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 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); |
| 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, 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, GST_STATE_PAUSED); |
| if (caught_error) { |
| g_printerr (_("ERROR: pipeline doesn't want to preroll.\n")); |
| goto end; |
| } |
| state = GST_STATE_PAUSED; |
| /* fallthrough */ |
| case GST_STATE_CHANGE_SUCCESS: |
| PRINT (_("Pipeline is PREROLLED ...\n")); |
| break; |
| } |
| |
| caught_error = event_loop (pipeline, FALSE, GST_STATE_PLAYING); |
| |
| if (caught_error) { |
| g_printerr (_("ERROR: pipeline doesn't want to preroll.\n")); |
| } 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, GST_STATE_PLAYING); |
| if (eos_on_shutdown && caught_error == ELR_INTERRUPT) { |
| PRINT (_("EOS on shutdown enabled -- Forcing EOS on the pipeline\n")); |
| waiting_eos = TRUE; |
| gst_element_send_event (pipeline, gst_event_new_eos ()); |
| PRINT (_("Waiting for EOS...\n")); |
| caught_error = event_loop (pipeline, TRUE, GST_STATE_PLAYING); |
| |
| if (caught_error == ELR_NO_ERROR) { |
| /* we got EOS */ |
| PRINT (_("EOS received - stopping pipeline...\n")); |
| } else if (caught_error == ELR_ERROR) { |
| PRINT (_("An error happened while waiting for EOS\n")); |
| } |
| } |
| tfnow = gst_util_get_timestamp (); |
| |
| diff = GST_CLOCK_DIFF (tfthen, tfnow); |
| |
| PRINT (_("Execution ended after %" G_GUINT64_FORMAT " ns.\n"), 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)); |
| |
| 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); |
| gst_element_get_state (pipeline, &state, &pending, GST_CLOCK_TIME_NONE); |
| } |
| |
| PRINT (_("Freeing pipeline ...\n")); |
| gst_object_unref (pipeline); |
| |
| gst_deinit (); |
| if (trace) |
| gst_alloc_trace_print_live (); |
| |
| return res; |
| } |
