mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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1085 lines
32 KiB
C
1085 lines
32 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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* 2004 Thomas Vander Stichele <thomas@apestaart.org>
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*
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* gst-launch.c: tool to launch GStreamer pipelines from the command line
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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/* FIXME: hack alert */
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#ifdef HAVE_WIN32
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#define DISABLE_FAULT_HANDLER
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#endif
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#include <stdio.h>
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#include <string.h>
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#include <signal.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifndef DISABLE_FAULT_HANDLER
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#include <sys/wait.h>
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#endif
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#include <locale.h> /* for LC_ALL */
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#include "tools.h"
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/* FIXME: This is just a temporary hack. We should have a better
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* check for siginfo handling. */
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#ifdef SA_SIGINFO
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#define USE_SIGINFO
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#endif
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extern volatile gboolean glib_on_error_halt;
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#ifndef DISABLE_FAULT_HANDLER
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static void fault_restore (void);
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static void fault_spin (void);
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static void sigint_restore (void);
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static gboolean caught_intr = FALSE;
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#endif
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/* event_loop return codes */
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typedef enum _EventLoopResult
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{
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ELR_NO_ERROR = 0,
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ELR_ERROR,
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ELR_INTERRUPT
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} EventLoopResult;
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static GstElement *pipeline;
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static EventLoopResult caught_error = ELR_NO_ERROR;
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static gboolean quiet = FALSE;
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static gboolean tags = FALSE;
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static gboolean messages = FALSE;
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static gboolean is_live = FALSE;
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static gboolean waiting_eos = FALSE;
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/* convenience macro so we don't have to litter the code with if(!quiet) */
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#define PRINT if(!quiet)g_print
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#ifndef DISABLE_FAULT_HANDLER
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#ifndef USE_SIGINFO
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static void
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fault_handler_sighandler (int signum)
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{
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fault_restore ();
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/* printf is used instead of g_print(), since it's less likely to
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* deadlock */
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switch (signum) {
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case SIGSEGV:
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fprintf (stderr, "Caught SIGSEGV\n");
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break;
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case SIGQUIT:
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if (!quiet)
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printf ("Caught SIGQUIT\n");
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break;
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default:
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fprintf (stderr, "signo: %d\n", signum);
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break;
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}
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fault_spin ();
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}
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#else /* USE_SIGINFO */
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static void
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fault_handler_sigaction (int signum, siginfo_t * si, void *misc)
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{
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fault_restore ();
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/* printf is used instead of g_print(), since it's less likely to
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* deadlock */
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switch (si->si_signo) {
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case SIGSEGV:
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fprintf (stderr, "Caught SIGSEGV accessing address %p\n", si->si_addr);
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break;
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case SIGQUIT:
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if (!quiet)
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printf ("Caught SIGQUIT\n");
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break;
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default:
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fprintf (stderr, "signo: %d\n", si->si_signo);
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fprintf (stderr, "errno: %d\n", si->si_errno);
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fprintf (stderr, "code: %d\n", si->si_code);
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break;
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}
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fault_spin ();
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}
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#endif /* USE_SIGINFO */
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static void
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fault_spin (void)
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{
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int spinning = TRUE;
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glib_on_error_halt = FALSE;
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g_on_error_stack_trace ("gst-launch");
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wait (NULL);
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/* FIXME how do we know if we were run by libtool? */
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fprintf (stderr,
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"Spinning. Please run 'gdb gst-launch %d' to continue debugging, "
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"Ctrl-C to quit, or Ctrl-\\ to dump core.\n", (gint) getpid ());
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while (spinning)
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g_usleep (1000000);
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}
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static void
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fault_restore (void)
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{
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struct sigaction action;
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memset (&action, 0, sizeof (action));
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action.sa_handler = SIG_DFL;
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sigaction (SIGSEGV, &action, NULL);
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sigaction (SIGQUIT, &action, NULL);
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}
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static void
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fault_setup (void)
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{
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struct sigaction action;
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memset (&action, 0, sizeof (action));
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#ifdef USE_SIGINFO
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action.sa_sigaction = fault_handler_sigaction;
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action.sa_flags = SA_SIGINFO;
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#else
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action.sa_handler = fault_handler_sighandler;
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#endif
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sigaction (SIGSEGV, &action, NULL);
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sigaction (SIGQUIT, &action, NULL);
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}
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#endif /* DISABLE_FAULT_HANDLER */
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typedef struct _GstIndexStats
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{
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gint id;
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gchar *desc;
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guint num_frames;
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guint num_keyframes;
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guint num_dltframes;
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GstClockTime last_keyframe;
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GstClockTime last_dltframe;
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GstClockTime min_keyframe_gap;
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GstClockTime max_keyframe_gap;
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GstClockTime avg_keyframe_gap;
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} GstIndexStats;
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static void
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entry_added (GstIndex * index, GstIndexEntry * entry, gpointer user_data)
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{
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GPtrArray *index_stats = (GPtrArray *) user_data;
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GstIndexStats *s;
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switch (entry->type) {
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case GST_INDEX_ENTRY_ID:
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/* we have a new writer */
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GST_DEBUG_OBJECT (index, "id %d: describes writer %s", entry->id,
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GST_INDEX_ID_DESCRIPTION (entry));
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if (entry->id >= index_stats->len) {
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g_ptr_array_set_size (index_stats, entry->id + 1);
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}
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s = g_new (GstIndexStats, 1);
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s->id = entry->id;
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s->desc = g_strdup (GST_INDEX_ID_DESCRIPTION (entry));
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s->num_frames = s->num_keyframes = s->num_dltframes = 0;
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s->last_keyframe = s->last_dltframe = GST_CLOCK_TIME_NONE;
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s->min_keyframe_gap = s->max_keyframe_gap = s->avg_keyframe_gap =
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GST_CLOCK_TIME_NONE;
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g_ptr_array_index (index_stats, entry->id) = s;
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break;
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case GST_INDEX_ENTRY_FORMAT:
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/* have not found any code calling this */
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GST_DEBUG_OBJECT (index, "id %d: registered format %d for %s\n",
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entry->id, GST_INDEX_FORMAT_FORMAT (entry),
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GST_INDEX_FORMAT_KEY (entry));
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break;
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case GST_INDEX_ENTRY_ASSOCIATION:
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{
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gint64 ts;
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GstAssocFlags flags = GST_INDEX_ASSOC_FLAGS (entry);
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s = g_ptr_array_index (index_stats, entry->id);
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gst_index_entry_assoc_map (entry, GST_FORMAT_TIME, &ts);
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if (flags & GST_ASSOCIATION_FLAG_KEY_UNIT) {
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s->num_keyframes++;
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if (GST_CLOCK_TIME_IS_VALID (ts)) {
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if (GST_CLOCK_TIME_IS_VALID (s->last_keyframe)) {
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GstClockTimeDiff d = GST_CLOCK_DIFF (s->last_keyframe, ts);
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if (G_UNLIKELY (d < 0)) {
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GST_WARNING ("received out-of-order keyframe at %"
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GST_TIME_FORMAT, GST_TIME_ARGS (ts));
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/* FIXME: does it still make sense to use that for the statistics */
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d = GST_CLOCK_DIFF (ts, s->last_keyframe);
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}
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if (GST_CLOCK_TIME_IS_VALID (s->min_keyframe_gap)) {
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if (d < s->min_keyframe_gap)
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s->min_keyframe_gap = d;
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} else {
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s->min_keyframe_gap = d;
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}
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if (GST_CLOCK_TIME_IS_VALID (s->max_keyframe_gap)) {
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if (d > s->max_keyframe_gap)
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s->max_keyframe_gap = d;
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} else {
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s->max_keyframe_gap = d;
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}
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if (GST_CLOCK_TIME_IS_VALID (s->avg_keyframe_gap)) {
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s->avg_keyframe_gap = (d + s->num_frames * s->avg_keyframe_gap) /
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(s->num_frames + 1);
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} else {
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s->avg_keyframe_gap = d;
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}
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}
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s->last_keyframe = ts;
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}
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}
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if (flags & GST_ASSOCIATION_FLAG_DELTA_UNIT) {
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s->num_dltframes++;
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if (GST_CLOCK_TIME_IS_VALID (ts)) {
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s->last_dltframe = ts;
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}
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}
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s->num_frames++;
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break;
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}
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default:
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break;
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}
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}
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/* print statistics from the entry_added callback, free the entries */
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static void
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print_index_stats (GPtrArray * index_stats)
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{
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gint i;
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if (index_stats->len) {
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g_print (_("Index statistics\n"));
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}
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for (i = 0; i < index_stats->len; i++) {
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GstIndexStats *s = g_ptr_array_index (index_stats, i);
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if (s) {
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g_print ("id %d, %s\n", s->id, s->desc);
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if (s->num_frames) {
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GstClockTime last_frame = s->last_keyframe;
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if (GST_CLOCK_TIME_IS_VALID (s->last_dltframe)) {
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if (!GST_CLOCK_TIME_IS_VALID (last_frame) ||
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(s->last_dltframe > last_frame))
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last_frame = s->last_dltframe;
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}
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if (GST_CLOCK_TIME_IS_VALID (last_frame)) {
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g_print (" total time = %" GST_TIME_FORMAT "\n",
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GST_TIME_ARGS (last_frame));
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}
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g_print (" frame/keyframe rate = %u / %u = ", s->num_frames,
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s->num_keyframes);
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if (s->num_keyframes)
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g_print ("%lf\n", s->num_frames / (gdouble) s->num_keyframes);
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else
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g_print ("-\n");
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if (s->num_keyframes) {
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g_print (" min/avg/max keyframe gap = %" GST_TIME_FORMAT ", %"
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GST_TIME_FORMAT ", %" GST_TIME_FORMAT "\n",
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GST_TIME_ARGS (s->min_keyframe_gap),
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GST_TIME_ARGS (s->avg_keyframe_gap),
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GST_TIME_ARGS (s->max_keyframe_gap));
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}
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} else {
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g_print (" no stats\n");
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}
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g_free (s->desc);
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g_free (s);
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}
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}
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}
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static void
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print_error_message (GstMessage * msg)
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{
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GError *err = NULL;
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gchar *name, *debug = NULL;
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name = gst_object_get_path_string (msg->src);
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gst_message_parse_error (msg, &err, &debug);
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g_printerr (_("ERROR: from element %s: %s\n"), name, err->message);
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if (debug != NULL)
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g_printerr (_("Additional debug info:\n%s\n"), debug);
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g_error_free (err);
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g_free (debug);
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g_free (name);
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}
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static void
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print_tag (const GstTagList * list, const gchar * tag, gpointer unused)
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{
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gint i, count;
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count = gst_tag_list_get_tag_size (list, tag);
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for (i = 0; i < count; i++) {
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gchar *str;
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if (gst_tag_get_type (tag) == G_TYPE_STRING) {
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if (!gst_tag_list_get_string_index (list, tag, i, &str))
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g_assert_not_reached ();
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} else if (gst_tag_get_type (tag) == GST_TYPE_BUFFER) {
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GstBuffer *img;
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img = gst_value_get_buffer (gst_tag_list_get_value_index (list, tag, i));
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if (img) {
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gchar *caps_str;
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caps_str = GST_BUFFER_CAPS (img) ?
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gst_caps_to_string (GST_BUFFER_CAPS (img)) : g_strdup ("unknown");
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str = g_strdup_printf ("buffer of %u bytes, type: %s",
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GST_BUFFER_SIZE (img), caps_str);
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g_free (caps_str);
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} else {
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str = g_strdup ("NULL buffer");
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}
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} else if (gst_tag_get_type (tag) == GST_TYPE_DATE_TIME) {
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GstDateTime *dt = NULL;
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gst_tag_list_get_date_time_index (list, tag, i, &dt);
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if (gst_date_time_get_hour (dt) < 0) {
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str = g_strdup_printf ("%02u-%02u-%04u", gst_date_time_get_day (dt),
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gst_date_time_get_month (dt), gst_date_time_get_year (dt));
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} else {
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gdouble tz_offset = gst_date_time_get_time_zone_offset (dt);
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gchar tz_str[32];
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if (tz_offset != 0.0) {
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g_snprintf (tz_str, sizeof (tz_str), "(UTC %s%gh)",
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(tz_offset > 0.0) ? "+" : "", tz_offset);
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} else {
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g_snprintf (tz_str, sizeof (tz_str), "(UTC)");
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}
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str = g_strdup_printf ("%04u-%02u-%02u %02u:%02u:%02u %s",
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gst_date_time_get_year (dt), gst_date_time_get_month (dt),
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gst_date_time_get_day (dt), gst_date_time_get_hour (dt),
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gst_date_time_get_minute (dt), gst_date_time_get_second (dt),
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tz_str);
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}
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gst_date_time_unref (dt);
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} else {
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str =
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g_strdup_value_contents (gst_tag_list_get_value_index (list, tag, i));
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}
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if (i == 0) {
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PRINT ("%16s: %s\n", gst_tag_get_nick (tag), str);
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} else {
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PRINT ("%16s: %s\n", "", str);
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}
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g_free (str);
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}
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}
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#ifndef DISABLE_FAULT_HANDLER
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/* we only use sighandler here because the registers are not important */
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static void
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sigint_handler_sighandler (int signum)
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{
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PRINT ("Caught interrupt -- ");
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/* If we were waiting for an EOS, we still want to catch
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* the next signal to shutdown properly (and the following one
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* will quit the program). */
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if (waiting_eos) {
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waiting_eos = FALSE;
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} else {
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sigint_restore ();
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}
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/* we set a flag that is checked by the mainloop, we cannot do much in the
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* interrupt handler (no mutex or other blocking stuff) */
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caught_intr = TRUE;
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}
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/* is called every 250 milliseconds (4 times a second), the interrupt handler
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* will set a flag for us. We react to this by posting a message. */
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static gboolean
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check_intr (GstElement * pipeline)
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{
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if (!caught_intr) {
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return TRUE;
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} else {
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caught_intr = FALSE;
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PRINT ("handling interrupt.\n");
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|
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/* post an application specific message */
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gst_element_post_message (GST_ELEMENT (pipeline),
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gst_message_new_application (GST_OBJECT (pipeline),
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gst_structure_new ("GstLaunchInterrupt",
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"message", G_TYPE_STRING, "Pipeline interrupted", NULL)));
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/* remove timeout handler */
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return FALSE;
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}
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}
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|
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static void
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sigint_setup (void)
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{
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struct sigaction action;
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memset (&action, 0, sizeof (action));
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action.sa_handler = sigint_handler_sighandler;
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sigaction (SIGINT, &action, NULL);
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}
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|
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static void
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sigint_restore (void)
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{
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struct sigaction action;
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|
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memset (&action, 0, sizeof (action));
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action.sa_handler = SIG_DFL;
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sigaction (SIGINT, &action, NULL);
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}
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|
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/* FIXME 0.11: remove SIGUSR handling (also from man page) */
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static void
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play_handler (int signum)
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{
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switch (signum) {
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case SIGUSR1:
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PRINT ("Caught SIGUSR1 - Play request.\n");
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gst_element_set_state (pipeline, GST_STATE_PLAYING);
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break;
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case SIGUSR2:
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PRINT ("Caught SIGUSR2 - Stop request.\n");
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gst_element_set_state (pipeline, GST_STATE_NULL);
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break;
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}
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}
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|
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static void
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play_signal_setup (void)
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{
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struct sigaction action;
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|
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memset (&action, 0, sizeof (action));
|
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action.sa_handler = play_handler;
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sigaction (SIGUSR1, &action, NULL);
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sigaction (SIGUSR2, &action, NULL);
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}
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#endif /* DISABLE_FAULT_HANDLER */
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|
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/* returns ELR_ERROR if there was an error
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|
* 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;
|
|
}
|
|
}
|
|
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 no_sigusr_handler = FALSE;
|
|
gboolean trace = FALSE;
|
|
gboolean eos_on_shutdown = FALSE;
|
|
gboolean check_index = FALSE;
|
|
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},
|
|
{"no-sigusr-handler", '\0', 0, G_OPTION_ARG_NONE, &no_sigusr_handler,
|
|
N_("Do not install signal handlers for SIGUSR1 and SIGUSR2"), 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},
|
|
{"index", 'i', 0, G_OPTION_ARG_NONE, &check_index,
|
|
N_("Gather and print index statistics"), NULL},
|
|
GST_TOOLS_GOPTION_VERSION,
|
|
{NULL}
|
|
};
|
|
GOptionContext *ctx;
|
|
GError *err = NULL;
|
|
#endif
|
|
GstIndex *index;
|
|
GPtrArray *index_stats = NULL;
|
|
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
|
|
|
|
g_thread_init (NULL);
|
|
|
|
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 ();
|
|
|
|
if (!no_sigusr_handler)
|
|
play_signal_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 (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);
|
|
}
|
|
}
|
|
|
|
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 (check_index) {
|
|
print_index_stats (index_stats);
|
|
g_ptr_array_free (index_stats, TRUE);
|
|
}
|
|
|
|
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;
|
|
}
|