/* GStreamer

 * Copyright (C) <2007> Wim Taymans <wim.taymans@gmail.com>

 *

 * 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

#ifdef HAVE_STDLIB_H

#include <stdlib.h>             /* exit() */

#endif

#include <gst/gst.h>

#define UPDATE_INTERVAL 500

static int arg_count;

static int max_count;

static gboolean

update_scale (GstElement * element)

{

  gint64 duration = -1;

  gint64 position = -1;

  gchar dur_str[32], pos_str[32];

  if (gst_element_query_position (element, GST_FORMAT_TIME, &position) &&

      position != -1) {

    g_snprintf (pos_str, 32, "%" GST_TIME_FORMAT, GST_TIME_ARGS (position));

  } else {

    g_snprintf (pos_str, 32, "-:--:--.---------");

  }

  if (gst_element_query_duration (element, GST_FORMAT_TIME, &duration) &&

      duration != -1) {

    g_snprintf (dur_str, 32, "%" GST_TIME_FORMAT, GST_TIME_ARGS (duration));

  } else {

    g_snprintf (dur_str, 32, "-:--:--.---------");

  }

  g_print ("%s / %s\n", pos_str, dur_str);

  return TRUE;

}

static void

warning_cb (GstBus * bus, GstMessage * msg, gpointer foo)

{

  GError *err = NULL;

  gchar *dbg = NULL;

  gst_message_parse_warning (msg, &err, &dbg;;

  g_printerr ("WARNING: %s (%s)\n", err->message, (dbg) ? dbg : "no details");

  g_error_free (err);

  g_free (dbg);

}

static void

error_cb (GstBus * bus, GstMessage * msg, GMainLoop * main_loop)

{

  GError *err = NULL;

  gchar *dbg = NULL;

  gst_message_parse_error (msg, &err, &dbg;;

  g_printerr ("ERROR: %s (%s)\n", err->message, (dbg) ? dbg : "no details");

  g_main_loop_quit (main_loop);

  g_error_free (err);

  g_free (dbg);

}

static void

eos_cb (GstBus * bus, GstMessage * msg, GMainLoop * main_loop)

{

  g_print ("EOS\n");

  g_main_loop_quit (main_loop);

}

static void

new_clock_cb (GstBus * bus, GstMessage * msg, gpointer nothing)

{

  GstClock *clock;

  gst_message_parse_new_clock (msg, &clock);

  g_print ("NEW CLOCK: %s\n", GST_OBJECT_NAME (clock));

}

static void

clock_lost_cb (GstBus * bus, GstMessage * msg, GstElement * playbin)

{

  GstClock *clock;

  gst_message_parse_clock_lost (msg, &clock);

  g_print ("CLOCK LOST: %s\n", GST_OBJECT_NAME (clock));

  gst_element_set_state (playbin, GST_STATE_PAUSED);

  gst_element_set_state (playbin, GST_STATE_PLAYING);

}

static void

about_to_finish_cb (GstElement * element, gchar * uri[])

{

  if (arg_count < max_count) {

    g_object_set (G_OBJECT (element), "uri", uri[arg_count], NULL);

    arg_count++;

  }

}

gint

main (gint argc, gchar * argv[])

{

  GstStateChangeReturn res;

  GstElement *player;

  GMainLoop *loop;

  GstBus *bus;

  gst_init (&argc, &argv);

  loop = g_main_loop_new (NULL, TRUE);

  if (argc < 2) {

    g_print ("usage: %s <uri> [<uri> ... ]\n", argv[0]);

    exit (-1);

  }

  player = gst_element_factory_make ("playbin", "player");

  g_assert (player);

  bus = gst_pipeline_get_bus (GST_PIPELINE (player));

  gst_bus_add_signal_watch (bus);

  g_signal_connect (bus, "message::eos", G_CALLBACK (eos_cb), loop);

  g_signal_connect (bus, "message::error", G_CALLBACK (error_cb), loop);

  g_signal_connect (bus, "message::warning", G_CALLBACK (warning_cb), NULL);

  g_signal_connect (bus, "message::new-clock", G_CALLBACK (new_clock_cb), NULL);

  g_signal_connect (bus, "message::clock-lost", G_CALLBACK (clock_lost_cb),

      player);

  g_object_set (G_OBJECT (player), "uri", argv[1], NULL);

  arg_count = 2;

  max_count = argc;

  g_signal_connect (player, "about-to-finish", G_CALLBACK (about_to_finish_cb),

      argv);

  res = gst_element_set_state (player, GST_STATE_PLAYING);

  if (res == GST_STATE_CHANGE_FAILURE) {

    g_print ("could not play\n");

    return -1;

  }

  g_timeout_add (UPDATE_INTERVAL, (GSourceFunc) update_scale, player);

  g_main_loop_run (loop);

  /* tidy up */

  gst_element_set_state (player, GST_STATE_NULL);

  gst_object_unref (player);

  gst_object_unref (bus);

  return 0;

}