/*

 * position-formats.c

 *

 * we mostly use GST_FORMAT_TIME in queries and seeks. Test the other ones to

 * know what works and what not.

 */

#include <gst/gst.h>

#include <stdio.h>

static gboolean

bus_message (GstBus * bus, GstMessage * message, gpointer user_data)

{

  GMainLoop *loop = (GMainLoop *) user_data;

  switch (GST_MESSAGE_TYPE (message)) {

    case GST_MESSAGE_ERROR:

    {

      GError *gerror;

      gchar *debug;

      gst_message_parse_error (message, &gerror, &debug);

      gst_object_default_error (GST_MESSAGE_SRC (message), gerror, debug);

      g_error_free (gerror);

      g_free (debug);

      g_main_loop_quit (loop);

      break;

    }

    case GST_MESSAGE_WARNING:

    {

      GError *gerror;

      gchar *debug;

      gst_message_parse_warning (message, &gerror, &debug);

      gst_object_default_error (GST_MESSAGE_SRC (message), gerror, debug);

      g_error_free (gerror);

      g_free (debug);

      g_main_loop_quit (loop);

      break;

    }

    case GST_MESSAGE_EOS:

      g_main_loop_quit (loop);

      break;

    default:

      break;

  }

  return TRUE;

}

static void

print_value (gboolean res, GstFormat fmt, gint64 val)

{

  if (res) {

    switch (fmt) {

      case GST_FORMAT_TIME:

        printf ("%" GST_TIME_FORMAT, GST_TIME_ARGS (val));

        break;

      case GST_FORMAT_PERCENT:

        printf ("%8.4lf%%", (gdouble) val / GST_FORMAT_PERCENT_SCALE);

        break;

      case GST_FORMAT_DEFAULT:

      case GST_FORMAT_BYTES:

      case GST_FORMAT_BUFFERS:

      default:

        printf ("%" G_GINT64_FORMAT, val);

        break;

    }

  } else {

    printf ("-");

  }

}

static gboolean

run_queries (gpointer user_data)

{

  GstElement *bin = (GstElement *) user_data;

  GstFormat i, fmt;

  gint64 pos, dur;

  gboolean pres, dres;

  for (i = GST_FORMAT_DEFAULT; i <= GST_FORMAT_PERCENT; i++) {

    fmt = i;

    pres = gst_element_query_position (bin, fmt, &pos;;

    fmt = i;

    dres = gst_element_query_duration (bin, fmt, &dur;;

    printf ("%-8s : ", gst_format_get_name (i));

    print_value (pres, fmt, pos);

    printf (" / ");

    print_value (dres, fmt, dur);

    printf ("\n");

  }

  printf ("\n");

  return TRUE;

}

gint

main (gint argc, gchar ** argv)

{

  gint res = 1;

  GstElement *bin;

  GstBus *bus;

  GMainLoop *loop;

  const gchar *uri;

  gst_init (&argc, &argv);

  if (argc < 2) {

    printf ("Usage: %s <uri>\n", argv[0]);

    goto Error;

  }

  uri = argv[1];

  /* build pipeline */

  bin = gst_element_factory_make ("playbin", NULL);

  if (!bin) {

    GST_WARNING ("need playbin from gst-plugins-base");

    goto Error;

  }

  g_object_set (bin, "uri", uri, NULL);

  loop = g_main_loop_new (NULL, TRUE);

  /* add watch for messages */

  bus = gst_pipeline_get_bus (GST_PIPELINE (bin));

  gst_bus_add_watch (bus, (GstBusFunc) bus_message, (gpointer) loop);

  gst_object_unref (bus);

  /* add timeout for queries */

  g_timeout_add_seconds (1, (GSourceFunc) run_queries, (gpointer) bin);

  /* run the show */

  if (gst_element_set_state (bin,

          GST_STATE_PLAYING) != GST_STATE_CHANGE_FAILURE) {

    g_main_loop_run (loop);

    gst_element_set_state (bin, GST_STATE_NULL);

  }

  /* cleanup */

  g_main_loop_unref (loop);

  gst_object_unref (G_OBJECT (bin));

  res = 0;

Error:

  return (res);

}