/* compile with:
 * gcc bgo-650258.c `pkg-config --cflags --libs gstreamer-0.10` */
#include <gst/gst.h>

int
main (int argc, char ** argv)
{
  GstBus *bus;
  GstElement *pipe, *src, *demux;
  GstFormat fmt = GST_FORMAT_TIME;
  GstMessage *msg;
  gint64 len = -1;
  gchar *location;

  gst_init (&argc, &argv);

  if (argc < 2 || !gst_uri_is_valid (argv[1]))
    g_error ("Usage: %s file:///path/to/file", argv[0]);

  pipe = gst_pipeline_new ("pipeline");
  src = gst_element_factory_make ("filesrc", NULL);
  demux = gst_element_factory_make ("matroskademux", NULL);

  location = gst_uri_get_location (argv[1]);
  g_object_set (src, "location", location, NULL);
  g_free (location);

  gst_bin_add_many (GST_BIN (pipe), src, demux, NULL);
  gst_element_link (src, demux);

  gst_element_set_state (pipe, GST_STATE_PAUSED);

  while (TRUE) {
    GstTagList *tags = NULL;

    msg = gst_bus_timed_pop_filtered (GST_ELEMENT_BUS (pipe),
				      GST_CLOCK_TIME_NONE,
				      GST_MESSAGE_ASYNC_DONE
				      | GST_MESSAGE_TAG
				      | GST_MESSAGE_ERROR);

    if (GST_MESSAGE_TYPE (msg) != GST_MESSAGE_TAG) /* error or async_done */
      break;

    gst_message_unref (msg);
  };

  gst_element_query_duration (demux, &fmt, &len);
  g_printf ("gst_element_query_duration: %" G_GINT64_FORMAT "\n", len);

  gst_element_set_state (pipe, GST_STATE_NULL);
  gst_object_unref (pipe);

  return 0;
}