gstreamer/ext/dvdread/demo-play.c

#include <gnome.h>
#include <gst/gst.h>

GstPipeline *pipeline;
GstElement *v_queue, *a_queue, *v_thread, *a_thread;
GtkWidget *appwindow;
GtkWidget *gtk_socket;

void
eof (GstElement * src)
{
  g_print ("have eos, quitting\n");
  exit (0);
}

gboolean
idle_func (gpointer data)
{
  gst_bin_iterate (GST_BIN (data));
  return TRUE;
}

void
mpeg2parse_newpad (GstElement * parser, GstPad * pad, GstElement * pipeline)
{

  g_print ("***** a new pad %s was created\n", gst_pad_get_name (pad));

  if (strncmp (gst_pad_get_name (pad), "video_", 6) == 0) {
    gst_pad_link (pad, gst_element_get_pad (v_queue, "sink"));
    gst_bin_add (GST_BIN (pipeline), v_thread);
    gst_element_set_state (v_thread, GST_STATE_PLAYING);
  } else if (strcmp (gst_pad_get_name (pad), "private_stream_1.0") == 0) {
    gst_pad_link (pad, gst_element_get_pad (a_queue, "sink"));
    gst_bin_add (GST_BIN (pipeline), a_thread);
    gst_element_set_state (a_thread, GST_STATE_PLAYING);
  }
}

void
mpeg2parse_have_size (GstElement * videosink, gint width, gint height)
{
  gtk_widget_set_usize (gtk_socket, width, height);
  gtk_widget_show_all (appwindow);
}

int
main (int argc, char *argv[])
{
  GstElement *src, *parse;
  GstElement *v_decode, *show, *color;
  GstElement *a_decode, *osssink;

  if (argc < 5) {
    g_print ("usage: %s dvdlocation title chapter angle\n", argv[0]);
    exit (1);
  }

  gst_init (&argc, &argv);
  gnome_init ("MPEG2 Video player", "0.0.1", argc, argv);

  /* ***** construct the main pipeline ***** */
  pipeline = GST_PIPELINE (gst_pipeline_new ("pipeline"));
  g_return_val_if_fail (pipeline != NULL, -1);

  src = gst_element_factory_make ("dvdreadsrc", "src");
  g_return_val_if_fail (src != NULL, -1);
  gtk_object_set (GTK_OBJECT (src), "location", argv[1], NULL);
  gtk_object_set (GTK_OBJECT (src), "title", atoi (argv[2]), NULL);
  gtk_object_set (GTK_OBJECT (src), "chapter", atoi (argv[3]), NULL);
  gtk_object_set (GTK_OBJECT (src), "angle", atoi (argv[4]), NULL);

  parse = gst_element_factory_make ("mpeg2parse", "parse");
  /*parse = gst_element_factory_make("mpeg1parse","parse"); */
  g_return_val_if_fail (parse != NULL, -1);

  gst_bin_add (GST_BIN (pipeline), GST_ELEMENT (src));
  gst_bin_add (GST_BIN (pipeline), GST_ELEMENT (parse));

  gst_element_link (src, "src", parse, "sink");


  /* ***** pre-construct the video thread ***** */
  v_thread = GST_ELEMENT (gst_thread_new ("v_thread"));
  g_return_val_if_fail (v_thread != NULL, -1);

  v_queue = gst_element_factory_make ("queue", "v_queue");
  g_return_val_if_fail (v_queue != NULL, -1);

  v_decode = gst_element_factory_make ("mpeg2dec", "decode_video");
  g_return_val_if_fail (v_decode != NULL, -1);

  color = gst_element_factory_make ("colorspace", "color");
  g_return_val_if_fail (color != NULL, -1);

  show = gst_element_factory_make ("xvideosink", "show");
  g_return_val_if_fail (show != NULL, -1);

  gst_bin_add (GST_BIN (v_thread), GST_ELEMENT (v_queue));
  gst_bin_add (GST_BIN (v_thread), GST_ELEMENT (v_decode));
  gst_bin_add (GST_BIN (v_thread), GST_ELEMENT (color));
  gst_bin_add (GST_BIN (v_thread), GST_ELEMENT (show));

  gst_element_link (v_queue, "src", v_decode, "sink");
  gst_element_link (v_decode, "src", color, "sink");
  gst_element_link (color, "src", show, "sink");


  /* ***** pre-construct the audio thread ***** */
  a_thread = GST_ELEMENT (gst_thread_new ("a_thread"));
  g_return_val_if_fail (a_thread != NULL, -1);

  a_queue = gst_element_factory_make ("queue", "a_queue");
  g_return_val_if_fail (a_queue != NULL, -1);

  a_decode = gst_element_factory_make ("a52dec", "decode_audio");
  g_return_val_if_fail (a_decode != NULL, -1);

  osssink = gst_element_factory_make ("osssink", "osssink");
  g_return_val_if_fail (osssink != NULL, -1);

  gst_bin_add (GST_BIN (a_thread), GST_ELEMENT (a_queue));
  gst_bin_add (GST_BIN (a_thread), GST_ELEMENT (a_decode));
  gst_bin_add (GST_BIN (a_thread), GST_ELEMENT (osssink));

  gst_element_link (a_queue, "src", a_decode, "sink");
  gst_element_link (a_decode, "src", osssink, "sink");


  /* ***** construct the GUI ***** */
  appwindow = gnome_app_new ("DVD Player", "DVD Player");

  gtk_socket = gtk_socket_new ();
  gtk_widget_show (gtk_socket);

  gnome_app_set_contents (GNOME_APP (appwindow), GTK_WIDGET (gtk_socket));

  gtk_widget_realize (gtk_socket);
  gtk_socket_steal (GTK_SOCKET (gtk_socket),
      gst_util_get_int_arg (GTK_OBJECT (show), "xid"));

  gtk_signal_connect (GTK_OBJECT (parse), "new_pad", mpeg2parse_newpad,
      pipeline);
  gtk_signal_connect (GTK_OBJECT (src), "eos", GTK_SIGNAL_FUNC (eof), NULL);
  gtk_signal_connect (GTK_OBJECT (show), "have_size", mpeg2parse_have_size,
      pipeline);

  g_print ("setting to PLAYING state\n");
  gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);

  gtk_idle_add (idle_func, pipeline);

  gdk_threads_enter ();
  gtk_main ();
  gdk_threads_leave ();

  return 0;
}