don't know if this works, someone with libdvdread please try this out

Original commit message from CVS:
don't know if this works, someone with libdvdread please try this out

ext/dvdread/Makefile.am

@@ -11,4 +11,12 @@ libdvdsrc_la_CFLAGS = $(GST_CFLAGS)
 
 noinst_HEADERS = dvdsrc.h
 
+if HAVE_GTK
+noinst_PROGRAMS = dvdplay
+endif
+
+dvdplay_SOURCES = dvdplay.c
+dvdplay_CFLAGS  = $(GST_CFLAGS) $(GTK_CFLAGS)
+dvdplay_LDFLAGS = $(GST_LIBS) $(GTK_LIBS)
+
 EXTRA_DIST = README

ext/dvdread/dvdplay.c

@@ -0,0 +1,147 @@
+#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_connect(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_connect(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_elementfactory_make("dvdsrc","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_elementfactory_make("mpeg2parse","parse");
+  //parse = gst_elementfactory_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_connect(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_elementfactory_make("queue","v_queue");
+  g_return_val_if_fail(v_queue != NULL, -1);
+
+  v_decode = gst_elementfactory_make("mpeg2dec","decode_video");
+  g_return_val_if_fail(v_decode != NULL, -1);
+
+  color = gst_elementfactory_make("colorspace","color");
+  g_return_val_if_fail(color != NULL, -1);
+
+  show = gst_elementfactory_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_connect(v_queue,"src",v_decode,"sink");
+  gst_element_connect(v_decode,"src",color,"sink");
+  gst_element_connect(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_elementfactory_make("queue","a_queue");
+  g_return_val_if_fail(a_queue != NULL, -1);
+  
+  a_decode = gst_elementfactory_make("a52dec","decode_audio");
+  g_return_val_if_fail(a_decode != NULL, -1);
+
+  osssink = gst_elementfactory_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_connect(a_queue,"src",a_decode,"sink");
+  gst_element_connect(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;
+}