--- /dev/null
+#include <gtk/gtk.h>
+#include <gst/gst.h>
+
+void play (GtkButton *button, gpointer data)
+{
+ gtk_signal_emit_by_name(GTK_OBJECT(data), "play");
+}
+
+void reset (GtkButton *button, gpointer data)
+{
+ gtk_signal_emit_by_name(GTK_OBJECT(data), "reset");
+}
+
+int main(int argc, char **argv)
+{
+ guint channels;
+ GtkWidget *window, *vbox, *play_button, *reset_button, *quit_button;
+ GstElement *filesrc, *mad, *stereo2mono, *pod, *osssink, *pipeline;
+
+ gst_init (&argc, &argv);
+ gtk_init (&argc, &argv);
+
+ if (argc!=2) {
+ g_print("usage: %s <mp3-filename>\n", argv[0]);
+ exit(-1);
+ }
+
+ filesrc = gst_elementfactory_make("filesrc", "filesrc");
+ mad = gst_elementfactory_make("mad", "mad");
+ pod = gst_elementfactory_make("playondemand", "playondemand");
+ osssink = gst_elementfactory_make("osssink", "osssink");
+
+ gtk_object_set(GTK_OBJECT(filesrc), "location", argv[1], NULL);
+ gtk_object_set(GTK_OBJECT(osssink), "fragment", 0x00180008, NULL);
+ gtk_object_get(GTK_OBJECT(osssink), "channels", &channels, NULL);
+
+ pipeline = gst_pipeline_new("app");
+
+ gst_bin_add(GST_BIN(pipeline), filesrc);
+ gst_bin_add(GST_BIN(pipeline), mad);
+ gst_bin_add(GST_BIN(pipeline), pod);
+ gst_bin_add(GST_BIN(pipeline), osssink);
+
+ gst_element_connect(filesrc, "src", mad, "sink");
+ gst_element_connect(pod, "src", osssink, "sink");
+
+ if (channels != 2) {
+ gst_element_connect(mad, "src", pod, "sink");
+ } else {
+ stereo2mono = gst_elementfactory_make("stereo2mono", "stereo2mono");
+ gst_bin_add(GST_BIN(pipeline), stereo2mono);
+ gst_element_connect(mad, "src", stereo2mono, "sink");
+ gst_element_connect(stereo2mono, "src", pod, "sink");
+ }
+
+ gst_element_set_state(pipeline, GST_STATE_PLAYING);
+
+ /* initialize gui elements ... */
+ window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+ vbox = gtk_vbox_new(FALSE, 0);
+ play_button = gtk_button_new_with_label("play");
+ reset_button = gtk_button_new_with_label("reset");
+ quit_button = gtk_button_new_with_label("quit");
+
+ /* do the packing stuff ... */
+ gtk_window_set_default_size(GTK_WINDOW(window), 96, 96);
+ gtk_container_add(GTK_CONTAINER(window), vbox);
+ gtk_box_pack_start(GTK_BOX(vbox), play_button, FALSE, FALSE, 2);
+ gtk_box_pack_start(GTK_BOX(vbox), reset_button, FALSE, FALSE, 2);
+ gtk_box_pack_start(GTK_BOX(vbox), quit_button, FALSE, FALSE, 2);
+
+ /* connect things ... */
+ gtk_signal_connect(GTK_OBJECT(play_button), "clicked", play, pod);
+ gtk_signal_connect(GTK_OBJECT(reset_button), "clicked", reset, pod);
+ gtk_signal_connect(GTK_OBJECT(quit_button), "clicked", gtk_main_quit, NULL);
+
+ /* show the gui. */
+ gtk_widget_show(play_button);
+ gtk_widget_show(reset_button);
+ gtk_widget_show(quit_button);
+ gtk_widget_show(vbox);
+ gtk_widget_show(window);
+ gtk_idle_add((GtkFunction)gst_bin_iterate, pipeline);
+
+ gtk_main();
+}