#include #include #include static GstElement *src, *mad, *osssink, *pipeline; static void set_seek (GtkAdjustment *adj, gpointer data) { g_print ("%f\n", adj->value); gst_pad_send_event (gst_element_get_pad (mad, "src"), gst_event_new_seek (GST_SEEK_BYTEOFFSET_SET, adj->value*1000, TRUE)); } static void play_cb (GtkButton * button, gpointer data) { GstElement *pipeline = GST_ELEMENT (data); gst_element_set_state (pipeline, GST_STATE_PLAYING); gtk_idle_add ((GtkFunction) gst_bin_iterate, pipeline); } static void pause_cb (GtkButton * button, gpointer data) { GstElement *pipeline = GST_ELEMENT (data); gst_element_set_state (pipeline, GST_STATE_PAUSED); } static void stop_cb (GtkButton * button, gpointer data) { GstElement *pipeline = GST_ELEMENT (data); gst_element_set_state (pipeline, GST_STATE_READY); } int main (int argc, char **argv) { guint channels; GtkWidget *window, *hbox, *play_button, *pause_button, *stop_button, *quit_button, *hscale; gst_init (&argc, &argv); gtk_init (&argc, &argv); if (argc != 2) { g_print ("usage: %s \n", argv[0]); exit (-1); } src = gst_element_factory_make ("filesrc", "filesrc"); mad = gst_element_factory_make ("mad", "mad"); osssink = gst_element_factory_make ("osssink", "osssink"); g_object_set (G_OBJECT (src), "location", argv[1], NULL); g_object_set (G_OBJECT (osssink), "fragment", 0x00180008, NULL); g_object_get (G_OBJECT (osssink), "channels", &channels, NULL); pipeline = gst_pipeline_new ("app"); gst_bin_add (GST_BIN (pipeline), src); gst_bin_add (GST_BIN (pipeline), mad); gst_bin_add (GST_BIN (pipeline), osssink); gst_element_connect (src, mad); gst_element_connect (mad, osssink); /* initialize gui elements ... */ window = gtk_window_new (GTK_WINDOW_TOPLEVEL); hbox = gtk_hbox_new (FALSE, 0); play_button = gtk_button_new_with_label ("play"); pause_button = gtk_button_new_with_label ("pause"); stop_button = gtk_button_new_with_label ("stop"); quit_button = gtk_button_new_with_label ("quit"); hscale = gtk_hscale_new (GTK_ADJUSTMENT (gtk_adjustment_new (1.0, 0.01, 100.0, 0.1, 0.0, 0.0))); gtk_scale_set_digits (GTK_SCALE (hscale), 2); gtk_range_set_update_policy (GTK_RANGE (hscale), GTK_UPDATE_CONTINUOUS); gtk_signal_connect(GTK_OBJECT(gtk_range_get_adjustment(GTK_RANGE(hscale))), "value_changed", G_CALLBACK (set_seek), osssink); /* do the packing stuff ... */ gtk_window_set_default_size (GTK_WINDOW (window), 96, 96); gtk_container_add (GTK_CONTAINER (window), hbox); gtk_box_pack_start (GTK_BOX (hbox), play_button, FALSE, FALSE, 2); gtk_box_pack_start (GTK_BOX (hbox), pause_button, FALSE, FALSE, 2); gtk_box_pack_start (GTK_BOX (hbox), stop_button, FALSE, FALSE, 2); gtk_box_pack_start (GTK_BOX (hbox), quit_button, FALSE, FALSE, 2); gtk_box_pack_start (GTK_BOX (hbox), hscale, TRUE, TRUE, 2); /* connect things ... */ g_signal_connect (G_OBJECT (play_button), "clicked", G_CALLBACK (play_cb), pipeline); g_signal_connect (G_OBJECT (pause_button), "clicked", G_CALLBACK (pause_cb), pipeline); g_signal_connect (G_OBJECT (stop_button), "clicked", G_CALLBACK (stop_cb), pipeline); g_signal_connect (G_OBJECT (quit_button), "clicked", gtk_main_quit, NULL); /* show the gui. */ gtk_widget_show (play_button); gtk_widget_show (pause_button); gtk_widget_show (stop_button); gtk_widget_show (quit_button); gtk_widget_show (hscale); gtk_widget_show (hbox); gtk_widget_show (window); gtk_main (); return 0; }