--- /dev/null
+#include <stdlib.h>
+#include <glib.h>
+#include <gtk/gtk.h>
+#include <gst/gst.h>
+#include <string.h>
+
+static GList *seekable_elements = NULL;
+
+static GstElement *pipeline;
+static GtkAdjustment *adjustment;
+static gboolean stats = FALSE;
+static guint64 duration;
+
+static guint update_id;
+
+#define UPDATE_INTERVAL 500
+
+static GstElement *
+make_cdaudio_pipeline (void)
+{
+ GstElement *cdaudio;
+
+ cdaudio = gst_element_factory_make ("cdaudio", "cdaudio");
+ g_assert (cdaudio != NULL);
+
+ seekable_elements = g_list_prepend (seekable_elements, cdaudio);
+
+ return cdaudio;
+}
+
+static gchar *
+format_value (GtkScale * scale, gdouble value)
+{
+ gint64 real;
+ gint64 seconds;
+ gint64 subseconds;
+
+ real = value * duration / 100;
+ seconds = (gint64) real / GST_SECOND;
+ subseconds = (gint64) real / (GST_SECOND / 100);
+
+ return g_strdup_printf ("%02" G_GINT64_FORMAT ":%02" G_GINT64_FORMAT ":%02"
+ G_GINT64_FORMAT, seconds / 60, seconds % 60, subseconds % 100);
+}
+
+typedef struct
+{
+ const gchar *name;
+ const GstFormat format;
+}
+seek_format;
+
+static seek_format seek_formats[] = {
+ {"tim", GST_FORMAT_TIME},
+ {"byt", GST_FORMAT_BYTES},
+ {"buf", GST_FORMAT_BUFFERS},
+ {"def", GST_FORMAT_DEFAULT},
+ {NULL, 0},
+};
+
+
+G_GNUC_UNUSED static void
+query_durations ()
+{
+ GList *walk = seekable_elements;
+
+ while (walk) {
+ GstElement *element = GST_ELEMENT (walk->data);
+ gint i = 0;
+
+ g_print ("durations %8.8s: ", GST_ELEMENT_NAME (element));
+ while (seek_formats[i].name) {
+ gboolean res;
+ gint64 value;
+ GstFormat format;
+
+ format = seek_formats[i].format;
+ res = gst_element_query (element, GST_QUERY_TOTAL, &format, &value);
+ if (res) {
+ g_print ("%s %13" G_GINT64_FORMAT " | ", seek_formats[i].name, value);
+ } else {
+ g_print ("%s %13.13s | ", seek_formats[i].name, "*NA*");
+ }
+ i++;
+ }
+ g_print (" %s\n", GST_ELEMENT_NAME (element));
+ walk = g_list_next (walk);
+ }
+}
+
+G_GNUC_UNUSED static void
+query_positions ()
+{
+ GList *walk = seekable_elements;
+
+ while (walk) {
+ GstElement *element = GST_ELEMENT (walk->data);
+ gint i = 0;
+
+ g_print ("positions %8.8s: ", GST_ELEMENT_NAME (element));
+ while (seek_formats[i].name) {
+ gboolean res;
+ gint64 value;
+ GstFormat format;
+
+ format = seek_formats[i].format;
+ res = gst_element_query (element, GST_QUERY_POSITION, &format, &value);
+ if (res) {
+ g_print ("%s %13" G_GINT64_FORMAT " | ", seek_formats[i].name, value);
+ } else {
+ g_print ("%s %13.13s | ", seek_formats[i].name, "*NA*");
+ }
+ i++;
+ }
+ g_print (" %s\n", GST_ELEMENT_NAME (element));
+ walk = g_list_next (walk);
+ }
+}
+
+static gboolean
+update_scale (gpointer data)
+{
+ GstClock *clock;
+ guint64 position = 0;
+ GstFormat format = GST_FORMAT_TIME;
+
+ duration = 0;
+ clock = gst_pipeline_get_clock (GST_PIPELINE (pipeline));
+
+ if (seekable_elements) {
+ GstElement *element = GST_ELEMENT (seekable_elements->data);
+
+ gst_element_query (element, GST_QUERY_TOTAL, &format, &duration);
+ gst_element_query (element, GST_QUERY_POSITION, &format, &position);
+ }
+
+ if (stats) {
+ if (clock)
+ g_print ("clock: %13" G_GUINT64_FORMAT " (%s)\n",
+ position, gst_object_get_name (GST_OBJECT (clock)));
+ query_durations ();
+ query_positions ();
+ }
+ if (duration > 0) {
+ gtk_adjustment_set_value (adjustment, position * 100.0 / duration);
+ }
+
+ return TRUE;
+}
+
+static gboolean
+start_seek (GtkWidget * widget, GdkEventButton * event, gpointer user_data)
+{
+ gst_element_set_state (pipeline, GST_STATE_PAUSED);
+ g_timeout_remove (update_id);
+
+ return FALSE;
+}
+
+static gboolean
+stop_seek (GtkWidget * widget, GdkEventButton * event, gpointer user_data)
+{
+ gint64 real = gtk_range_get_value (GTK_RANGE (widget)) * duration / 100;
+ gboolean res;
+ GstEvent *s_event;
+ GList *walk = seekable_elements;
+
+ while (walk) {
+ GstElement *seekable = GST_ELEMENT (walk->data);
+
+ g_print ("seek to %" G_GINT64_FORMAT " on element %s\n", real,
+ GST_ELEMENT_NAME (seekable));
+ s_event =
+ gst_event_new_seek (GST_FORMAT_TIME | GST_SEEK_METHOD_SET |
+ GST_SEEK_FLAG_FLUSH, real);
+
+ res = gst_element_send_event (seekable, s_event);
+
+ walk = g_list_next (walk);
+ }
+
+ gst_element_set_state (pipeline, GST_STATE_PLAYING);
+ update_id =
+ g_timeout_add (UPDATE_INTERVAL, (GtkFunction) update_scale, pipeline);
+
+ return FALSE;
+}
+
+static void
+play_cb (GtkButton * button, gpointer data)
+{
+ GstState state;
+
+ gst_element_get_state (pipeline, &state, NULL, GST_CLOCK_TIME_NONE);
+ if (state != GST_STATE_PLAYING) {
+ gst_element_set_state (pipeline, GST_STATE_PLAYING);
+ update_id =
+ g_timeout_add (UPDATE_INTERVAL, (GtkFunction) update_scale, pipeline);
+ }
+}
+
+static void
+pause_cb (GtkButton * button, gpointer data)
+{
+ GstState state;
+
+ gst_element_get_state (pipeline, &state, NULL, GST_CLOCK_TIME_NONE);
+ if (state != GST_STATE_PAUSED) {
+ gst_element_set_state (pipeline, GST_STATE_PAUSED);
+ g_timeout_remove (update_id);
+ }
+}
+
+static void
+stop_cb (GtkButton * button, gpointer data)
+{
+ GstState state;
+
+ gst_element_get_state (pipeline, &state, NULL, GST_CLOCK_TIME_NONE);
+ if (state != GST_STATE_READY) {
+ gst_element_set_state (pipeline, GST_STATE_READY);
+ g_timeout_remove (update_id);
+ }
+}
+
+int
+main (int argc, char **argv)
+{
+ GtkWidget *window, *hbox, *vbox,
+ *play_button, *pause_button, *stop_button, *hscale;
+ struct poptOption options[] = {
+ {"stats", 's', POPT_ARG_NONE | POPT_ARGFLAG_STRIP, &stats, 0,
+ "Show element stats", NULL},
+ POPT_TABLEEND
+ };
+
+ gst_init_with_popt_table (&argc, &argv, options);
+ gtk_init (&argc, &argv);
+
+ pipeline = make_cdaudio_pipeline ();
+
+ g_signal_connect (pipeline, "deep_notify",
+ G_CALLBACK (gst_object_default_deep_notify), NULL);
+
+ /* initialize gui elements ... */
+ window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+ hbox = gtk_hbox_new (FALSE, 0);
+ vbox = gtk_vbox_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");
+
+ adjustment =
+ GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.00, 100.0, 0.1, 1.0, 1.0));
+ hscale = gtk_hscale_new (adjustment);
+ gtk_scale_set_digits (GTK_SCALE (hscale), 2);
+ gtk_range_set_update_policy (GTK_RANGE (hscale), GTK_UPDATE_CONTINUOUS);
+
+ g_signal_connect (GTK_OBJECT (hscale),
+ "button_press_event", G_CALLBACK (start_seek), pipeline);
+ g_signal_connect (GTK_OBJECT (hscale),
+ "button_release_event", G_CALLBACK (stop_seek), pipeline);
+ g_signal_connect (GTK_OBJECT (hscale),
+ "format_value", G_CALLBACK (format_value), pipeline);
+
+ /* do the packing stuff ... */
+ gtk_window_set_default_size (GTK_WINDOW (window), 96, 96);
+ gtk_container_add (GTK_CONTAINER (window), vbox);
+ gtk_container_add (GTK_CONTAINER (vbox), 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 (vbox), 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 (window), "delete_event", gtk_main_quit, NULL);
+
+ /* show the gui. */
+ gtk_widget_show_all (window);
+
+ gtk_main ();
+
+ gst_element_set_state (pipeline, GST_STATE_NULL);
+
+ return 0;
+}
projects / mafwsubrenderer / blobdiff