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-rw-r--r--examples/seeking/Makefile.am2
-rw-r--r--examples/seeking/cdparanoia.c168
-rw-r--r--examples/seeking/cdplayer.c310
3 files changed, 479 insertions, 1 deletions
diff --git a/examples/seeking/Makefile.am b/examples/seeking/Makefile.am
index b1dac9c4..bb427f7b 100644
--- a/examples/seeking/Makefile.am
+++ b/examples/seeking/Makefile.am
@@ -1,4 +1,4 @@
-examples = seek spider_seek
+examples = seek spider_seek cdplayer cdparanoia
noinst_PROGRAMS = $(examples)
diff --git a/examples/seeking/cdparanoia.c b/examples/seeking/cdparanoia.c
new file mode 100644
index 00000000..b735b4ab
--- /dev/null
+++ b/examples/seeking/cdparanoia.c
@@ -0,0 +1,168 @@
+#include <stdlib.h>
+#include <gst/gst.h>
+#include <string.h>
+
+static void
+get_track_info (GstElement *cdparanoia)
+{
+ GstFormat track_format;
+ gint64 total_tracks, total_time;
+ GstPad *pad;
+ const GstFormat *formats;
+ gint i;
+ gint64 time_count = 0;
+
+ track_format = gst_format_get_by_nick ("track");
+ g_assert (track_format != 0);
+
+ pad = gst_element_get_pad (cdparanoia, "src");
+ formats = gst_pad_get_formats (pad);
+
+ /* we loop over all supported formats and report the total
+ * number of them */
+ while (*formats) {
+ const GstFormatDefinition *definition;
+ gint64 total;
+ gboolean res;
+
+ definition = gst_format_get_details (*formats);
+
+ res = gst_pad_query (pad, GST_PAD_QUERY_TOTAL,
+ (GstFormat *)formats, &total);
+ if (res) {
+ if (*formats == GST_FORMAT_TIME)
+ g_print ("%s total: %lld:%lld\n", definition->nick, total/60, total%60);
+ else
+ g_print ("%s total: %lld\n", definition->nick, total);
+
+ if (*formats == track_format)
+ total_tracks = total;
+ else if (*formats == GST_FORMAT_TIME)
+ total_time = total;
+ }
+ else
+ g_print ("failed to get %s total\n", definition->nick);
+
+ formats++;
+ }
+
+ /* then we loop over all the tracks to get more info.
+ * since pad_convert always works from 0, the time from track 1 needs
+ * to be substracted from track 2 */
+ for (i = 0; i <= total_tracks; i++) {
+ gint64 time;
+ gboolean res;
+
+ if (i < total_tracks) {
+ GstFormat format;
+
+ format = GST_FORMAT_TIME;
+ res = gst_pad_convert (pad, track_format, i,
+ &format, &time);
+ }
+ else {
+ time = total_time;
+ res = TRUE;
+ }
+
+ if (res) {
+ /* for the first track (i==0) we wait until we have the
+ * time of the next track */
+ if (i > 0) {
+ gint64 length = time - time_count;
+
+ g_print ("track %d: %lld:%02lld -> %lld:%02lld, length: %lld:%02lld\n", i-1,
+ time_count/60, time_count%60,
+ time/60, time%60,
+ length/60, length%60);
+ }
+ }
+ else {
+ g_print ("could not get time for track %d\n", i);
+ }
+
+ time_count = time;
+ }
+}
+
+int
+main (int argc, char **argv)
+{
+ GstElement *pipeline;
+ GstElement *cdparanoia;
+ GstElement *osssink;
+ GstPad *pad;
+ GstFormat track_format;
+ GstEvent *event;
+ gint count;
+
+ gst_init (&argc, &argv);
+
+ pipeline = gst_pipeline_new ("pipeline");
+
+ cdparanoia = gst_element_factory_make ("cdparanoia", "cdparanoia");
+ g_assert (cdparanoia);
+ g_object_set (G_OBJECT (cdparanoia), "paranoia_mode", 0, NULL);
+
+ osssink = gst_element_factory_make ("osssink", "osssink");
+ g_assert (osssink);
+
+ gst_bin_add (GST_BIN (pipeline), cdparanoia);
+ gst_bin_add (GST_BIN (pipeline), osssink);
+
+ gst_element_connect_pads (cdparanoia, "src", osssink, "sink");
+
+ g_signal_connect (G_OBJECT (pipeline), "deep_notify",
+ G_CALLBACK (gst_element_default_deep_notify), NULL);
+
+ gst_element_set_state (pipeline, GST_STATE_PAUSED);
+
+ /* now we go into probe mode */
+ get_track_info (cdparanoia);
+
+ track_format = gst_format_get_by_nick ("track");
+ g_assert (track_format != 0);
+
+ pad = gst_element_get_pad (cdparanoia, "src");
+ g_assert (pad);
+
+ g_print ("playing from track 3\n");
+ /* seek to track3 */
+ event = gst_event_new_seek (track_format |
+ GST_SEEK_METHOD_SET |
+ GST_SEEK_FLAG_FLUSH,
+ 3);
+
+ gst_pad_send_event (pad, event);
+ gst_element_set_state (pipeline, GST_STATE_PLAYING);
+
+ count = 0;
+ while (gst_bin_iterate (GST_BIN (pipeline))) {
+ if (count++ > 500)
+ break;
+ }
+ gst_element_set_state (pipeline, GST_STATE_PAUSED);
+
+ g_print ("playing track 3 only\n");
+ /* seek to track3 */
+ event = gst_event_new_segment_seek (track_format |
+ GST_SEEK_METHOD_SET |
+ GST_SEEK_FLAG_FLUSH,
+ 3, 4);
+ gst_pad_send_event (pad, event);
+ gst_element_set_state (pipeline, GST_STATE_PLAYING);
+
+ count = 0;
+ while (gst_bin_iterate (GST_BIN (pipeline))) {
+ if (count++ > 500)
+ break;
+ }
+
+ /* shutdown everything again */
+ gst_element_set_state (pipeline, GST_STATE_NULL);
+
+ gst_buffer_print_stats();
+ gst_event_print_stats();
+
+ return 0;
+}
diff --git a/examples/seeking/cdplayer.c b/examples/seeking/cdplayer.c
new file mode 100644
index 00000000..a833c67a
--- /dev/null
+++ b/examples/seeking/cdplayer.c
@@ -0,0 +1,310 @@
+#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 SOURCE "gnomevfssrc"
+#define SOURCE "filesrc"
+
+#define UPDATE_INTERVAL 500
+
+static GstElement*
+make_cdaudio_pipeline (gboolean thread)
+{
+ GstElement *pipeline;
+ GstElement *cdaudio;
+
+ if (thread) {
+ pipeline = gst_thread_new ("app");
+ }
+ else {
+ pipeline = gst_pipeline_new ("app");
+ }
+
+ cdaudio = gst_element_factory_make ("cdaudio", "cdaudio");
+
+ gst_bin_add (GST_BIN (pipeline), cdaudio);
+
+ seekable_elements = g_list_prepend (seekable_elements, cdaudio);
+
+ return pipeline;
+}
+
+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 ("%02lld:%02lld:%02lld",
+ 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 },
+ { "unt", GST_FORMAT_UNITS },
+ { "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_PAD_QUERY_TOTAL, &format, &value);
+ if (res) {
+ g_print ("%s %13lld | ", 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_PAD_QUERY_POSITION, &format, &value);
+ if (res) {
+ g_print ("%s %13lld | ", 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;
+ GstFormat format = GST_FORMAT_TIME;
+
+ duration = 0;
+ clock = gst_bin_get_clock (GST_BIN (pipeline));
+
+ if (seekable_elements) {
+ GstElement *element = GST_ELEMENT (seekable_elements->data);
+ gst_element_query (element, GST_PAD_QUERY_TOTAL, &format, &duration);
+ }
+ position = gst_clock_get_time (clock);
+
+ if (stats) {
+ g_print ("clock: %13llu (%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
+iterate (gpointer data)
+{
+ gboolean res = TRUE;
+
+ res = gst_bin_iterate (GST_BIN (data));
+ if (!res) {
+ gtk_timeout_remove (update_id);
+ g_print ("stopping iterations\n");
+ }
+ return res;
+}
+
+static gboolean
+start_seek (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
+{
+ gst_element_set_state (pipeline, GST_STATE_PAUSED);
+ gtk_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 %lld 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);
+ if (!GST_FLAG_IS_SET (pipeline, GST_BIN_SELF_SCHEDULABLE))
+ gtk_idle_add ((GtkFunction) iterate, pipeline);
+ update_id = gtk_timeout_add (UPDATE_INTERVAL, (GtkFunction) update_scale, pipeline);
+
+ return FALSE;
+}
+
+static void
+play_cb (GtkButton * button, gpointer data)
+{
+ if (gst_element_get_state (pipeline) != GST_STATE_PLAYING) {
+ gst_element_set_state (pipeline, GST_STATE_PLAYING);
+ if (!GST_FLAG_IS_SET (pipeline, GST_BIN_SELF_SCHEDULABLE))
+ gtk_idle_add ((GtkFunction) iterate, pipeline);
+ update_id = gtk_timeout_add (UPDATE_INTERVAL, (GtkFunction) update_scale, pipeline);
+ }
+}
+
+static void
+pause_cb (GtkButton * button, gpointer data)
+{
+ if (gst_element_get_state (pipeline) != GST_STATE_PAUSED) {
+ gst_element_set_state (pipeline, GST_STATE_PAUSED);
+ gtk_timeout_remove (update_id);
+ }
+}
+
+static void
+stop_cb (GtkButton * button, gpointer data)
+{
+ if (gst_element_get_state (pipeline) != GST_STATE_READY) {
+ gst_element_set_state (pipeline, GST_STATE_READY);
+ gtk_timeout_remove (update_id);
+ }
+}
+
+int
+main (int argc, char **argv)
+{
+ GtkWidget *window, *hbox, *vbox,
+ *play_button, *pause_button, *stop_button,
+ *hscale;
+ gboolean threaded = FALSE;
+ struct poptOption options[] = {
+ {"threaded", 't', POPT_ARG_NONE|POPT_ARGFLAG_STRIP, &threaded, 0,
+ "Run the pipeline in a toplevel thread", NULL},
+ {"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 (threaded);
+
+ /* 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);
+
+ gtk_signal_connect(GTK_OBJECT(hscale),
+ "button_press_event", G_CALLBACK (start_seek), pipeline);
+ gtk_signal_connect(GTK_OBJECT(hscale),
+ "button_release_event", G_CALLBACK (stop_seek), pipeline);
+ gtk_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_buffer_print_stats();
+ gst_event_print_stats();
+
+ return 0;
+}
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