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-rw-r--r--gst/speed/demo-mp3.c58
-rw-r--r--gst/speed/gstspeed.c85
2 files changed, 128 insertions, 15 deletions
diff --git a/gst/speed/demo-mp3.c b/gst/speed/demo-mp3.c
index c61f15ef..d2144cf3 100644
--- a/gst/speed/demo-mp3.c
+++ b/gst/speed/demo-mp3.c
@@ -25,6 +25,8 @@
#include <gtk/gtk.h>
#include <gst/gst.h>
+static GtkWidget *poslabel; /* NULL */
+
void
set_speed (GtkAdjustment * adj, gpointer data)
{
@@ -33,10 +35,34 @@ set_speed (GtkAdjustment * adj, gpointer data)
g_object_set (speed, "speed", adj->value, NULL);
}
+static gboolean
+time_tick_cb (GstElement * audiosink)
+{
+ GstFormat format = GST_FORMAT_TIME;
+ guint64 total, pos;
+
+ if (gst_element_query (audiosink, GST_QUERY_TOTAL, &format, &total)
+ && gst_element_query (audiosink, GST_QUERY_POSITION, &format, &pos)) {
+ guint t_min, t_sec, p_min, p_sec;
+ gchar *s;
+
+ t_min = (guint) (total / (GST_SECOND * 60));
+ t_sec = (guint) ((total % (GST_SECOND * 60)) / GST_SECOND);
+ p_min = (guint) (pos / (GST_SECOND * 60));
+ p_sec = (guint) ((pos % (GST_SECOND * 60)) / GST_SECOND);
+
+ s = g_strdup_printf ("%u:%02u / %u:%02u", p_min, p_sec, t_min, t_sec);
+ gtk_label_set_text (GTK_LABEL (poslabel), s);
+ g_free (s);
+ }
+
+ return TRUE; /* call again */
+}
+
int
main (int argc, char **argv)
{
- GtkWidget *window, *vbox, *hscale, *button;
+ GtkWidget *window, *vbox, *hscale, *button, *hbbox;
GstElement *filesrc, *mad, *audioconvert, *speed, *audiosink, *pipeline;
gst_init (&argc, &argv);
@@ -48,20 +74,23 @@ main (int argc, char **argv)
}
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+ g_signal_connect (window, "delete-event", G_CALLBACK (gtk_main_quit), NULL);
gtk_window_set_default_size (GTK_WINDOW (window), 400, 80);
vbox = gtk_vbox_new (FALSE, 0);
- gtk_widget_show (vbox);
- hscale = gtk_hscale_new (GTK_ADJUSTMENT (gtk_adjustment_new (1.0, 0.01, 4.0,
+ gtk_container_set_border_width (GTK_CONTAINER (vbox), 6);
+ hscale = gtk_hscale_new (GTK_ADJUSTMENT (gtk_adjustment_new (1.0, 0.1, 4.0,
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);
- button = gtk_button_new_with_label ("quit");
+ hbbox = gtk_hbutton_box_new ();
+ button = gtk_button_new_from_stock (GTK_STOCK_QUIT);
gtk_container_add (GTK_CONTAINER (window), vbox);
+ gtk_container_add (GTK_CONTAINER (hbbox), button);
+ poslabel = gtk_label_new (NULL);
+ gtk_box_pack_start (GTK_BOX (vbox), poslabel, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX (vbox), hscale, TRUE, TRUE, 2);
- gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 2);
- gtk_widget_show (hscale);
- gtk_signal_connect (GTK_OBJECT (button), "clicked", gtk_main_quit, NULL);
- gtk_widget_show (button);
+ gtk_box_pack_start (GTK_BOX (vbox), hbbox, FALSE, FALSE, 6);
+ g_signal_connect (button, "clicked", G_CALLBACK (gtk_main_quit), NULL);
filesrc = gst_element_factory_make ("filesrc", "filesrc");
mad = gst_element_factory_make ("mad", "mad");
@@ -69,8 +98,8 @@ main (int argc, char **argv)
speed = gst_element_factory_make ("speed", "speed");
audiosink = gst_element_factory_make (DEFAULT_AUDIOSINK, "audiosink");
- gtk_signal_connect (GTK_OBJECT (gtk_range_get_adjustment (GTK_RANGE
- (hscale))), "value_changed", G_CALLBACK (set_speed), speed);
+ g_signal_connect (gtk_range_get_adjustment (GTK_RANGE (hscale)),
+ "value_changed", G_CALLBACK (set_speed), speed);
pipeline = gst_pipeline_new ("app");
gst_bin_add_many (GST_BIN (pipeline), filesrc, mad, audioconvert, speed,
@@ -80,10 +109,15 @@ main (int argc, char **argv)
gst_element_set_state (pipeline, GST_STATE_PLAYING);
- gtk_widget_show (window);
- gtk_idle_add ((GtkFunction) gst_bin_iterate, pipeline);
+ gtk_widget_show_all (window);
+
+ g_idle_add ((GSourceFunc) gst_bin_iterate, pipeline);
+ g_timeout_add (200, (GSourceFunc) time_tick_cb, audiosink);
gtk_main ();
+ gst_element_set_state (pipeline, GST_STATE_NULL);
+ gst_object_unref (GST_OBJECT (pipeline));
+
return 0;
}
diff --git a/gst/speed/gstspeed.c b/gst/speed/gstspeed.c
index 79b39f85..f784c105 100644
--- a/gst/speed/gstspeed.c
+++ b/gst/speed/gstspeed.c
@@ -169,6 +169,80 @@ gst_speed_get_type (void)
return speed_type;
}
+static const GstQueryType *
+speed_get_query_types (GstPad * pad)
+{
+ static const GstQueryType src_query_types[] = {
+ GST_QUERY_TOTAL,
+ GST_QUERY_POSITION,
+ 0
+ };
+
+ return src_query_types;
+}
+
+static gboolean
+speed_src_query (GstPad * pad, GstQueryType type,
+ GstFormat * format, gint64 * val)
+{
+ gboolean res = TRUE;
+ GstSpeed *filter;
+
+ filter = GST_SPEED (gst_pad_get_parent (pad));
+
+ switch (type) {
+ case GST_QUERY_POSITION:
+ case GST_QUERY_TOTAL:
+ {
+ switch (*format) {
+ case GST_FORMAT_BYTES:
+ case GST_FORMAT_DEFAULT:
+ case GST_FORMAT_TIME:
+ {
+ gint64 peer_value;
+ const GstFormat *peer_formats;
+
+ res = FALSE;
+
+ peer_formats = gst_pad_get_formats (GST_PAD_PEER (filter->sinkpad));
+
+ while (peer_formats && *peer_formats && !res) {
+
+ GstFormat peer_format = *peer_formats;
+
+ /* do the probe */
+ if (gst_pad_query (GST_PAD_PEER (filter->sinkpad), type,
+ &peer_format, &peer_value)) {
+ GstFormat conv_format;
+
+ /* convert to TIME */
+ conv_format = GST_FORMAT_TIME;
+ res = gst_pad_convert (filter->sinkpad,
+ peer_format, peer_value, &conv_format, val);
+
+ /* adjust for speed factor */
+ *val = (gint64) (((gdouble) * val) / filter->speed);
+
+ /* and to final format */
+ res &= gst_pad_convert (pad, GST_FORMAT_TIME, *val, format, val);
+ }
+ peer_formats++;
+ }
+ break;
+ }
+ default:
+ res = FALSE;
+ break;
+ }
+ break;
+ }
+ default:
+ res = FALSE;
+ break;
+ }
+ return res;
+}
+
static void
speed_base_init (gpointer g_class)
{
@@ -214,6 +288,8 @@ speed_init (GstSpeed * filter)
(&gst_speed_src_template), "src");
gst_pad_set_link_function (filter->srcpad, speed_link);
gst_pad_set_getcaps_function (filter->srcpad, gst_pad_proxy_getcaps);
+ gst_pad_set_query_type_function (filter->srcpad, speed_get_query_types);
+ gst_pad_set_query_function (filter->srcpad, speed_src_query);
gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
filter->offset = 0;
@@ -307,12 +383,15 @@ speed_chain (GstPad * pad, GstData * data)
{
gint64 timestamp, offset;
+ if (gst_event_discont_get_value (GST_EVENT (data), GST_FORMAT_TIME,
+ &timestamp)) {
+ filter->timestamp = timestamp;
+ filter->offset = timestamp * filter->rate / GST_SECOND;
+ }
if (gst_event_discont_get_value (GST_EVENT (data), GST_FORMAT_BYTES,
- &timestamp)
- && gst_event_discont_get_value (GST_EVENT (data), GST_FORMAT_BYTES,
&offset)) {
filter->offset = offset;
- filter->timestamp = timestamp;
+ filter->timestamp = offset * GST_SECOND / filter->rate;
}
break;
}
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-02 11:43:58 +0000