mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-05 17:09:48 +00:00
351d186581
Original commit message from CVS: * changed speed to be loop-based, work with floats as well as gint8 and gint16, mono only now though * added speed demo app in the test directory. try it, it's really neat. * fixed minor bugs in passthrough and gstaudio.h. don't worry, it does build ;)
67 lines
2.5 KiB
C
67 lines
2.5 KiB
C
#include <gtk/gtk.h>
|
|
#include <gst/gst.h>
|
|
|
|
void set_speed (GtkAdjustment *adj, gpointer data)
|
|
{
|
|
GstElement *speed = GST_ELEMENT(data);
|
|
gtk_object_set(GTK_OBJECT(speed), "speed", adj->value, NULL);
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
GtkWidget *window, *vbox, *hscale, *button;
|
|
GstElement *disksrc, *mad, *stereo2mono, *speed, *osssink, *pipeline;
|
|
|
|
gst_init (&argc, &argv);
|
|
gtk_init (&argc, &argv);
|
|
|
|
if (argc!=2) {
|
|
g_print("usage: %s <your.mp3>\n", argv[0]);
|
|
exit(-1);
|
|
}
|
|
|
|
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
|
|
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,
|
|
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");
|
|
gtk_container_add(GTK_CONTAINER(window), vbox);
|
|
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);
|
|
|
|
disksrc = gst_elementfactory_make("disksrc", "disksrc");
|
|
mad = gst_elementfactory_make("mad", "mad");
|
|
stereo2mono = gst_elementfactory_make("stereo2mono", "stereo2mono");
|
|
speed = gst_elementfactory_make("speed", "speed");
|
|
osssink = gst_elementfactory_make("osssink", "osssink");
|
|
gtk_object_set(GTK_OBJECT(osssink), "fragment", 0x00180008, NULL);
|
|
|
|
gtk_signal_connect(GTK_OBJECT(gtk_range_get_adjustment(GTK_RANGE(hscale))),
|
|
"value_changed", set_speed, speed);
|
|
|
|
pipeline = gst_pipeline_new("app");
|
|
gst_bin_add(GST_BIN(pipeline), disksrc);
|
|
gst_bin_add(GST_BIN(pipeline), mad);
|
|
gst_bin_add(GST_BIN(pipeline), stereo2mono);
|
|
gst_bin_add(GST_BIN(pipeline), speed);
|
|
gst_bin_add(GST_BIN(pipeline), osssink);
|
|
gst_element_connect(disksrc, "src", mad, "sink");
|
|
gst_element_connect(mad, "src", stereo2mono, "sink");
|
|
gst_element_connect(stereo2mono, "src", speed, "sink");
|
|
gst_element_connect(speed, "src", osssink, "sink");
|
|
gtk_object_set(GTK_OBJECT(disksrc), "location", argv[1], NULL);
|
|
|
|
gst_element_set_state(pipeline, GST_STATE_PLAYING);
|
|
|
|
gtk_widget_show(window);
|
|
gtk_idle_add((GtkFunction)gst_bin_iterate, pipeline);
|
|
|
|
gtk_main();
|
|
}
|