diff options
| -rw-r--r-- | gst/speed/Makefile.am | 8 | ||||
| -rw-r--r-- | gst/speed/demo-mp3.c | 67 |
2 files changed, 75 insertions, 0 deletions
diff --git a/gst/speed/Makefile.am b/gst/speed/Makefile.am index 35aed207..c20b1d20 100644 --- a/gst/speed/Makefile.am +++ b/gst/speed/Makefile.am @@ -6,3 +6,11 @@ libgstspeed_la_SOURCES = gstspeed.c libgstspeed_la_CFLAGS = $(GST_CFLAGS) noinst_HEADERS = gstspeed.h filter.func + +if HAVE_GTK +noinst_PROGRAMS = demo-mp3 +endif + +demo_mp3_SOURCES = demo-mp3.c +demo_mp3_CFLAGS = $(GST_CFLAGS) $(GTK_CFLAGS) +demo_mp3_LDFLAGS = $(GST_LIBS) $(GTK_LIBS) diff --git a/gst/speed/demo-mp3.c b/gst/speed/demo-mp3.c new file mode 100644 index 00000000..67650811 --- /dev/null +++ b/gst/speed/demo-mp3.c @@ -0,0 +1,67 @@ +#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 *filesrc, *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); + + filesrc = gst_elementfactory_make("filesrc", "filesrc"); + 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), filesrc); + 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(filesrc, "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(filesrc), "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(); +} |