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-rw-r--r--gst/spectrum/Makefile.am8
-rw-r--r--gst/spectrum/demo-osssrc.c81
2 files changed, 89 insertions, 0 deletions
diff --git a/gst/spectrum/Makefile.am b/gst/spectrum/Makefile.am
index 476c3fd1..e991740b 100644
--- a/gst/spectrum/Makefile.am
+++ b/gst/spectrum/Makefile.am
@@ -7,4 +7,12 @@ libgstspectrum_la_CFLAGS = $(GST_CFLAGS)
noinst_HEADERS = gstspectrum.h
+if HAVE_GTK
+noinst_PROGRAMS = demo-osssrc
+endif
+
+demo_osssrc_SOURCES = demo-osssrc.c
+demo_osssrc_CFLAGS = $(GST_CFLAGS) $(GTK_CFLAGS)
+demo_osssrc_LDFLAGS = $(GST_LIBS) $(GTK_LIBS)
+
EXTRA_DIST = README
diff --git a/gst/spectrum/demo-osssrc.c b/gst/spectrum/demo-osssrc.c
new file mode 100644
index 00000000..cd3f6ac4
--- /dev/null
+++ b/gst/spectrum/demo-osssrc.c
@@ -0,0 +1,81 @@
+#include <gnome.h>
+#include <gst/gst.h>
+
+extern gboolean _gst_plugin_spew;
+
+void spectrum_chain(GstPad *pad,GstBuffer *buf);
+gboolean idle_func(gpointer data);
+
+GtkWidget *drawingarea;
+
+int main(int argc,char *argv[]) {
+ GstElement *bin;
+ GstElementFactory *srcfactory;
+ GstElement *src;
+ GstElementFactory *spectrumfactory;
+ GstElement *spectrum;
+ GstPad *spectrumpad;
+
+ GtkWidget *appwindow;
+
+ _gst_plugin_spew = TRUE;
+
+ gst_init(&argc,&argv);
+ gnome_init("Spectrum","0.0.1",argc,argv);
+
+ bin = gst_bin_new("bin");
+
+ srcfactory = gst_elementfactory_find("osssrc");
+ spectrumfactory = gst_elementfactory_find("gstspectrum");
+
+ src = gst_elementfactory_create(srcfactory,"src");
+ gtk_object_set(GTK_OBJECT(src),"bytes_per_read",(gulong)1024,NULL);
+ spectrum = gst_elementfactory_create(spectrumfactory,"spectrum");
+ gtk_object_set(GTK_OBJECT(spectrum),"width",256,NULL);
+
+
+ gst_bin_add(GST_BIN(bin),GST_ELEMENT(src));
+ gst_bin_add(GST_BIN(bin),GST_ELEMENT(spectrum));
+
+ gst_pad_connect(gst_element_get_pad(src,"src"),
+ gst_element_get_pad(spectrum,"sink"));
+
+ spectrumpad = gst_pad_new("sink",GST_PAD_SINK);
+ gst_pad_set_chain_function(spectrumpad,spectrum_chain);
+
+ gst_pad_connect(gst_element_get_pad(spectrum,"src"),spectrumpad);
+
+ appwindow = gnome_app_new("spectrum","Spectrum");
+ drawingarea = gtk_drawing_area_new();
+ gtk_drawing_area_size(GTK_DRAWING_AREA(drawingarea),256,32);
+ gnome_app_set_contents(GNOME_APP(appwindow),drawingarea);
+ gtk_widget_show_all(appwindow);
+
+ gst_element_set_state(GST_ELEMENT(bin),GST_STATE_READY);
+ gst_element_set_state(GST_ELEMENT(bin),GST_STATE_PLAYING);
+
+ g_idle_add(idle_func,src);
+
+ gtk_main();
+
+ return 0;
+}
+
+
+void spectrum_chain(GstPad *pad,GstBuffer *buf) {
+ gint i;
+ guchar *data = buf->data;
+
+ gdk_draw_rectangle(drawingarea->window,drawingarea->style->black_gc,
+ TRUE,0,0,GST_BUFFER_SIZE(buf),25);
+ for (i=0;i<GST_BUFFER_SIZE(buf);i++) {
+ gdk_draw_rectangle(drawingarea->window,drawingarea->style->white_gc,
+ TRUE,i,32-data[i],1,data[i]);
+ }
+ gst_buffer_unref(buf);
+}
+
+gboolean idle_func(gpointer data) {
+ //gst_src_push(GST_SRC(data));
+ return TRUE;
+}