gstreamer/gst/smoothwave/demo-osssrc.c

#include <gtk/gtk.h>
#include <gst/gst.h>

extern gboolean _gst_plugin_spew;

gboolean idle_func(gpointer data);

GtkWidget *drawingarea;

int main(int argc,char *argv[]) {
  GstElement *bin;
  GstElementFactory *srcfactory;
  GstElement *src;
  GstElementFactory *wavefactory;
  GstElement *wave;
  GtkWidget *wave_widget;
  GtkWidget *appwindow;

  gst_init(&argc,&argv);
  gst_plugin_load("libsmoothwave.so");
  gtk_init(&argc,&argv);

  bin = gst_pipeline_new("bin");

  srcfactory = gst_element_factory_find("sinesrc");
  g_return_val_if_fail(srcfactory != NULL, -1);
  wavefactory = gst_element_factory_find("smoothwave");
  g_return_val_if_fail(wavefactory != NULL, -1);

  src = gst_element_factory_create(srcfactory,"src");
  //g_object_set(G_OBJECT(src),"bytes_per_read",(gulong)2048,NULL);
  wave = gst_element_factory_create(wavefactory,"wave");
  g_object_set(G_OBJECT(wave),"width",256,"height",100,NULL);


  gst_bin_add(GST_BIN(bin),GST_ELEMENT(src));
  gst_bin_add(GST_BIN(bin),GST_ELEMENT(wave));

  gst_pad_link(gst_element_get_pad(src,"src"),
                  gst_element_get_pad(wave,"sink"));

  appwindow = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  g_object_get(G_OBJECT(wave),"widget",&wave_widget,NULL);
  gtk_container_add(GTK_CONTAINER(appwindow), wave_widget);
  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,bin);

  gtk_main();

  return 0;
}

gboolean idle_func(gpointer data)
{
  gst_bin_iterate(GST_BIN(data));
  return TRUE;
}