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Diffstat (limited to 'examples/level/demo.c')
-rw-r--r-- | examples/level/demo.c | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/examples/level/demo.c b/examples/level/demo.c deleted file mode 100644 index 502f50f77..000000000 --- a/examples/level/demo.c +++ /dev/null @@ -1,155 +0,0 @@ -/* GStreamer - * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> - * - * demo.c: sample application to display VU meter-like output of level - * Copyright (C) 2003 - * Thomas Vander Stichele <thomas at apestaart dot org> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <gst/gst.h> -#include <gtk/gtk.h> - -/* global array for the scale widgets, we'll assume stereo */ -GtkWidget *elapsed; -GtkWidget *scale[2][3]; - -static void -level_callback (GstElement * element, gdouble time, gint channel, - gdouble rms, gdouble peak, gdouble decay) -{ - gchar *label; - - label = g_strdup_printf ("%.3f", time); - gtk_label_set (GTK_LABEL (elapsed), label); - g_free (label); - gtk_range_set_value (GTK_RANGE (scale[channel][0]), rms); - gtk_range_set_value (GTK_RANGE (scale[channel][1]), peak); - gtk_range_set_value (GTK_RANGE (scale[channel][2]), decay); -} - -static gboolean -idler (gpointer data) -{ - GstElement *pipeline = GST_ELEMENT (data); - - g_print ("+"); - if (gst_bin_iterate (GST_BIN (pipeline))) - return TRUE; - gtk_main_quit (); - return FALSE; -} - -static void -setup_gui () -{ - GtkWidget *window; - GtkWidget *vbox; - GtkWidget *label, *hbox; - int c; - - window = gtk_window_new (GTK_WINDOW_TOPLEVEL); - g_signal_connect (window, "destroy", gtk_main_quit, NULL); - - vbox = gtk_vbox_new (TRUE, 0); - gtk_container_add (GTK_CONTAINER (window), vbox); - - /* elapsed widget */ - hbox = gtk_hbox_new (TRUE, 0); - label = gtk_label_new ("Elapsed"); - elapsed = gtk_label_new ("0.000"); - gtk_container_add (GTK_CONTAINER (hbox), label); - gtk_container_add (GTK_CONTAINER (hbox), elapsed); - gtk_container_add (GTK_CONTAINER (vbox), hbox); - - for (c = 0; c < 2; ++c) { - /* RMS */ - hbox = gtk_hbox_new (TRUE, 0); - label = gtk_label_new ("RMS"); - gtk_container_add (GTK_CONTAINER (hbox), label); - scale[c][0] = gtk_hscale_new_with_range (-90.0, 0.0, 0.2); - gtk_widget_set_size_request (scale[c][0], 100, -1); - gtk_container_add (GTK_CONTAINER (hbox), scale[c][0]); - gtk_container_add (GTK_CONTAINER (vbox), hbox); - /* peak */ - hbox = gtk_hbox_new (TRUE, 0); - label = gtk_label_new ("peak"); - gtk_container_add (GTK_CONTAINER (hbox), label); - scale[c][1] = gtk_hscale_new_with_range (-90.0, 0.0, 0.2); - gtk_widget_set_size_request (scale[c][1], 100, -1); - gtk_container_add (GTK_CONTAINER (hbox), scale[c][1]); - gtk_container_add (GTK_CONTAINER (vbox), hbox); - /* decay */ - hbox = gtk_hbox_new (TRUE, 0); - label = gtk_label_new ("decaying peek"); - gtk_container_add (GTK_CONTAINER (hbox), label); - scale[c][2] = gtk_hscale_new_with_range (-90.0, 0.0, 0.2); - gtk_widget_set_size_request (scale[c][2], 100, -1); - gtk_container_add (GTK_CONTAINER (hbox), scale[c][2]); - gtk_container_add (GTK_CONTAINER (vbox), hbox); - } - - gtk_widget_show_all (GTK_WIDGET (window)); -} - -int -main (int argc, char *argv[]) -{ - - GstElement *pipeline = NULL; - GError *error = NULL; - GstElement *level; - - gst_init (&argc, &argv); - gtk_init (&argc, &argv); - - pipeline = gst_parse_launchv ((const gchar **) &argv[1], &error); - if (error) { - g_print ("pipeline could not be constructed: %s\n", error->message); - g_print ("Please give a complete pipeline with a 'level' element.\n"); - g_print ("Example: sinesrc ! level ! %s\n", DEFAULT_AUDIOSINK); - g_error_free (error); - return 1; - } - - level = gst_bin_get_by_name (GST_BIN (pipeline), "level0"); - if (level == NULL) { - g_print ("Please give a pipeline with a 'level' element in it\n"); - return 1; - } - - g_object_set (level, "signal", TRUE, NULL); - g_signal_connect (level, "level", G_CALLBACK (level_callback), NULL); - - - /* setup GUI */ - setup_gui (); - - /* connect level signal */ - - /* go to main loop */ - gst_element_set_state (pipeline, GST_STATE_PLAYING); - g_idle_add (idler, pipeline); - - gtk_main (); - - return 0; -} |