/* * GStreamer * Copyright (C) 2002 Andy Wingo <wingo at pobox dot com> * * 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., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include <stdlib.h> #include <gtk/gtk.h> #include <gst/gst.h> static GtkWidget *poslabel; /* NULL */ void set_speed (GtkAdjustment * adj, gpointer data) { GstElement *speed = GST_ELEMENT (data); g_object_set (speed, "speed", adj->value, NULL); } static gboolean time_tick_cb (GstElement * audiosink) { GstFormat format = GST_FORMAT_TIME; guint64 total, pos; if (gst_element_query (audiosink, GST_QUERY_TOTAL, &format, &total) && gst_element_query (audiosink, GST_QUERY_POSITION, &format, &pos)) { guint t_min, t_sec, p_min, p_sec; gchar *s; t_min = (guint) (total / (GST_SECOND * 60)); t_sec = (guint) ((total % (GST_SECOND * 60)) / GST_SECOND); p_min = (guint) (pos / (GST_SECOND * 60)); p_sec = (guint) ((pos % (GST_SECOND * 60)) / GST_SECOND); s = g_strdup_printf ("%u:%02u / %u:%02u", p_min, p_sec, t_min, t_sec); gtk_label_set_text (GTK_LABEL (poslabel), s); g_free (s); } return TRUE; /* call again */ } int main (int argc, char **argv) { GtkWidget *window, *vbox, *hscale, *button, *hbbox; GstElement *filesrc, *mad, *audioconvert, *speed, *audiosink, *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); g_signal_connect (window, "delete-event", G_CALLBACK (gtk_main_quit), NULL); gtk_window_set_default_size (GTK_WINDOW (window), 400, 80); vbox = gtk_vbox_new (FALSE, 0); gtk_container_set_border_width (GTK_CONTAINER (vbox), 6); hscale = gtk_hscale_new (GTK_ADJUSTMENT (gtk_adjustment_new (1.0, 0.1, 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); hbbox = gtk_hbutton_box_new (); button = gtk_button_new_from_stock (GTK_STOCK_QUIT); gtk_container_add (GTK_CONTAINER (window), vbox); gtk_container_add (GTK_CONTAINER (hbbox), button); poslabel = gtk_label_new (NULL); gtk_box_pack_start (GTK_BOX (vbox), poslabel, FALSE, FALSE, 2); gtk_box_pack_start (GTK_BOX (vbox), hscale, TRUE, TRUE, 2); gtk_box_pack_start (GTK_BOX (vbox), hbbox, FALSE, FALSE, 6); g_signal_connect (button, "clicked", G_CALLBACK (gtk_main_quit), NULL); filesrc = gst_element_factory_make ("filesrc", "filesrc"); mad = gst_element_factory_make ("mad", "mad"); audioconvert = gst_element_factory_make ("audioconvert", "audioconvert0"); speed = gst_element_factory_make ("speed", "speed"); audiosink = gst_element_factory_make (DEFAULT_AUDIOSINK, "audiosink"); g_signal_connect (gtk_range_get_adjustment (GTK_RANGE (hscale)), "value_changed", G_CALLBACK (set_speed), speed); pipeline = gst_pipeline_new ("app"); gst_bin_add_many (GST_BIN (pipeline), filesrc, mad, audioconvert, speed, audiosink, NULL); gst_element_link_many (filesrc, mad, audioconvert, speed, audiosink, NULL); g_object_set (G_OBJECT (filesrc), "location", argv[1], NULL); gst_element_set_state (pipeline, GST_STATE_PLAYING); gtk_widget_show_all (window); g_idle_add ((GSourceFunc) gst_bin_iterate, pipeline); g_timeout_add (200, (GSourceFunc) time_tick_cb, audiosink); gtk_main (); gst_element_set_state (pipeline, GST_STATE_NULL); gst_object_unref (GST_OBJECT (pipeline)); return 0; }