mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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124 lines
4.1 KiB
C
124 lines
4.1 KiB
C
/*
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* GStreamer
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* Copyright (C) 2002 Andy Wingo <wingo at pobox dot com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <gtk/gtk.h>
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#include <gst/gst.h>
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static GtkWidget *poslabel; /* NULL */
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void
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set_speed (GtkAdjustment * adj, gpointer data)
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{
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GstElement *speed = GST_ELEMENT (data);
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g_object_set (speed, "speed", adj->value, NULL);
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}
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static gboolean
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time_tick_cb (GstElement * audiosink)
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{
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GstFormat format = GST_FORMAT_TIME;
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guint64 total, pos;
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if (gst_element_query (audiosink, GST_QUERY_TOTAL, &format, &total)
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&& gst_element_query (audiosink, GST_QUERY_POSITION, &format, &pos)) {
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guint t_min, t_sec, p_min, p_sec;
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gchar *s;
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t_min = (guint) (total / (GST_SECOND * 60));
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t_sec = (guint) ((total % (GST_SECOND * 60)) / GST_SECOND);
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p_min = (guint) (pos / (GST_SECOND * 60));
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p_sec = (guint) ((pos % (GST_SECOND * 60)) / GST_SECOND);
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s = g_strdup_printf ("%u:%02u / %u:%02u", p_min, p_sec, t_min, t_sec);
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gtk_label_set_text (GTK_LABEL (poslabel), s);
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g_free (s);
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}
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return TRUE; /* call again */
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}
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int
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main (int argc, char **argv)
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{
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GtkWidget *window, *vbox, *hscale, *button, *hbbox;
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GstElement *filesrc, *mad, *audioconvert, *speed, *audiosink, *pipeline;
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gst_init (&argc, &argv);
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gtk_init (&argc, &argv);
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if (argc != 2) {
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g_print ("usage: %s <your.mp3>\n", argv[0]);
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exit (-1);
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}
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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g_signal_connect (window, "delete-event", G_CALLBACK (gtk_main_quit), NULL);
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gtk_window_set_default_size (GTK_WINDOW (window), 400, 80);
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vbox = gtk_vbox_new (FALSE, 0);
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gtk_container_set_border_width (GTK_CONTAINER (vbox), 6);
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hscale = gtk_hscale_new (GTK_ADJUSTMENT (gtk_adjustment_new (1.0, 0.1, 4.0,
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0.1, 0.0, 0.0)));
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gtk_scale_set_digits (GTK_SCALE (hscale), 2);
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gtk_range_set_update_policy (GTK_RANGE (hscale), GTK_UPDATE_CONTINUOUS);
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hbbox = gtk_hbutton_box_new ();
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button = gtk_button_new_from_stock (GTK_STOCK_QUIT);
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gtk_container_add (GTK_CONTAINER (window), vbox);
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gtk_container_add (GTK_CONTAINER (hbbox), button);
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poslabel = gtk_label_new (NULL);
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gtk_box_pack_start (GTK_BOX (vbox), poslabel, FALSE, FALSE, 2);
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gtk_box_pack_start (GTK_BOX (vbox), hscale, TRUE, TRUE, 2);
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gtk_box_pack_start (GTK_BOX (vbox), hbbox, FALSE, FALSE, 6);
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g_signal_connect (button, "clicked", G_CALLBACK (gtk_main_quit), NULL);
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filesrc = gst_element_factory_make ("filesrc", "filesrc");
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mad = gst_element_factory_make ("mad", "mad");
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audioconvert = gst_element_factory_make ("audioconvert", "audioconvert0");
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speed = gst_element_factory_make ("speed", "speed");
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audiosink = gst_element_factory_make (DEFAULT_AUDIOSINK, "audiosink");
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g_signal_connect (gtk_range_get_adjustment (GTK_RANGE (hscale)),
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"value_changed", G_CALLBACK (set_speed), speed);
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pipeline = gst_pipeline_new ("app");
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gst_bin_add_many (GST_BIN (pipeline), filesrc, mad, audioconvert, speed,
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audiosink, NULL);
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gst_element_link_many (filesrc, mad, audioconvert, speed, audiosink, NULL);
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g_object_set (G_OBJECT (filesrc), "location", argv[1], NULL);
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gst_element_set_state (pipeline, GST_STATE_PLAYING);
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gtk_widget_show_all (window);
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g_idle_add ((GSourceFunc) gst_bin_iterate, pipeline);
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g_timeout_add (200, (GSourceFunc) time_tick_cb, audiosink);
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gtk_main ();
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gst_element_set_state (pipeline, GST_STATE_NULL);
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gst_object_unref (GST_OBJECT (pipeline));
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return 0;
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}
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