mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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8bc146d759
Original commit message from CVS: Add query function to GstSpeed, so that the stream length and current position get adjusted when queried (note that current position queries may still be wrong if the audio sink returns values based on buffer timestamps instead of passing on the query
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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, 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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