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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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127 lines
3.2 KiB
C
127 lines
3.2 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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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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#include <gst/gst.h>
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#define UPDATE_INTERVAL 500
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static gboolean
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update_scale (GstElement * element)
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{
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gint64 duration = -1;
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gint64 position = -1;
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gchar dur_str[32], pos_str[32];
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if (gst_element_query_position (element, GST_FORMAT_TIME, &position) &&
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position != -1) {
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g_snprintf (pos_str, 32, "%" GST_TIME_FORMAT, GST_TIME_ARGS (position));
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} else {
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g_snprintf (pos_str, 32, "-:--:--.---------");
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}
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if (gst_element_query_duration (element, GST_FORMAT_TIME, &duration) &&
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duration != -1) {
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g_snprintf (dur_str, 32, "%" GST_TIME_FORMAT, GST_TIME_ARGS (duration));
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} else {
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g_snprintf (dur_str, 32, "-:--:--.---------");
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}
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g_print ("%s / %s\n", pos_str, dur_str);
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return TRUE;
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}
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static void
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warning_cb (GstBus * bus, GstMessage * msg, gpointer foo)
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{
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GError *err = NULL;
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gchar *dbg = NULL;
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gst_message_parse_warning (msg, &err, &dbg);
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g_printerr ("WARNING: %s (%s)\n", err->message, (dbg) ? dbg : "no details");
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g_error_free (err);
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g_free (dbg);
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}
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static void
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error_cb (GstBus * bus, GstMessage * msg, GMainLoop * main_loop)
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{
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GError *err = NULL;
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gchar *dbg = NULL;
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gst_message_parse_error (msg, &err, &dbg);
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g_printerr ("ERROR: %s (%s)\n", err->message, (dbg) ? dbg : "no details");
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g_main_loop_quit (main_loop);
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g_error_free (err);
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g_free (dbg);
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}
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static void
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eos_cb (GstBus * bus, GstMessage * msg, GMainLoop * main_loop)
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{
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g_print ("EOS\n");
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g_main_loop_quit (main_loop);
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}
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gint
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main (gint argc, gchar * argv[])
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{
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GstStateChangeReturn res;
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GstElement *player;
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GMainLoop *loop;
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GstBus *bus;
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gst_init (&argc, &argv);
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loop = g_main_loop_new (NULL, TRUE);
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player = gst_element_factory_make ("playbin", "player");
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g_assert (player);
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bus = gst_pipeline_get_bus (GST_PIPELINE (player));
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gst_bus_add_signal_watch (bus);
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g_signal_connect (bus, "message::eos", G_CALLBACK (eos_cb), loop);
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g_signal_connect (bus, "message::error", G_CALLBACK (error_cb), loop);
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g_signal_connect (bus, "message::warning", G_CALLBACK (warning_cb), NULL);
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g_object_set (G_OBJECT (player), "uri", argv[1], NULL);
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res = gst_element_set_state (player, GST_STATE_PLAYING);
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if (res == GST_STATE_CHANGE_FAILURE) {
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g_print ("could not play\n");
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return -1;
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}
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g_timeout_add (UPDATE_INTERVAL, (GSourceFunc) update_scale, player);
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g_main_loop_run (loop);
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/* tidy up */
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gst_element_set_state (player, GST_STATE_NULL);
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gst_object_unref (player);
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gst_object_unref (bus);
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return 0;
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}
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