gstreamer/subprojects/gst-plugins-base/tests/interactive/playback/test3.c

127 lines
3.2 KiB
C

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