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36c13b82d8
Original commit message from CVS: 2004-01-11 Julien MOUTTE <julien@moutte.net> * configure.ac: Adding examples/switch/Makefile * examples/Makefile.am: Adding examples/switch * examples/switch/Makefile.am: Adding switcher example. * examples/switch/switcher.c: (got_eos), (idle_iterate), (switch_timer), (main): Adding an example demonstrating switch usage with 2 videotestsrc showing different patterns. * gst/switch/gstswitch.c: (gst_switch_request_new_pad), (gst_switch_init): Fixing switch with the new caps system.
108 lines
3.1 KiB
C
108 lines
3.1 KiB
C
/* GStreamer
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* Copyright (C) 2003 Julien Moutte <julien@moutte.net>
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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 <gst/gst.h>
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static GMainLoop *loop = NULL;
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static void
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got_eos (GstElement *pipeline)
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{
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g_main_loop_quit (loop);
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}
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static gboolean
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idle_iterate (GstElement *pipeline)
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{
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gst_bin_iterate (GST_BIN (pipeline));
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return (GST_STATE (GST_ELEMENT (pipeline)) == GST_STATE_PLAYING);
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}
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static gboolean
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switch_timer (GstElement *video_switch)
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{
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gint nb_sources, active_source;
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g_object_get (G_OBJECT (video_switch), "nb_sources", &nb_sources, NULL);
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g_object_get (G_OBJECT (video_switch), "active_source",
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&active_source, NULL);
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active_source ++;
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if (active_source > nb_sources - 1)
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active_source = 0;
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g_object_set (G_OBJECT (video_switch), "active_source",
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active_source, NULL);
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g_message ("current number of sources : %d, active source %d",
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nb_sources, active_source);
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return (GST_STATE (GST_ELEMENT (video_switch)) == GST_STATE_PLAYING);
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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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GstElement *pipeline, *src1, *src2, *video_switch, *video_sink;
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/* Initing GStreamer library */
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gst_init (&argc, &argv);
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loop = g_main_loop_new (NULL, FALSE);
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pipeline = gst_pipeline_new ("pipeline");
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src1 = gst_element_factory_make ("videotestsrc", "src1");
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g_object_set (G_OBJECT (src1), "pattern", 0, NULL);
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src2 = gst_element_factory_make ("videotestsrc", "src2");
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g_object_set (G_OBJECT (src2), "pattern", 1, NULL);
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video_switch = gst_element_factory_make ("switch", "video_switch");
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video_sink = gst_element_factory_make ("ximagesink", "video_sink");
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gst_bin_add_many (GST_BIN (pipeline), src1, src2, video_switch,
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video_sink, NULL);
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gst_element_link (src1, video_switch);
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gst_element_link (src2, video_switch);
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gst_element_link (video_switch, video_sink);
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g_signal_connect (G_OBJECT (pipeline), "eos",
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G_CALLBACK (got_eos), NULL);
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gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
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g_idle_add ((GSourceFunc) idle_iterate, pipeline);
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g_timeout_add (2000, (GSourceFunc) switch_timer, video_switch);
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g_main_loop_run (loop);
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gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_READY);
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/* unref */
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gst_object_unref (GST_OBJECT (pipeline));
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exit (0);
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}
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