2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2000 Wim Taymans <wtay@chello.be>
5 * gstpipeline.c: Overall pipeline management element
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
23 #include "gst_private.h"
25 #include "gstpipeline.h"
27 #include "gstscheduler.h"
29 GstElementDetails gst_pipeline_details = {
32 "Complete pipeline object",
34 "Erik Walthinsen <omega@cse.ogi.edu>",
38 /* Pipeline signals and args */
50 static void gst_pipeline_class_init (GstPipelineClass *klass);
51 static void gst_pipeline_init (GstPipeline *pipeline);
53 static void gst_pipeline_dispose (GObject *object);
55 static GstElementStateReturn gst_pipeline_change_state (GstElement *element);
57 static GstBinClass *parent_class = NULL;
58 /* static guint gst_pipeline_signals[LAST_SIGNAL] = { 0 }; */
61 gst_pipeline_get_type (void) {
62 static GType pipeline_type = 0;
65 static const GTypeInfo pipeline_info = {
66 sizeof(GstPipelineClass),
69 (GClassInitFunc)gst_pipeline_class_init,
74 (GInstanceInitFunc)gst_pipeline_init,
77 pipeline_type = g_type_register_static (GST_TYPE_BIN, "GstPipeline", &pipeline_info, 0);
83 gst_pipeline_class_init (GstPipelineClass *klass)
85 GObjectClass *gobject_class;
86 GstElementClass *gstelement_class;
88 gobject_class = (GObjectClass *)klass;
89 gstelement_class = (GstElementClass*)klass;
91 parent_class = g_type_class_ref (gst_bin_get_type ());
93 gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_pipeline_dispose);
95 gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_pipeline_change_state);
99 gst_pipeline_init (GstPipeline *pipeline)
101 GstScheduler *scheduler;
103 /* pipelines are managing bins */
104 GST_FLAG_SET (pipeline, GST_BIN_FLAG_MANAGER);
106 /* get an instance of the default scheduler */
107 scheduler = gst_scheduler_factory_make (NULL, GST_ELEMENT (pipeline));
108 /* FIXME need better error handling */
109 g_return_if_fail (scheduler != NULL);
111 gst_scheduler_setup (scheduler);
115 gst_pipeline_dispose (GObject *object)
117 GstPipeline *pipeline = GST_PIPELINE (object);
119 G_OBJECT_CLASS (parent_class)->dispose (object);
121 if (GST_ELEMENT_SCHED (pipeline)) {
122 gst_scheduler_reset (GST_ELEMENT_SCHED (pipeline));
123 gst_object_unref (GST_OBJECT (GST_ELEMENT_SCHED (pipeline)));
124 GST_ELEMENT_SCHED (pipeline) = NULL;
130 * @name: name of new pipeline
132 * Create a new pipeline with the given name.
134 * Returns: newly created GstPipeline
137 gst_pipeline_new (const gchar *name)
139 return gst_element_factory_make ("pipeline", name);
142 static GstElementStateReturn
143 gst_pipeline_change_state (GstElement *element)
145 if (GST_ELEMENT_CLASS (parent_class)->change_state)
146 return GST_ELEMENT_CLASS (parent_class)->change_state (element);
148 return GST_STATE_SUCCESS;