mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-11 11:51:34 +00:00
154 lines
3.9 KiB
C
154 lines
3.9 KiB
C
/* GStreamer
|
|
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
|
|
* 2000 Wim Taymans <wtay@chello.be>
|
|
*
|
|
* gstpipeline.c: Overall pipeline management element
|
|
*
|
|
* 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., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#include "gst_private.h"
|
|
|
|
#include "gstpipeline.h"
|
|
#include "gstlog.h"
|
|
#include "gstscheduler.h"
|
|
|
|
GstElementDetails gst_pipeline_details = {
|
|
"Pipeline object",
|
|
"Generic/Bin",
|
|
"Complete pipeline object",
|
|
VERSION,
|
|
"Erik Walthinsen <omega@cse.ogi.edu>",
|
|
"(C) 1999",
|
|
};
|
|
|
|
/* Pipeline signals and args */
|
|
enum {
|
|
/* FILL ME */
|
|
LAST_SIGNAL
|
|
};
|
|
|
|
enum {
|
|
ARG_0,
|
|
/* FILL ME */
|
|
};
|
|
|
|
|
|
static void gst_pipeline_class_init (GstPipelineClass *klass);
|
|
static void gst_pipeline_init (GstPipeline *pipeline);
|
|
|
|
static void gst_pipeline_dispose (GObject *object);
|
|
|
|
static GstElementStateReturn gst_pipeline_change_state (GstElement *element);
|
|
|
|
static GstBinClass *parent_class = NULL;
|
|
/* static guint gst_pipeline_signals[LAST_SIGNAL] = { 0 }; */
|
|
|
|
GType
|
|
gst_pipeline_get_type (void) {
|
|
static GType pipeline_type = 0;
|
|
|
|
if (!pipeline_type) {
|
|
static const GTypeInfo pipeline_info = {
|
|
sizeof(GstPipelineClass),
|
|
NULL,
|
|
NULL,
|
|
(GClassInitFunc)gst_pipeline_class_init,
|
|
NULL,
|
|
NULL,
|
|
sizeof(GstPipeline),
|
|
0,
|
|
(GInstanceInitFunc)gst_pipeline_init,
|
|
NULL
|
|
};
|
|
pipeline_type = g_type_register_static (GST_TYPE_BIN, "GstPipeline", &pipeline_info, 0);
|
|
}
|
|
return pipeline_type;
|
|
}
|
|
|
|
static void
|
|
gst_pipeline_class_init (GstPipelineClass *klass)
|
|
{
|
|
GObjectClass *gobject_class;
|
|
GstElementClass *gstelement_class;
|
|
|
|
gobject_class = (GObjectClass *)klass;
|
|
gstelement_class = (GstElementClass*)klass;
|
|
|
|
parent_class = g_type_class_ref (gst_bin_get_type ());
|
|
|
|
gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_pipeline_dispose);
|
|
|
|
gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_pipeline_change_state);
|
|
}
|
|
|
|
static void
|
|
gst_pipeline_init (GstPipeline *pipeline)
|
|
{
|
|
GstScheduler *scheduler;
|
|
|
|
/* pipelines are managing bins */
|
|
GST_FLAG_SET (pipeline, GST_BIN_FLAG_MANAGER);
|
|
|
|
/* get an instance of the default scheduler */
|
|
scheduler = gst_scheduler_factory_make (NULL, GST_ELEMENT (pipeline));
|
|
/* FIXME need better error handling */
|
|
if (scheduler == NULL)
|
|
{
|
|
g_error ("Critical error: could not get a scheduler - \
|
|
are you sure you have a registry ?");
|
|
}
|
|
|
|
gst_scheduler_setup (scheduler);
|
|
}
|
|
|
|
static void
|
|
gst_pipeline_dispose (GObject *object)
|
|
{
|
|
GstPipeline *pipeline = GST_PIPELINE (object);
|
|
|
|
G_OBJECT_CLASS (parent_class)->dispose (object);
|
|
|
|
if (GST_ELEMENT_SCHED (pipeline)) {
|
|
gst_scheduler_reset (GST_ELEMENT_SCHED (pipeline));
|
|
gst_object_unref (GST_OBJECT (GST_ELEMENT_SCHED (pipeline)));
|
|
GST_ELEMENT_SCHED (pipeline) = NULL;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gst_pipeline_new:
|
|
* @name: name of new pipeline
|
|
*
|
|
* Create a new pipeline with the given name.
|
|
*
|
|
* Returns: newly created GstPipeline
|
|
*/
|
|
GstElement*
|
|
gst_pipeline_new (const gchar *name)
|
|
{
|
|
return gst_element_factory_make ("pipeline", name);
|
|
}
|
|
|
|
static GstElementStateReturn
|
|
gst_pipeline_change_state (GstElement *element)
|
|
{
|
|
if (GST_ELEMENT_CLASS (parent_class)->change_state)
|
|
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
|
|
|
|
return GST_STATE_SUCCESS;
|
|
}
|
|
|