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/* GStreamer
* Copyright (C) 2015 Centricular Ltd
* @author: Edward Hervey <edward@centricular.com>
* @author: Jan Schmidt <jan@centricular.com>
*
* gststreams.h : Header for GstStreamCollection subsystem
*
* 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.
*/
#ifndef __GST_STREAM_COLLECTION_H__
#define __GST_STREAM_COLLECTION_H__
#include <gst/gstobject.h>
G_BEGIN_DECLS
#define GST_TYPE_STREAM_COLLECTION (gst_stream_collection_get_type ())
#define GST_IS_STREAM_COLLECTION(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_STREAM_COLLECTION))
#define GST_IS_STREAM_COLLECTION_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_STREAM_COLLECTION))
#define GST_STREAM_COLLECTION_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_STREAM_COLLECTION, GstStreamCollectionClass))
#define GST_STREAM_COLLECTION(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_STREAM_COLLECTION, GstStreamCollection))
#define GST_STREAM_COLLECTION_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_STREAM_COLLECTION, GstStreamCollectionClass))
#define GST_STREAM_COLLECTION_CAST(obj) ((GstStreamCollection*)(obj))
typedef struct _GstStreamCollection GstStreamCollection;
typedef struct _GstStreamCollectionClass GstStreamCollectionClass;
typedef struct _GstStreamCollectionPrivate GstStreamCollectionPrivate;
#include <gst/gststreamcollection.h>
#include <gst/gststreams.h>
/**
* GstStreamCollection:
*
* A collection of #GstStream that are available.
*
* A #GstStreamCollection will be provided by elements that can make those
* streams available. Applications can use the collection to show the user
* what streams are available by using %gst_stream_collection_get_stream()
*
* Once posted, a #GstStreamCollection is immutable. Updates are made by sending
* a new #GstStreamCollection message, which may or may not share some of
* the #GstStream objects from the collection it replaces. The receiver can check
* the sender of a stream collection message to know which collection is
* obsoleted.
*
* Several elements in a pipeline can provide #GstStreamCollection.
*
* Applications can activate streams from a collection by using the
* #GST_EVENT_SELECT_STREAMS event on a pipeline, bin or element.
*
* Since: 1.10
*/
struct _GstStreamCollection {
/*< private >*/
GstObject object;
gchar *upstream_id;
GstStreamCollectionPrivate *priv;
gpointer _gst_reserved[GST_PADDING];
};
/**
* GstStreamCollectionClass:
* @parent_class: the parent class structure
* @stream_notify: default signal handler for the stream-notify signal
*
* GstStreamCollection class structure
*/
struct _GstStreamCollectionClass {
GstObjectClass parent_class;
/* signals */
void (*stream_notify) (GstStreamCollection *collection, GstStream *stream, GParamSpec * pspec);
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
GST_API
GType gst_stream_collection_get_type (void);
GST_API
GstStreamCollection *gst_stream_collection_new (const gchar *upstream_id);
GST_API
const gchar *gst_stream_collection_get_upstream_id (GstStreamCollection *collection);
GST_API
guint gst_stream_collection_get_size (GstStreamCollection *collection);
GST_API
GstStream *gst_stream_collection_get_stream (GstStreamCollection *collection, guint index);
GST_API
gboolean gst_stream_collection_add_stream (GstStreamCollection *collection,
GstStream *stream);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstStreamCollection, gst_object_unref)
G_END_DECLS
#endif /* __GST_STREAM_COLLECTION_H__ */
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