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108 lines
4 KiB
C
108 lines
4 KiB
C
/* GStreamer
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* Copyright (C) 2015 Centricular Ltd
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* @author: Edward Hervey <edward@centricular.com>
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* @author: Jan Schmidt <jan@centricular.com>
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*
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* gststreams.h : Header for GstStreamCollection subsystem
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_STREAM_COLLECTION_H__
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#define __GST_STREAM_COLLECTION_H__
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#include <gst/gstobject.h>
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#include <gst/gststreams.h>
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G_BEGIN_DECLS
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#define GST_TYPE_STREAM_COLLECTION (gst_stream_collection_get_type ())
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#define GST_IS_STREAM_COLLECTION(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_STREAM_COLLECTION))
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#define GST_IS_STREAM_COLLECTION_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_STREAM_COLLECTION))
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#define GST_STREAM_COLLECTION_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_STREAM_COLLECTION, GstStreamCollectionClass))
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#define GST_STREAM_COLLECTION(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_STREAM_COLLECTION, GstStreamCollection))
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#define GST_STREAM_COLLECTION_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_STREAM_COLLECTION, GstStreamCollectionClass))
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#define GST_STREAM_COLLECTION_CAST(obj) ((GstStreamCollection*)(obj))
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typedef struct _GstStreamCollection GstStreamCollection;
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typedef struct _GstStreamCollectionClass GstStreamCollectionClass;
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typedef struct _GstStreamCollectionPrivate GstStreamCollectionPrivate;
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/**
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* GstStreamCollection:
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*
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* A collection of #GstStream that are available.
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*
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* A #GstStreamCollection will be provided by elements that can make those
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* streams available. Applications can use the collection to show the user
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* what streams are available by using %gst_stream_collection_get_stream()
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*
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* Once posted, a #GstStreamCollection is immutable. Updates are made by sending
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* a new #GstStreamCollection message, which may or may not share some of
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* the #GstStream objects from the collection it replaces. The receiver can check
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* the sender of a stream collection message to know which collection is
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* obsoleted.
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*
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* Several elements in a pipeline can provide #GstStreamCollection.
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*
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* Applications can activate streams from a collection by using the
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* #GST_EVENT_SELECT_STREAMS event on a pipeline, bin or element.
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*
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* Since: 1.10
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*/
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struct _GstStreamCollection {
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GstObject object;
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/*< private >*/
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gchar *upstream_id;
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GstStreamCollectionPrivate *priv;
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gpointer _gst_reserved[GST_PADDING];
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};
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/**
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* GstStreamCollectionClass:
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* @parent_class: the parent class structure
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* @stream_notify: default signal handler for the stream-notify signal
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*
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* GstStreamCollection class structure
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*/
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struct _GstStreamCollectionClass {
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GstObjectClass parent_class;
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/* signals */
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void (*stream_notify) (GstStreamCollection *collection, GstStream *stream, GParamSpec * pspec);
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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GType gst_stream_collection_get_type (void);
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GstStreamCollection *gst_stream_collection_new (const gchar *upstream_id);
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const gchar *gst_stream_collection_get_upstream_id (GstStreamCollection *collection);
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guint gst_stream_collection_get_size (GstStreamCollection *collection);
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GstStream *gst_stream_collection_get_stream (GstStreamCollection *collection, guint index);
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gboolean gst_stream_collection_add_stream (GstStreamCollection *collection,
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GstStream *stream);
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G_END_DECLS
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#endif /* __GST_STREAM_COLLECTION_H__ */
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