/* 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__ */