gstreamer/gst/rtsp-server/rtsp-media-factory.h
Alessandro Decina 8f507e4512 rtsp-media-factory: make ::get_element overridable by GI bindings
The way to annotate vfuncs with GI seems to be to create an invoker (GI term)
for them and to annotate the invoker. Add gst_rtsp_media_factory_get_element()
as the invoker for ::get_element(), making it overridable by GI generated
bindings.
2012-10-15 10:50:26 +02:00

159 lines
7.7 KiB
C

/* GStreamer
* Copyright (C) 2008 Wim Taymans <wim.taymans at gmail.com>
*
* 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/gst.h>
#include <gst/rtsp/gstrtspurl.h>
#include "rtsp-media.h"
#include "rtsp-auth.h"
#ifndef __GST_RTSP_MEDIA_FACTORY_H__
#define __GST_RTSP_MEDIA_FACTORY_H__
G_BEGIN_DECLS
/* types for the media factory */
#define GST_TYPE_RTSP_MEDIA_FACTORY (gst_rtsp_media_factory_get_type ())
#define GST_IS_RTSP_MEDIA_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_RTSP_MEDIA_FACTORY))
#define GST_IS_RTSP_MEDIA_FACTORY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_RTSP_MEDIA_FACTORY))
#define GST_RTSP_MEDIA_FACTORY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_RTSP_MEDIA_FACTORY, GstRTSPMediaFactoryClass))
#define GST_RTSP_MEDIA_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_RTSP_MEDIA_FACTORY, GstRTSPMediaFactory))
#define GST_RTSP_MEDIA_FACTORY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_RTSP_MEDIA_FACTORY, GstRTSPMediaFactoryClass))
#define GST_RTSP_MEDIA_FACTORY_CAST(obj) ((GstRTSPMediaFactory*)(obj))
#define GST_RTSP_MEDIA_FACTORY_CLASS_CAST(klass) ((GstRTSPMediaFactoryClass*)(klass))
typedef struct _GstRTSPMediaFactory GstRTSPMediaFactory;
typedef struct _GstRTSPMediaFactoryClass GstRTSPMediaFactoryClass;
#define GST_RTSP_MEDIA_FACTORY_GET_LOCK(f) (&(GST_RTSP_MEDIA_FACTORY_CAST(f)->lock))
#define GST_RTSP_MEDIA_FACTORY_LOCK(f) (g_mutex_lock(GST_RTSP_MEDIA_FACTORY_GET_LOCK(f)))
#define GST_RTSP_MEDIA_FACTORY_UNLOCK(f) (g_mutex_unlock(GST_RTSP_MEDIA_FACTORY_GET_LOCK(f)))
/**
* GstRTSPMediaFactory:
* @lock: mutex protecting the datastructure.
* @launch: the launch description
* @shared: if media from this factory can be shared between clients
* @eos_shutdown: if shutdown should first send EOS to the pipeline
* @protocols: allowed transport protocols
* @auth: the authentication manager
* @buffer_size: the kernel udp buffer size
* @multicast_group: the multicast group to send to
* @medias_lock: mutex protecting the medias.
* @medias: hashtable of shared media
*
* The definition and logic for constructing the pipeline for a media. The media
* can contain multiple streams like audio and video.
*/
struct _GstRTSPMediaFactory {
GObject parent;
GMutex lock;
gchar *launch;
gboolean shared;
gboolean eos_shutdown;
GstRTSPLowerTrans protocols;
GstRTSPAuth *auth;
guint buffer_size;
gchar *multicast_group;
GMutex medias_lock;
GHashTable *medias;
};
/**
* GstRTSPMediaFactoryClass:
* @gen_key: convert @url to a key for caching shared #GstRTSPMedia objects.
* The default implementation of this function will use the complete URL
* including the query parameters to return a key.
* @get_element: Construct and return a #GstElement that is a #GstBin containing
* the elements to use for streaming the media. The bin should contain
* payloaders pay%d for each stream. The default implementation of this
* function returns the bin created from the launch parameter.
* @construct: the vmethod that will be called when the factory has to create the
* #GstRTSPMedia for @url. The default implementation of this
* function calls get_element to retrieve an element and then looks for
* pay%d to create the streams.
* @configure: configure the media created with @construct. The default
* implementation will configure the 'shared' property of the media.
* @create_pipeline: create a new pipeline or re-use an existing one and
* add the #GstRTSPMedia's element created by @construct to the pipeline.
* @media_constructed: signal emited when a media was cunstructed
* @media_configure: signal emited when a media should be configured
*
* The #GstRTSPMediaFactory class structure.
*/
struct _GstRTSPMediaFactoryClass {
GObjectClass parent_class;
gchar * (*gen_key) (GstRTSPMediaFactory *factory, const GstRTSPUrl *url);
GstElement * (*get_element) (GstRTSPMediaFactory *factory, const GstRTSPUrl *url);
GstRTSPMedia * (*construct) (GstRTSPMediaFactory *factory, const GstRTSPUrl *url);
void (*configure) (GstRTSPMediaFactory *factory, GstRTSPMedia *media);
GstElement * (*create_pipeline) (GstRTSPMediaFactory *factory, GstRTSPMedia *media);
/* signals */
void (*media_constructed) (GstRTSPMediaFactory *factory, GstRTSPMedia *media);
void (*media_configure) (GstRTSPMediaFactory *factory, GstRTSPMedia *media);
};
GType gst_rtsp_media_factory_get_type (void);
/* creating the factory */
GstRTSPMediaFactory * gst_rtsp_media_factory_new (void);
/* configuring the factory */
void gst_rtsp_media_factory_set_launch (GstRTSPMediaFactory *factory,
const gchar *launch);
gchar * gst_rtsp_media_factory_get_launch (GstRTSPMediaFactory *factory);
void gst_rtsp_media_factory_set_shared (GstRTSPMediaFactory *factory,
gboolean shared);
gboolean gst_rtsp_media_factory_is_shared (GstRTSPMediaFactory *factory);
void gst_rtsp_media_factory_set_eos_shutdown (GstRTSPMediaFactory *factory,
gboolean eos_shutdown);
gboolean gst_rtsp_media_factory_is_eos_shutdown (GstRTSPMediaFactory *factory);
void gst_rtsp_media_factory_set_protocols (GstRTSPMediaFactory *factory, GstRTSPLowerTrans protocols);
GstRTSPLowerTrans gst_rtsp_media_factory_get_protocols (GstRTSPMediaFactory *factory);
void gst_rtsp_media_factory_set_auth (GstRTSPMediaFactory *factory, GstRTSPAuth *auth);
GstRTSPAuth * gst_rtsp_media_factory_get_auth (GstRTSPMediaFactory *factory);
void gst_rtsp_media_factory_set_buffer_size (GstRTSPMediaFactory * factory, guint size);
guint gst_rtsp_media_factory_get_buffer_size (GstRTSPMediaFactory * factory);
void gst_rtsp_media_factory_set_multicast_group (GstRTSPMediaFactory * factory, const gchar *mc);
gchar * gst_rtsp_media_factory_get_multicast_group (GstRTSPMediaFactory * factory);
/* creating the media from the factory and a url */
GstRTSPMedia * gst_rtsp_media_factory_construct (GstRTSPMediaFactory *factory,
const GstRTSPUrl *url);
void gst_rtsp_media_factory_collect_streams (GstRTSPMediaFactory *factory,
const GstRTSPUrl *url,
GstRTSPMedia *media);
GstElement * gst_rtsp_media_factory_get_element (GstRTSPMediaFactory *factory, const GstRTSPUrl *url);
G_END_DECLS
#endif /* __GST_RTSP_MEDIA_FACTORY_H__ */