gstreamer/gst-libs/gst/webrtc/icetransport.h
Matthew Waters 1894293d63 webrtcbin: an element that handles the transport aspects of webrtc connections
SDP's are generated and consumed according to the W3C PeerConnection API
available from https://www.w3.org/TR/webrtc/

The SDP is either created initially from the connected
sink pads/attached transceivers as in the case of generating an offer or
intersected with the connected sink pads/attached transceivers as in
the case for creating an answer.  In both cases, the rtp payloaded streams
sent by the peer are exposed as separate src pads.

The implementation supports trickle ICE, RTCP muxing, reduced size RTCP.

With contributions from:
Nirbheek Chauhan <nirbheek@centricular.com>
Mathieu Duponchelle <mathieu@centricular.com>
Edward Hervey <edward@centricular.com>

https://bugzilla.gnome.org/show_bug.cgi?id=792523
2018-02-02 15:02:21 +11:00

76 lines
3.2 KiB
C

/* GStreamer
* Copyright (C) 2017 Matthew Waters <matthew@centricular.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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_WEBRTC_ICE_TRANSPORT_H__
#define __GST_WEBRTC_ICE_TRANSPORT_H__
#include <gst/gst.h>
#include <gst/webrtc/webrtc_fwd.h>
G_BEGIN_DECLS
GST_EXPORT
GType gst_webrtc_ice_transport_get_type(void);
#define GST_TYPE_WEBRTC_ICE_TRANSPORT (gst_webrtc_ice_transport_get_type())
#define GST_WEBRTC_ICE_TRANSPORT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_WEBRTC_ICE_TRANSPORT,GstWebRTCICETransport))
#define GST_IS_WEBRTC_ICE_TRANSPORT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_WEBRTC_ICE_TRANSPORT))
#define GST_WEBRTC_ICE_TRANSPORT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_WEBRTC_ICE_TRANSPORT,GstWebRTCICETransportClass))
#define GST_IS_WEBRTC_ICE_TRANSPORT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_WEBRTC_ICE_TRANSPORT))
#define GST_WEBRTC_ICE_TRANSPORT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_WEBRTC_ICE_TRANSPORT,GstWebRTCICETransportClass))
struct _GstWebRTCICETransport
{
GstObject parent;
GstWebRTCIceRole role;
GstWebRTCICEComponent component;
GstWebRTCICEConnectionState state;
GstWebRTCICEGatheringState gathering_state;
/* Filled by subclasses */
GstElement *src;
GstElement *sink;
gpointer _padding[GST_PADDING];
};
struct _GstWebRTCICETransportClass
{
GstBinClass parent_class;
gboolean (*gather_candidates) (GstWebRTCICETransport * transport);
gpointer _padding[GST_PADDING];
};
GST_EXPORT
void gst_webrtc_ice_transport_connection_state_change (GstWebRTCICETransport * ice,
GstWebRTCICEConnectionState new_state);
GST_EXPORT
void gst_webrtc_ice_transport_gathering_state_change (GstWebRTCICETransport * ice,
GstWebRTCICEGatheringState new_state);
GST_EXPORT
void gst_webrtc_ice_transport_selected_pair_change (GstWebRTCICETransport * ice);
GST_EXPORT
void gst_webrtc_ice_transport_new_candidate (GstWebRTCICETransport * ice, guint stream_id, GstWebRTCICEComponent component, gchar * attr);
G_END_DECLS
#endif /* __GST_WEBRTC_ICE_TRANSPORT_H__ */