gstreamer/gst-libs/gst/webrtc/icetransport.c

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/* 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.
*/
/**
* SECTION:gstwebrtc-icetransport
* @short_description: RTCIceTransport object
* @title: GstWebRTCICETransport
* @see_also: #GstWebRTCRTPSender, #GstWebRTCRTPReceiver, #GstWebRTCDTLSTransport
*
* <ulink url="https://www.w3.org/TR/webrtc/#rtcicetransport">https://www.w3.org/TR/webrtc/#rtcicetransport</ulink>
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "icetransport.h"
#include "webrtc-enumtypes.h"
#define GST_CAT_DEFAULT gst_webrtc_ice_transport_debug
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
#define gst_webrtc_ice_transport_parent_class parent_class
/* We would inherit from GstBin however when combined with the dtls transport,
* this causes loops in the graph. */
G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstWebRTCICETransport,
gst_webrtc_ice_transport, GST_TYPE_OBJECT,
GST_DEBUG_CATEGORY_INIT (gst_webrtc_ice_transport_debug,
"webrtcicetransport", 0, "webrtcicetransport"););
enum
{
SIGNAL_0,
ON_SELECTED_CANDIDATE_PAIR_CHANGE_SIGNAL,
ON_NEW_CANDIDATE_SIGNAL,
LAST_SIGNAL,
};
enum
{
PROP_0,
PROP_COMPONENT,
PROP_STATE,
PROP_GATHERING_STATE,
};
static guint gst_webrtc_ice_transport_signals[LAST_SIGNAL] = { 0 };
void
gst_webrtc_ice_transport_connection_state_change (GstWebRTCICETransport * ice,
GstWebRTCICEConnectionState new_state)
{
GST_OBJECT_LOCK (ice);
ice->state = new_state;
GST_OBJECT_UNLOCK (ice);
g_object_notify (G_OBJECT (ice), "state");
}
void
gst_webrtc_ice_transport_gathering_state_change (GstWebRTCICETransport * ice,
GstWebRTCICEGatheringState new_state)
{
GST_OBJECT_LOCK (ice);
ice->gathering_state = new_state;
GST_OBJECT_UNLOCK (ice);
g_object_notify (G_OBJECT (ice), "gathering-state");
}
void
gst_webrtc_ice_transport_selected_pair_change (GstWebRTCICETransport * ice)
{
g_signal_emit (ice,
gst_webrtc_ice_transport_signals
[ON_SELECTED_CANDIDATE_PAIR_CHANGE_SIGNAL], 0);
}
void
gst_webrtc_ice_transport_new_candidate (GstWebRTCICETransport * ice,
guint stream_id, GstWebRTCICEComponent component, gchar * attr)
{
g_signal_emit (ice, gst_webrtc_ice_transport_signals[ON_NEW_CANDIDATE_SIGNAL],
stream_id, component, attr);
}
static void
gst_webrtc_ice_transport_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstWebRTCICETransport *webrtc = GST_WEBRTC_ICE_TRANSPORT (object);
switch (prop_id) {
case PROP_COMPONENT:
webrtc->component = g_value_get_enum (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_webrtc_ice_transport_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstWebRTCICETransport *webrtc = GST_WEBRTC_ICE_TRANSPORT (object);
switch (prop_id) {
case PROP_COMPONENT:
g_value_set_enum (value, webrtc->component);
break;
case PROP_STATE:
g_value_set_enum (value, webrtc->state);
break;
case PROP_GATHERING_STATE:
g_value_set_enum (value, webrtc->gathering_state);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_webrtc_ice_transport_finalize (GObject * object)
{
// GstWebRTCICETransport *webrtc = GST_WEBRTC_ICE_TRANSPORT (object);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_webrtc_ice_transport_constructed (GObject * object)
{
// GstWebRTCICETransport *webrtc = GST_WEBRTC_ICE_TRANSPORT (object);
G_OBJECT_CLASS (parent_class)->constructed (object);
}
static void
gst_webrtc_ice_transport_class_init (GstWebRTCICETransportClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
gobject_class->constructed = gst_webrtc_ice_transport_constructed;
gobject_class->get_property = gst_webrtc_ice_transport_get_property;
gobject_class->set_property = gst_webrtc_ice_transport_set_property;
gobject_class->finalize = gst_webrtc_ice_transport_finalize;
g_object_class_install_property (gobject_class,
PROP_COMPONENT,
g_param_spec_enum ("component",
"ICE component", "The ICE component of this transport",
GST_TYPE_WEBRTC_ICE_COMPONENT, 0,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_STATE,
g_param_spec_enum ("state",
"ICE connection state", "The ICE connection state of this transport",
GST_TYPE_WEBRTC_ICE_CONNECTION_STATE, 0,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_GATHERING_STATE,
g_param_spec_enum ("gathering-state",
"ICE gathering state", "The ICE gathering state of this transport",
GST_TYPE_WEBRTC_ICE_GATHERING_STATE, 0,
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
/**
* GstWebRTC::on-selected_candidate-pair-change:
* @object: the #GstWebRTCICETransport
*/
gst_webrtc_ice_transport_signals[ON_SELECTED_CANDIDATE_PAIR_CHANGE_SIGNAL] =
g_signal_new ("on-selected-candidate-pair-change",
G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, 0, NULL, NULL,
g_cclosure_marshal_generic, G_TYPE_NONE, 0);
/**
* GstWebRTC::on-new-candidate:
* @object: the #GstWebRTCICETransport
*/
gst_webrtc_ice_transport_signals[ON_NEW_CANDIDATE_SIGNAL] =
g_signal_new ("on-new-candidate",
G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST, 0, NULL, NULL,
g_cclosure_marshal_generic, G_TYPE_NONE, 1, G_TYPE_STRING);
}
static void
gst_webrtc_ice_transport_init (GstWebRTCICETransport * webrtc)
{
}