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1894293d63
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
149 lines
4.2 KiB
C
149 lines
4.2 KiB
C
/* GStreamer
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* Copyright (C) 2017 Matthew Waters <matthew@centricular.com>
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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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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "gstwebrtcbin.h"
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#include "utils.h"
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#include "webrtctransceiver.h"
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#define webrtc_transceiver_parent_class parent_class
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G_DEFINE_TYPE (WebRTCTransceiver, webrtc_transceiver,
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GST_TYPE_WEBRTC_RTP_TRANSCEIVER);
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enum
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{
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PROP_0,
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PROP_WEBRTC,
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};
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void
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webrtc_transceiver_set_transport (WebRTCTransceiver * trans,
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TransportStream * stream)
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{
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GstWebRTCRTPTransceiver *rtp_trans;
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g_return_if_fail (WEBRTC_IS_TRANSCEIVER (trans));
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rtp_trans = GST_WEBRTC_RTP_TRANSCEIVER (trans);
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gst_object_replace ((GstObject **) & trans->stream, (GstObject *) stream);
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if (rtp_trans->sender)
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gst_object_replace ((GstObject **) & rtp_trans->sender->transport,
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(GstObject *) stream->transport);
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if (rtp_trans->receiver)
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gst_object_replace ((GstObject **) & rtp_trans->receiver->transport,
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(GstObject *) stream->transport);
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if (rtp_trans->sender)
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gst_object_replace ((GstObject **) & rtp_trans->sender->rtcp_transport,
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(GstObject *) stream->rtcp_transport);
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if (rtp_trans->receiver)
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gst_object_replace ((GstObject **) & rtp_trans->receiver->rtcp_transport,
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(GstObject *) stream->rtcp_transport);
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}
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static void
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webrtc_transceiver_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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WebRTCTransceiver *trans = WEBRTC_TRANSCEIVER (object);
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switch (prop_id) {
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case PROP_WEBRTC:
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gst_object_set_parent (GST_OBJECT (trans), g_value_get_object (value));
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break;
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}
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GST_OBJECT_LOCK (trans);
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switch (prop_id) {
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case PROP_WEBRTC:
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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GST_OBJECT_UNLOCK (trans);
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}
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static void
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webrtc_transceiver_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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WebRTCTransceiver *trans = WEBRTC_TRANSCEIVER (object);
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GST_OBJECT_LOCK (trans);
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switch (prop_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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GST_OBJECT_UNLOCK (trans);
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}
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static void
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webrtc_transceiver_finalize (GObject * object)
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{
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WebRTCTransceiver *trans = WEBRTC_TRANSCEIVER (object);
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if (trans->stream)
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gst_object_unref (trans->stream);
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trans->stream = NULL;
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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webrtc_transceiver_class_init (WebRTCTransceiverClass * klass)
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{
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GObjectClass *gobject_class = (GObjectClass *) klass;
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gobject_class->get_property = webrtc_transceiver_get_property;
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gobject_class->set_property = webrtc_transceiver_set_property;
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gobject_class->finalize = webrtc_transceiver_finalize;
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/* some acrobatics are required to set the parent before _constructed()
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* has been called */
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g_object_class_install_property (gobject_class,
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PROP_WEBRTC,
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g_param_spec_object ("webrtc", "Parent webrtcbin",
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"Parent webrtcbin",
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GST_TYPE_WEBRTC_BIN,
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G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
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}
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static void
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webrtc_transceiver_init (WebRTCTransceiver * trans)
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{
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}
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WebRTCTransceiver *
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webrtc_transceiver_new (GstWebRTCBin * webrtc, GstWebRTCRTPSender * sender,
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GstWebRTCRTPReceiver * receiver)
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{
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WebRTCTransceiver *trans;
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trans = g_object_new (webrtc_transceiver_get_type (), "sender", sender,
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"receiver", receiver, "webrtc", webrtc, NULL);
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return trans;
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}
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