gst-libs/gst/webrtc/rtptransceiver.c

   1 /* GStreamer
   2  * Copyright (C) 2017 Matthew Waters <matthew@centricular.com>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  17  * Boston, MA 02110-1301, USA.
  18  */
  19
  20 /**
  21  * SECTION:gstwebrtc-transceiver
  22  * @short_description: RTCRtpTransceiver object
  23  * @title: GstWebRTCRTPTransceiver
  24  * @see_also: #GstWebRTCRTPSender, #GstWebRTCRTPReceiver
  25  *
  26  * <ulink url="https://www.w3.org/TR/webrtc/#rtcrtptransceiver-interface">https://www.w3.org/TR/webrtc/#rtcrtptransceiver-interface</ulink>
  27  */
  28
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32
  33 #include "rtptransceiver.h"
  34
  35 #define GST_CAT_DEFAULT gst_webrtc_rtp_transceiver_debug
  36 GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
  37
  38 #define gst_webrtc_rtp_transceiver_parent_class parent_class
  39 G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstWebRTCRTPTransceiver,
  40     gst_webrtc_rtp_transceiver, GST_TYPE_OBJECT,
  41     GST_DEBUG_CATEGORY_INIT (gst_webrtc_rtp_transceiver_debug,
  42         "webrtctransceiver", 0, "webrtctransceiver");
  43     );
  44
  45 enum
  46 {
  47   SIGNAL_0,
  48   LAST_SIGNAL,
  49 };
  50
  51 enum
  52 {
  53   PROP_0,
  54   PROP_MID,
  55   PROP_SENDER,
  56   PROP_RECEIVER,
  57   PROP_STOPPED,                 // FIXME
  58   PROP_DIRECTION,               // FIXME
  59   PROP_MLINE,
  60 };
  61
  62 //static guint gst_webrtc_rtp_transceiver_signals[LAST_SIGNAL] = { 0 };
  63
  64 static void
  65 gst_webrtc_rtp_transceiver_set_property (GObject * object, guint prop_id,
  66     const GValue * value, GParamSpec * pspec)
  67 {
  68   GstWebRTCRTPTransceiver *webrtc = GST_WEBRTC_RTP_TRANSCEIVER (object);
  69
  70   switch (prop_id) {
  71     case PROP_SENDER:
  72       webrtc->sender = g_value_dup_object (value);
  73       break;
  74     case PROP_RECEIVER:
  75       webrtc->receiver = g_value_dup_object (value);
  76       break;
  77     case PROP_MLINE:
  78       webrtc->mline = g_value_get_uint (value);
  79       break;
  80     default:
  81       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
  82       break;
  83   }
  84 }
  85
  86 static void
  87 gst_webrtc_rtp_transceiver_get_property (GObject * object, guint prop_id,
  88     GValue * value, GParamSpec * pspec)
  89 {
  90   GstWebRTCRTPTransceiver *webrtc = GST_WEBRTC_RTP_TRANSCEIVER (object);
  91
  92   switch (prop_id) {
  93     case PROP_SENDER:
  94       g_value_set_object (value, webrtc->sender);
  95       break;
  96     case PROP_RECEIVER:
  97       g_value_set_object (value, webrtc->receiver);
  98       break;
  99     case PROP_MLINE:
 100       g_value_set_uint (value, webrtc->mline);
 101       break;
 102     default:
 103       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 104       break;
 105   }
 106 }
 107
 108 static void
 109 gst_webrtc_rtp_transceiver_constructed (GObject * object)
 110 {
 111   GstWebRTCRTPTransceiver *webrtc = GST_WEBRTC_RTP_TRANSCEIVER (object);
 112
 113   gst_object_set_parent (GST_OBJECT (webrtc->sender), GST_OBJECT (webrtc));
 114   gst_object_set_parent (GST_OBJECT (webrtc->receiver), GST_OBJECT (webrtc));
 115
 116   G_OBJECT_CLASS (parent_class)->constructed (object);
 117 }
 118
 119 static void
 120 gst_webrtc_rtp_transceiver_dispose (GObject * object)
 121 {
 122   GstWebRTCRTPTransceiver *webrtc = GST_WEBRTC_RTP_TRANSCEIVER (object);
 123
 124   if (webrtc->sender) {
 125     GST_OBJECT_PARENT (webrtc->sender) = NULL;
 126     gst_object_unref (webrtc->sender);
 127   }
 128   webrtc->sender = NULL;
 129   if (webrtc->receiver) {
 130     GST_OBJECT_PARENT (webrtc->receiver) = NULL;
 131     gst_object_unref (webrtc->receiver);
 132   }
 133   webrtc->receiver = NULL;
 134
 135   G_OBJECT_CLASS (parent_class)->dispose (object);
 136 }
 137
 138 static void
 139 gst_webrtc_rtp_transceiver_finalize (GObject * object)
 140 {
 141   GstWebRTCRTPTransceiver *webrtc = GST_WEBRTC_RTP_TRANSCEIVER (object);
 142
 143   g_free (webrtc->mid);
 144   if (webrtc->codec_preferences)
 145     gst_caps_unref (webrtc->codec_preferences);
 146
 147   G_OBJECT_CLASS (parent_class)->finalize (object);
 148 }
 149
 150 static void
 151 gst_webrtc_rtp_transceiver_class_init (GstWebRTCRTPTransceiverClass * klass)
 152 {
 153   GObjectClass *gobject_class = (GObjectClass *) klass;
 154
 155   gobject_class->get_property = gst_webrtc_rtp_transceiver_get_property;
 156   gobject_class->set_property = gst_webrtc_rtp_transceiver_set_property;
 157   gobject_class->constructed = gst_webrtc_rtp_transceiver_constructed;
 158   gobject_class->dispose = gst_webrtc_rtp_transceiver_dispose;
 159   gobject_class->finalize = gst_webrtc_rtp_transceiver_finalize;
 160
 161   g_object_class_install_property (gobject_class,
 162       PROP_SENDER,
 163       g_param_spec_object ("sender", "Sender",
 164           "The RTP sender for this transceiver",
 165           GST_TYPE_WEBRTC_RTP_SENDER,
 166           G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
 167
 168   g_object_class_install_property (gobject_class,
 169       PROP_RECEIVER,
 170       g_param_spec_object ("receiver", "Receiver",
 171           "The RTP receiver for this transceiver",
 172           GST_TYPE_WEBRTC_RTP_RECEIVER,
 173           G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
 174
 175   g_object_class_install_property (gobject_class,
 176       PROP_MLINE,
 177       g_param_spec_uint ("mlineindex", "Media Line Index",
 178           "Index in the SDP of the Media",
 179           0, G_MAXUINT, 0,
 180           G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
 181 }
 182
 183 static void
 184 gst_webrtc_rtp_transceiver_init (GstWebRTCRTPTransceiver * webrtc)
 185 {
 186 }