EmpathyCallHandler -> EmpathyStreamedMediaHandler

1 files changed, 924 insertions, 0 deletions

diff --git a/libempathy/empathy-streamed-media-handler.c b/libempathy/empathy-streamed-media-handler.c
new file mode 100644
index 000000000..7fa49cde7
--- /dev/null
+++ b/libempathy/empathy-streamed-media-handler.c
@@ -0,0 +1,924 @@
+/*
+ * empathy-call-handler.c - Source for EmpathyStreamedMediaHandler
+ * Copyright (C) 2008-2009 Collabora Ltd.
+ * @author Sjoerd Simons <sjoerd.simons@collabora.co.uk>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser 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
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <telepathy-glib/account-channel-request.h>
+#include <telepathy-glib/util.h>
+#include <telepathy-glib/interfaces.h>
+
+#include <telepathy-farsight/channel.h>
+#include <telepathy-farsight/stream.h>
+
+#include "empathy-streamed-media-handler.h"
+#include "empathy-call-factory.h"
+#include "empathy-marshal.h"
+#include "empathy-utils.h"
+
+#define DEBUG_FLAG EMPATHY_DEBUG_VOIP
+#include <libempathy/empathy-debug.h>
+
+G_DEFINE_TYPE(EmpathyStreamedMediaHandler, empathy_streamed_media_handler, G_TYPE_OBJECT)
+
+/* signal enum */
+enum {
+  CONFERENCE_ADDED,
+  SRC_PAD_ADDED,
+  SINK_PAD_ADDED,
+  REQUEST_RESOURCE,
+  CLOSED,
+  STREAM_CLOSED,
+  CANDIDATES_CHANGED,
+  LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = {0};
+
+enum {
+  PROP_TP_STREAMED_MEDIA = 1,
+  PROP_GST_BUS,
+  PROP_CONTACT,
+  PROP_INITIAL_AUDIO,
+  PROP_INITIAL_VIDEO,
+  PROP_SEND_AUDIO_CODEC,
+  PROP_SEND_VIDEO_CODEC,
+  PROP_RECV_AUDIO_CODECS,
+  PROP_RECV_VIDEO_CODECS,
+  PROP_AUDIO_REMOTE_CANDIDATE,
+  PROP_VIDEO_REMOTE_CANDIDATE,
+  PROP_AUDIO_LOCAL_CANDIDATE,
+  PROP_VIDEO_LOCAL_CANDIDATE,
+};
+
+/* private structure */
+
+typedef struct {
+  gboolean dispose_has_run;
+  EmpathyTpStreamedMedia *call;
+  EmpathyContact *contact;
+  TfChannel *tfchannel;
+  gboolean initial_audio;
+  gboolean initial_video;
+
+  FsCodec *send_audio_codec;
+  FsCodec *send_video_codec;
+  GList *recv_audio_codecs;
+  GList *recv_video_codecs;
+  FsCandidate *audio_remote_candidate;
+  FsCandidate *video_remote_candidate;
+  FsCandidate *audio_local_candidate;
+  FsCandidate *video_local_candidate;
+} EmpathyStreamedMediaHandlerPriv;
+
+#define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyStreamedMediaHandler)
+
+static void
+empathy_streamed_media_handler_dispose (GObject *object)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (object);
+
+  if (priv->dispose_has_run)
+    return;
+
+  priv->dispose_has_run = TRUE;
+
+  if (priv->contact != NULL)
+    g_object_unref (priv->contact);
+
+  priv->contact = NULL;
+
+  if (priv->tfchannel != NULL)
+    g_object_unref (priv->tfchannel);
+
+  priv->tfchannel = NULL;
+
+  if (priv->call != NULL)
+    {
+      empathy_tp_streamed_media_close (priv->call);
+      g_object_unref (priv->call);
+    }
+
+  priv->call = NULL;
+
+  /* release any references held by the object here */
+  if (G_OBJECT_CLASS (empathy_streamed_media_handler_parent_class)->dispose)
+    G_OBJECT_CLASS (empathy_streamed_media_handler_parent_class)->dispose (object);
+}
+
+static void
+empathy_streamed_media_handler_finalize (GObject *object)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (object);
+
+  fs_codec_destroy (priv->send_audio_codec);
+  fs_codec_destroy (priv->send_video_codec);
+  fs_codec_list_destroy (priv->recv_audio_codecs);
+  fs_codec_list_destroy (priv->recv_video_codecs);
+  fs_candidate_destroy (priv->audio_remote_candidate);
+  fs_candidate_destroy (priv->video_remote_candidate);
+  fs_candidate_destroy (priv->audio_local_candidate);
+  fs_candidate_destroy (priv->video_local_candidate);
+
+  if (G_OBJECT_CLASS (empathy_streamed_media_handler_parent_class)->finalize)
+    G_OBJECT_CLASS (empathy_streamed_media_handler_parent_class)->finalize (object);
+}
+
+static void
+empathy_streamed_media_handler_init (EmpathyStreamedMediaHandler *obj)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (obj,
+    EMPATHY_TYPE_STREAMED_MEDIA_HANDLER, EmpathyStreamedMediaHandlerPriv);
+
+  obj->priv = priv;
+}
+
+static void
+empathy_streamed_media_handler_constructed (GObject *object)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (object);
+
+  if (priv->contact == NULL)
+    {
+      g_object_get (priv->call, "contact", &(priv->contact), NULL);
+    }
+}
+
+static void
+empathy_streamed_media_handler_set_property (GObject *object,
+  guint property_id, const GValue *value, GParamSpec *pspec)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (object);
+
+  switch (property_id)
+    {
+      case PROP_CONTACT:
+        priv->contact = g_value_dup_object (value);
+        break;
+      case PROP_TP_STREAMED_MEDIA:
+        priv->call = g_value_dup_object (value);
+        break;
+      case PROP_INITIAL_AUDIO:
+        priv->initial_audio = g_value_get_boolean (value);
+        break;
+      case PROP_INITIAL_VIDEO:
+        priv->initial_video = g_value_get_boolean (value);
+        break;
+      default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+    }
+}
+
+static void
+empathy_streamed_media_handler_get_property (GObject *object,
+  guint property_id, GValue *value, GParamSpec *pspec)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (object);
+
+  switch (property_id)
+    {
+      case PROP_CONTACT:
+        g_value_set_object (value, priv->contact);
+        break;
+      case PROP_TP_STREAMED_MEDIA:
+        g_value_set_object (value, priv->call);
+        break;
+      case PROP_INITIAL_AUDIO:
+        g_value_set_boolean (value, priv->initial_audio);
+        break;
+      case PROP_INITIAL_VIDEO:
+        g_value_set_boolean (value, priv->initial_video);
+        break;
+      case PROP_SEND_AUDIO_CODEC:
+        g_value_set_boxed (value, priv->send_audio_codec);
+        break;
+      case PROP_SEND_VIDEO_CODEC:
+        g_value_set_boxed (value, priv->send_video_codec);
+        break;
+      case PROP_RECV_AUDIO_CODECS:
+        g_value_set_boxed (value, priv->recv_audio_codecs);
+        break;
+      case PROP_RECV_VIDEO_CODECS:
+        g_value_set_boxed (value, priv->recv_video_codecs);
+        break;
+      case PROP_AUDIO_REMOTE_CANDIDATE:
+        g_value_set_boxed (value, priv->audio_remote_candidate);
+        break;
+      case PROP_VIDEO_REMOTE_CANDIDATE:
+        g_value_set_boxed (value, priv->video_remote_candidate);
+        break;
+      case PROP_AUDIO_LOCAL_CANDIDATE:
+        g_value_set_boxed (value, priv->audio_local_candidate);
+        break;
+      case PROP_VIDEO_LOCAL_CANDIDATE:
+        g_value_set_boxed (value, priv->video_local_candidate);
+        break;
+      default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+    }
+}
+
+
+static void
+empathy_streamed_media_handler_class_init (EmpathyStreamedMediaHandlerClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  GParamSpec *param_spec;
+
+  g_type_class_add_private (klass, sizeof (EmpathyStreamedMediaHandlerPriv));
+
+  object_class->constructed = empathy_streamed_media_handler_constructed;
+  object_class->set_property = empathy_streamed_media_handler_set_property;
+  object_class->get_property = empathy_streamed_media_handler_get_property;
+  object_class->dispose = empathy_streamed_media_handler_dispose;
+  object_class->finalize = empathy_streamed_media_handler_finalize;
+
+  param_spec = g_param_spec_object ("contact",
+    "contact", "The remote contact",
+    EMPATHY_TYPE_CONTACT,
+    G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_CONTACT, param_spec);
+
+  param_spec = g_param_spec_object ("tp-call",
+    "tp-call", "The calls channel wrapper",
+    EMPATHY_TYPE_TP_STREAMED_MEDIA,
+    G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_TP_STREAMED_MEDIA, param_spec);
+
+  param_spec = g_param_spec_boolean ("initial-audio",
+    "initial-audio", "Whether the call should start with audio",
+    TRUE,
+    G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_INITIAL_AUDIO,
+      param_spec);
+
+  param_spec = g_param_spec_boolean ("initial-video",
+    "initial-video", "Whether the call should start with video",
+    FALSE,
+    G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_INITIAL_VIDEO,
+    param_spec);
+
+  param_spec = g_param_spec_boxed ("send-audio-codec",
+    "send audio codec", "Codec used to encode the outgoing video stream",
+    FS_TYPE_CODEC,
+    G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_SEND_AUDIO_CODEC,
+    param_spec);
+
+  param_spec = g_param_spec_boxed ("send-video-codec",
+    "send video codec", "Codec used to encode the outgoing video stream",
+    FS_TYPE_CODEC,
+    G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_SEND_VIDEO_CODEC,
+    param_spec);
+
+  param_spec = g_param_spec_boxed ("recv-audio-codecs",
+    "recvs audio codec", "Codecs used to decode the incoming audio stream",
+    FS_TYPE_CODEC_LIST,
+    G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_RECV_AUDIO_CODECS,
+    param_spec);
+
+  param_spec = g_param_spec_boxed ("recv-video-codecs",
+    "recvs video codec", "Codecs used to decode the incoming video stream",
+    FS_TYPE_CODEC_LIST,
+    G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class, PROP_RECV_VIDEO_CODECS,
+    param_spec);
+
+  param_spec = g_param_spec_boxed ("audio-remote-candidate",
+    "audio remote candidate",
+    "Remote candidate used for the audio stream",
+    FS_TYPE_CANDIDATE,
+    G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class,
+      PROP_AUDIO_REMOTE_CANDIDATE, param_spec);
+
+  param_spec = g_param_spec_boxed ("video-remote-candidate",
+    "video remote candidate",
+    "Remote candidate used for the video stream",
+    FS_TYPE_CANDIDATE,
+    G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class,
+      PROP_VIDEO_REMOTE_CANDIDATE, param_spec);
+
+  param_spec = g_param_spec_boxed ("audio-local-candidate",
+    "audio local candidate",
+    "Local candidate used for the audio stream",
+    FS_TYPE_CANDIDATE,
+    G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class,
+      PROP_AUDIO_REMOTE_CANDIDATE, param_spec);
+
+  param_spec = g_param_spec_boxed ("video-local-candidate",
+    "video local candidate",
+    "Local candidate used for the video stream",
+    FS_TYPE_CANDIDATE,
+    G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+  g_object_class_install_property (object_class,
+      PROP_VIDEO_REMOTE_CANDIDATE, param_spec);
+
+  signals[CONFERENCE_ADDED] =
+    g_signal_new ("conference-added", G_TYPE_FROM_CLASS (klass),
+      G_SIGNAL_RUN_LAST, 0, NULL, NULL,
+      g_cclosure_marshal_VOID__OBJECT,
+      G_TYPE_NONE,
+      1, FS_TYPE_CONFERENCE);
+
+  signals[SRC_PAD_ADDED] =
+    g_signal_new ("src-pad-added", G_TYPE_FROM_CLASS (klass),
+      G_SIGNAL_RUN_LAST, 0, NULL, NULL,
+      _empathy_marshal_BOOLEAN__OBJECT_UINT,
+      G_TYPE_BOOLEAN,
+      2, GST_TYPE_PAD, G_TYPE_UINT);
+
+  signals[SINK_PAD_ADDED] =
+    g_signal_new ("sink-pad-added", G_TYPE_FROM_CLASS (klass),
+      G_SIGNAL_RUN_LAST, 0, NULL, NULL,
+      _empathy_marshal_BOOLEAN__OBJECT_UINT,
+      G_TYPE_BOOLEAN,
+      2, GST_TYPE_PAD, G_TYPE_UINT);
+
+  signals[REQUEST_RESOURCE] =
+    g_signal_new ("request-resource", G_TYPE_FROM_CLASS (klass),
+      G_SIGNAL_RUN_LAST, 0,
+      g_signal_accumulator_true_handled, NULL,
+      _empathy_marshal_BOOLEAN__UINT_UINT,
+      G_TYPE_BOOLEAN, 2, G_TYPE_UINT, G_TYPE_UINT);
+
+  signals[CLOSED] =
+    g_signal_new ("closed", G_TYPE_FROM_CLASS (klass),
+      G_SIGNAL_RUN_LAST, 0, NULL, NULL,
+      g_cclosure_marshal_VOID__VOID,
+      G_TYPE_NONE,
+      0);
+
+  signals[STREAM_CLOSED] =
+    g_signal_new ("stream-closed", G_TYPE_FROM_CLASS (klass),
+      G_SIGNAL_RUN_LAST, 0, NULL, NULL,
+      g_cclosure_marshal_VOID__OBJECT,
+      G_TYPE_NONE, 1, TF_TYPE_STREAM);
+
+  signals[CANDIDATES_CHANGED] =
+    g_signal_new ("candidates-changed", G_TYPE_FROM_CLASS (klass),
+      G_SIGNAL_RUN_LAST, 0, NULL, NULL,
+      g_cclosure_marshal_VOID__UINT,
+      G_TYPE_NONE, 1, G_TYPE_UINT);
+}
+
+/**
+ * empathy_streamed_media_handler_new_for_contact:
+ * @contact: an #EmpathyContact
+ *
+ * Creates a new #EmpathyStreamedMediaHandler with contact @contact.
+ *
+ * Return value: a new #EmpathyStreamedMediaHandler
+ */
+EmpathyStreamedMediaHandler *
+empathy_streamed_media_handler_new_for_contact (EmpathyContact *contact)
+{
+  return EMPATHY_STREAMED_MEDIA_HANDLER (g_object_new (EMPATHY_TYPE_STREAMED_MEDIA_HANDLER,
+    "contact", contact, NULL));
+}
+
+EmpathyStreamedMediaHandler *
+empathy_streamed_media_handler_new_for_channel (EmpathyTpStreamedMedia *call)
+{
+  return EMPATHY_STREAMED_MEDIA_HANDLER (g_object_new (EMPATHY_TYPE_STREAMED_MEDIA_HANDLER,
+    "tp-call", call,
+    "initial-video", empathy_tp_streamed_media_is_receiving_video (call),
+    NULL));
+}
+
+static void
+update_sending_codec (EmpathyStreamedMediaHandler *self,
+    FsCodec *codec,
+    FsSession *session)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (self);
+  FsMediaType type;
+
+  if (codec == NULL || session == NULL)
+    return;
+
+  g_object_get (session, "media-type", &type, NULL);
+
+  if (type == FS_MEDIA_TYPE_AUDIO)
+    {
+      priv->send_audio_codec = fs_codec_copy (codec);
+      g_object_notify (G_OBJECT (self), "send-audio-codec");
+    }
+  else if (type == FS_MEDIA_TYPE_VIDEO)
+    {
+      priv->send_video_codec = fs_codec_copy (codec);
+      g_object_notify (G_OBJECT (self), "send-video-codec");
+    }
+}
+
+static void
+update_receiving_codec (EmpathyStreamedMediaHandler *self,
+    GList *codecs,
+    FsStream *stream)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (self);
+  FsSession *session;
+  FsMediaType type;
+
+  if (codecs == NULL || stream == NULL)
+    return;
+
+  g_object_get (stream, "session", &session, NULL);
+  if (session == NULL)
+    return;
+
+  g_object_get (session, "media-type", &type, NULL);
+
+  if (type == FS_MEDIA_TYPE_AUDIO)
+    {
+      priv->recv_audio_codecs = fs_codec_list_copy (codecs);
+      g_object_notify (G_OBJECT (self), "recv-audio-codecs");
+    }
+  else if (type == FS_MEDIA_TYPE_VIDEO)
+    {
+      priv->recv_video_codecs = fs_codec_list_copy (codecs);
+      g_object_notify (G_OBJECT (self), "recv-video-codecs");
+    }
+
+  g_object_unref (session);
+}
+
+static void
+update_candidates (EmpathyStreamedMediaHandler *self,
+    FsCandidate *remote_candidate,
+    FsCandidate *local_candidate,
+    FsStream *stream)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (self);
+  FsSession *session;
+  FsMediaType type;
+
+  if (stream == NULL)
+    return;
+
+  g_object_get (stream, "session", &session, NULL);
+  if (session == NULL)
+    return;
+
+  g_object_get (session, "media-type", &type, NULL);
+
+  if (type == FS_MEDIA_TYPE_AUDIO)
+    {
+      if (remote_candidate != NULL)
+        {
+          fs_candidate_destroy (priv->audio_remote_candidate);
+          priv->audio_remote_candidate = fs_candidate_copy (remote_candidate);
+          g_object_notify (G_OBJECT (self), "audio-remote-candidate");
+        }
+
+      if (local_candidate != NULL)
+        {
+          fs_candidate_destroy (priv->audio_local_candidate);
+          priv->audio_local_candidate = fs_candidate_copy (local_candidate);
+          g_object_notify (G_OBJECT (self), "audio-local-candidate");
+        }
+
+      g_signal_emit (G_OBJECT (self), signals[CANDIDATES_CHANGED], 0,
+          FS_MEDIA_TYPE_AUDIO);
+    }
+  else if (type == FS_MEDIA_TYPE_VIDEO)
+    {
+      if (remote_candidate != NULL)
+        {
+          fs_candidate_destroy (priv->video_remote_candidate);
+          priv->video_remote_candidate = fs_candidate_copy (remote_candidate);
+          g_object_notify (G_OBJECT (self), "video-remote-candidate");
+        }
+
+      if (local_candidate != NULL)
+        {
+          fs_candidate_destroy (priv->video_local_candidate);
+          priv->video_local_candidate = fs_candidate_copy (local_candidate);
+          g_object_notify (G_OBJECT (self), "video-local-candidate");
+        }
+
+      g_signal_emit (G_OBJECT (self), signals[CANDIDATES_CHANGED], 0,
+          FS_MEDIA_TYPE_VIDEO);
+    }
+
+  g_object_unref (session);
+}
+
+void
+empathy_streamed_media_handler_bus_message (EmpathyStreamedMediaHandler *handler,
+  GstBus *bus, GstMessage *message)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (handler);
+  const GstStructure *s = gst_message_get_structure (message);
+
+  if (priv->tfchannel == NULL)
+    return;
+
+  if (s != NULL &&
+      gst_structure_has_name (s, "farsight-send-codec-changed"))
+    {
+      const GValue *val;
+      FsCodec *codec;
+      FsSession *session;
+
+      val = gst_structure_get_value (s, "codec");
+      codec = g_value_get_boxed (val);
+
+      val = gst_structure_get_value (s, "session");
+      session = g_value_get_object (val);
+
+      update_sending_codec (handler, codec, session);
+    }
+  else if (s != NULL &&
+      gst_structure_has_name (s, "farsight-recv-codecs-changed"))
+    {
+      const GValue *val;
+      GList *codecs;
+      FsStream *stream;
+
+      val = gst_structure_get_value (s, "codecs");
+      codecs = g_value_get_boxed (val);
+
+      val = gst_structure_get_value (s, "stream");
+      stream = g_value_get_object (val);
+
+      update_receiving_codec (handler, codecs, stream);
+    }
+  else if (s != NULL &&
+      gst_structure_has_name (s, "farsight-new-active-candidate-pair"))
+    {
+      const GValue *val;
+      FsCandidate *remote_candidate, *local_candidate;
+      FsStream *stream;
+
+      val = gst_structure_get_value (s, "remote-candidate");
+      remote_candidate = g_value_get_boxed (val);
+
+      val = gst_structure_get_value (s, "local-candidate");
+      local_candidate = g_value_get_boxed (val);
+
+      val = gst_structure_get_value (s, "stream");
+      stream = g_value_get_object (val);
+
+      update_candidates (handler, remote_candidate, local_candidate, stream);
+    }
+
+  tf_channel_bus_message (priv->tfchannel, message);
+}
+
+static void
+empathy_streamed_media_handler_tf_channel_session_created_cb (TfChannel *tfchannel,
+  FsConference *conference, FsParticipant *participant,
+  EmpathyStreamedMediaHandler *self)
+{
+  g_signal_emit (G_OBJECT (self), signals[CONFERENCE_ADDED], 0,
+    GST_ELEMENT (conference));
+}
+
+static gboolean
+src_pad_added_error_idle (gpointer data)
+{
+  TfStream *stream = data;
+
+  tf_stream_error (stream, TP_MEDIA_STREAM_ERROR_MEDIA_ERROR,
+      "Could not link sink");
+  g_object_unref (stream);
+
+  return FALSE;
+}
+
+static void
+empathy_streamed_media_handler_tf_stream_src_pad_added_cb (TfStream *stream,
+  GstPad *pad, FsCodec *codec, EmpathyStreamedMediaHandler  *handler)
+{
+  guint media_type;
+  gboolean retval;
+
+  g_object_get (stream, "media-type", &media_type, NULL);
+
+  g_signal_emit (G_OBJECT (handler), signals[SRC_PAD_ADDED], 0,
+      pad, media_type, &retval);
+
+  if (!retval)
+    g_idle_add (src_pad_added_error_idle, g_object_ref (stream));
+}
+
+
+static gboolean
+empathy_streamed_media_handler_tf_stream_request_resource_cb (TfStream *stream,
+  guint direction, EmpathyTpStreamedMedia *call)
+{
+  gboolean ret;
+  guint media_type;
+
+  g_object_get (G_OBJECT (stream), "media-type", &media_type, NULL);
+
+  g_signal_emit (G_OBJECT (call),
+    signals[REQUEST_RESOURCE], 0, media_type, direction, &ret);
+
+  return ret;
+}
+
+static void
+empathy_streamed_media_handler_tf_stream_closed_cb (TfStream *stream,
+  EmpathyStreamedMediaHandler *handler)
+{
+  g_signal_emit (handler, signals[STREAM_CLOSED], 0, stream);
+}
+
+static void
+empathy_streamed_media_handler_tf_channel_stream_created_cb (TfChannel *tfchannel,
+  TfStream *stream, EmpathyStreamedMediaHandler *handler)
+{
+  guint media_type;
+  GstPad *spad;
+  gboolean retval;
+  FsStream *fs_stream;
+  GList *codecs;
+  FsSession *session;
+  FsCodec *codec;
+
+  g_signal_connect (stream, "src-pad-added",
+      G_CALLBACK (empathy_streamed_media_handler_tf_stream_src_pad_added_cb), handler);
+  g_signal_connect (stream, "request-resource",
+      G_CALLBACK (empathy_streamed_media_handler_tf_stream_request_resource_cb),
+        handler);
+  g_signal_connect (stream, "closed",
+      G_CALLBACK (empathy_streamed_media_handler_tf_stream_closed_cb), handler);
+
+  g_object_get (stream, "media-type", &media_type,
+    "sink-pad", &spad, NULL);
+
+  g_signal_emit (G_OBJECT (handler), signals[SINK_PAD_ADDED], 0,
+      spad, media_type, &retval);
+
+ if (!retval)
+      tf_stream_error (stream, TP_MEDIA_STREAM_ERROR_MEDIA_ERROR,
+          "Could not link source");
+
+ /* Get sending codec */
+ g_object_get (stream, "farsight-session", &session, NULL);
+ g_object_get (session, "current-send-codec", &codec, NULL);
+
+ update_sending_codec (handler, codec, session);
+
+ tp_clear_object (&session);
+ tp_clear_object (&codec);
+
+ /* Get receiving codec */
+ g_object_get (stream, "farsight-stream", &fs_stream, NULL);
+ g_object_get (fs_stream, "current-recv-codecs", &codecs, NULL);
+
+ update_receiving_codec (handler, codecs, fs_stream);
+
+ fs_codec_list_destroy (codecs);
+ tp_clear_object (&fs_stream);
+
+ gst_object_unref (spad);
+}
+
+static void
+empathy_streamed_media_handler_tf_channel_closed_cb (TfChannel *tfchannel,
+  EmpathyStreamedMediaHandler *handler)
+{
+  g_signal_emit (G_OBJECT (handler), signals[CLOSED], 0);
+}
+
+static GList *
+empathy_streamed_media_handler_tf_channel_codec_config_cb (TfChannel *channel,
+  guint stream_id, FsMediaType media_type, guint direction, gpointer user_data)
+{
+  gchar *filename = empathy_file_lookup ("codec-preferences", "data");
+  GList *codecs;
+  GError *error = NULL;
+
+  codecs = fs_codec_list_from_keyfile (filename, &error);
+  g_free (filename);
+
+  if (!codecs)
+    {
+      g_warning ("No codec-preferences file: %s",
+          error ? error->message : "No error message");
+    }
+  g_clear_error (&error);
+
+  return codecs;
+}
+
+static void
+empathy_streamed_media_handler_start_tpfs (EmpathyStreamedMediaHandler *self)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (self);
+  TpChannel *channel;
+
+  g_object_get (priv->call, "channel", &channel, NULL);
+
+  g_assert (channel != NULL);
+
+  priv->tfchannel = tf_channel_new (channel);
+
+  /* Set up the telepathy farsight channel */
+  g_signal_connect (priv->tfchannel, "session-created",
+      G_CALLBACK (empathy_streamed_media_handler_tf_channel_session_created_cb), self);
+  g_signal_connect (priv->tfchannel, "stream-created",
+      G_CALLBACK (empathy_streamed_media_handler_tf_channel_stream_created_cb), self);
+  g_signal_connect (priv->tfchannel, "closed",
+      G_CALLBACK (empathy_streamed_media_handler_tf_channel_closed_cb), self);
+  g_signal_connect (priv->tfchannel, "stream-get-codec-config",
+      G_CALLBACK (empathy_streamed_media_handler_tf_channel_codec_config_cb), self);
+
+  g_object_unref (channel);
+}
+
+static void
+empathy_streamed_media_handler_request_cb (GObject *source,
+    GAsyncResult *result,
+    gpointer user_data)
+{
+  EmpathyStreamedMediaHandler *self = EMPATHY_STREAMED_MEDIA_HANDLER (user_data);
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (self);
+  TpChannel *channel;
+  GError *error = NULL;
+  TpAccountChannelRequest *req = TP_ACCOUNT_CHANNEL_REQUEST (source);
+  TpAccount *account;
+
+  channel = tp_account_channel_request_create_and_handle_channel_finish (req,
+      result, NULL, &error);
+  if (channel == NULL)
+    {
+      DEBUG ("Failed to create the channel: %s", error->message);
+      g_error_free (error);
+      return;
+    }
+
+  account = tp_account_channel_request_get_account (req);
+
+  priv->call = empathy_tp_streamed_media_new (account, channel);
+
+  g_object_notify (G_OBJECT (self), "tp-call");
+
+  empathy_streamed_media_handler_start_tpfs (self);
+
+  g_object_unref (channel);
+}
+
+void
+empathy_streamed_media_handler_start_call (EmpathyStreamedMediaHandler *handler,
+    gint64 timestamp)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (handler);
+  TpAccountChannelRequest *req;
+  TpAccount *account;
+  GHashTable *request;
+
+  if (priv->call != NULL)
+    {
+      empathy_streamed_media_handler_start_tpfs (handler);
+      empathy_tp_streamed_media_accept_incoming_call (priv->call);
+      return;
+    }
+
+  /* No TpStreamedMedia object (we are redialing). Request a new media channel that
+   * will be used to create a new EmpathyTpStreamedMedia. */
+  g_assert (priv->contact != NULL);
+
+  account = empathy_contact_get_account (priv->contact);
+  request = empathy_call_factory_create_request (priv->contact,
+      priv->initial_audio, priv->initial_video);
+
+  req = tp_account_channel_request_new (account, request, timestamp);
+
+  tp_account_channel_request_create_and_handle_channel_async (req, NULL,
+      empathy_streamed_media_handler_request_cb, handler);
+
+  g_object_unref (req);
+  g_hash_table_unref (request);
+}
+
+/**
+ * empathy_streamed_media_handler_stop_call:
+ * @handler: an #EmpathyStreamedMediaHandler
+ *
+ * Closes the #EmpathyStreamedMediaHandler's call and frees its resources.
+ */
+void
+empathy_streamed_media_handler_stop_call (EmpathyStreamedMediaHandler *handler)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (handler);
+
+  if (priv->call != NULL)
+    {
+      empathy_tp_streamed_media_leave (priv->call);
+      g_object_unref (priv->call);
+    }
+
+  priv->call = NULL;
+}
+
+/**
+ * empathy_streamed_media_handler_has_initial_video:
+ * @handler: an #EmpathyStreamedMediaHandler
+ *
+ * Return %TRUE if the call managed by this #EmpathyStreamedMediaHandler was
+ * created with video enabled
+ *
+ * Return value: %TRUE if the call was created as a video conversation.
+ */
+gboolean
+empathy_streamed_media_handler_has_initial_video (EmpathyStreamedMediaHandler *handler)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (handler);
+
+  return priv->initial_video;
+}
+
+FsCodec *
+empathy_streamed_media_handler_get_send_audio_codec (EmpathyStreamedMediaHandler *self)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (self);
+
+  return priv->send_audio_codec;
+}
+
+FsCodec *
+empathy_streamed_media_handler_get_send_video_codec (EmpathyStreamedMediaHandler *self)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (self);
+
+  return priv->send_video_codec;
+}
+
+GList *
+empathy_streamed_media_handler_get_recv_audio_codecs (EmpathyStreamedMediaHandler *self)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (self);
+
+  return priv->recv_audio_codecs;
+}
+
+GList *
+empathy_streamed_media_handler_get_recv_video_codecs (EmpathyStreamedMediaHandler *self)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (self);
+
+  return priv->recv_video_codecs;
+}
+
+FsCandidate *
+empathy_streamed_media_handler_get_audio_remote_candidate (
+    EmpathyStreamedMediaHandler *self)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (self);
+
+  return priv->audio_remote_candidate;
+}
+
+FsCandidate *
+empathy_streamed_media_handler_get_audio_local_candidate (
+    EmpathyStreamedMediaHandler *self)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (self);
+
+  return priv->audio_local_candidate;
+}
+
+FsCandidate *
+empathy_streamed_media_handler_get_video_remote_candidate (
+    EmpathyStreamedMediaHandler *self)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (self);
+
+  return priv->video_remote_candidate;
+}
+
+FsCandidate *
+empathy_streamed_media_handler_get_video_local_candidate (
+    EmpathyStreamedMediaHandler *self)
+{
+  EmpathyStreamedMediaHandlerPriv *priv = GET_PRIV (self);
+
+  return priv->video_local_candidate;
+}