diff options
Diffstat (limited to 'libempathy/empathy-streamed-media-handler.c')
| -rw-r--r-- | libempathy/empathy-streamed-media-handler.c | 924 |
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; +} |