GList *
codec_associations_to_codecs_internal (GList *codec_associations,
gboolean include_config, gboolean send_codecs)
{
GList *codecs = NULL;
GList *item = NULL;
for (item = g_list_first (codec_associations);
item;
item = g_list_next (item))
{
CodecAssociation *ca = item->data;
if (!ca->disable && !ca->reserved && !ca->recv_only && ca->codec)
{
FsCodec *codec = NULL;
if (send_codecs)
codec = fs_codec_copy (ca->send_codec);
else if (include_config)
codec = fs_codec_copy (ca->codec);
else
codec = codec_copy_filtered (ca->codec, FS_PARAM_TYPE_CONFIG);
codecs = g_list_append (codecs, codec);
}
}
return codecs;
}
static CodecAssociation *
codec_association_copy (CodecAssociation *ca)
{
CodecAssociation *newca = g_slice_new (CodecAssociation);
g_return_val_if_fail (ca, NULL);
memcpy (newca, ca, sizeof(CodecAssociation));
newca->codec = fs_codec_copy (ca->codec);
newca->send_codec = fs_codec_copy (ca->send_codec);
newca->send_profile = g_strdup (ca->send_profile);
newca->recv_profile = g_strdup (ca->recv_profile);
return newca;
}
static gboolean
match_send_codec_no_pt (CodecAssociation *old_ca, gpointer user_data)
{
FsCodec *old_codec;
FsCodec *tmpcodec = NULL;
CodecAssociation *new_ca = user_data;
gboolean ret;
if (old_ca->disable || old_ca->reserved)
return FALSE;
if (new_ca->send_codec->id == old_ca->send_codec->id)
{
old_codec = old_ca->send_codec;
}
else
{
tmpcodec = old_codec = fs_codec_copy (old_ca->send_codec);
old_codec->id = new_ca->codec->id;
}
ret = fs_codec_are_equal (old_codec, new_ca->codec);
fs_codec_destroy (tmpcodec);
return ret;
}
static GList *
empathy_call_handler_tf_channel_codec_config_get_defaults (FsCodec *codecs)
{
GList *l = NULL;
int i;
for (i = 0; codecs[i].encoding_name != NULL; i++)
l = g_list_append (l, fs_codec_copy (codecs + i));
return l;
}
static void
_src_pad_added (FsStream *stream, GstPad *pad, FsCodec *codec,
gpointer user_data)
{
struct SimpleTestStream *st = user_data;
GstElement *fakesink = gst_element_factory_make ("fakesink", NULL);
GstPad *fakesink_pad = NULL;
GstPadLinkReturn ret;
FsCodec *codeccopy = fs_codec_copy (codec);
gchar *str = NULL;
g_assert (fakesink);
g_object_set (fakesink,
"signal-handoffs", TRUE,
"sync", TRUE,
"async", TRUE,
NULL);
ts_fail_if (codec->encoding_name == NULL,
"Got invalid codec without an encoding_name with id %u"
" and clock_rate %u", codec->id, codec->clock_rate);
g_object_set_data (G_OBJECT (fakesink), "codec", codeccopy);
g_object_weak_ref (G_OBJECT (fakesink),
(GWeakNotify) fs_codec_destroy, codeccopy);
g_signal_connect (fakesink, "handoff", st->handoff_handler, st);
gst_bin_add (GST_BIN (st->dat->pipeline), fakesink);
fakesink_pad = gst_element_get_static_pad (fakesink, "sink");
ret = gst_pad_link (pad, fakesink_pad);
gst_object_unref (fakesink_pad);
ts_fail_if (GST_PAD_LINK_FAILED(ret), "Could not link fakesink");
ts_fail_if (gst_element_set_state (fakesink, GST_STATE_PLAYING) ==
GST_STATE_CHANGE_FAILURE, "Could not set the fakesink to playing");
str = fs_codec_to_string (codec);
GST_DEBUG ("%d:%d: Added Fakesink for codec %s", st->dat->id, st->target->id,
str);
g_free (str);
if (max_src_pads > 1)
ts_fail_unless (count_stream_pads (stream) <= max_src_pads);
else
ts_fail_unless (count_stream_pads (stream) == 1);
}
/**
* fs_codec_list_copy:
* @codec_list: (transfer none) (element-type FsCodec):
* a GList of #FsCodec to copy
*
* Copies a list of #FsCodec structures.
*
* Returns: (element-type FsCodec) (transfer full): The new list.
*/
GList *
fs_codec_list_copy (const GList *codec_list)
{
GQueue copy = G_QUEUE_INIT;
const GList *lp;
for (lp = codec_list; lp; lp = g_list_next (lp)) {
FsCodec *codec = (FsCodec *) lp->data;
g_queue_push_tail (©, fs_codec_copy (codec));
}
return copy.head;
}
/**
* fs_codec_list_copy:
* @codec_list: a GList of #FsCodec to copy
*
* Copies a list of #FsCodec structures.
*
* Returns: The new list.
*/
GList *
fs_codec_list_copy (const GList *codec_list)
{
GList *copy = NULL;
const GList *lp;
FsCodec *codec;
for (lp = codec_list; lp; lp = g_list_next (lp)) {
codec = (FsCodec *) lp->data;
/* prepend then reverse the list for efficiency */
copy = g_list_prepend (copy, fs_codec_copy (codec));
}
copy = g_list_reverse (copy);
return copy;
}
static void
update_sending_codec (EmpathyCallHandler *self,
FsCodec *codec,
FsSession *session)
{
EmpathyCallHandlerPriv *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");
}
}
GList *
fs_rtp_special_sources_get_codecs_locked (GList *special_sources,
GList *codec_associations, FsCodec *main_codec)
{
GList *result = NULL;
for (; special_sources; special_sources = special_sources->next)
{
FsRtpSpecialSource *source = special_sources->data;
if (main_codec->id != source->codec->id)
{
CodecAssociation *ca =
lookup_codec_association_by_pt (codec_associations, source->codec->id);
result = g_list_prepend (result, fs_codec_copy (ca->codec));
}
}
result = g_list_reverse (result);
return result;
}
static void
fs_rtp_stream_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
FsRtpStream *self = FS_RTP_STREAM (object);
FsRtpSession *session = fs_rtp_stream_get_session (self, NULL);
if (!session)
return;
switch (prop_id) {
case PROP_REMOTE_CODECS:
FS_RTP_SESSION_LOCK (session);
g_value_set_boxed (value, self->remote_codecs);
FS_RTP_SESSION_UNLOCK (session);
break;
case PROP_NEGOTIATED_CODECS:
FS_RTP_SESSION_LOCK (session);
g_value_set_boxed (value, self->negotiated_codecs);
FS_RTP_SESSION_UNLOCK (session);
break;
case PROP_SESSION:
g_value_set_object (value, session);
break;
case PROP_PARTICIPANT:
FS_RTP_SESSION_LOCK (session);
g_value_set_object (value, self->participant);
FS_RTP_SESSION_UNLOCK (session);
break;
case PROP_DIRECTION:
g_value_set_flags (value, self->priv->direction);
break;
case PROP_CURRENT_RECV_CODECS:
{
GList *codeclist = NULL;
GList *substream_item;
FS_RTP_SESSION_LOCK (session);
for (substream_item = g_list_first (self->substreams);
substream_item;
substream_item = g_list_next (substream_item))
{
FsRtpSubStream *substream = substream_item->data;
if (substream->codec)
{
if (!_codec_list_has_codec (codeclist, substream->codec))
codeclist = g_list_append (codeclist,
fs_codec_copy (substream->codec));
}
}
g_value_take_boxed (value, codeclist);
FS_RTP_SESSION_UNLOCK (session);
}
break;
case PROP_RTP_HEADER_EXTENSIONS:
FS_RTP_SESSION_LOCK (session);
g_value_set_boxed (value, self->hdrext);
FS_RTP_SESSION_UNLOCK (session);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
g_object_unref (session);
}
GList *
negotiate_stream_codecs (
const GList *remote_codecs,
GList *current_codec_associations,
gboolean multi_stream)
{
GList *new_codec_associations = NULL;
const GList *rcodec_e = NULL;
GList *item = NULL;
GST_DEBUG ("Negotiating stream codecs (for %s)",
multi_stream ? "a single stream" : "multiple streams");
for (rcodec_e = remote_codecs;
rcodec_e;
rcodec_e = g_list_next (rcodec_e)) {
FsCodec *remote_codec = rcodec_e->data;
FsCodec *nego_codec = NULL;
FsCodec *nego_send_codec = NULL;
CodecAssociation *old_ca = NULL;
gchar *tmp = fs_codec_to_string (remote_codec);
GST_DEBUG ("Remote codec %s", tmp);
g_free (tmp);
/* First lets try the codec that is in the same PT */
old_ca = lookup_codec_association_by_pt_list (current_codec_associations,
remote_codec->id, FALSE);
if (old_ca) {
GST_DEBUG ("Have local codec in the same PT, lets try it first");
negotiate_stream_codec (old_ca, remote_codec, multi_stream,
&nego_codec, &nego_send_codec);
}
if (!nego_codec) {
for (item = current_codec_associations;
item;
item = g_list_next (item))
{
old_ca = item->data;
if (old_ca->disable || old_ca->reserved)
continue;
negotiate_stream_codec (old_ca, remote_codec, multi_stream,
&nego_codec, &nego_send_codec);
if (nego_codec)
{
/* If we have multiple streams with codecs,
* then priorize the local IDs */
if (multi_stream)
nego_send_codec->id = nego_codec->id = old_ca->codec->id;
break;
}
}
}
if (nego_codec) {
CodecAssociation *new_ca = g_slice_new0 (CodecAssociation);
gchar *tmp;
new_ca->need_config = old_ca->need_config;
new_ca->codec = nego_codec;
new_ca->send_codec = nego_send_codec;
new_ca->blueprint = old_ca->blueprint;
new_ca->send_profile = g_strdup (old_ca->send_profile);
new_ca->recv_profile = g_strdup (old_ca->recv_profile);
tmp = fs_codec_to_string (nego_codec);
GST_DEBUG ("Negotiated codec %s", tmp);
g_free (tmp);
new_codec_associations = g_list_append (new_codec_associations,
new_ca);
} else {
gchar *tmp = fs_codec_to_string (remote_codec);
CodecAssociation *new_ca = g_slice_new0 (CodecAssociation);
GST_DEBUG ("Could not find a valid intersection... for codec %s",
tmp);
g_free (tmp);
new_ca->codec = fs_codec_copy (remote_codec);
new_ca->disable = TRUE;
new_codec_associations = g_list_append (new_codec_associations, new_ca);
}
}
/*
* Check if there is a non-disabled codec left that we can use
* for sending
*/
for (item = new_codec_associations;
item;
item = g_list_next (item))
{
CodecAssociation *ca = item->data;
if (codec_association_is_valid_for_sending (ca, TRUE))
return new_codec_associations;
}
/* Else we destroy when and return NULL.. ie .. an error */
codec_association_list_destroy (new_codec_associations);
return NULL;
}
GList *
create_local_codec_associations (
GList *blueprints,
GList *codec_prefs,
GList *current_codec_associations)
{
GList *codec_associations = NULL;
GList *bp_e = NULL;
GList *codec_pref_e = NULL;
GList *lca_e = NULL;
gboolean has_valid_codec = FALSE;
CodecAssociation *oldca = NULL;
if (blueprints == NULL)
return NULL;
GST_DEBUG ("Creating local codec associations");
/* First, lets create the original table by looking at our preferred codecs */
for (codec_pref_e = codec_prefs;
codec_pref_e;
codec_pref_e = g_list_next (codec_pref_e))
{
FsCodec *codec_pref = codec_pref_e->data;
CodecBlueprint *bp = _find_matching_blueprint (codec_pref, blueprints);
CodecAssociation *ca = NULL;
GList *bp_param_e = NULL;
/* If its a negative pref, ignore it in this stage */
if (codec_pref->id == FS_CODEC_ID_DISABLE)
continue;
/* If we want to disable a codec ID, we just insert a reserved codec assoc
* in the list
*/
if (codec_pref->id >= 0 && codec_pref->id < 128 &&
codec_pref->encoding_name &&
!g_ascii_strcasecmp (codec_pref->encoding_name, "reserve-pt"))
{
CodecAssociation *ca = g_slice_new0 (CodecAssociation);
ca->codec = fs_codec_copy (codec_pref);
ca->reserved = TRUE;
codec_associations = g_list_append (codec_associations, ca);
continue;
}
/* No matching blueprint, can't use this codec */
if (!bp &&
!fs_codec_get_optional_parameter (codec_pref, RECV_PROFILE_ARG,
NULL))
{
GST_LOG ("Could not find matching blueprint for preferred codec %s/%s",
fs_media_type_to_string (codec_pref->media_type),
codec_pref->encoding_name);
continue;
}
/* Now lets see if there is an existing codec that matches this preference
*/
if (codec_pref->id == FS_CODEC_ID_ANY)
{
oldca = lookup_codec_association_custom_internal (
current_codec_associations, TRUE,
match_original_codec_and_codec_pref, codec_pref);
}
else
{
oldca = lookup_codec_association_by_pt_list (current_codec_associations,
codec_pref->id, FALSE);
if (oldca && oldca->reserved)
oldca = NULL;
}
/* In this case, we have a matching codec association, lets keep the
* payload type from it
*/
if (oldca)
{
FsCodec *codec = sdp_negotiate_codec (
oldca->codec, FS_PARAM_TYPE_BOTH | FS_PARAM_TYPE_CONFIG,
codec_pref, FS_PARAM_TYPE_ALL);
FsCodec *send_codec;
if (codec)
{
fs_codec_destroy (codec);
send_codec = sdp_negotiate_codec (
oldca->send_codec, FS_PARAM_TYPE_SEND,
codec_pref, FS_PARAM_TYPE_SEND | FS_PARAM_TYPE_SEND_AVOID_NEGO);
if (send_codec)
fs_codec_destroy (send_codec);
else
oldca = NULL;
}
else
{
oldca = NULL;
}
}
ca = g_slice_new0 (CodecAssociation);
ca->blueprint = bp;
ca->codec = fs_codec_copy (codec_pref);
codec_remove_parameter (ca->codec, SEND_PROFILE_ARG);
codec_remove_parameter (ca->codec, RECV_PROFILE_ARG);
ca->send_codec = codec_copy_filtered (codec_pref, FS_PARAM_TYPE_CONFIG);
codec_remove_parameter (ca->send_codec, SEND_PROFILE_ARG);
codec_remove_parameter (ca->send_codec, RECV_PROFILE_ARG);
if (oldca)
ca->send_codec->id = ca->codec->id = oldca->codec->id;
ca->send_profile = dup_param_value (codec_pref, SEND_PROFILE_ARG);
ca->recv_profile = dup_param_value (codec_pref, RECV_PROFILE_ARG);
if (bp)
{
/* Codec pref does not come with a number, but
* The blueprint has its own id, lets use it */
if (ca->codec->id == FS_CODEC_ID_ANY &&
(bp->codec->id >= 0 || bp->codec->id < 128))
{
ca->send_codec->id = ca->codec->id = bp->codec->id;
}
if (ca->codec->clock_rate == 0)
ca->codec->clock_rate = bp->codec->clock_rate;
if (ca->codec->channels == 0)
ca->codec->channels = bp->codec->channels;
for (bp_param_e = bp->codec->optional_params;
bp_param_e;
bp_param_e = g_list_next (bp_param_e))
{
FsCodecParameter *bp_param = bp_param_e->data;
if (fs_codec_get_optional_parameter (ca->codec, bp_param->name, NULL))
fs_codec_add_optional_parameter (ca->codec, bp_param->name,
bp_param->value);
}
}
{
gchar *tmp = fs_codec_to_string (ca->codec);
GST_LOG ("Added preferred codec %s", tmp);
g_free (tmp);
}
codec_associations = list_insert_local_ca (codec_associations, ca);
}
/* Now, only codecs with specified ids are here,
* the rest are dynamic
* Lets attribute them here */
for (lca_e = codec_associations;
lca_e;
lca_e = g_list_next (lca_e))
{
CodecAssociation *lca = lca_e->data;
if (lca->reserved)
continue;
if (lca->codec->id < 0)
{
lca->send_codec->id = lca->codec->id = _find_first_empty_dynamic_entry (
current_codec_associations, codec_associations);
if (lca->codec->id < 0)
{
GST_ERROR ("We've run out of dynamic payload types");
goto error;
}
}
}
/* Now, lets add all other codecs from the blueprints */
for (bp_e = g_list_first (blueprints); bp_e; bp_e = g_list_next (bp_e)) {
CodecBlueprint *bp = bp_e->data;
CodecAssociation *ca = NULL;
GList *tmpca_e = NULL;
gboolean next = FALSE;
FsCodec *codec;
/* Lets skip codecs that dont have all of the required informations */
if (bp->codec->clock_rate == 0)
continue;
/* Check if its already used */
for (tmpca_e = codec_associations;
tmpca_e;
tmpca_e = g_list_next (tmpca_e))
{
CodecAssociation *tmpca = tmpca_e->data;
if (tmpca->blueprint == bp)
break;
}
if (tmpca_e)
continue;
/* Check if it is disabled in the list of preferred codecs */
if (_is_disabled (codec_prefs, bp))
{
gchar *tmp = fs_codec_to_string (bp->codec);
GST_DEBUG ("Codec %s disabled by config", tmp);
g_free (tmp);
continue;
}
/* Re-use already existing codec associations with this blueprint
* if any, we only keep the PT from the old assoc
* (the rest will be regenerated by the renegotiation)
*/
for (tmpca_e = current_codec_associations;
tmpca_e;
tmpca_e = g_list_next (tmpca_e))
{
CodecAssociation *tmpca = tmpca_e->data;
if (tmpca->blueprint == bp)
{
/* Ignore reserved (we've just regenerated them )*/
if (tmpca->reserved)
continue;
/* Ignore it if there is already something for this PT */
if (lookup_codec_association_by_pt_list (codec_associations,
tmpca->codec->id, TRUE))
continue;
/* Can't keep this codec, for some reason its wrong */
codec = sdp_negotiate_codec (tmpca->codec, FS_PARAM_TYPE_CONFIG,
bp->codec, FS_PARAM_TYPE_ALL);
if (!codec)
continue;
fs_codec_destroy (codec);
ca = g_slice_new0 (CodecAssociation);
ca->blueprint = bp;
ca->codec = fs_codec_copy (bp->codec);
ca->send_codec = codec_copy_filtered (bp->codec, FS_PARAM_TYPE_CONFIG);
ca->codec->id = ca->send_codec->id = tmpca->codec->id;
codec_associations = list_insert_local_ca (codec_associations, ca);
next = TRUE;
}
}
if (next)
continue;
codec = sdp_negotiate_codec (bp->codec, FS_PARAM_TYPE_ALL,
bp->codec, FS_PARAM_TYPE_ALL);
/* If it does not negotiate against itself, there must be something wrong */
if (!codec)
continue;
fs_codec_destroy (codec);
ca = g_slice_new0 (CodecAssociation);
ca->blueprint = bp;
ca->codec = fs_codec_copy (bp->codec);
if (ca->codec->id < 0)
{
ca->codec->id = _find_first_empty_dynamic_entry (
current_codec_associations, codec_associations);
if (ca->codec->id < 0)
{
GST_WARNING ("We've run out of dynamic payload types");
goto error;
}
}
ca->send_codec = codec_copy_filtered (ca->codec, FS_PARAM_TYPE_CONFIG);
codec_associations = list_insert_local_ca (codec_associations, ca);
}
for (lca_e = codec_associations;
lca_e;
lca_e = g_list_next (lca_e))
{
CodecAssociation *ca = lca_e->data;
if (codec_association_is_valid_for_sending (ca, TRUE))
has_valid_codec = TRUE;
}
if (!has_valid_codec)
{
GST_WARNING ("All codecs disabled by preferences");
goto error;
}
return codec_associations;
error:
codec_association_list_destroy (codec_associations);
return NULL;
}
static GstElement *
fs_rtp_dtmf_sound_source_build (FsRtpSpecialSource *source,
GList *negotiated_codecs,
FsCodec *selected_codec)
{
FsCodec *telephony_codec = NULL;
GstCaps *caps = NULL;
GstPad *pad = NULL;
GstElement *dtmfsrc = NULL;
GstElement *capsfilter = NULL;
GstPad *ghostpad = NULL;
GstElement *bin = NULL;
GstElement *encoder = NULL;
GstElement *payloader = NULL;
gchar *encoder_name = NULL;
gchar *payloader_name = NULL;
telephony_codec = get_pcm_law_sound_codec (negotiated_codecs,
&encoder_name, &payloader_name);
g_return_val_if_fail (telephony_codec, NULL);
source->codec = fs_codec_copy (telephony_codec);
GST_DEBUG ("Creating dtmf sound source for " FS_CODEC_FORMAT,
FS_CODEC_ARGS (telephony_codec));
bin = gst_bin_new (NULL);
dtmfsrc = gst_element_factory_make ("dtmfsrc", NULL);
if (!dtmfsrc)
{
GST_ERROR ("Could not make rtpdtmfsrc");
goto error;
}
if (!gst_bin_add (GST_BIN (bin), dtmfsrc))
{
GST_ERROR ("Could not add rtpdtmfsrc to bin");
gst_object_unref (dtmfsrc);
goto error;
}
encoder = gst_element_factory_make (encoder_name, NULL);
if (!encoder)
{
GST_ERROR ("Could not make %s", encoder_name);
goto error;
}
if (!gst_bin_add (GST_BIN (bin), encoder))
{
GST_ERROR ("Could not add %s to bin", encoder_name);
gst_object_unref (dtmfsrc);
goto error;
}
if (!gst_element_link_pads (dtmfsrc, "src", encoder, "sink"))
{
GST_ERROR ("Could not link the rtpdtmfsrc and %s", encoder_name);
goto error;
}
payloader = gst_element_factory_make (payloader_name, NULL);
if (!payloader)
{
GST_ERROR ("Could not make %s", payloader_name);
goto error;
}
if (!gst_bin_add (GST_BIN (bin), payloader))
{
GST_ERROR ("Could not add %s to bin", payloader_name);
gst_object_unref (dtmfsrc);
goto error;
}
if (!gst_element_link_pads (encoder, "src", payloader, "sink"))
{
GST_ERROR ("Could not link the %s and %s", encoder_name, payloader_name);
goto error;
}
capsfilter = gst_element_factory_make ("capsfilter", NULL);
if (!capsfilter)
{
GST_ERROR ("Could not make capsfilter");
goto error;
}
if (!gst_bin_add (GST_BIN (bin), capsfilter))
{
GST_ERROR ("Could not add capsfilter to bin");
gst_object_unref (capsfilter);
goto error;
}
caps = fs_codec_to_gst_caps (telephony_codec);
g_object_set (capsfilter, "caps", caps, NULL);
{
gchar *str = gst_caps_to_string (caps);
GST_DEBUG ("Using caps %s for dtmf", str);
g_free (str);
}
gst_caps_unref (caps);
if (!gst_element_link_pads (payloader, "src", capsfilter, "sink"))
{
GST_ERROR ("Could not link the %s and its capsfilter", payloader_name);
goto error;
}
pad = gst_element_get_static_pad (capsfilter, "src");
if (!pad)
{
GST_ERROR ("Could not get \"src\" pad from capsfilter");
goto error;
}
ghostpad = gst_ghost_pad_new ("src", pad);
if (!ghostpad)
{
GST_ERROR ("Could not create a ghostpad for capsfilter src pad"
" for dtmfsrc");
goto error;
}
if (!gst_element_add_pad (bin, ghostpad))
{
GST_ERROR ("Could not get \"src\" ghostpad to dtmf sound source bin");
gst_object_unref (pad);
goto error;
}
gst_object_unref (pad);
return bin;
error:
gst_object_unref (bin);
return NULL;
}
/* insert given codec_cap list into list_codecs and list_codec_blueprints */
static void
parse_codec_cap_list (GList *list, FsMediaType media_type)
{
GList *walk;
CodecCap *codec_cap;
FsCodec *codec;
CodecBlueprint *codec_blueprint;
gint i;
gchar *tmp;
GstElementFactory *tmpfact;
/* go thru all common caps */
for (walk = list; walk; walk = g_list_next (walk))
{
codec_cap = (CodecCap *)(walk->data);
codec = g_slice_new0 (FsCodec);
codec->id = FS_CODEC_ID_ANY;
codec->clock_rate = 0;
for (i = 0; i < gst_caps_get_size (codec_cap->rtp_caps); i++)
{
GstStructure *structure = gst_caps_get_structure (codec_cap->rtp_caps, i);
gst_structure_foreach (structure, extract_field_data,
(gpointer) codec);
}
if (!codec->encoding_name)
{
GstStructure *caps = gst_caps_get_structure (codec_cap->rtp_caps, 0);
const gchar *encoding_name = codec->encoding_name ? codec->encoding_name
: gst_structure_get_string (caps, "encoding-name");
GST_DEBUG ("skipping codec %s/%s, no encoding name specified"
" (pt: %d clock_rate:%u",
media_type == FS_MEDIA_TYPE_AUDIO ? "audio" : "video",
encoding_name ? encoding_name : "unknown", codec->id,
codec->clock_rate);
encoding_name = NULL;
fs_codec_destroy (codec);
continue;
}
switch (codec->media_type) {
case FS_MEDIA_TYPE_VIDEO:
if (!validate_h263_codecs (codec_cap)) {
fs_codec_destroy (codec);
continue;
}
break;
case FS_MEDIA_TYPE_AUDIO:
if (!validate_amr_codecs (codec_cap)) {
fs_codec_destroy (codec);
continue;
}
break;
default:
break;
}
another:
codec_blueprint = g_slice_new0 (CodecBlueprint);
codec_blueprint->codec = codec;
codec_blueprint->media_caps = gst_caps_copy (codec_cap->caps);
codec_blueprint->rtp_caps = gst_caps_copy (codec_cap->rtp_caps);
codec_blueprint->send_pipeline_factory =
copy_element_list (codec_cap->element_list2);
codec_blueprint->receive_pipeline_factory =
copy_element_list (codec_cap->element_list1);
/* Lets add the converters at the beginning of the encoding pipelines */
if (media_type == FS_MEDIA_TYPE_VIDEO)
{
tmpfact = gst_element_factory_find ("ffmpegcolorspace");
if (tmpfact)
{
codec_blueprint->send_pipeline_factory = g_list_append (
codec_blueprint->send_pipeline_factory,
g_list_append (NULL, tmpfact));
}
tmpfact = gst_element_factory_find ("videoscale");
if (tmpfact)
{
codec_blueprint->send_pipeline_factory = g_list_append (
codec_blueprint->send_pipeline_factory,
g_list_append (NULL, tmpfact));
}
}
else if (media_type == FS_MEDIA_TYPE_AUDIO)
{
tmpfact = gst_element_factory_find ("audioconvert");
if (tmpfact)
{
codec_blueprint->send_pipeline_factory = g_list_append (
codec_blueprint->send_pipeline_factory,
g_list_append (NULL, tmpfact));
}
tmpfact = gst_element_factory_find ("audioresample");
if (tmpfact)
{
codec_blueprint->send_pipeline_factory = g_list_append (
codec_blueprint->send_pipeline_factory,
g_list_append (NULL, tmpfact));
}
tmpfact = gst_element_factory_find ("audioconvert");
if (tmpfact)
{
codec_blueprint->send_pipeline_factory = g_list_append (
codec_blueprint->send_pipeline_factory,
g_list_append (NULL, tmpfact));
}
}
/* insert new information into tables */
list_codec_blueprints[media_type] = g_list_append (
list_codec_blueprints[media_type], codec_blueprint);
GST_DEBUG ("adding codec %s with pt %d, send_pipeline %p, receive_pipeline %p",
codec->encoding_name, codec->id,
codec_blueprint->send_pipeline_factory,
codec_blueprint->receive_pipeline_factory);
tmp = gst_caps_to_string (codec_blueprint->media_caps);
GST_DEBUG ("media_caps: %s", tmp);
g_free (tmp);
tmp = gst_caps_to_string (codec_blueprint->rtp_caps);
GST_DEBUG ("rtp_caps: %s", tmp);
g_free (tmp);
debug_pipeline (codec_blueprint->send_pipeline_factory);
debug_pipeline (codec_blueprint->receive_pipeline_factory);
if (!g_ascii_strcasecmp (codec->encoding_name, "H263-1998")) {
codec = fs_codec_copy (codec);
g_free (codec->encoding_name);
codec->encoding_name = g_strdup ("H263-N800");
goto another;
}
}
}
static void
_substream_codec_changed (FsRtpSubStream *substream,
FsRtpStream *stream)
{
GList *substream_item = NULL;
GList *codeclist = NULL;
FsRtpSession *session = fs_rtp_stream_get_session (stream, NULL);
if (!session)
return;
FS_RTP_SESSION_LOCK (session);
if (!substream->codec)
{
FS_RTP_SESSION_UNLOCK (session);
g_object_unref (session);
return;
}
codeclist = g_list_prepend (NULL, fs_codec_copy (substream->codec));
for (substream_item = stream->substreams;
substream_item;
substream_item = g_list_next (substream_item))
{
FsRtpSubStream *othersubstream = substream_item->data;
if (othersubstream != substream)
{
if (othersubstream->codec)
{
if (fs_codec_are_equal (substream->codec, othersubstream->codec))
break;
if (!_codec_list_has_codec (codeclist, othersubstream->codec))
codeclist = g_list_append (codeclist,
fs_codec_copy (othersubstream->codec));
}
}
}
FS_RTP_SESSION_UNLOCK (session);
if (substream_item == NULL)
{
GstElement *conf = NULL;
g_object_notify (G_OBJECT (stream), "current-recv-codecs");
g_object_get (session, "conference", &conf, NULL);
gst_element_post_message (conf,
gst_message_new_element (GST_OBJECT (conf),
gst_structure_new ("farstream-recv-codecs-changed",
"stream", FS_TYPE_STREAM, stream,
"codecs", FS_TYPE_CODEC_LIST, codeclist,
NULL)));
gst_object_unref (conf);
}
fs_codec_list_destroy (codeclist);
g_object_unref (session);
}
gboolean
fs_rtp_sub_stream_add_output_ghostpad_unlock (FsRtpSubStream *substream,
GError **error)
{
GstPad *valve_srcpad;
gchar *padname = NULL;
GstPad *ghostpad = NULL;
FsCodec *codec = NULL;
if (fs_rtp_sub_stream_has_stopped_enter (substream))
{
FS_RTP_SESSION_UNLOCK (substream->priv->session);
return TRUE;
}
if (substream->priv->adding_output_ghostpad)
{
FS_RTP_SESSION_UNLOCK (substream->priv->session);
goto out;
}
g_assert (substream->priv->output_ghostpad == NULL);
substream->priv->adding_output_ghostpad = TRUE;
padname = g_strdup_printf ("src_%u_%u_%d", substream->priv->session->id,
substream->ssrc,
substream->pt);
FS_RTP_SESSION_UNLOCK (substream->priv->session);
valve_srcpad = gst_element_get_static_pad (substream->priv->output_valve,
"src");
g_assert (valve_srcpad);
ghostpad = gst_ghost_pad_new_from_template (padname, valve_srcpad,
gst_element_class_get_pad_template (
GST_ELEMENT_GET_CLASS (substream->priv->conference),
"src_%d_%d_%d"));
gst_object_unref (valve_srcpad);
g_free (padname);
if (!ghostpad)
{
g_set_error (error, FS_ERROR, FS_ERROR_CONSTRUCTION,
"Could not build ghostpad src_%u_%u_%d", substream->priv->session->id,
substream->ssrc, substream->pt);
goto error;
}
if (!gst_pad_set_active (ghostpad, TRUE))
{
g_set_error (error, FS_ERROR, FS_ERROR_CONSTRUCTION,
"Could not activate the src_%u_%u_%d", substream->priv->session->id,
substream->ssrc, substream->pt);
gst_object_unref (ghostpad);
goto error;
}
if (!gst_element_add_pad (GST_ELEMENT (substream->priv->conference),
ghostpad))
{
g_set_error (error, FS_ERROR, FS_ERROR_CONSTRUCTION,
"Could add build ghostpad src_%u_%u_%d to the conference",
substream->priv->session->id, substream->ssrc, substream->pt);
gst_object_unref (ghostpad);
goto error;
}
FS_RTP_SESSION_LOCK (substream->priv->session);
substream->priv->output_ghostpad = ghostpad;
GST_DEBUG ("Src pad added on substream for ssrc:%X pt:%u " FS_CODEC_FORMAT,
substream->ssrc, substream->pt,
FS_CODEC_ARGS (substream->codec));
codec = fs_codec_copy (substream->codec);
FS_RTP_SESSION_UNLOCK (substream->priv->session);
g_signal_emit (substream, signals[SRC_PAD_ADDED], 0,
ghostpad, codec);
g_signal_emit (substream, signals[CODEC_CHANGED], 0);
fs_codec_destroy (codec);
g_object_set (substream->priv->output_valve, "drop", FALSE, NULL);
out:
fs_rtp_sub_stream_has_stopped_exit (substream);
return TRUE;
error:
substream->priv->adding_output_ghostpad = FALSE;
fs_rtp_sub_stream_has_stopped_exit (substream);
return FALSE;
}
static GstElement *
fs_rtp_dtmf_event_source_build (FsRtpSpecialSource *source,
GList *negotiated_codec_associations,
FsCodec *selected_codec)
{
FsCodec *telephony_codec = NULL;
GstCaps *caps = NULL;
GstPad *pad = NULL;
GstElement *dtmfsrc = NULL;
GstElement *capsfilter = NULL;
GstPad *ghostpad = NULL;
GstElement *bin = NULL;
telephony_codec = fs_rtp_dtmf_event_source_get_codec (
FS_RTP_SPECIAL_SOURCE_GET_CLASS(source), negotiated_codec_associations,
selected_codec);
g_return_val_if_fail (telephony_codec, NULL);
source->codec = fs_codec_copy (telephony_codec);
bin = gst_bin_new (NULL);
GST_DEBUG ("Creating telephone-event source for " FS_CODEC_FORMAT,
FS_CODEC_ARGS (telephony_codec));
dtmfsrc = gst_element_factory_make ("rtpdtmfsrc", NULL);
if (!dtmfsrc)
{
GST_ERROR ("Could not make rtpdtmfsrc");
goto error;
}
if (!gst_bin_add (GST_BIN (bin), dtmfsrc))
{
GST_ERROR ("Could not add rtpdtmfsrc to bin");
gst_object_unref (dtmfsrc);
goto error;
}
capsfilter = gst_element_factory_make ("capsfilter", NULL);
if (!capsfilter)
{
GST_ERROR ("Could not make capsfilter");
goto error;
}
if (!gst_bin_add (GST_BIN (bin), capsfilter))
{
GST_ERROR ("Could not add capsfilter to bin");
gst_object_unref (capsfilter);
goto error;
}
caps = fs_codec_to_gst_caps (telephony_codec);
g_object_set (capsfilter, "caps", caps, NULL);
{
gchar *str = gst_caps_to_string (caps);
GST_DEBUG ("Using caps %s for dtmf", str);
g_free (str);
}
gst_caps_unref (caps);
if (!gst_element_link_pads (dtmfsrc, "src", capsfilter, "sink"))
{
GST_ERROR ("Could not link the rtpdtmfsrc and its capsfilter");
goto error;
}
pad = gst_element_get_static_pad (capsfilter, "src");
if (!pad)
{
GST_ERROR ("Could not get \"src\" pad from capsfilter");
goto error;
}
ghostpad = gst_ghost_pad_new ("src", pad);
if (!ghostpad)
{
GST_ERROR ("Could not create a ghostpad for capsfilter src pad for"
" rtpdtmfsrc");
goto error;
}
if (!gst_element_add_pad (bin, ghostpad))
{
GST_ERROR ("Could not get \"src\" ghostpad to dtmf source bin");
gst_object_unref (pad);
goto error;
}
gst_object_unref (pad);
return bin;
error:
gst_object_unref (bin);
return NULL;
}