static GstPad *
kms_hub_port_request_new_pad (GstElement * element,
GstPadTemplate * templ, const gchar * name, const GstCaps * caps)
{
GstElement *output = NULL;
if (templ ==
gst_element_class_get_pad_template (GST_ELEMENT_CLASS (G_OBJECT_GET_CLASS
(element)), HUB_AUDIO_SINK_PAD)) {
if (g_strcmp0 (name, HUB_AUDIO_SINK_PAD) != 0) {
GST_ERROR_OBJECT (element,
"Invalid pad name %s for template %" GST_PTR_FORMAT, name, templ);
return NULL;
}
output = kms_element_get_audio_agnosticbin (KMS_ELEMENT (element));
}
else if (templ ==
gst_element_class_get_pad_template (GST_ELEMENT_CLASS (G_OBJECT_GET_CLASS
(element)), HUB_VIDEO_SINK_PAD)) {
if (g_strcmp0 (name, HUB_VIDEO_SINK_PAD) != 0) {
GST_ERROR_OBJECT (element,
"Invalid pad name %s for template %" GST_PTR_FORMAT, name, templ);
return NULL;
}
output = kms_element_get_video_agnosticbin (KMS_ELEMENT (element));
}
else if (templ ==
gst_element_class_get_pad_template (GST_ELEMENT_CLASS (G_OBJECT_GET_CLASS
(element)), HUB_DATA_SINK_PAD)) {
if (g_strcmp0 (name, HUB_DATA_SINK_PAD) != 0) {
GST_ERROR_OBJECT (element,
"Invalid pad name %s for template %" GST_PTR_FORMAT, name, templ);
return NULL;
}
output = kms_element_get_data_tee (KMS_ELEMENT (element));
}
if (output == NULL) {
GST_WARNING_OBJECT (element, "No agnosticbin got for template %"
GST_PTR_FORMAT, templ);
return NULL;
} else {
return kms_hub_port_generate_sink_pad (element, templ, name, caps, output);
}
}
static void
kms_show_data_init (KmsShowData *self)
{
self->priv = KMS_SHOW_DATA_GET_PRIVATE (self);
self->priv->text_overlay = gst_element_factory_make ("textoverlay", NULL);
g_object_set (self->priv->text_overlay, "font-desc", "Sans 26", NULL);
gst_bin_add (GST_BIN (self), self->priv->text_overlay);
kms_show_data_connect_video (self, kms_element_get_video_agnosticbin (KMS_ELEMENT (self)));
kms_show_data_connect_audio (self, kms_element_get_audio_agnosticbin (KMS_ELEMENT (self)));
kms_show_data_connect_data (self, kms_element_get_data_tee (KMS_ELEMENT (self)));
gst_element_sync_state_with_parent (self->priv->text_overlay);
}
static void
kms_send_data_init (KmsSendData * self)
{
self->priv = KMS_SEND_DATA_GET_PRIVATE (self);
self->priv->zbar = gst_element_factory_make ("zbar", NULL);
gst_bin_add (GST_BIN (self), self->priv->zbar);
g_object_set (G_OBJECT (self->priv->zbar), "qos", FALSE, NULL);
kms_send_data_connect_video (self,
kms_element_get_video_agnosticbin (KMS_ELEMENT (self)));
kms_send_data_connect_audio (self,
kms_element_get_audio_agnosticbin (KMS_ELEMENT (self)));
kms_send_data_connect_data (self,
kms_element_get_data_tee (KMS_ELEMENT (self)));
gst_element_sync_state_with_parent (self->priv->zbar);
}
static void
kms_filter_element_set_filter (KmsFilterElement * self, GstElement * filter)
{
GstPad *sink = NULL, *src = NULL;
GstCaps *audio_caps = NULL, *video_caps = NULL;
GstCaps *sink_caps = NULL, *src_caps = NULL;
if (self->priv->filter != NULL) {
GST_WARNING_OBJECT (self, "Factory changes are not currently allowed");
g_object_unref (filter);
return;
}
if (filter == NULL) {
filter = gst_element_factory_make (self->priv->filter_factory, NULL);
} else {
GstElementFactory *factory = gst_element_get_factory (filter);
if (factory == NULL) {
GST_WARNING_OBJECT (self,
"Cannot get filter factory from given filter %" GST_PTR_FORMAT,
filter);
return;
}
self->priv->filter_factory = g_strdup (GST_OBJECT_NAME (factory));
}
if (filter == NULL) {
GST_ERROR_OBJECT (self, "Invalid factory \"%s\", element cannot be created",
self->priv->filter_factory);
return;
}
sink = gst_element_get_static_pad (filter, "sink");
src = gst_element_get_static_pad (filter, "src");
if (sink == NULL || src == NULL) {
GST_ERROR_OBJECT (self, "Invalid factory \"%s\", unexpected pad templates",
self->priv->filter_factory);
g_object_unref (filter);
goto end;
}
audio_caps = gst_caps_from_string (KMS_AGNOSTIC_AUDIO_CAPS);
video_caps = gst_caps_from_string (KMS_AGNOSTIC_VIDEO_CAPS);
sink_caps = gst_pad_query_caps (sink, NULL);
src_caps = gst_pad_query_caps (src, NULL);
KMS_FILTER_ELEMENT_LOCK (self);
if (self->priv->filter_type == KMS_FILTER_TYPE_AUTODETECT) {
if (gst_caps_can_intersect (audio_caps, sink_caps) &&
gst_caps_can_intersect (audio_caps, src_caps)) {
GST_DEBUG_OBJECT (self, "Connecting filter to audio");
self->priv->filter_type = KMS_FILTER_TYPE_AUDIO;
} else if (gst_caps_can_intersect (video_caps, sink_caps)
&& gst_caps_can_intersect (video_caps, src_caps)) {
GST_DEBUG_OBJECT (self, "Connecting filter to video");
self->priv->filter_type = KMS_FILTER_TYPE_VIDEO;
} else {
g_object_unref (filter);
GST_ERROR_OBJECT (self, "Filter element cannot be connected");
KMS_FILTER_ELEMENT_UNLOCK (self);
goto end;
}
}
if (self->priv->filter_type == KMS_FILTER_TYPE_VIDEO) {
kms_filter_element_connect_filter (self, KMS_ELEMENT_PAD_TYPE_VIDEO, filter,
sink, kms_element_get_video_agnosticbin (KMS_ELEMENT (self)));
kms_filter_element_connect_passthrough (self, KMS_ELEMENT_PAD_TYPE_AUDIO,
kms_element_get_audio_agnosticbin (KMS_ELEMENT (self)));
} else if (self->priv->filter_type == KMS_FILTER_TYPE_AUDIO) {
kms_filter_element_connect_filter (self, KMS_ELEMENT_PAD_TYPE_AUDIO, filter,
sink, kms_element_get_audio_agnosticbin (KMS_ELEMENT (self)));
kms_filter_element_connect_passthrough (self, KMS_ELEMENT_PAD_TYPE_VIDEO,
kms_element_get_video_agnosticbin (KMS_ELEMENT (self)));
} else {
GST_WARNING_OBJECT (self, "No filter configured, working in passthrogh");
kms_filter_element_connect_passthrough (self, KMS_ELEMENT_PAD_TYPE_VIDEO,
kms_element_get_video_agnosticbin (KMS_ELEMENT (self)));
kms_filter_element_connect_passthrough (self, KMS_ELEMENT_PAD_TYPE_AUDIO,
kms_element_get_audio_agnosticbin (KMS_ELEMENT (self)));
}
/* Enable data pads */
kms_filter_element_connect_passthrough (self, KMS_ELEMENT_PAD_TYPE_DATA,
kms_element_get_data_tee (KMS_ELEMENT (self)));
KMS_FILTER_ELEMENT_UNLOCK (self);
end:
if (sink_caps != NULL)
gst_caps_unref (sink_caps);
if (src_caps != NULL)
gst_caps_unref (src_caps);
if (audio_caps != NULL)
gst_caps_unref (audio_caps);
if (video_caps != NULL)
gst_caps_unref (video_caps);
if (sink != NULL)
g_object_unref (sink);
if (src != NULL)
g_object_unref (src);
}
static void
kms_dummy_src_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
KmsDummySrc *self = KMS_DUMMY_SRC (object);
KMS_ELEMENT_LOCK (KMS_ELEMENT (self));
switch (property_id) {
case PROP_DATA:
self->priv->data = g_value_get_boolean (value);
if (self->priv->data && self->priv->dataappsrc == NULL) {
GstElement *tee;
GstCaps *caps;
GST_DEBUG_OBJECT (self, "Creating data stream");
tee = kms_element_get_data_tee (KMS_ELEMENT (self));
caps = gst_caps_from_string (KMS_AGNOSTIC_DATA_CAPS);
self->priv->dataappsrc = gst_element_factory_make ("appsrc", NULL);
g_object_set (G_OBJECT (self->priv->dataappsrc), "is-live", TRUE,
"caps", caps, "emit-signals", TRUE, "stream-type", 0,
"format", GST_FORMAT_TIME, NULL);
gst_caps_unref (caps);
g_signal_connect (self->priv->dataappsrc, "need-data",
G_CALLBACK (kms_dummy_src_feed_data_channel), self);
gst_bin_add (GST_BIN (self), self->priv->dataappsrc);
gst_element_link_pads (self->priv->dataappsrc, "src", tee, "sink");
gst_element_sync_state_with_parent (self->priv->dataappsrc);
}
break;
case PROP_AUDIO:
self->priv->audio = g_value_get_boolean (value);
if (self->priv->audio && self->priv->audioappsrc == NULL) {
GstElement *agnosticbin;
GST_DEBUG_OBJECT (self, "Creating audio stream");
agnosticbin = kms_element_get_audio_agnosticbin (KMS_ELEMENT (self));
self->priv->audioappsrc =
gst_element_factory_make ("audiotestsrc", NULL);
g_object_set (G_OBJECT (self->priv->audioappsrc), "is-live", TRUE,
NULL);
gst_bin_add (GST_BIN (self), self->priv->audioappsrc);
gst_element_link_pads (self->priv->audioappsrc, "src", agnosticbin,
"sink");
gst_element_sync_state_with_parent (self->priv->audioappsrc);
}
break;
case PROP_VIDEO:
self->priv->video = g_value_get_boolean (value);
if (self->priv->video && self->priv->videoappsrc == NULL) {
GstElement *agnosticbin;
GST_DEBUG_OBJECT (self, "Creating video stream");
agnosticbin = kms_element_get_video_agnosticbin (KMS_ELEMENT (self));
self->priv->videoappsrc =
gst_element_factory_make ("videotestsrc", NULL);
g_object_set (G_OBJECT (self->priv->videoappsrc), "is-live", TRUE,
NULL);
gst_bin_add (GST_BIN (self), self->priv->videoappsrc);
gst_element_link_pads (self->priv->videoappsrc, "src", agnosticbin,
"sink");
gst_element_sync_state_with_parent (self->priv->videoappsrc);
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
KMS_ELEMENT_UNLOCK (KMS_ELEMENT (self));
}
