static gint
kms_composite_mixer_handle_port (KmsBaseHub * mixer,
GstElement * mixer_end_point)
{
KmsCompositeMixer *self = KMS_COMPOSITE_MIXER (mixer);
KmsCompositeMixerData *port_data;
gint port_id;
port_id = KMS_BASE_HUB_CLASS (G_OBJECT_CLASS
(kms_composite_mixer_parent_class))->handle_port (mixer, mixer_end_point);
if (port_id < 0) {
return port_id;
}
KMS_COMPOSITE_MIXER_LOCK (self);
if (self->priv->videomixer == NULL) {
GstElement *videorate_mixer;
videorate_mixer = gst_element_factory_make ("videorate", NULL);
self->priv->videomixer = gst_element_factory_make ("compositor", NULL);
g_object_set (G_OBJECT (self->priv->videomixer), "background", 1, NULL);
self->priv->mixer_video_agnostic =
gst_element_factory_make ("agnosticbin", NULL);
gst_bin_add_many (GST_BIN (mixer), self->priv->videomixer, videorate_mixer,
self->priv->mixer_video_agnostic, NULL);
gst_element_sync_state_with_parent (self->priv->videomixer);
gst_element_sync_state_with_parent (videorate_mixer);
gst_element_sync_state_with_parent (self->priv->mixer_video_agnostic);
gst_element_link_many (self->priv->videomixer, videorate_mixer,
self->priv->mixer_video_agnostic, NULL);
}
if (self->priv->audiomixer == NULL) {
self->priv->audiomixer = gst_element_factory_make ("kmsaudiomixer", NULL);
gst_bin_add (GST_BIN (mixer), self->priv->audiomixer);
gst_element_sync_state_with_parent (self->priv->audiomixer);
g_signal_connect (self->priv->audiomixer, "pad-added",
G_CALLBACK (pad_added_cb), self);
g_signal_connect (self->priv->audiomixer, "pad-removed",
G_CALLBACK (pad_removed_cb), self);
}
kms_base_hub_link_video_src (KMS_BASE_HUB (self), port_id,
self->priv->mixer_video_agnostic, "src_%u", TRUE);
port_data = kms_composite_mixer_port_data_create (self, port_id);
g_hash_table_insert (self->priv->ports, create_gint (port_id), port_data);
KMS_COMPOSITE_MIXER_UNLOCK (self);
return port_id;
}
static gint
kms_dispatcher_handle_port (KmsBaseHub * hub, GstElement * mixer_port)
{
KmsDispatcher *self = KMS_DISPATCHER (hub);
KmsDispatcherPortData *port_data;
gint port_id;
port_id = KMS_BASE_HUB_CLASS (kms_dispatcher_parent_class)->handle_port (hub,
mixer_port);
if (port_id < 0)
return -1;
port_data = kms_dispatcher_port_data_create (self, port_id);
KMS_DISPATCHER_LOCK (self);
g_hash_table_insert (self->priv->ports, create_gint (port_id), port_data);
KMS_DISPATCHER_UNLOCK (self);
return port_id;
}
static gint
kms_composite_mixer_handle_port (KmsBaseHub * mixer,
GstElement * mixer_end_point)
{
KmsCompositeMixer *self = KMS_COMPOSITE_MIXER (mixer);
KmsCompositeMixerData *port_data;
gint port_id;
GST_DEBUG ("handle new port");
port_id = KMS_BASE_HUB_CLASS (G_OBJECT_CLASS
(kms_composite_mixer_parent_class))->handle_port (mixer, mixer_end_point);
if (port_id < 0) {
return port_id;
}
KMS_COMPOSITE_MIXER_LOCK (self);
if (self->priv->videomixer == NULL) {
self->priv->videomixer = gst_element_factory_make ("compositor", NULL);
g_object_set (G_OBJECT (self->priv->videomixer), "background",
1 /*black */ , "start-time-selection", 1 /*first */ ,
"latency", LATENCY * GST_MSECOND, NULL);
self->priv->mixer_video_agnostic =
gst_element_factory_make ("agnosticbin", NULL);
gst_bin_add_many (GST_BIN (mixer), self->priv->videomixer,
self->priv->mixer_video_agnostic, NULL);
if (self->priv->videotestsrc == NULL) {
GstElement *capsfilter;
GstCaps *filtercaps;
GstPad *pad;
GstPadTemplate *sink_pad_template;
sink_pad_template =
gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS
(self->priv->videomixer), "sink_%u");
if (G_UNLIKELY (sink_pad_template == NULL)) {
GST_ERROR_OBJECT (self, "Error taking a new pad from videomixer");
}
self->priv->videotestsrc =
gst_element_factory_make ("videotestsrc", NULL);
capsfilter = gst_element_factory_make ("capsfilter", NULL);
g_object_set (G_OBJECT (capsfilter), "caps-change-mode", 1, NULL);
g_object_set (self->priv->videotestsrc, "is-live", TRUE, "pattern",
/*black */ 2, NULL);
filtercaps =
gst_caps_new_simple ("video/x-raw",
"width", G_TYPE_INT, self->priv->output_width,
"height", G_TYPE_INT, self->priv->output_height,
"framerate", GST_TYPE_FRACTION, 15, 1, NULL);
g_object_set (G_OBJECT (capsfilter), "caps", filtercaps, NULL);
gst_caps_unref (filtercaps);
gst_bin_add_many (GST_BIN (self), self->priv->videotestsrc,
capsfilter, NULL);
gst_element_link (self->priv->videotestsrc, capsfilter);
/*link capsfilter -> videomixer */
pad = gst_element_request_pad (self->priv->videomixer, sink_pad_template,
NULL, NULL);
gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_QUERY_UPSTREAM,
(GstPadProbeCallback) cb_latency, NULL, NULL);
gst_element_link_pads (capsfilter, NULL,
self->priv->videomixer, GST_OBJECT_NAME (pad));
g_object_set (pad, "xpos", 0, "ypos", 0, "alpha", 0.0, NULL);
g_object_unref (pad);
gst_element_sync_state_with_parent (capsfilter);
gst_element_sync_state_with_parent (self->priv->videotestsrc);
}
gst_element_sync_state_with_parent (self->priv->videomixer);
gst_element_sync_state_with_parent (self->priv->mixer_video_agnostic);
gst_element_link (self->priv->videomixer, self->priv->mixer_video_agnostic);
}
if (self->priv->audiomixer == NULL) {
self->priv->audiomixer = gst_element_factory_make ("kmsaudiomixer", NULL);
gst_bin_add (GST_BIN (mixer), self->priv->audiomixer);
gst_element_sync_state_with_parent (self->priv->audiomixer);
g_signal_connect (self->priv->audiomixer, "pad-added",
G_CALLBACK (pad_added_cb), self);
g_signal_connect (self->priv->audiomixer, "pad-removed",
G_CALLBACK (pad_removed_cb), self);
}
kms_base_hub_link_video_src (KMS_BASE_HUB (self), port_id,
self->priv->mixer_video_agnostic, "src_%u", TRUE);
port_data = kms_composite_mixer_port_data_create (self, port_id);
g_hash_table_insert (self->priv->ports, create_gint (port_id), port_data);
KMS_COMPOSITE_MIXER_UNLOCK (self);
return port_id;
}