static gint
kms_alpha_blending_handle_port (KmsBaseHub * mixer,
GstElement * mixer_end_point)
{
KmsAlphaBlending *self = KMS_ALPHA_BLENDING (mixer);
KmsAlphaBlendingData *port_data;
gint port_id;
port_id = KMS_BASE_HUB_CLASS (G_OBJECT_CLASS
(kms_alpha_blending_parent_class))->handle_port (mixer, mixer_end_point);
if (port_id < 0) {
return port_id;
}
KMS_ALPHA_BLENDING_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_alpha_blending_port_data_create (self, port_id);
g_hash_table_insert (self->priv->ports, GINT_TO_POINTER (port_id), port_data);
KMS_ALPHA_BLENDING_UNLOCK (self);
return port_id;
}
static gboolean
kms_selectable_mixer_connect_video (KmsSelectableMixer * self, guint source,
guint sink)
{
KmsSelectableMixerPortData *source_port, *sink_port;
gboolean connected = FALSE;
KMS_SELECTABLE_MIXER_LOCK (self);
source_port = g_hash_table_lookup (self->priv->ports, &source);
if (source_port == NULL) {
GST_ERROR_OBJECT (self, "No source port %u found", source);
goto end;
}
sink_port = g_hash_table_lookup (self->priv->ports, &sink);
if (sink_port == NULL) {
GST_ERROR_OBJECT (self, "No sink port %u found", source);
goto end;
}
if (!(connected =
kms_base_hub_link_video_src (KMS_BASE_HUB (self), sink_port->id,
source_port->video_agnostic, "src_%u", TRUE))) {
GST_ERROR_OBJECT (self, "Can not connect video port");
}
end:
KMS_SELECTABLE_MIXER_UNLOCK (self);
return connected;
}
static gboolean
kms_dispatcher_connect (KmsDispatcher * self, guint source, guint sink)
{
KmsDispatcherPortData *source_port, *sink_port;
gboolean connected = FALSE;
KMS_DISPATCHER_LOCK (self);
source_port = g_hash_table_lookup (self->priv->ports, &source);
if (source_port == NULL) {
GST_ERROR_OBJECT (self, "No source port %u found", source);
goto end;
}
sink_port = g_hash_table_lookup (self->priv->ports, &sink);
if (sink_port == NULL) {
GST_ERROR_OBJECT (self, "No sink port %u found", source);
goto end;
}
if (!kms_base_hub_link_audio_src (KMS_BASE_HUB (self), sink_port->id,
source_port->audio_agnostic, "src_%u", TRUE)) {
GST_ERROR_OBJECT (self, "Can not connect audio port");
goto end;
}
if (!kms_base_hub_link_video_src (KMS_BASE_HUB (self), sink_port->id,
source_port->video_agnostic, "src_%u", TRUE)) {
GST_ERROR_OBJECT (self, "Can not connect video port");
kms_base_hub_unlink_audio_src (KMS_BASE_HUB (self), sink_port->id);
goto end;
}
connected = TRUE;
end:
KMS_DISPATCHER_UNLOCK (self);
return connected;
}
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;
}
