static void
fps_display_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstFPSDisplaySink *self = GST_FPS_DISPLAY_SINK (object);
switch (prop_id) {
case PROP_SYNC:
self->sync = g_value_get_boolean (value);
fps_display_sink_update_sink_sync (self);
break;
case PROP_TEXT_OVERLAY:
self->use_text_overlay = g_value_get_boolean (value);
if (self->text_overlay) {
if (!self->use_text_overlay) {
GST_DEBUG_OBJECT (self, "text-overlay set to false");
g_object_set (self->text_overlay, "text", "", "silent", TRUE, NULL);
} else {
GST_DEBUG_OBJECT (self, "text-overlay set to true");
g_object_set (self->text_overlay, "silent", FALSE, NULL);
}
}
break;
case PROP_VIDEO_SINK:
/* FIXME should we add a state-lock or a lock around here?
* need to check if it is possible that a state change NULL->READY can
* happen while this code is executing on a different thread */
if (GST_STATE (self) != GST_STATE_NULL) {
g_warning ("Can't set video-sink property of fpsdisplaysink if not on "
"NULL state");
break;
}
update_video_sink (self, (GstElement *) g_value_get_object (value));
break;
case PROP_FPS_UPDATE_INTERVAL:
self->fps_update_interval =
GST_MSECOND * (GstClockTime) g_value_get_int (value);
break;
case PROP_SIGNAL_FPS_MEASUREMENTS:
self->signal_measurements = g_value_get_boolean (value);
break;
case PROP_SILENT:
self->silent = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GstStateChangeReturn
fps_display_sink_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstFPSDisplaySink *self = GST_FPS_DISPLAY_SINK (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
if (self->video_sink == NULL) {
GstElement *video_sink;
GST_DEBUG_OBJECT (self, "No video sink set, creating autovideosink");
video_sink = gst_element_factory_make ("autovideosink",
"fps-display-video_sink");
update_video_sink (self, video_sink);
}
if (self->video_sink != NULL) {
fps_display_sink_start (self);
} else {
GST_ELEMENT_ERROR (self, LIBRARY, INIT,
("No video sink set and autovideosink is not available"), (NULL));
ret = GST_STATE_CHANGE_FAILURE;
}
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
/* reinforce our sync to children, as they might have changed
* internally */
fps_display_sink_update_sink_sync (self);
break;
default:
break;
}
ret = GST_CALL_PARENT_WITH_DEFAULT (GST_ELEMENT_CLASS, change_state,
(element, transition), GST_STATE_CHANGE_SUCCESS);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
fps_display_sink_stop (self);
break;
default:
break;
}
return ret;
}
static void
update_video_sink (GstFPSDisplaySink * self, GstElement * video_sink)
{
GstPad *sink_pad;
if (self->video_sink) {
/* remove pad probe */
sink_pad = gst_element_get_static_pad (self->video_sink, "sink");
gst_pad_remove_probe (sink_pad, self->data_probe_id);
gst_object_unref (sink_pad);
self->data_probe_id = -1;
/* remove ghost pad target */
gst_ghost_pad_set_target (GST_GHOST_PAD (self->ghost_pad), NULL);
/* remove old sink */
gst_bin_remove (GST_BIN (self), self->video_sink);
gst_object_unref (self->video_sink);
}
/* create child elements */
self->video_sink = video_sink;
if (self->video_sink == NULL)
return;
fps_display_sink_update_sink_sync (self);
/* take a ref before bin takes the ownership */
gst_object_ref (self->video_sink);
gst_bin_add (GST_BIN (self), self->video_sink);
/* attach or pad probe */
sink_pad = gst_element_get_static_pad (self->video_sink, "sink");
self->data_probe_id = gst_pad_add_probe (sink_pad,
GST_PAD_PROBE_TYPE_DATA_BOTH, on_video_sink_data_flow,
(gpointer) self, NULL);
gst_object_unref (sink_pad);
}
