/**
* @brief
* @param ui The GstSwitchUI instance.
* @param port The compose port number.
* @memberof GstSwitchUI
*/
static void
gst_switch_ui_set_compose_port (GstSwitchUI * ui, gint port)
{
GstElement *overlay = NULL;
GST_SWITCH_UI_LOCK_COMPOSE (ui);
if (ui->compose) {
gst_worker_stop (GST_WORKER (ui->compose));
g_object_unref (ui->compose);
}
ui->compose = gst_switch_ui_new_video_disp (ui, ui->compose_view, port);
overlay = gst_worker_get_element (GST_WORKER (ui->compose), "overlay");
if (overlay) {
g_signal_connect (overlay, "draw",
G_CALLBACK (gst_switch_ui_compose_draw), ui);
}
GST_SWITCH_UI_UNLOCK_COMPOSE (ui);
}
/**
* gst_composite_adjust_pip:
* @param composite The GstComposite instance
* @param x the X position of the PIP
* @param y the Y position of the PIP
* @param w the width of the PIP
* @param h the height of the PIP
* @return PIP has been changed succefully
*
* Change the PIP position and size.
*/
gboolean
gst_composite_adjust_pip (GstComposite * composite, gint x, gint y,
gint w, gint h)
{
gboolean result = FALSE;
GstIterator *iter = NULL;
GValue value = { 0 };
GstElement *element = NULL;
gboolean done = FALSE;
g_return_val_if_fail (GST_IS_COMPOSITE (composite), FALSE);
GST_COMPOSITE_LOCK (composite);
if (composite->adjusting) {
WARN ("last PIP adjustment request is progressing");
goto end;
}
composite->b_x = x;
composite->b_y = y;
if (composite->b_width != w || composite->b_height != h) {
composite->b_width = w;
composite->b_height = h;
composite->adjusting = TRUE;
gst_worker_stop (GST_WORKER (composite));
result = TRUE;
goto end;
}
element = gst_worker_get_element (GST_WORKER (composite), "mix");
iter = gst_element_iterate_sink_pads (element);
while (iter && !done) {
switch (gst_iterator_next (iter, &value)) {
case GST_ITERATOR_OK:
{
GstPad *pad = g_value_get_object (&value);
if (g_strcmp0 (gst_pad_get_name (pad), "sink_1") == 0) {
g_object_set (pad, "xpos", composite->b_x,
"ypos", composite->b_y, NULL);
done = TRUE;
result = TRUE;
}
g_value_reset (&value);
}
break;
case GST_ITERATOR_RESYNC:
gst_iterator_resync (iter);
break;
case GST_ITERATOR_DONE:
done = TRUE;
break;
default:
/* iterator returned _ERROR or premature end with _OK,
* mark an error and exit */
done = TRUE;
result = FALSE;
break;
}
}
if (G_IS_VALUE (&value))
g_value_unset (&value);
if (iter)
gst_iterator_free (iter);
composite->adjusting = FALSE;
/*
if (!result) {
WARN ("failed to adjust PIP: %d, %d, %d, %d", x, y, w, h);
}
*/
end:
GST_COMPOSITE_UNLOCK (composite);
return result;
}