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/* GStreamer
* Copyright (C) <2017> Philippe Renon <philippe_renon@yahoo.fr>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "cameraevent.hpp"
#include <opencv2/opencv.hpp>
/**
* gst_camera_event_new_calibrated:
* @settings: .
*
* Creates a new calibrated event.
*
* To parse an event created by gst_camera_event_new_calibrated() use
* gst_camera_event_parse_calibrated().
*
* Returns: The new GstEvent
*/
GstEvent *
gst_camera_event_new_calibrated (gchar * settings)
{
GstEvent *calibrated_event;
GstStructure *s;
s = gst_structure_new (GST_CAMERA_EVENT_CALIBRATED_NAME,
"undistort-settings", G_TYPE_STRING, g_strdup (settings), NULL);
calibrated_event = gst_event_new_custom (GST_EVENT_CUSTOM_BOTH, s);
return calibrated_event;
}
/**
* gst_camera_event_parse_calibrated:
* @event: A #GstEvent to parse
* @in_still: A boolean to receive the still-frame status from the event, or NULL
*
* Parse a #GstEvent, identify if it is a calibrated event, and
* return the s.
*
* Create a calibrated event using gst_camera_event_new_calibrated()
*
* Returns: %TRUE if the event is a valid calibrated event. %FALSE if not
*/
gboolean
gst_camera_event_parse_calibrated (GstEvent * event, gchar ** settings)
{
const GstStructure *s;
g_return_val_if_fail (event != NULL, FALSE);
if (GST_EVENT_TYPE (event) != GST_EVENT_CUSTOM_BOTH)
return FALSE; /* Not a calibrated event */
s = gst_event_get_structure (event);
if (s == NULL
|| !gst_structure_has_name (s, GST_CAMERA_EVENT_CALIBRATED_NAME))
return FALSE; /* Not a calibrated event */
const gchar *str = gst_structure_get_string (s, "undistort-settings");
if (!str)
return FALSE; /* Not calibrated frame event */
*settings = g_strdup (str);
return TRUE;
}
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