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