gstreamer/subprojects/gst-plugins-base/gst-libs/gst/video/videodirection.c

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/* GStreamer
* Copyright (C) 2016 Igalia <calvaris@igalia.com>
*
* videodirection.c: video rotation and flipping interface
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "video.h"
#define PROP_DIRECTION_DEFAULT GST_VIDEO_ORIENTATION_IDENTITY
/**
* SECTION:gstvideodirection
* @title: GstVideoDirection
* @short_description: Interface for elements providing video
* rotation and flipping controls
*
* The interface allows unified access to control flipping and rotation
* operations of video-sources or operators.
*
* Since: 1.10
*/
G_DEFINE_INTERFACE (GstVideoDirection, gst_video_direction, 0);
static void
gst_video_direction_default_init (GstVideoDirectionInterface * iface)
{
g_object_interface_install_property (iface,
g_param_spec_enum ("video-direction", "Video direction",
"Video direction: rotation and flipping",
GST_TYPE_VIDEO_ORIENTATION_METHOD, PROP_DIRECTION_DEFAULT,
GST_PARAM_CONTROLLABLE | G_PARAM_READWRITE | G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
}