gstreamer/sys/v4l2/gstv4l2videooverlay.h

/* GStreamer
 * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
 *               2006 Edgard Lima <edgard.lima@indt.org.br>
 *
 * gstv4l2videooverlay.h: tv mixer interface implementation for V4L2
 *
 * 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., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#ifndef __GST_V4L2_VIDEO_OVERLAY_H__
#define __GST_V4L2_VIDEO_OVERLAY_H__

#include <X11/X.h>

#include <gst/gst.h>
#include <gst/interfaces/videooverlay.h>
#include <gst/interfaces/navigation.h>
#include <gst/video/gstvideosink.h>  /* for GstVideoRectange */

#include "gstv4l2object.h"

G_BEGIN_DECLS

void gst_v4l2_video_overlay_start (GstV4l2Object  *v4l2object);
void gst_v4l2_video_overlay_stop  (GstV4l2Object  *v4l2object);
gboolean gst_v4l2_video_overlay_get_render_rect (GstV4l2Object *v4l2object,
    GstVideoRectangle *rect);

void gst_v4l2_video_overlay_interface_init (GstVideoOverlayInterface * iface);
void gst_v4l2_video_overlay_set_window_handle (GstV4l2Object * v4l2object,
    guintptr id);
void gst_v4l2_video_overlay_prepare_window_handle (GstV4l2Object * v4l2object,
    gboolean required);


#define GST_IMPLEMENT_V4L2_VIDEO_OVERLAY_METHODS(Type, interface_as_function) \
                                                                              \
static void                                                                   \
interface_as_function ## _video_overlay_set_window_handle (GstVideoOverlay * overlay, \
                                                           guintptr id)       \
{                                                                             \
  Type *this = (Type*) overlay;                                              \
  gst_v4l2_video_overlay_set_window_handle (this->v4l2object, id);                 \
}                                                                             \
                                                                              \
static void                                                                   \
interface_as_function ## _video_overlay_interface_init (GstVideoOverlayInterface * iface)  \
{                                                                             \
  /* default virtual functions */                                             \
  iface->set_window_handle = interface_as_function ## _video_overlay_set_window_handle;  \
                                                                              \
  gst_v4l2_video_overlay_interface_init (iface);                              \
}                                                                             \


#endif /* __GST_V4L2_VIDEO_OVERLAY_H__ */