sys/v4l2/gstv4l2xoverlay.h

   1 /* GStreamer
   2  *
   3  * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
   4  *               2006 Edgard Lima <edgard.lima@indt.org.br>
   5  *
   6  * gstv4l2xoverlay.h: tv mixer interface implementation for V4L2
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Library General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Library General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Library General Public
  19  * License along with this library; if not, write to the
  20  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  21  * Boston, MA 02111-1307, USA.
  22  */
  23
  24 #ifndef __GST_V4L2_X_OVERLAY_H__
  25 #define __GST_V4L2_X_OVERLAY_H__
  26
  27 #include <X11/X.h>
  28
  29 #include <gst/gst.h>
  30 #include <gst/interfaces/xoverlay.h>
  31
  32 #include "gstv4l2object.h"
  33
  34 G_BEGIN_DECLS
  35
  36 void gst_v4l2_xoverlay_start (GstV4l2Object  *v4l2object);
  37 void gst_v4l2_xoverlay_stop  (GstV4l2Object  *v4l2object);
  38
  39 void gst_v4l2_xoverlay_interface_init (GstXOverlayClass * klass);
  40 void gst_v4l2_xoverlay_set_window_handle (GstV4l2Object * v4l2object,
  41     guintptr id);
  42
  43
  44 #define GST_IMPLEMENT_V4L2_XOVERLAY_METHODS(Type, interface_as_function)      \
  45                                                                               \
  46 static void                                                                   \
  47 interface_as_function ## _xoverlay_set_window_handle (GstXOverlay * xoverlay, \
  48                                                    guintptr id)               \
  49 {                                                                             \
  50   Type *this = (Type*) xoverlay;                                              \
  51   gst_v4l2_xoverlay_set_window_handle (this->v4l2object, id);                 \
  52 }                                                                             \
  53                                                                               \
  54 static void                                                                   \
  55 interface_as_function ## _xoverlay_interface_init (GstXOverlayClass * klass)  \
  56 {                                                                             \
  57   /* default virtual functions */                                             \
  58   klass->set_window_handle = interface_as_function ## _xoverlay_set_window_handle;  \
  59                                                                               \
  60   gst_v4l2_xoverlay_interface_init(klass);                                    \
  61 }                                                                             \
  62
  63
  64 #endif /* __GST_V4L2_X_OVERLAY_H__ */