sys/v4l2/gstv4l2vidorient.h

   1 /* GStreamer
   2  *
   3  * Copyright (C) 2006 Edgard Lima <edgard.lima@indt.org.br>
   4  *
   5  * gstv4l2vidorient.h: video orientation interface implementation for V4L2
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Library General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Library General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Library General Public
  18  * License along with this library; if not, write to the
  19  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  20  * Boston, MA 02110-1301, USA.
  21  */
  22
  23 #ifndef __GST_V4L2_VIDORIENT_H__
  24 #define __GST_V4L2_VIDORIENT_H__
  25
  26 #include <gst/gst.h>
  27 #include <gst/video/videoorientation.h>
  28
  29 #include "gstv4l2object.h"
  30
  31 G_BEGIN_DECLS
  32
  33 void     gst_v4l2_video_orientation_interface_init (GstVideoOrientationInterface * iface);
  34
  35 gboolean gst_v4l2_video_orientation_get_hflip   (GstV4l2Object *v4l2object, gboolean *flip);
  36 gboolean gst_v4l2_video_orientation_get_vflip   (GstV4l2Object *v4l2object, gboolean *flip);
  37 gboolean gst_v4l2_video_orientation_get_hcenter (GstV4l2Object *v4l2object, gint *center);
  38 gboolean gst_v4l2_video_orientation_get_vcenter (GstV4l2Object *v4l2object, gint *center);
  39
  40 gboolean gst_v4l2_video_orientation_set_hflip   (GstV4l2Object *v4l2object, gboolean flip);
  41 gboolean gst_v4l2_video_orientation_set_vflip   (GstV4l2Object *v4l2object, gboolean flip);
  42 gboolean gst_v4l2_video_orientation_set_hcenter (GstV4l2Object *v4l2object, gint center);
  43 gboolean gst_v4l2_video_orientation_set_vcenter (GstV4l2Object *v4l2object, gint center);
  44
  45 #define GST_IMPLEMENT_V4L2_VIDORIENT_METHODS(Type, interface_as_function)                         \
  46                                                                                                   \
  47   static gboolean                                                                                 \
  48   interface_as_function ## _video_orientation_get_hflip (GstVideoOrientation *vo, gboolean *flip)       \
  49   {                                                                                               \
  50     Type *this = (Type*) vo;                                                                      \
  51     return gst_v4l2_video_orientation_get_hflip (this->v4l2object, flip);                         \
  52   }                                                                                               \
  53                                                                                                   \
  54   static gboolean                                                                                 \
  55   interface_as_function ## _video_orientation_get_vflip (GstVideoOrientation *vo, gboolean *flip)       \
  56   {                                                                                               \
  57     Type *this = (Type*) vo;                                                                      \
  58     return gst_v4l2_video_orientation_get_vflip (this->v4l2object, flip);                         \
  59   }                                                                                               \
  60                                                                                                   \
  61   static gboolean                                                                                 \
  62   interface_as_function ## _video_orientation_get_hcenter (GstVideoOrientation *vo, gint *center)       \
  63   {                                                                                               \
  64     Type *this = (Type*) vo;                                                                      \
  65     return gst_v4l2_video_orientation_get_hcenter (this->v4l2object, center);                     \
  66   }                                                                                               \
  67                                                                                                   \
  68   static gboolean                                                                                 \
  69   interface_as_function ## _video_orientation_get_vcenter (GstVideoOrientation *vo, gint *center)       \
  70   {                                                                                               \
  71     Type *this = (Type*) vo;                                                                      \
  72     return gst_v4l2_video_orientation_get_vcenter (this->v4l2object, center);                     \
  73   }                                                                                               \
  74                                                                                                   \
  75   static gboolean                                                                                 \
  76   interface_as_function ## _video_orientation_set_hflip (GstVideoOrientation *vo, gboolean flip)        \
  77   {                                                                                               \
  78     Type *this = (Type*) vo;                                                                      \
  79     return gst_v4l2_video_orientation_set_hflip (this->v4l2object, flip);                         \
  80   }                                                                                               \
  81                                                                                                   \
  82   static gboolean                                                                                 \
  83   interface_as_function ## _video_orientation_set_vflip (GstVideoOrientation *vo, gboolean flip)        \
  84   {                                                                                               \
  85     Type *this = (Type*) vo;                                                                      \
  86     return gst_v4l2_video_orientation_set_vflip (this->v4l2object, flip);                         \
  87   }                                                                                               \
  88                                                                                                   \
  89   static gboolean                                                                                 \
  90   interface_as_function ## _video_orientation_set_hcenter (GstVideoOrientation *vo, gint center)        \
  91   {                                                                                               \
  92     Type *this = (Type*) vo;                                                                      \
  93     return gst_v4l2_video_orientation_set_hcenter (this->v4l2object, center);                     \
  94   }                                                                                               \
  95                                                                                                   \
  96   static gboolean                                                                                 \
  97   interface_as_function ## _video_orientation_set_vcenter (GstVideoOrientation *vo, gint center)        \
  98   {                                                                                               \
  99     Type *this = (Type*) vo;                                                                      \
 100     return gst_v4l2_video_orientation_set_vcenter (this->v4l2object, center);                     \
 101   }                                                                                               \
 102                                                                                                   \
 103   static void                                                                                     \
 104   interface_as_function ## _video_orientation_interface_init (GstVideoOrientationInterface * iface)          \
 105   {                                                                                               \
 106     /* default virtual functions */                                                               \
 107     iface->get_hflip   = interface_as_function ## _video_orientation_get_hflip;                   \
 108     iface->get_vflip   = interface_as_function ## _video_orientation_get_vflip;                   \
 109     iface->get_hcenter = interface_as_function ## _video_orientation_get_hcenter;                 \
 110     iface->get_vcenter = interface_as_function ## _video_orientation_get_vcenter;                 \
 111     iface->set_hflip   = interface_as_function ## _video_orientation_set_hflip;                   \
 112     iface->set_vflip   = interface_as_function ## _video_orientation_set_vflip;                   \
 113     iface->set_hcenter = interface_as_function ## _video_orientation_set_hcenter;                 \
 114     iface->set_vcenter = interface_as_function ## _video_orientation_set_vcenter;                 \
 115   }
 116
 117 G_END_DECLS
 118 #endif /* __GST_V4L2_VIDORIENT_H__ */