sys/v4l2/gstv4l2colorbalance.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  * gstv4l2colorbalance.h: color balance 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., 51 Franklin St, Fifth Floor,
  21  * Boston, MA 02110-1301, USA.
  22  */
  23
  24 #ifndef __GST_V4L2_COLOR_BALANCE_H__
  25 #define __GST_V4L2_COLOR_BALANCE_H__
  26
  27 #include <gst/gst.h>
  28 #include <gst/video/colorbalance.h>
  29 #include "v4l2_calls.h"
  30
  31 G_BEGIN_DECLS
  32
  33 #define GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL \
  34   (gst_v4l2_color_balance_channel_get_type ())
  35 #define GST_V4L2_COLOR_BALANCE_CHANNEL(obj) \
  36   (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL, \
  37                                GstV4l2ColorBalanceChannel))
  38 #define GST_V4L2_COLOR_BALANCE_CHANNEL_CLASS(klass) \
  39   (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL, \
  40                             GstV4l2ColorBalanceChannelClass))
  41 #define GST_IS_V4L2_COLOR_BALANCE_CHANNEL(obj) \
  42   (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL))
  43 #define GST_IS_V4L2_COLOR_BALANCE_CHANNEL_CLASS(klass) \
  44   (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL))
  45
  46 typedef struct _GstV4l2ColorBalanceChannel {
  47   GstColorBalanceChannel parent;
  48
  49   guint32 id;
  50 } GstV4l2ColorBalanceChannel;
  51
  52 typedef struct _GstV4l2ColorBalanceChannelClass {
  53   GstColorBalanceChannelClass parent;
  54 } GstV4l2ColorBalanceChannelClass;
  55
  56 GType gst_v4l2_color_balance_channel_get_type   (void);
  57
  58 const GList *   gst_v4l2_color_balance_list_channels    (GstV4l2Object * v4l2object);
  59
  60 void            gst_v4l2_color_balance_set_value        (GstV4l2Object * v4l2object,
  61                                                          GstColorBalanceChannel * channel,
  62                                                          gint value);
  63
  64 gint            gst_v4l2_color_balance_get_value        (GstV4l2Object * v4l2object,
  65                                                          GstColorBalanceChannel * channel);
  66
  67 #define GST_IMPLEMENT_V4L2_COLOR_BALANCE_METHODS(Type, interface_as_function)         \
  68                                                                                       \
  69 static const GList *                                                                  \
  70 interface_as_function ## _color_balance_list_channels (GstColorBalance * balance)     \
  71 {                                                                                     \
  72   Type *this = (Type*) balance;                                                       \
  73   return gst_v4l2_color_balance_list_channels(this->v4l2object);                      \
  74 }                                                                                     \
  75                                                                                       \
  76 static void                                                                           \
  77 interface_as_function ## _color_balance_set_value (GstColorBalance * balance,         \
  78                                                    GstColorBalanceChannel * channel,  \
  79                                                    gint value)                        \
  80 {                                                                                     \
  81   Type *this = (Type*) balance;                                                       \
  82   gst_v4l2_color_balance_set_value(this->v4l2object, channel, value);          \
  83 }                                                                                     \
  84                                                                                       \
  85 static gint                                                                           \
  86 interface_as_function ## _color_balance_get_value (GstColorBalance * balance,         \
  87                                                    GstColorBalanceChannel * channel)  \
  88 {                                                                                     \
  89   Type *this = (Type*) balance;                                                       \
  90   return gst_v4l2_color_balance_get_value(this->v4l2object, channel);                 \
  91 }                                                                                     \
  92                                                                                       \
  93 static GstColorBalanceType                                                            \
  94 interface_as_function ## _color_balance_get_balance_type (GstColorBalance * balance)  \
  95 {                                                                                     \
  96   return GST_COLOR_BALANCE_HARDWARE;                                                  \
  97 }                                                                                     \
  98                                                                                       \
  99 static void                                                                           \
 100 interface_as_function ## _color_balance_interface_init (GstColorBalanceInterface * iface) \
 101 {                                                                                     \
 102   /* default virtual functions */                                                     \
 103   iface->list_channels = interface_as_function ## _color_balance_list_channels;       \
 104   iface->set_value = interface_as_function ## _color_balance_set_value;               \
 105   iface->get_value = interface_as_function ## _color_balance_get_value;               \
 106   iface->get_balance_type = interface_as_function ## _color_balance_get_balance_type; \
 107 }                                                                                     \
 108
 109 G_END_DECLS
 110 #endif /* __GST_V4L2_COLOR_BALANCE_H__ */