1 /* GStreamer 2 * 3 * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> 4 * 2006 Edgard Lima <edgard.lima@gmail.com> 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 30 #include "gstv4l2object.h" 31 32 G_BEGIN_DECLS 33 34 #define GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL \ 35 (gst_v4l2_color_balance_channel_get_type ()) 36 #define GST_V4L2_COLOR_BALANCE_CHANNEL(obj) \ 37 (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL, \ 38 GstV4l2ColorBalanceChannel)) 39 #define GST_V4L2_COLOR_BALANCE_CHANNEL_CLASS(klass) \ 40 (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL, \ 41 GstV4l2ColorBalanceChannelClass)) 42 #define GST_IS_V4L2_COLOR_BALANCE_CHANNEL(obj) \ 43 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL)) 44 #define GST_IS_V4L2_COLOR_BALANCE_CHANNEL_CLASS(klass) \ 45 (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL)) 46 47 typedef struct _GstV4l2ColorBalanceChannel { 48 GstColorBalanceChannel parent; 49 50 guint32 id; 51 } GstV4l2ColorBalanceChannel; 52 53 typedef struct _GstV4l2ColorBalanceChannelClass { 54 GstColorBalanceChannelClass parent; 55 } GstV4l2ColorBalanceChannelClass; 56 57 GType gst_v4l2_color_balance_channel_get_type (void); 58 59 const GList * gst_v4l2_color_balance_list_channels (GstV4l2Object * v4l2object); 60 61 void gst_v4l2_color_balance_set_value (GstV4l2Object * v4l2object, 62 GstColorBalanceChannel * channel, 63 gint value); 64 65 gint gst_v4l2_color_balance_get_value (GstV4l2Object * v4l2object, 66 GstColorBalanceChannel * channel); 67 68 #define GST_IMPLEMENT_V4L2_COLOR_BALANCE_METHODS(Type, interface_as_function) \ 69 \ 70 static const GList * \ 71 interface_as_function ## _color_balance_list_channels (GstColorBalance * balance) \ 72 { \ 73 Type *this = (Type*) balance; \ 74 return gst_v4l2_color_balance_list_channels(this->v4l2object); \ 75 } \ 76 \ 77 static void \ 78 interface_as_function ## _color_balance_set_value (GstColorBalance * balance, \ 79 GstColorBalanceChannel * channel, \ 80 gint value) \ 81 { \ 82 Type *this = (Type*) balance; \ 83 gst_v4l2_color_balance_set_value(this->v4l2object, channel, value); \ 84 } \ 85 \ 86 static gint \ 87 interface_as_function ## _color_balance_get_value (GstColorBalance * balance, \ 88 GstColorBalanceChannel * channel) \ 89 { \ 90 Type *this = (Type*) balance; \ 91 return gst_v4l2_color_balance_get_value(this->v4l2object, channel); \ 92 } \ 93 \ 94 static GstColorBalanceType \ 95 interface_as_function ## _color_balance_get_balance_type (GstColorBalance * balance) \ 96 { \ 97 return GST_COLOR_BALANCE_HARDWARE; \ 98 } \ 99 \ 100 static void \ 101 interface_as_function ## _color_balance_interface_init (GstColorBalanceInterface * iface) \ 102 { \ 103 /* default virtual functions */ \ 104 iface->list_channels = interface_as_function ## _color_balance_list_channels; \ 105 iface->set_value = interface_as_function ## _color_balance_set_value; \ 106 iface->get_value = interface_as_function ## _color_balance_get_value; \ 107 iface->get_balance_type = interface_as_function ## _color_balance_get_balance_type; \ 108 } \ 109 110 G_END_DECLS 111 #endif /* __GST_V4L2_COLOR_BALANCE_H__ */ 112