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105 lines
5.6 KiB
C
105 lines
5.6 KiB
C
/* G-Streamer generic V4L2 element - Color Balance interface implementation
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* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
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* Copyright (C) 2006 Edgard Lima <edgard.lima@indt.org.br>
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*
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* gstv4l2colorbalance.h: color balance interface implementation for V4L2
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_V4L2_COLOR_BALANCE_H__
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#define __GST_V4L2_COLOR_BALANCE_H__
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#include <gst/gst.h>
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#include <gst/interfaces/colorbalance.h>
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#include "v4l2_calls.h"
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G_BEGIN_DECLS
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#define GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL \
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(gst_v4l2_color_balance_channel_get_type ())
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#define GST_V4L2_COLOR_BALANCE_CHANNEL(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL, \
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GstV4l2ColorBalanceChannel))
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#define GST_V4L2_COLOR_BALANCE_CHANNEL_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL, \
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GstV4l2ColorBalanceChannelClass))
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#define GST_IS_V4L2_COLOR_BALANCE_CHANNEL(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL))
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#define GST_IS_V4L2_COLOR_BALANCE_CHANNEL_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL))
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typedef struct _GstV4l2ColorBalanceChannel {
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GstColorBalanceChannel parent;
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guint32 id;
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} GstV4l2ColorBalanceChannel;
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typedef struct _GstV4l2ColorBalanceChannelClass {
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GstColorBalanceChannelClass parent;
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} GstV4l2ColorBalanceChannelClass;
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GType gst_v4l2_color_balance_channel_get_type (void);
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extern const GList *
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gst_v4l2_color_balance_list_channels (GstV4l2Object * v4l2object);
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extern void
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gst_v4l2_color_balance_set_value (GstV4l2Object * v4l2object,
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GstColorBalanceChannel * channel, gint value);
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extern gint
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gst_v4l2_color_balance_get_value (GstV4l2Object * v4l2object,
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GstColorBalanceChannel * channel);
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#define GST_IMPLEMENT_V4L2_COLOR_BALANCE_METHODS(Type, interface_as_function) \
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\
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static const GList * \
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interface_as_function ## _color_balance_list_channels (GstColorBalance * balance) \
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{ \
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Type *this = (Type*) balance; \
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return gst_v4l2_color_balance_list_channels(this->v4l2object); \
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} \
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\
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static void \
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interface_as_function ## _color_balance_set_value (GstColorBalance * balance, \
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GstColorBalanceChannel * channel, \
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gint value) \
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{ \
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Type *this = (Type*) balance; \
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return gst_v4l2_color_balance_set_value(this->v4l2object, channel, value); \
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} \
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\
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static gint \
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interface_as_function ## _color_balance_get_value (GstColorBalance * balance, \
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GstColorBalanceChannel * channel) \
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{ \
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Type *this = (Type*) balance; \
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return gst_v4l2_color_balance_get_value(this->v4l2object, channel); \
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} \
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\
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void \
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interface_as_function ## _color_balance_interface_init (GstColorBalanceClass * klass) \
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{ \
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GST_COLOR_BALANCE_TYPE (klass) = GST_COLOR_BALANCE_HARDWARE; \
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\
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/* default virtual functions */ \
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klass->list_channels = interface_as_function ## _color_balance_list_channels; \
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klass->set_value = interface_as_function ## _color_balance_set_value; \
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klass->get_value = interface_as_function ## _color_balance_get_value; \
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} \
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#endif /* __GST_V4L2_COLOR_BALANCE_H__ */
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