--- /dev/null
+/* GStreamer Color Balance
+ * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
+ *
+ * color-balance.h: image color balance interface design
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_COLOR_BALANCE_H__
+#define __GST_COLOR_BALANCE_H__
+
+#include <gst/gst.h>
+#include <gst/interfaces/colorbalancechannel.h>
+#include <gst/interfaces/interfaces-enumtypes.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_COLOR_BALANCE \
+ (gst_color_balance_get_type ())
+#define GST_COLOR_BALANCE(obj) \
+ (GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_COLOR_BALANCE, \
+ GstColorBalance))
+#define GST_COLOR_BALANCE_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_COLOR_BALANCE, \
+ GstColorBalanceClass))
+#define GST_IS_COLOR_BALANCE(obj) \
+ (GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_COLOR_BALANCE))
+#define GST_IS_COLOR_BALANCE_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_COLOR_BALANCE))
+#define GST_COLOR_BALANCE_GET_CLASS(inst) \
+ (G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_COLOR_BALANCE, GstColorBalanceClass))
+
+#define GST_COLOR_BALANCE_TYPE(klass) (klass->balance_type)
+
+typedef struct _GstColorBalance GstColorBalance;
+typedef struct _GstColorBalanceClass GstColorBalanceClass;
+
+/**
+ * GstColorBalanceType:
+ * @GST_COLOR_BALANCE_HARDWARE: Color balance is implemented with dedicated
+ * hardware.
+ * @GST_COLOR_BALANCE_SOFTWARE: Color balance is implemented via software
+ * processing.
+ *
+ * An enumeration indicating whether an element implements color balancing
+ * operations in software or in dedicated hardware. In general, dedicated
+ * hardware implementations (such as those provided by xvimagesink) are
+ * preferred.
+ */
+typedef enum
+{
+ GST_COLOR_BALANCE_HARDWARE,
+ GST_COLOR_BALANCE_SOFTWARE
+} GstColorBalanceType;
+
+struct _GstColorBalanceClass {
+ GTypeInterface klass;
+
+ GstColorBalanceType balance_type;
+
+ /* virtual functions */
+ const GList * (* list_channels) (GstColorBalance *balance);
+
+ void (* set_value) (GstColorBalance *balance,
+ GstColorBalanceChannel *channel,
+ gint value);
+ gint (* get_value) (GstColorBalance *balance,
+ GstColorBalanceChannel *channel);
+
+ /* signals */
+ void (* value_changed) (GstColorBalance *balance,
+ GstColorBalanceChannel *channel,
+ gint value);
+
+ gpointer _gst_reserved[GST_PADDING];
+};
+
+GType gst_color_balance_get_type (void);
+
+/* virtual class function wrappers */
+const GList *
+ gst_color_balance_list_channels (GstColorBalance *balance);
+void gst_color_balance_set_value (GstColorBalance *balance,
+ GstColorBalanceChannel *channel,
+ gint value);
+gint gst_color_balance_get_value (GstColorBalance *balance,
+ GstColorBalanceChannel *channel);
+
+GstColorBalanceType
+ gst_color_balance_get_balance_type (GstColorBalance *balance);
+
+/* trigger signal */
+void gst_color_balance_value_changed (GstColorBalance *balance,
+ GstColorBalanceChannel *channel,
+ gint value);
+
+G_END_DECLS
+
+#endif /* __GST_COLOR_BALANCE_H__ */