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gstglcolorbalance.h
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gstglcolorbalance.h
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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_GL_COLOR_BALANCE_H__
#define __GST_GL_COLOR_BALANCE_H__
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/gl/gl.h>
G_BEGIN_DECLS
#define GST_TYPE_GL_COLOR_BALANCE \
(gst_gl_color_balance_get_type())
#define GST_GL_COLOR_BALANCE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_COLOR_BALANCE,GstGLColorBalance))
#define GST_GL_COLOR_BALANCE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_COLOR_BALANCE,GstGLColorBalanceClass))
#define GST_IS_GL_COLOR_BALANCE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_COLOR_BALANCE))
#define GST_IS_GL_COLOR_BALANCE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_COLOR_BALANCE))
typedef struct _GstGLColorBalance GstGLColorBalance;
typedef struct _GstGLColorBalanceClass GstGLColorBalanceClass;
/**
* GstGLColorBalance:
*
* Opaque data structure.
*/
struct _GstGLColorBalance {
GstGLFilter videofilter;
GstGLShader *shader;
/* channels for interface */
GList *channels;
/* cached matrix for speeding up the operations within the shader */
gfloat yuva_balance_matrix[4*4];
gfloat yuva_balance_constant[4];
/* properties */
gdouble contrast;
gdouble brightness;
gdouble hue;
gdouble saturation;
};
struct _GstGLColorBalanceClass {
GstGLFilterClass parent_class;
};
GType gst_gl_color_balance_get_type(void);
G_END_DECLS
#endif /* __GST_GL_COLOR_BALANCE_H__ */