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99 lines
3 KiB
C
99 lines
3 KiB
C
/* Colorspace conversion functions
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* Copyright (C) 2010 David Schleef <ds@schleef.org>
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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 __COLORSPACE_H__
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#define __COLORSPACE_H__
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#include <gst/video/video.h>
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G_BEGIN_DECLS
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typedef struct _ColorspaceConvert ColorspaceConvert;
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typedef struct _ColorspaceFrame ColorspaceComponent;
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typedef enum {
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COLOR_SPEC_NONE = 0,
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COLOR_SPEC_RGB,
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COLOR_SPEC_GRAY,
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COLOR_SPEC_YUV_BT470_6,
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COLOR_SPEC_YUV_BT709,
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COLOR_SPEC_YUV_JPEG
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} ColorSpaceColorSpec;
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typedef enum {
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DITHER_NONE,
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DITHER_VERTERR,
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DITHER_HALFTONE
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} ColorSpaceDitherMethod;
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struct _ColorspaceComponent {
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int offset;
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int stride;
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};
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struct _ColorspaceConvert {
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gint width, height;
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gboolean interlaced;
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gboolean use_16bit;
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gboolean dither;
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GstVideoFormat from_format;
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ColorSpaceColorSpec from_spec;
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GstVideoFormat to_format;
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ColorSpaceColorSpec to_spec;
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guint32 *palette;
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guint8 *tmpline;
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guint16 *tmpline16;
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guint16 *errline;
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int dest_offset[4];
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int dest_stride[4];
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int src_offset[4];
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int src_stride[4];
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void (*convert) (ColorspaceConvert *convert, guint8 *dest, const guint8 *src);
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void (*getline) (ColorspaceConvert *convert, guint8 *dest, const guint8 *src, int j);
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void (*putline) (ColorspaceConvert *convert, guint8 *dest, const guint8 *src, int j);
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void (*matrix) (ColorspaceConvert *convert);
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void (*getline16) (ColorspaceConvert *convert, guint16 *dest, const guint8 *src, int j);
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void (*putline16) (ColorspaceConvert *convert, guint8 *dest, const guint16 *src, int j);
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void (*matrix16) (ColorspaceConvert *convert);
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void (*dither16) (ColorspaceConvert *convert, int j);
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};
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ColorspaceConvert * colorspace_convert_new (GstVideoFormat to_format,
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ColorSpaceColorSpec from_spec, GstVideoFormat from_format,
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ColorSpaceColorSpec to_spec, int width, int height);
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void colorspace_convert_set_dither (ColorspaceConvert * convert, int type);
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void colorspace_convert_set_interlaced (ColorspaceConvert *convert,
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gboolean interlaced);
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void colorspace_convert_set_palette (ColorspaceConvert *convert,
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const guint32 *palette);
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const guint32 * colorspace_convert_get_palette (ColorspaceConvert *convert);
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void colorspace_convert_free (ColorspaceConvert * convert);
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void colorspace_convert_convert (ColorspaceConvert * convert,
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guint8 *dest, const guint8 *src);
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G_END_DECLS
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#endif /* __GST_COLORSPACE_H__ */
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