/*

  * Simple IDCT
  *
  * Copyright (c) 2001 Michael Niedermayer <michaelni@gmx.at>
  *

  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or

  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either

  * version 2.1 of the License, or (at your option) any later version.

  *

  * FFmpeg 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
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public

  * License along with FFmpeg; if not, write to the Free Software

  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  */

 /**

  * @file

  * simple idct header.
  */

 #ifndef AVCODEC_SIMPLE_IDCT_H
 #define AVCODEC_SIMPLE_IDCT_H

 #include <stddef.h>

 #include <stdint.h>
 

 void ff_simple_idct_put_8(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
 void ff_simple_idct_add_8(uint8_t *dest, ptrdiff_t line_size, int16_t *block);

 void ff_simple_idct_8(int16_t *block);

 void ff_simple_idct_put_10(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
 void ff_simple_idct_add_10(uint8_t *dest, ptrdiff_t line_size, int16_t *block);

 void ff_simple_idct_10(int16_t *block);

 void ff_simple_idct_put_12(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
 void ff_simple_idct_add_12(uint8_t *dest, ptrdiff_t line_size, int16_t *block);

 void ff_simple_idct_12(int16_t *block);
 

 /**
  * Special version of ff_simple_idct_10() which does dequantization
  * and scales by a factor of 2 more between the two IDCTs to account
  * for larger scale of input coefficients.
  */

 void ff_prores_idct(int16_t *block, const int16_t *qmat);

 void ff_simple_idct248_put(uint8_t *dest, ptrdiff_t line_size, int16_t *block);

 void ff_simple_idct84_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
 void ff_simple_idct48_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
 void ff_simple_idct44_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block);

 #endif /* AVCODEC_SIMPLE_IDCT_H */