common/quant.h

   1 /*****************************************************************************
   2  * quant.h: h264 encoder library
   3  *****************************************************************************
   4  * Copyright (C) 2005-2008 x264 project
   5  *
   6  * Authors: Loren Merritt <lorenm@u.washington.edu>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.
  21  *****************************************************************************/
  22
  23 #ifndef X264_QUANT_H
  24 #define X264_QUANT_H
  25
  26 typedef struct
  27 {
  28     void (*quant_8x8)( int16_t dct[8][8], uint16_t mf[64], uint16_t bias[64] );
  29     void (*quant_4x4)( int16_t dct[4][4], uint16_t mf[16], uint16_t bias[16] );
  30     void (*quant_4x4_dc)( int16_t dct[4][4], int mf, int bias );
  31     void (*quant_2x2_dc)( int16_t dct[2][2], int mf, int bias );
  32
  33     void (*dequant_8x8)( int16_t dct[8][8], int dequant_mf[6][8][8], int i_qp );
  34     void (*dequant_4x4)( int16_t dct[4][4], int dequant_mf[6][4][4], int i_qp );
  35     void (*dequant_4x4_dc)( int16_t dct[4][4], int dequant_mf[6][4][4], int i_qp );
  36
  37     void (*denoise_dct)( int16_t *dct, uint32_t *sum, uint16_t *offset, int size );
  38
  39     int (*decimate_score15)( int16_t *dct );
  40     int (*decimate_score16)( int16_t *dct );
  41     int (*decimate_score64)( int16_t *dct );
  42     int (*coeff_last[6])( int16_t *dct );
  43 } x264_quant_function_t;
  44
  45 void x264_quant_init( x264_t *h, int cpu, x264_quant_function_t *pf );
  46
  47 #endif