ref: 471274ead7d0d41c9540b7f9e05ed015cd178b9b
dir: /sys/src/cmd/audio/mp3enc/quantize.h/
/*
* MP3 quantization
*
* Copyright (c) 1999 Mark Taylor
*
* 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 LAME_QUANTIZE_H
#define LAME_QUANTIZE_H
#include "util.h"
/*#include "l3side.h"
*/
void iteration_loop( lame_global_flags *gfp,
FLOAT8 pe[2][2], FLOAT8 ms_ratio[2],
FLOAT8 xr_org[2][2][576], III_psy_ratio ratio[2][2],
int l3_enc[2][2][576],
III_scalefac_t scalefac[2][2]);
void VBR_iteration_loop( lame_global_flags *gfp,
FLOAT8 pe[2][2], FLOAT8 ms_ratio[2],
FLOAT8 xr_org[2][2][576], III_psy_ratio ratio[2][2],
int l3_enc[2][2][576],
III_scalefac_t scalefac[2][2]);
void ABR_iteration_loop( lame_global_flags *gfp,
FLOAT8 pe[2][2], FLOAT8 ms_ratio[2],
FLOAT8 xr_org[2][2][576], III_psy_ratio ratio[2][2],
int l3_enc[2][2][576],
III_scalefac_t scalefac[2][2]);
/*
* vbrquantize.c
*/
void VBR_quantize(
lame_global_flags *gfp,
FLOAT8 pe[2][2],
FLOAT8 ms_ener_ratio[2],
FLOAT8 xr[2][2][576],
III_psy_ratio ratio[2][2],
int l3_enc[2][2][576],
III_scalefac_t scalefac[2][2]);
/* used by VBR_iteration_loop() */
int VBR_noise_shaping2(
lame_global_flags *gfp,
FLOAT8 xr [576],
FLOAT8 xr34orig [576],
III_psy_ratio * ratio,
int l3_enc [576],
int digital_silence,
int minbits,
int maxbits,
III_scalefac_t * scalefac,
III_psy_xmin * l3_xmin,
int gr,
int ch );
#endif /* LAME_QUANTIZE_H */