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/*
* a52_internal.h
* Copyright (C) 2000-2001 Michel Lespinasse <walken@zoy.org>
* Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
*
* This file is part of a52dec, a free ATSC A-52 stream decoder.
* See http://liba52.sourceforge.net/ for updates.
*
* a52dec is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* a52dec 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define LEVEL_PLUS6DB 2.0
#define LEVEL_PLUS3DB 1.4142135623730951
#define LEVEL_3DB 0.7071067811865476
#define LEVEL_45DB 0.5946035575013605
#define LEVEL_6DB 0.5
#define EXP_REUSE (0)
#define EXP_D15 (1)
#define EXP_D25 (2)
#define EXP_D45 (3)
#define DELTA_BIT_REUSE (0)
#define DELTA_BIT_NEW (1)
#define DELTA_BIT_NONE (2)
#define DELTA_BIT_RESERVED (3)
void bit_allocate (a52_state_t * state, a52_ba_t * ba, int bndstart,
int start, int end, int fastleak, int slowleak,
uint8_t * exp, int8_t * bap);
int downmix_init (int input, int flags, sample_t * level,
sample_t clev, sample_t slev);
void downmix_accel_init(uint32_t mm_accel);
int downmix_coeff (sample_t * coeff, int acmod, int output, sample_t level,
sample_t clev, sample_t slev);
extern void (*downmix) (sample_t * samples, int acmod, int output, sample_t bias,
sample_t clev, sample_t slev);
extern void (*upmix) (sample_t * samples, int acmod, int output);
void imdct_init (uint32_t mm_accel);
extern void (* imdct_256) (sample_t * data, sample_t * delay, sample_t bias);
extern void (* imdct_512) (sample_t * data, sample_t * delay, sample_t bias);
void imdct_do_256_mlib (sample_t * data, sample_t * delay, sample_t bias);
void imdct_do_512_mlib (sample_t * data, sample_t * delay, sample_t bias);
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