301 lines
6.4 KiB
C
301 lines
6.4 KiB
C
/*
|
|
** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
|
|
** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com
|
|
**
|
|
** This program 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.
|
|
**
|
|
** This program 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.
|
|
**
|
|
** Any non-GPL usage of this software or parts of this software is strictly
|
|
** forbidden.
|
|
**
|
|
** The "appropriate copyright message" mentioned in section 2c of the GPLv2
|
|
** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com"
|
|
**
|
|
** Commercial non-GPL licensing of this software is possible.
|
|
** For more info contact Nero AG through Mpeg4AAClicense@nero.com.
|
|
**
|
|
** $Id: common.h,v 1.79 2015/01/26 17:48:53 knik Exp $
|
|
**/
|
|
|
|
#ifndef __COMMON_H__
|
|
#define __COMMON_H__
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include "config.h"
|
|
|
|
|
|
#include "neaacdec.h"
|
|
#define INLINE __inline
|
|
#define ALIGN
|
|
|
|
#ifndef max
|
|
#define max(a, b) (((a) > (b)) ? (a) : (b))
|
|
#endif
|
|
#ifndef min
|
|
#define min(a, b) (((a) < (b)) ? (a) : (b))
|
|
#endif
|
|
|
|
/* COMPILE TIME DEFINITIONS */
|
|
|
|
|
|
/* Allow decoding of Digital Radio Mondiale (DRM) */
|
|
#ifdef DRM_SUPPORT
|
|
#define DRM
|
|
#define DRM_PS
|
|
#endif
|
|
|
|
/* LD can't do without LTP */
|
|
#ifdef LD_DEC
|
|
#ifndef ERROR_RESILIENCE
|
|
#define ERROR_RESILIENCE
|
|
#endif
|
|
#ifndef LTP_DEC
|
|
#define LTP_DEC
|
|
#endif
|
|
#endif
|
|
|
|
|
|
// Define LC_ONLY_DECODER if you want a pure AAC LC decoder (independant of SBR_DEC and PS_DEC)
|
|
//#define LC_ONLY_DECODER
|
|
#ifdef LC_ONLY_DECODER
|
|
#undef LD_DEC
|
|
#undef LTP_DEC
|
|
#undef MAIN_DEC
|
|
#undef SSR_DEC
|
|
#undef DRM
|
|
#undef DRM_PS
|
|
#undef ALLOW_SMALL_FRAMELENGTH
|
|
#undef ERROR_RESILIENCE
|
|
#endif
|
|
|
|
#ifndef DISABLE_SBR
|
|
# define SBR_DEC
|
|
# ifndef SBR_LOW_POWER
|
|
# define PS_DEC
|
|
# endif // SBR_LOW_POWER
|
|
#endif // DISABLE_SBR
|
|
|
|
/* FIXED POINT: No MAIN decoding */
|
|
#ifdef FIXED_POINT
|
|
# ifdef MAIN_DEC
|
|
# undef MAIN_DEC
|
|
# endif
|
|
#endif // FIXED_POINT
|
|
|
|
#ifdef DRM
|
|
# ifndef ALLOW_SMALL_FRAMELENGTH
|
|
# define ALLOW_SMALL_FRAMELENGTH
|
|
# endif
|
|
# undef LD_DEC
|
|
# undef LTP_DEC
|
|
# undef MAIN_DEC
|
|
# undef SSR_DEC
|
|
#endif
|
|
|
|
|
|
#ifdef FIXED_POINT
|
|
#define DIV_R(A, B) (((int64_t)A * REAL_PRECISION)/B)
|
|
#define DIV_C(A, B) (((int64_t)A * COEF_PRECISION)/B)
|
|
#define DIV_F(A, B) (((int64_t)A * FRAC_PRECISION)/B)
|
|
#else
|
|
#define DIV_R(A, B) ((A)/(B))
|
|
#define DIV_C(A, B) ((A)/(B))
|
|
#define DIV_F(A, B) ((A)/(B))
|
|
#endif
|
|
|
|
#ifndef SBR_LOW_POWER
|
|
#define qmf_t complex_t
|
|
#define QMF_RE(A) RE(A)
|
|
#define QMF_IM(A) IM(A)
|
|
#else
|
|
#define qmf_t real_t
|
|
#define QMF_RE(A) (A)
|
|
#define QMF_IM(A)
|
|
#endif
|
|
|
|
|
|
/* END COMPILE TIME DEFINITIONS */
|
|
|
|
#if defined(_WIN32) && !defined(__MINGW32__)
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
typedef unsigned __int64 uint64_t;
|
|
typedef unsigned __int32 uint32_t;
|
|
typedef unsigned __int16 uint16_t;
|
|
typedef unsigned __int8 uint8_t;
|
|
typedef signed __int64 int64_t;
|
|
typedef signed __int32 int32_t;
|
|
typedef signed __int16 int16_t;
|
|
typedef signed __int8 int8_t;
|
|
typedef float float32_t;
|
|
|
|
|
|
#else /* WIN */
|
|
|
|
#include <stdio.h>
|
|
#include <sys/types.h>
|
|
#if HAVE_SYS_STAT_H
|
|
# include <sys/stat.h>
|
|
#endif
|
|
#include <stdlib.h>
|
|
#include <stddef.h>
|
|
#include <string.h>
|
|
|
|
#if HAVE_STRINGS_H
|
|
# include <strings.h>
|
|
#endif
|
|
#include <stdint.h>
|
|
|
|
|
|
#ifndef HAVE_FLOAT32_T
|
|
typedef float float32_t;
|
|
#endif
|
|
|
|
#endif /* WIN */
|
|
|
|
/* FIXED_POINT doesn't work with MAIN and SSR yet */
|
|
#ifdef FIXED_POINT
|
|
#undef MAIN_DEC
|
|
#undef SSR_DEC
|
|
#endif
|
|
|
|
|
|
#if defined(FIXED_POINT)
|
|
|
|
#include "fixed.h"
|
|
|
|
#elif defined(USE_DOUBLE_PRECISION)
|
|
|
|
typedef double real_t;
|
|
|
|
#include <math.h>
|
|
|
|
#define MUL_R(A,B) ((A)*(B))
|
|
#define MUL_C(A,B) ((A)*(B))
|
|
#define MUL_F(A,B) ((A)*(B))
|
|
|
|
/* Complex multiplication */
|
|
static INLINE void ComplexMult(real_t *y1, real_t *y2,
|
|
real_t x1, real_t x2, real_t c1, real_t c2)
|
|
{
|
|
*y1 = MUL_F(x1, c1) + MUL_F(x2, c2);
|
|
*y2 = MUL_F(x2, c1) - MUL_F(x1, c2);
|
|
}
|
|
|
|
#define REAL_CONST(A) ((real_t)(A))
|
|
#define COEF_CONST(A) ((real_t)(A))
|
|
#define Q2_CONST(A) ((real_t)(A))
|
|
#define FRAC_CONST(A) ((real_t)(A)) /* pure fractional part */
|
|
|
|
#else /* Normal floating point operation */
|
|
|
|
typedef float real_t;
|
|
|
|
#define MUL_R(A,B) ((A)*(B))
|
|
#define MUL_C(A,B) ((A)*(B))
|
|
#define MUL_F(A,B) ((A)*(B))
|
|
|
|
#define REAL_CONST(A) ((real_t)(A))
|
|
#define COEF_CONST(A) ((real_t)(A))
|
|
#define Q2_CONST(A) ((real_t)(A))
|
|
#define FRAC_CONST(A) ((real_t)(A)) /* pure fractional part */
|
|
|
|
/* Complex multiplication */
|
|
static INLINE void ComplexMult(real_t *y1, real_t *y2,
|
|
real_t x1, real_t x2, real_t c1, real_t c2)
|
|
{
|
|
*y1 = MUL_F(x1, c1) + MUL_F(x2, c2);
|
|
*y2 = MUL_F(x2, c1) - MUL_F(x1, c2);
|
|
}
|
|
|
|
#ifdef __ICL /* only Intel C compiler has fmath ??? */
|
|
|
|
#include <mathf.h>
|
|
|
|
#define sin sinf
|
|
#define cos cosf
|
|
#define log logf
|
|
#define floor floorf
|
|
#define ceil ceilf
|
|
#define sqrt sqrtf
|
|
|
|
#else
|
|
|
|
#include <math.h>
|
|
|
|
#define sin sinf
|
|
#define cos cosf
|
|
#define log logf
|
|
#define exp expf
|
|
#define floor floorf
|
|
#define ceil ceilf
|
|
#define sqrt sqrtf
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
typedef real_t complex_t[2];
|
|
#define RE(A) (A)[0]
|
|
#define IM(A) (A)[1]
|
|
|
|
|
|
/* common functions */
|
|
uint8_t cpu_has_sse(void);
|
|
uint32_t ne_rng(uint32_t *__r1, uint32_t *__r2);
|
|
#ifdef FIXED_POINT
|
|
uint32_t wl_min_lzc(uint32_t x);
|
|
#define LOG2_MIN_INF REAL_CONST(-10000)
|
|
int32_t log2_int(uint64_t val);
|
|
uint64_t pow2_int(real_t val);
|
|
real_t pow2_fix(real_t val);
|
|
#endif
|
|
uint8_t get_sr_index(const uint32_t samplerate);
|
|
uint8_t max_pred_sfb(const uint8_t sr_index);
|
|
uint8_t max_tns_sfb(const uint8_t sr_index, const uint8_t object_type,
|
|
const uint8_t is_short);
|
|
uint32_t get_sample_rate(const uint8_t sr_index);
|
|
int8_t can_decode_ot(const uint8_t object_type);
|
|
|
|
void *faad_malloc(size_t size);
|
|
void faad_free(void *b);
|
|
|
|
//#define PROFILE
|
|
#ifdef PROFILE
|
|
static int64_t faad_get_ts()
|
|
{
|
|
__asm
|
|
{
|
|
rdtsc
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifndef M_PI
|
|
#define M_PI 3.14159265358979323846
|
|
#endif
|
|
#ifndef M_PI_2 /* PI/2 */
|
|
#define M_PI_2 1.57079632679489661923
|
|
#endif
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif
|