ref: 3ba088193fc0e9b022957fb348cfdfe1d60daab7
dir: aacdec/libfaad/common.h
/*
** 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 __plan9__
#include <u.h>
#include <libc.h>
#define INLINE
typedef usize size_t;
#include "../config_plan9.h"
#else
#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
#ifdef HAVE_CONFIG_H
# include "../config.h"
#endif
#include "neaacdec.h"
#ifndef INLINE
#if 1
#define INLINE __inline
#else
#define INLINE inline
#endif
#endif
#if 0 //defined(_WIN32) && !defined(_WIN32_WCE)
#define ALIGN __declspec(align(16))
#else
#define ALIGN
#endif
#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 */
/* use double precision */
/* #define USE_DOUBLE_PRECISION */
/* use fixed point reals */
//#define FIXED_POINT
//#define BIG_IQ_TABLE
/* Use if target platform has address generators with autoincrement */
//#define PREFER_POINTERS
#ifdef _WIN32_WCE
#define FIXED_POINT
#endif
#ifdef __BFIN__
#define FIXED_POINT
#endif
#define ERROR_RESILIENCE
/* Allow decoding of MAIN profile AAC */
#define MAIN_DEC
/* Allow decoding of SSR profile AAC */
#define SSR_DEC
/* Allow decoding of LTP profile AAC */
#define LTP_DEC
/* Allow decoding of LD profile AAC */
#define LD_DEC
/* 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 ALLOW_SMALL_FRAMELENGTH
// 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
#define SBR_DEC
//#define SBR_LOW_POWER
#define PS_DEC
#ifdef SBR_LOW_POWER
#undef PS_DEC
#endif
/* 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_BITS)/B)
#define DIV_C(A, B) (((int64_t)A << COEF_BITS)/B)
#else
#define DIV_R(A, B) ((A)/(B))
#define DIV_C(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>
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
#include <stdio.h>
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#if STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# if HAVE_STDLIB_H
# include <stdlib.h>
# endif
#endif
#if HAVE_STRING_H
# if !STDC_HEADERS && HAVE_MEMORY_H
# include <memory.h>
# endif
# include <string.h>
#endif
#if HAVE_STRINGS_H
# include <strings.h>
#endif
#if HAVE_INTTYPES_H
# include <inttypes.h>
#else
# if HAVE_STDINT_H
# include <stdint.h>
# else
/* we need these... */
#ifndef __TCS__
typedef unsigned long long uint64_t;
typedef signed long long int64_t;
#else
typedef unsigned long uint64_t;
typedef signed long int64_t;
#endif
typedef unsigned long uint32_t;
typedef unsigned short uint16_t;
typedef unsigned char uint8_t;
typedef signed long int32_t;
typedef signed short int16_t;
typedef signed char int8_t;
# endif
#endif
#if HAVE_UNISTD_H
//# include <unistd.h>
#endif
#ifndef HAVE_FLOAT32_T
typedef float float32_t;
#endif
#if STDC_HEADERS
# include <string.h>
#else
# if !HAVE_STRCHR
# define strchr index
# define strrchr rindex
# endif
char *strchr(), *strrchr();
# if !HAVE_MEMCPY
# define memcpy(d, s, n) bcopy((s), (d), (n))
# define memmove(d, s, n) bcopy((s), (d), (n))
# endif
#endif
#endif
#ifdef WORDS_BIGENDIAN
#define ARCH_IS_BIG_ENDIAN
#endif
/* 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);
}
#if defined(_WIN32) && defined(_M_IX86) && !defined(__MINGW32__)
#ifndef HAVE_LRINTF
#define HAS_LRINTF
static INLINE int lrintf(float f)
{
int i;
__asm
{
fld f
fistp i
}
return i;
}
#endif /* HAVE_LRINTF */
#elif (defined(__i386__) && defined(__GNUC__) && \
!defined(__CYGWIN__) && !defined(__MINGW32__))
#ifndef HAVE_LRINTF
#define HAS_LRINTF
// from http://www.stereopsis.com/FPU.html
static INLINE int lrintf(float f)
{
int i;
__asm__ __volatile__ (
"flds %1 \n\t"
"fistpl %0 \n\t"
: "=m" (i)
: "m" (f));
return i;
}
#endif /* HAVE_LRINTF */
#endif
#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
#ifdef HAVE_LRINTF
# define HAS_LRINTF
# define _ISOC9X_SOURCE 1
# define _ISOC99_SOURCE 1
# define __USE_ISOC9X 1
# define __USE_ISOC99 1
#endif
#ifdef HAVE_SINF
# define sin sinf
#error
#endif
#ifdef HAVE_COSF
# define cos cosf
#endif
#ifdef HAVE_LOGF
# define log logf
#endif
#ifdef HAVE_EXPF
# define exp expf
#endif
#ifdef HAVE_FLOORF
# define floor floorf
#endif
#ifdef HAVE_CEILF
# define ceil ceilf
#endif
#ifdef HAVE_SQRTF
# define sqrt sqrtf
#endif
#endif
#endif
#ifndef HAS_LRINTF
/* standard cast */
#define lrintf(f) ((int32_t)(f))
#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);
uint32_t wl_min_lzc(uint32_t x);
#ifdef FIXED_POINT
#define LOG2_MIN_INF REAL_CONST(-10000)
int32_t log2_int(uint32_t val);
int32_t log2_fix(uint32_t val);
int32_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