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Diffstat (limited to 'contrib/libfaad/common.h')
| -rw-r--r-- | contrib/libfaad/common.h | 450 |
1 files changed, 450 insertions, 0 deletions
diff --git a/contrib/libfaad/common.h b/contrib/libfaad/common.h new file mode 100644 index 000000000..4419f1eb5 --- /dev/null +++ b/contrib/libfaad/common.h @@ -0,0 +1,450 @@ +/* +** 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 1.72 2007/11/01 12:33:30 menno Exp $ +**/ + +#ifndef __COMMON_H__ +#define __COMMON_H__ + +#ifdef __cplusplus +extern "C" { +#endif + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#if 1 +#define INLINE __inline +#else +#define INLINE inline +#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) */ +//#define DRM +//#define DRM_PS + +/* 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 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 __int64 int64_t; +typedef __int32 int32_t; +typedef __int16 int16_t; +typedef __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 long long int64_t; +#else +typedef unsigned long uint64_t; +typedef long int64_t; +#endif +typedef unsigned long uint32_t; +typedef unsigned short uint16_t; +typedef unsigned char uint8_t; +typedef long int32_t; +typedef short int16_t; +typedef 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(__MINGW32__) + #define HAS_LRINTF + static INLINE int lrintf(float f) + { + int i; + __asm + { + fld f + fistp i + } + return i; + } + #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 + + #include <math.h> + +#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 ones32(uint32_t x); +uint32_t floor_log2(uint32_t x); +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 |