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Diffstat (limited to 'faad2/src/libfaad/common.h')
| -rw-r--r-- | faad2/src/libfaad/common.h | 450 |
1 files changed, 450 insertions, 0 deletions
diff --git a/faad2/src/libfaad/common.h b/faad2/src/libfaad/common.h new file mode 100644 index 0000000..b03c8b9 --- /dev/null +++ b/faad2/src/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 1.77 2009/02/05 00:51:03 menno Exp $
+**/
+
+#ifndef __COMMON_H__
+#define __COMMON_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include "../config.h"
+#endif
+
+#include "neaacdec.h"
+
+#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 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(__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 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
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