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-rw-r--r--src/libfaad/common.h217
1 files changed, 177 insertions, 40 deletions
diff --git a/src/libfaad/common.h b/src/libfaad/common.h
index 143641529..aa40ebe0a 100644
--- a/src/libfaad/common.h
+++ b/src/libfaad/common.h
@@ -1,22 +1,28 @@
/*
-** FAAD - Freeware Advanced Audio Decoder
-** Copyright (C) 2002 M. Bakker
-**
+** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
+** Copyright (C) 2003 M. Bakker, Ahead Software 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
+** along with this program; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
**
-** $Id: common.h,v 1.8 2003/05/26 23:23:26 miguelfreitas Exp $
+** Any non-GPL usage of this software or parts of this software is strictly
+** forbidden.
+**
+** Commercial non-GPL licensing of this software is possible.
+** For more info contact Ahead Software through Mpeg4AAClicense@nero.com.
+**
+** $Id: common.h,v 1.9 2003/12/30 02:00:10 miguelfreitas Exp $
**/
#ifndef __COMMON_H__
@@ -26,12 +32,11 @@
extern "C" {
#endif
-#if __STDC_VERSION__+0 >= 199901L
-#define INLINE inline
-#elif defined(__GNUC__)
#define INLINE __inline
+#ifdef _WIN32
+#define ALIGN __declspec(align(16))
#else
-#define INLINE
+#define ALIGN
#endif
#ifndef max
@@ -41,7 +46,6 @@ extern "C" {
#define min(a, b) (((a) < (b)) ? (a) : (b))
#endif
-
/* COMPILE TIME DEFINITIONS */
/* use double precision */
@@ -49,6 +53,11 @@ extern "C" {
/* use fixed point reals */
//#define FIXED_POINT
+#ifdef _WIN32_WCE
+#define FIXED_POINT
+#endif
+
+
#define ERROR_RESILIENCE
@@ -60,6 +69,10 @@ extern "C" {
#define LTP_DEC
/* Allow decoding of LD profile AAC */
#define LD_DEC
+/* Allow decoding of scalable profiles */
+//#define SCALABLE_DEC
+/* Allow decoding of Digital Radio Mondiale (DRM) */
+//#define DRM
/* LD can't do without LTP */
#ifdef LD_DEC
@@ -71,14 +84,65 @@ extern "C" {
#endif
#endif
+#define ALLOW_SMALL_FRAMELENGTH
-/* END COMPILE TIME DEFINITIONS */
+// Define LC_ONLY_DECODER if you want a pure AAC LC decoder (independant of SBR_DEC)
+//#define LC_ONLY_DECODER
+#ifdef LC_ONLY_DECODER
+ #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
+
+/* FIXED POINT: No MAIN decoding, forced SBR Low Power decoder */
+#ifdef FIXED_POINT
+# ifdef MAIN_DEC
+# undef MAIN_DEC
+# endif
+# ifndef SBR_LOW_POWER
+# define SBR_LOW_POWER
+# endif
+#endif // FIXED_POINT
+
+#ifdef DRM
+# ifndef SCALABLE_DEC
+# define SCALABLE_DEC
+# endif
+#endif
+
+#if ((defined(_WIN32) && !defined(_WIN32_WCE)) /* || ((__GNUC__ >= 3) && defined(__i386__)) */ )
#ifndef FIXED_POINT
-#define POW_TABLE_SIZE 200
+/* includes <xmmintrin.h> to enable SSE intrinsics */
+#define USE_SSE
+#endif
+#endif
+
+#ifdef FIXED_POINT
+#define SBR_DIV(A, B) (((int64_t)A << REAL_BITS)/B)
+#else
+#define SBR_DIV(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)
@@ -96,7 +160,7 @@ typedef float float32_t;
#else
#ifdef HAVE_CONFIG_H
-# include "config.h"
+# include "../config.h"
#endif
#include <stdio.h>
@@ -129,9 +193,7 @@ typedef float float32_t;
# if HAVE_STDINT_H
# include <stdint.h>
# else
-# if !defined(__int8_t_defined)
/* we need these... */
-#define __int8_t_defined
typedef unsigned long long uint64_t;
typedef unsigned long uint32_t;
typedef unsigned short uint16_t;
@@ -140,7 +202,6 @@ typedef long long int64_t;
typedef long int32_t;
typedef short int16_t;
typedef char int8_t;
-# endif
# endif
#endif
#if HAVE_UNISTD_H
@@ -180,12 +241,6 @@ char *strchr(), *strrchr();
#if defined(FIXED_POINT)
- #ifdef HAS_MATHF_H
- #include <mathf.h>
- #else
- #include <math.h>
- #endif
-
#include "fixed.h"
#elif defined(USE_DOUBLE_PRECISION)
@@ -194,23 +249,74 @@ char *strchr(), *strrchr();
#include <math.h>
- #define MUL(A,B) ((A)*(B))
- #define MUL_C_C(A,B) ((A)*(B))
- #define MUL_R_C(A,B) ((A)*(B))
+ #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 REAL_CONST(A) ((real_t)(A))
+ #define COEF_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(A,B) ((A)*(B))
- #define MUL_C_C(A,B) ((A)*(B))
- #define MUL_R_C(A,B) ((A)*(B))
-
- #define REAL_CONST(A) ((real_t)A)
- #define COEF_CONST(A) ((real_t)A)
+#ifdef USE_SSE
+# include <xmmintrin.h>
+#endif
+
+ #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 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);
+ }
+
+#ifndef HAVE_LRINTF
+ #ifdef _WIN32
+ #define HAS_LRINTF
+ static INLINE int lrintf(float f)
+ {
+ int i;
+ __asm
+ {
+ fld f
+ fistp i
+ }
+ return i;
+ }
+ #elif (defined(__i386__) && defined(__GNUC__))
+ #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
+#endif
#ifdef __ICL /* only Intel C compiler has fmath ??? */
@@ -225,6 +331,14 @@ char *strchr(), *strrchr();
#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
@@ -254,19 +368,42 @@ char *strchr(), *strrchr();
#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 */
-uint32_t int_log2(uint32_t val);
-
-uint8_t get_sr_index(uint32_t samplerate);
-int8_t can_decode_ot(uint8_t object_type);
+uint8_t cpu_has_sse();
+uint32_t random_int(void);
+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(int32_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 3.14159265358979323846f
+#define M_PI 3.14159265358979323846
#endif
#ifndef M_PI_2 /* PI/2 */
#define M_PI_2 1.57079632679489661923
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