common.h

au1200 linux2.6.11 硬件解码mae驱动和maiplayer播放器源码

/*
** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
** Copyright (C) 2003-2004 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
** 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.
**
** Commercial non-GPL licensing of this software is possible.
** For more info contact Ahead Software through [e-mail].
**
** $Id: common.h,v 1.50 2004/02/06 12:55:24 menno Exp $
**/

#ifndef __COMMON_H__
#define __COMMON_H__

#ifdef __cplusplus
  extern "C" {
#endif

#define INLINE __inline
#if defined(_WIN32) && !defined(_WIN32_WCE)
  //#define ALIGN __declspec(align(16))
  #define ALIGN 
#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 d ouble precision */
/* #define USE_D OUBLE_PRECISION */
/* use fixed point reals */
#define FIXED_POINT

#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 scalable profiles */
//#define SCALABLE_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 (independent 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  /* FIXIT */
//#define SBR_LOW_POWER
//#define PS_DEC

//#ifndef SBR_LOW_POWER
//#define SBR_LOW_POWER
//#endif

#ifdef DRM
  #ifndef SCALABLE_DEC
    #define SCALABLE_DEC
  #endif
#endif

#ifdef FIXED_POINT
  #define SBR_DIV(A, B) ((real_t)(((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)
  #include <stdio.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;
#else
  #ifdef HAVE_CONFIG_H
    #include "config.h"
  #endif
  
  #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... */
      typedef unsigned long long uint64_t;
      typedef unsigned long uint32_t;
      typedef unsigned short uint16_t;
      typedef unsigned char uint8_t;
      typedef long long int64_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_F LOAT32_T
  //typedef f loat f loat32_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  /* !defined(_WIN32) */

#ifdef WORDS_BIGENDIAN
  #define ARCH_IS_BIG_ENDIAN
#endif

/* FIXED_POINT doesn't work with SSR yet */
#ifdef FIXED_POINT
  #undef SSR_DEC
#endif


#if defined(FIXED_POINT)

  #include "fixed.h"

//#elif defined(USE_D OUBLE_PRECISION)
//
//  typedef d ouble 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 FRAC_CONST(A) ((real_t)(A)) /* pure fractional part */
//
#else /* Normal f loating point operation */

  typedef float real_t;
  typedef float float32_t;

  //#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_VAR(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 */
  
  /* 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 _WIN32
  //    #define HAS_LRINTF
  //    static INLINE int lrintf(f loat 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(f loat f)
  //    {
  //        int i;
  //        __asm__ __volatile__ (
  //            "flds %1        \n\t"
  //            "fistpl %0      \n\t"
  //            : "=m" (i)
  //            : "m" (f));
  //        return i;
  //    }
  //  #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

#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 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 3.14159265358979323846
#endif
#ifndef M_PI_2 /* PI/2 */
  #define M_PI_2 1.57079632679489661923
#endif


#ifdef __cplusplus
  }
#endif
#endif