aac_enc_psychoacoustic_fp.h

这是在PCA下的基于IPP库示例代码例子,在网上下了IPP的库之后,设置相关参数就可以编译该代码.

/*
//
//                  INTEL CORPORATION PROPRIETARY INFORMATION
//     This software is supplied under the terms of a license agreement or
//     nondisclosure agreement with Intel Corporation and may not be copied
//     or disclosed except in accordance with the terms of that agreement.
//          Copyright(c) 2003-2005 Intel Corporation. All Rights Reserved.
//
//     Intel Integrated Performance Primitives AAC Encode Sample for Windows*
//
//  By downloading and installing this sample, you hereby agree that the
//  accompanying Materials are being provided to you under the terms and
//  conditions of the End User License Agreement for the Intel Integrated
//  Performance Primitives product previously accepted by you. Please refer
//  to the file ipplic.htm located in the root directory of your Intel IPP
//  product installation for more information.
//
//  MPEG-4 and AAC are international standards promoted by ISO, IEC, ITU, ETSI
//  and other organizations. Implementations of these standards, or the standard
//  enabled platforms may require licenses from various entities, including
//  Intel Corporation.
//
*/

#ifndef __PSYCHOACOUSTIC_H
#define __PSYCHOACOUSTIC_H

#include "ipps.h"
#include "ippac.h"
#include "aaccmn_const.h"
#include "aac_enc.h"
#include "align.h"

#define MAX_PPT_SHORT 48
#define MAX_PPT_LONG  72
#define NUM_UNPRED_LINES_LONG 6

typedef struct
{
  int                 sampling_frequency;
  int                 num_ptt;
  int*                w_low;
  int*                w_high;
  float*              w_width;
  float*              bval;
  float*              qsthr;

} sPsyPartitionTable;

typedef struct
{
  __ALIGN float       r[3][__ALIGNED(1024)];
  __ALIGN float       re[3][__ALIGNED(1024)];
  __ALIGN float       im[3][__ALIGNED(1024)];

  __ALIGN float       r_short[3][8][__ALIGNED(128)];
  __ALIGN float       re_short[3][8][__ALIGNED(128)];
  __ALIGN float       im_short[3][8][__ALIGNED(128)];

  __ALIGN float       smr_long [2][__ALIGNED(MAX_SFB)];
  __ALIGN float       smr_short[2][__ALIGNED(MAX_SFB)];

  __ALIGN float       nb_long[2][__ALIGNED(MAX_PPT_LONG)];
  __ALIGN float       nb_short[2][8][__ALIGNED(MAX_PPT_SHORT)];

  int                 block_type;
  int                 desired_block_type;
  int                 next_desired_block_type;

  float               next_frame_PE;
  float               curr_frame_PE;

} sPsychoacousticBlock;

typedef struct
{
  __ALIGN float       hann_window_long[1024*2];
  __ALIGN float       hann_window_short[128*2];

  __ALIGN float       sprdngf_long[MAX_PPT_LONG * MAX_PPT_LONG];
  __ALIGN float       sprdngf_short[MAX_PPT_SHORT * MAX_PPT_SHORT];

  __ALIGN float       rnorm_long[MAX_PPT_LONG];
  __ALIGN float       rnorm_short[MAX_PPT_SHORT];

  float*              input_data[2];

  int                 iblen_long;
  int                 iblen_short;

  int                 current_f_r_index;
  int                 prev_f_r_index;
  int                 prev_prev_f_r_index;

  int                 nb_curr_index;
  int                 nb_prev_index;

  int*                sfb_offset_long;
  int*                sfb_offset_short;
  int                 num_sfb_long;
  int                 num_sfb_short;

  int                 sampling_frequency_index;

  sPsyPartitionTable* longWindow;
  sPsyPartitionTable* shortWindow;

  IppsFFTSpec_R_32f*  pFFTSpecShort;
  IppsFFTSpec_R_32f*  pFFTSpecLong;
  Ipp8u*              pBuffer;
} sPsychoacousticBlockCom;

extern sPsyPartitionTable psy_partition_tables_long[];
extern sPsyPartitionTable psy_partition_tables_short[];

#ifdef  __cplusplus
extern "C" {
#endif

  AACStatus InitPsychoacousticCom(sPsychoacousticBlockCom* pBlock,
                                  int sf_index);
  void InitPsychoacoustic(sPsychoacousticBlock* pBlock);
  void FreePsychoacousticCom(sPsychoacousticBlockCom* pBlock);

  void Psychoacoustic(sPsychoacousticBlock* pBlock,
                      sPsychoacousticBlockCom* pBlockCom);

#ifdef  __cplusplus
}
#endif

#ifndef PI
#define PI 3.14159265359f
#endif

#endif//__PSYCHOACOUSTIC_H