mp3enc_own_fp.h

audio-video-codecs.rar语音编解码器

/*//////////////////////////////////////////////////////////////////////////////
//
//                  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) 2006-2007 Intel Corporation. All Rights Reserved.
//
*/

#ifndef __MP3ENC_OWN_FP_H__
#define __MP3ENC_OWN_FP_H__

#include "math.h"
#include "mp3enc_own.h"

#ifdef __cplusplus
extern "C" {
#endif

#ifndef PI
#define PI 3.14159265359f
#endif

typedef Ipp32f samplefbout[2][18][32];

struct _MP3Enc {
    MP3Enc_com com;

// mdct
    IppsMDCTFwdSpec_32f *pMDCTSpec12;
    IppsMDCTFwdSpec_32f *pMDCTSpec36;
    Ipp8u *pMDCTbuf;

    IppsFilterSpec_PQMF_MP3 *pPQMFSpec[NUM_CHANNELS];
    Ipp8u *pqmf_mem;
    Ipp32s pqmf_size;

    VM_ALIGN16_DECL(Ipp32f) mdct_win[4][36];
    Ipp32f ca[8], cs[8];

//  ------//-------
    VM_ALIGN16_DECL(Ipp32f) input_buffer[NUM_CHANNELS+LFE_CHANNEL][480 + 1152];
    VM_ALIGN16_DECL(samplefbout) fbout_data[NUM_CHANNELS];
    VM_ALIGN16_DECL(Ipp32f) mdct_out[2][2][576];
    samplefbout *fbout[3];
    Ipp32s fbout_prev;
    Ipp32f mc_lfe_buf[12];

    VM_ALIGN16_DECL(Ipp32f) pa_hann_window_long[512*2];
    VM_ALIGN16_DECL(Ipp32f) pa_hann_window_short[128*2];
    Ipp32f mdct_line_abs[576];
    Ipp32f mdct_scaled[576];
    Ipp32f mdct_rqnt[576];

    Ipp32f pa_sprdngf_long[MAX_PPT_LONG * MAX_PPT_LONG];
    Ipp32f pa_sprdngf_short[MAX_PPT_SHORT * MAX_PPT_SHORT];

    Ipp32f pa_rnorm_long[MAX_PPT_LONG];
    Ipp32f pa_rnorm_short[MAX_PPT_SHORT];

    Ipp32f pa_nb_long[NUM_CHANNELS][2][MAX_PPT_LONG];

    VM_ALIGN16_DECL(Ipp32f)  fft_line_long[2][2*512+2];
    VM_ALIGN16_DECL(Ipp32f)  fft_line_short[2][3][2*128+2];
    Ipp32f pa_ratio_l[2][4][SBBND_L];
    Ipp32f pa_ratio_s[2][4][3][SBBND_S];
    Ipp32f pa_ratio_l_next[4][SBBND_L];
    Ipp32f pa_ratio_s_next[4][3][SBBND_S];

    Ipp32f ms_pwr[2];
    Ipp32f ms_coef[2], ms_coef_next;
    IppsFFTSpec_R_32f* pa_pFFTSpecShort;
    IppsFFTSpec_R_32f* pa_pFFTSpecLong;
    Ipp8u* pa_pBuffer;

    VM_ALIGN16_DECL(Ipp32f) pa_r[NUM_CHANNELS][3][512];
    VM_ALIGN16_DECL(Ipp32f) pa_re[NUM_CHANNELS][3][512];
    VM_ALIGN16_DECL(Ipp32f) pa_im[NUM_CHANNELS][3][512];

    VM_ALIGN16_DECL(Ipp32f) pa_r_short[4][3][3][128];
    VM_ALIGN16_DECL(Ipp32f) pa_re_short[4][3][3][128];
    VM_ALIGN16_DECL(Ipp32f) pa_im_short[4][3][3][128];
/* l12 */
    VM_ALIGN16_DECL(Ipp32f) pa_snr[NUM_CHANNELS+1][32];
    Ipp32f *snr;
/* *** */
    Ipp32f pa_next_frame_PE[4];
    Ipp32f pa_curr_frame_PE[4];
    Ipp32f pa_curr_frame_PE_st[2][4];

    Ipp32s start_common_scalefac;
    Ipp32s finish_common_scalefac;
    Ipp32s common_scalefactor_update[2];
    Ipp32s last_frame_common_scalefactor[2];
    Ipp32s pa_iblen_long; // = 512
    Ipp32s pa_iblen_short;// = 128

    Ipp32s pa_current_f_r_index[NUM_CHANNELS];  // Can be 0, 1, 2

    Ipp32s pa_num_ptt_long;
    Ipp32s pa_num_ptt_short;

    Ipp32s pa_nb_curr_index[NUM_CHANNELS];
    Ipp32s pa_nb_prev_index[NUM_CHANNELS];

    Ipp32s pa_desired_block_type[4];
    Ipp32s pa_next_desired_block_type[2][4];
};

typedef struct _ptblthr_12 {
  Ipp32s numlines;
  Ipp32f absthr;
} ptblthr_12;

typedef struct _ptbl_l {
  Ipp32s numlines;
  Ipp32f bval;
} ptbl_l;

typedef struct _ptbl_s {
  Ipp32s numlines;
  Ipp32f qthr;
  Ipp32f SNR;
  Ipp32f bval;
} ptbl_s;

typedef struct _p2sb {
  Ipp32s bu;
  Ipp32s bo;
  Ipp32f w1;
  Ipp32f w2;
} p2sb;

extern const Ipp32f mp3enc_ptbl_TMN_l2[3][CBANDS_12];
extern const Ipp32f mp3enc_ptbl_minval_l12[3][CBANDS_12];
extern const Ipp32f mp3enc_ptbl_bval_l12[3][CBANDS_12];
extern const Ipp32s mp3enc_ptbl_numlines_l12[3][CBANDS_12];

extern const ptblthr_12 mp3enc_absthr[3][132];

extern const ptbl_l mp3enc_ptbl_l[3][CBANDS_l];
extern const ptbl_s mp3enc_ptbl_s[3][CBANDS_s];
extern const p2sb mp3enc_p2sb_l[3][SBBND_L];
extern const p2sb mp3enc_p2sb_s[3][SBBND_S];

MP3Status mp3enc_mdctInit(MP3Enc *state, Ipp8u *mem, Ipp32s *size);
Ipp32s mp3enc_mdctInSubband(MP3Enc *state, Ipp32f *in, Ipp32f *out, Ipp32s block_type);
Ipp32s mp3enc_mdctBlock(MP3Enc *state);

Ipp32s mp3enc_quantization_l1(MP3Enc *state);
Ipp32s mp3enc_quantization_l2(MP3Enc *state);
Ipp32s mp3enc_quantization_l3(MP3Enc *state);

MP3Status   mp3enc_psychoacousticInit(MP3Enc *state, Ipp8u *mem, Ipp32s *size);
void   mp3enc_psychoacoustic_l1(MP3Enc *state, Ipp32f **pa_buffer);
void   mp3enc_psychoacoustic_l2(MP3Enc *state, Ipp32f **pa_buffer);
void   mp3enc_psychoacoustic_l3(MP3Enc *state, Ipp32f **pa_buffer);

void mp3enc_mc_normalizing (MP3Enc *state);
void mp3enc_mc_matricing (MP3Enc *state);

#ifdef __cplusplus
}
#endif

#endif