Commit 9808fde9 authored by Sandesh Venkatesh's avatar Sandesh Venkatesh
Browse files

SBA dirac fixed point changes, stereo_mdct_core_dec updates 

[x] Add converions for TonalMDCTConceal_UpdateState,v_multc_fixed
[x] Sync all the intermediate converions for subfunctions present in
ivas_mdct_core_tns_ns_fx
[x] Added fixed function call in stereo_mdct_core_dec_fx
[x] Integrated fixed point implementation of ivas_sba_dirac_stereo_dec
parent 66189989

lib_com/ivas_cnst.h

+2 −2
Original line number Diff line number Diff line
@@ -636,8 +636,8 @@ typedef enum 
#define SBA_DIRAC_NRG_SMOOTH_LONG               10

#define SBA_DIRAC_NRG_SMOOTH_SHORT              3



#define SBA_DIRAC_NRG_SMOOTH_SHORT_BY_LONG_FX  ((Word16)0x2666)

#define SBA_DIRAC_NRG_SMOOTH_LONG_BY_LONG_SHORT_FX  ((Word32)0x0000B6D8)

#define SBA_DIRAC_NRG_SMOOTH_SHORT_BY_LONG_FX  ((Word16)0x2667)

#define SBA_DIRAC_NRG_SMOOTH_LONG_BY_LONG_SHORT_FX  ((Word32)0x5B6DB6DB)



/* PLC for DFT Stereo residual */

#define STEREO_DFT_RES_N_PEAKS_MAX              15                          /*Maximum number of peaks within residual signal in each frame (res_cod_band_max == 6 in 48kHz)*/

lib_com/ivas_prot_fx.h

+3 −2
Original line number Diff line number Diff line
@@ -475,7 +475,8 @@ void filter_with_allpass_fx( 
    const Word32 *sig,  /* i  : allpass input signal                */

    Word32 *out,        /* o  : filtered output                     */

    const int16_t len,  /* i  : length of input                     */

    basic_allpass_t *ap /* i/o: basic allpass structure             */

    basic_allpass_t *ap, /* i/o: basic allpass structure             */

    Word16 q_shift

);



Word32 stereo_dft_dmx_swb_nrg_fx(
@@ -1524,7 +1525,7 @@ void ivas_hq_pred_hb_bws_fx( 
);



void synchro_synthesis_fixed_clean(

  const Word16 ivas_total_brate,     /* i  : IVAS total bitrate                  */

  const Word32 ivas_total_brate,     /* i  : IVAS total bitrate                  */

  CPE_DEC_HANDLE hCPE,                /* i/o: CPE decoder structure               */

  Word32 *output_fx[CPE_CHANNELS],        /* i/o: output synthesis signal             */

  const Word16 output_frame,         /* i  : Number of samples                   */

lib_com/lerp.c

+105 −7
Original line number Diff line number Diff line
@@ -383,6 +383,102 @@ static void lerp_proc(Word16 *f, Word16 *f_out, Word16 bufferNewSize, Word16 buf 


}





static void lerp_proc32(Word32 *f, Word32 *f_out, Word16 bufferNewSize, Word16 bufferOldSize)

{



  Word16 i, idx, n;

  Word16 diff;

  Word32 pos, shift;

  Word32 buf[2 * L_FRAME_MAX];

  Word32 *ptr;



  ptr = f_out;

  test();

  test();

  test();

  IF (((f <= f_out) && (f + bufferOldSize >= f_out)) || ((f_out <= f) && (f_out + bufferNewSize >= f)))

  {

    ptr = buf;

    move16();

  }



  IF(EQ_16(bufferNewSize, bufferOldSize))

  {

    Copy32(f, f_out, bufferNewSize);

    return;

  }



  shift = L_shl(L_deposit_l(div_s(bufferOldSize, shl(bufferNewSize, 4))), 4 - shift_e + 16);



  pos = L_sub(L_shr(shift, 1), 32768l/*1.0f Q15*/);



  /* Adjust interpolation shift to avoid accessing beyond end of input buffer. */

  if (LT_32(shift, 19661l/*0.3f Q16*/))

  {

    pos = L_sub(pos, 8520l/*0.13f Q16*/);

  }



  assert(pos_e == shift_e);



  /* first point of interpolation */

  IF(pos < 0)

  {



    diff = shr(extract_l(pos), 1);

    /*buf[0]=f[0]+pos*(f[1]-f[0]);*/

    move16();

    *ptr++ = L_add_sat(f[0], Mpy_32_16_1(L_sub(f[1], f[0]), diff));

  }

  ELSE

  {



      idx = extract_h(pos);

      diff = lshr(extract_l(pos), 1);

      move16();

      *ptr++ = L_add_sat(f[idx], Mpy_32_16_1(L_sub(f[idx + 1], f[idx]), diff));

  }



  pos = L_add(pos, shift);

  idx = s_max(0, extract_h(pos));



  n = sub(bufferNewSize, 1);

  FOR(i = 1; i < n; i++)

  {

    diff = lshr(extract_l(pos), 1);

    IF (LT_32(pos , 0))

    {

      diff = sub(16384/*0.5f Q15*/, diff);

    }

    move16();

    *ptr++ = L_add_sat(f[idx], Mpy_32_16_1(L_sub(f[idx + 1], f[idx]), diff));

    pos = L_add(pos, shift);

    idx = extract_h(pos);

  }



  /* last point */



  IF (GT_32(pos, L_deposit_h(sub(bufferOldSize, 1))))

  {

    idx = sub(bufferOldSize, 2);

  }

  assert(idx <= 2 * L_FRAME_MAX);



  /* diff = t - point;*/

  diff = lshr(extract_l(L_shr(L_sub(pos, L_deposit_h(idx)), 1)), 1);



  move16();

  *ptr++ = L_add_sat(f[idx], L_shl_sat(Mpy_32_16_1(L_sub(f[idx + 1], f[idx]), diff), 1));

  test();

  test();

  test();

  IF(((f <= f_out) && (f + bufferOldSize >= f_out)) || ((f_out <= f) && (f_out + bufferNewSize >= f)))

  {

    Copy32(buf, f_out, bufferNewSize);

  }



}



#ifdef IVAS_FLOAT_FIXED



static void L_lerp_proc_fx( const Word32 *f_fx, Word32 *f_out_fx, const Word16 bufferNewSize, const Word16 bufferOldSize );
@@ -397,10 +493,12 @@ void L_lerp_fx( Word32 *f, Word32 *f_out, Word16 bufferNewSize, Word16 bufferOld 
{

    Word16 tmpNewSize;

    Word16 guard_bits = s_max(find_guarded_bits_fx(bufferNewSize / bufferOldSize), find_guarded_bits_fx(bufferOldSize / bufferNewSize)) + 1;

    q -= guard_bits;



    IF (getScaleFactor32(f, bufferOldSize) < guard_bits)

    {

        *q -= guard_bits;

        FOR(Word16 ind = 0; ind < bufferNewSize; ind++) f[ind] = L_shr(f[ind], guard_bits);

        FOR(Word16 ind = 0; ind < bufferNewSize; ind++) f_out[ind] = L_shr(f_out[ind], guard_bits);

    }



    IF ( 128 * bufferNewSize > bufferOldSize * 507 )

    {
@@ -457,7 +555,7 @@ void L_lerp_fx_q11( Word32 *f, Word32 *f_out, Word16 bufferNewSize, Word16 buffe 
                tmpNewSize = bufferNewSize;

            }



            L_lerp_proc_fx( f, f_out, tmpNewSize, bufferOldSize );

            lerp_proc32( f, f_out, tmpNewSize, bufferOldSize );



            f = f_out;

            bufferOldSize = tmpNewSize;
@@ -474,7 +572,7 @@ void L_lerp_fx_q11( Word32 *f, Word32 *f_out, Word16 bufferNewSize, Word16 buffe 
                tmpNewSize = bufferNewSize;

            }



            L_lerp_proc_fx( f, f_out, tmpNewSize, bufferOldSize );

            lerp_proc32( f, f_out, tmpNewSize, bufferOldSize );



            f = f_out;

            bufferOldSize = tmpNewSize;
@@ -483,7 +581,7 @@ void L_lerp_fx_q11( Word32 *f, Word32 *f_out, Word16 bufferNewSize, Word16 buffe 
    }

    ELSE

    {

        L_lerp_proc_fx( f, f_out, bufferNewSize, bufferOldSize );

        lerp_proc32(f, f_out, bufferNewSize, bufferOldSize);

    }



    return;

lib_com/prot.h

+8 −0
Original line number Diff line number Diff line
@@ -500,6 +500,14 @@ void delay_signal_fx( 
    Word32 mem[],        /* i/o: synchronization memory                  */

    const int16_t delay /* i  : delay in samples                        */

);

void delay_signal_q_adj_fx(

    Word32 x[],          /* i/o: signal to be delayed                    */

    const int16_t len,  /* i  : length of the input signal              */

    Word32 mem[],        /* i/o: synchronization memory                  */

    const int16_t delay, /* i  : delay in samples                        */

    const Word16 q_x,

    const Word16 q_mem

);

#endif















ivas_error push_indice(

































lib_com/prot_fx2.h



+1
−1






























Original line number
Diff line number
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@@ -2400,7 +2400,7 @@ void calc_normal_length_fx(













  Word16 Q_syn















);





























Word32 ivas_calc_tilt_bwe_fx(            /* o  : Tilt in Q24       */













Word16 ivas_calc_tilt_bwe_fx(            /* o  : Tilt in Q24       */















  const Word32 *sp,        /* i  : i   signal      */















  const Word16 exp_sp,         /* i  : Exp of inp signal */















  const Word16 N            /* i  : signal length     */