Commit 45bf8fe1 authored by Sandesh Venkatesh's avatar Sandesh Venkatesh
Browse files

Precision improvements in shoebox, apa_exec float cleanup, SBA PLC high MLD fixes

parent b96b632d

lib_com/cnst.h

+1 −0
Original line number Diff line number Diff line
@@ -2749,6 +2749,7 @@ enum 
#define LG10                                  24660       /*  10*log10(2)  in Q13                 */

#define LG10_s3_0                             16440       /* 10*log10(2)/1.55 = 1.00343331 in Q14              */

#define LOG2_10                               27213      /* log base 2 of 10 in Q12 */

#define LOG2_10_Q29                           1783446566      /* log base 2 of 10 in Q12 */

#define LOG10_2_Q31                           646456993      /* inverse log base 10 of 2 in Q31 */

#define MU_MA_FX                              10923     /* original prediction factor for the AMR WB tables (Q15) */

lib_com/ivas_sns_com_fx.c

+1 −1
Original line number Diff line number Diff line
@@ -197,7 +197,7 @@ void sns_compute_scf_fx( 
    {

        Word16 e_tmp = norm_l( xs[i] );

        Word16 f_tmp = Log2_norm_lc( L_shl( xs[i], e_tmp ) );

        e_tmp = sub( sub( 30, e_tmp ), q );

        e_tmp = sub( sub( 34, e_tmp ), q );

        /* Note: Mpy_32_16 is used temporarily for this computation, It needs to be replaced with appropriate BASOP. */

        xl[i] = Mpy_32_16( e_tmp, f_tmp, 16384 ); /* Q16 */

        move32();

lib_dec/er_dec_tcx_fx.c

+2 −0
Original line number Diff line number Diff line
@@ -2143,6 +2143,8 @@ void con_tcx_ivas_fx( 
    move16();



    /* update memory for low band */

    st->Q_syn = 0;

    move16();

    Scale_sig( hTcxDec->old_syn_Overl, shr( st->L_frame, 1 ), sub( -1, Q_syn ) );

    lerp( hTcxDec->syn_OverlFB, hTcxDec->syn_Overl, shr( st->L_frame, 1 ), shr( L_frame, 1 ) );

    lerp( hTcxDec->syn_Overl_TDACFB, hTcxDec->syn_Overl_TDAC, shr( st->L_frame, 1 ), shr( L_frame, 1 ) );

lib_dec/ivas_mdct_core_dec.c

+5 −6
Original line number Diff line number Diff line
@@ -2130,6 +2130,10 @@ void ivas_mdct_core_reconstruct_fx( 
            Scale_sig( st->hTcxDec->syn_Overl, L_FRAME32k / 2, sub( st->Q_syn, q_win ) );

            Scale_sig( st->hHQ_core->old_out_LB_fx, L_FRAME32k, sub( st->Q_syn, q_win ) );

            Scale_sig( st->hHQ_core->old_out_fx, L_FRAME48k, sub( st->Q_syn, q_win ) );

            st->hHQ_core->Q_old_wtda = st->Q_syn;

            move16();

            st->hHQ_core->Q_old_wtda_LB = st->Q_syn;

            move16();

        }

        ELSE /*ACELP core for ACELP-PLC */

        {
@@ -2137,7 +2141,6 @@ void ivas_mdct_core_reconstruct_fx( 
            Scale_sig( synth_buf_fx, add( add( st->hTcxDec->old_synth_len, L_FRAME_PLUS ), M ), negate( q_syn ) );

            Scale_sig( synth_bufFB_fx, add( add( st->hTcxDec->old_synth_lenFB, L_FRAME_PLUS ), M ), negate( q_syn ) );

            q_syn = 0;

            st->Q_syn = 0;

            move16();

            move16();

            /* PLC: [TCX: TD PLC] */
@@ -2181,10 +2184,6 @@ void ivas_mdct_core_reconstruct_fx( 
            Scale_sig( st->mem_syn2_fx, M, st->Q_syn );

            Scale_sig( st->mem_syn_r, M, st->Q_syn );

        }

        st->hHQ_core->Q_old_wtda = st->Q_syn;

        move16();

        st->hHQ_core->Q_old_wtda_LB = st->Q_syn;

        move16();

        /*--------------------------------------------------------------------------------*

         * Updates

         *--------------------------------------------------------------------------------*/
@@ -2568,7 +2567,7 @@ void ivas_mdct_core_tns_ns_fx( 


                        FOR( Word16 i = 0; i < st->hTonalMDCTConc->nScaleFactors; i++ )

                        {

                            sns_int_scf_fx[i] = Madd_32_16( Mpy_32_16_1( L_shl( scf_last_m[i], add( 1, scf_last_e[i] ) ), fade_out ), L_shl( scf_bg[i], 1 ), fade_in );

                            sns_int_scf_fx[i] = Madd_32_16( Mpy_32_16_1( L_shl( scf_last_m[i], add( 1, scf_last_e[i] ) ), fade_out ), scf_bg[i], fade_in );

                            move32();

                        }

                    }

lib_dec/jbm_pcmdsp_apa.c

+19 −1187

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