Commit 0f9b0399 authored by Sandesh Venkatesh's avatar Sandesh Venkatesh
Browse files

Fix for 3GPP issue 1288: Missing scaling in NB post-filter 

Link #1288
parent 92cf2e11

lib_com/prot_fx.h

+1 −1
Original line number Diff line number Diff line
@@ -6631,7 +6631,7 @@ void nb_post_filt_fx( 
    const Word16 tmp_noise,  /* i  : noise energy                       Q0   */

    Word16 *Synth,           /* i  : 12k8 synthesis                    Qsyn  */

    const Word16 *Aq,        /* i  : LP filter coefficient             Q12   */

    const Word16 *Pitch_buf, /* i  : Fractionnal subframe pitch buffer Q6    */

    const Word16 *Pitch_buf, /* i  : Fractionnal subframe pitch buffer Q0    */

    const Word16 coder_type, /* i  : coder_type                              */

    const Word16 BER_detect, /* i  : BER detect flag                         */

    const Word16 disable_hpf /* i  : flag to diabled HPF                     */

lib_dec/acelp_core_dec_ivas_fx.c

+3 −3
Original line number Diff line number Diff line
@@ -1235,7 +1235,7 @@ ivas_error acelp_core_dec_ivas_fx( 
             *------------------------------------------------------------*/





            Copy_Scale_sig( pitch_buf_fx, pitch_buf_tmp, NB_SUBFR16k, -Q6 ); // Q0

            Copy_Scale_sig( pitch_buf_fx, pitch_buf_tmp, st->nb_subfr, -Q6 ); // Q0

            FEC_scale_syn_ivas_fx( st->L_frame, &update_flg, st->clas_dec, st->last_good, psyn_fx, pitch_buf_tmp, st->enr_old_fx, enr_q_fx, st->coder_type, LSF_Q_prediction,

                                   &st->scaling_flag, &st->lp_ener_FEC_av, &st->lp_ener_FEC_max, st->bfi, st->total_brate, st->prev_bfi, st->last_core_brate,

                                   exc_fx, exc2_fx, Aq_fx, &st->old_enr_LP, mem_tmp_fx, st->mem_syn2_fx, st->Q_exc, st->Q_syn, avoid_lpc_burst_on_recovery, 0 );
@@ -1393,7 +1393,7 @@ ivas_error acelp_core_dec_ivas_fx( 
        test();

        IF( EQ_32( st->total_brate, ACELP_7k20 ) || EQ_32( st->total_brate, ACELP_8k00 ) )

        {

            Copy_Scale_sig( pitch_buf_fx, pitch_buf_tmp, NB_SUBFR16k, -Q6 ); // Q0

            Copy_Scale_sig( pitch_buf_fx, pitch_buf_tmp, st->nb_subfr, -Q6 ); // Q0



            FEC_scale_syn_ivas_fx( st->L_frame, &update_flg, st->clas_dec, st->last_good, psyn_fx, pitch_buf_tmp, st->enr_old_fx, enr_q_fx, st->coder_type, LSF_Q_prediction,

                                   &st->scaling_flag, &st->lp_ener_FEC_av, &st->lp_ener_FEC_max, st->bfi, st->total_brate, st->prev_bfi, st->last_core_brate,
@@ -1430,7 +1430,7 @@ ivas_error acelp_core_dec_ivas_fx( 
    test();

    IF( st->last_bwidth == NB && st->hPFstat != NULL )

    {

        Copy( pitch_buf_fx, pitch_buf_tmp, NB_SUBFR16k );

        Copy_Scale_sig( pitch_buf_fx, pitch_buf_tmp, st->nb_subfr, -Q6 ); // Q0

        IF( st->bwidth == NB )

        {

            st->hPFstat->on = 1;

lib_dec/dec_post_fx.c

+4 −4
Original line number Diff line number Diff line
@@ -86,7 +86,7 @@ void nb_post_filt_fx( 
    const Word16 tmp_noise,  /* i  : noise energy                       Q0   */

    Word16 *Synth,           /* i  : 12k8 synthesis                    Qsyn  */

    const Word16 *Aq,        /* i  : LP filter coefficient             Q12   */

    const Word16 *Pitch_buf, /* i  : Fractionnal subframe pitch buffer Q6    */

    const Word16 *Pitch_buf, /* i  : Fractionnal subframe pitch buffer Q0    */

    const Word16 coder_type, /* i  : coder_type                              */

    const Word16 BER_detect, /* i  : BER detect flag                         */

    const Word16 disable_hpf /* i  : flag to diabled HPF                     */
@@ -142,7 +142,7 @@ void nb_post_filt_fx( 
    move16();

    FOR( i = 0; i < L_frame; i += L_SUBFR )

    {

        T0_first = Pitch_buf[j]; // Q6

        T0_first = Pitch_buf[j]; // Q0

        move16();

        Dec_postfilt_fx( hPFstat, T0_first, &Pf_in[i], p_Aq, &Synth[i], Post_G1, Post_G2, Gain_factor, disable_hpf );
@@ -179,7 +179,7 @@ void nb_post_filt_fx( 
 *----------------------------------------------------------------------------*/

static void Dec_postfilt_fx(

    PFSTAT_HANDLE hPFstat,    /* i : core decoder parameters */

    const Word16 t0,          /* i  : pitch delay given by coder Q6                   */

    const Word16 t0,          /* i  : pitch delay given by coder Q0                   */

    const Word16 *signal_ptr, /* i  : input signal (pointer to current subframe Q0    */

    const Word16 *coeff,      /* i  : LPC coefficients for current subframe Q12        */

    Word16 *sig_out,          /* o  : postfiltered output                          Q15*/
@@ -749,7 +749,7 @@ static void modify_pst_param_fx( 
 * Perform harmonic postfilter

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

static void pst_ltp_fx(

    Word16 t0,            /* i  : pitch delay given by coder Q6       */

    Word16 t0,            /* i  : pitch delay given by coder Q0       */

    Word16 *ptr_sig_in,   /* i  : postfilter i  filter (residu2) Qx   */

    Word16 *ptr_sig_pst0, /* o  : harmonic postfilter o Qx           */

    Word16 gain_factor    /* i  : Gain Factor (Q15)                */