Commit 77797a59 authored by norvell's avatar norvell Committed by Manuel Jander
Browse files

Add FIX_1461_CNG_BW_SWITCHING to address BW switching in Stereo CNG

parent a4056538

lib_enc/ivas_cpe_enc_fx.c

+9 −0
Original line number Diff line number Diff line
@@ -130,6 +130,9 @@ ivas_error ivas_cpe_enc_fx( 
    Word16 old_wsp_fx[CPE_CHANNELS][L_WSP];

    Word16 e_old_wsp[CPE_CHANNELS], q_old_wsp;

    Word16 Q_new[CPE_CHANNELS] = { 0 };

#ifdef FIX_1461_CNG_BW_SWITCHING

    Word16 NFFT_inner;

#endif

    move16();

    move16();

    Word16 q_com, shift, q_min, gb;
@@ -1182,6 +1185,12 @@ ivas_error ivas_cpe_enc_fx( 
            IF( EQ_32( sts[0]->core_brate, SID_2k40 ) || sts[0]->core_brate == FRAME_NO_DATA )

            {

                /* Reconfigure DFT Stereo for inactive frames */

#ifdef FIX_1461_CNG_BW_SWITCHING

                /* -- nbands may need to be updated here in case the bandwidth was changed due to inactive frames */

                NFFT_inner = shl( inner_frame_tbl[sts[0]->bwidth], 1 );

                hCPE->hStereoDft->nbands = stereo_dft_band_config_fx( hCPE->hStereoDft->band_limits, hCPE->hStereoDft->hConfig->band_res, NFFT_inner, ENC );

                move16();

#endif

                IF( EQ_32( sts[0]->core_brate, SID_2k40 ) )

                {

                    stereo_dft_config_fx( hConfigDft, IVAS_SID_5k2, &sts[0]->bits_frame_nominal, &sts[1]->bits_frame_nominal );

lib_enc/ivas_stereo_dft_enc_fx.c

+11 −0
Original line number Diff line number Diff line
@@ -3853,6 +3853,17 @@ static void stereo_dft_enc_compute_prm_fx( 
    hStereoDft->nrg_past_pos = ( pos + 1 ) % STEREO_DFT_NRG_PAST_LEN;

    move16();



#ifdef FIX_1461_CNG_BW_SWITCHING

    /* Replicate last band for remaining bands in case the bandwidth is higher after SID/NODATA is considered */

    FOR( i = hStereoDft->nbands; i < STEREO_DFT_BAND_MAX; i++ )

    {

        pPredGain[i] = pPredGain[i - 1];

        move32();

        pSideGain[i] = pSideGain[i - 1];

        move32();

    }

#endif





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

     * Compute IPDs