Commit 604eace3 authored by Sandesh Venkatesh's avatar Sandesh Venkatesh
Browse files

Fix for 3GPP issue 1385: Decoder crash for Stereo at 32 kbps FER in ivas_cpe_dec_fx() 

Link #1385
parent 503045da

lib_dec/ivas_cpe_dec_fx.c

+4 −4
Original line number Diff line number Diff line
@@ -729,8 +729,8 @@ ivas_error ivas_cpe_dec_fx( 
            hCPE->hStereoDft->q_res_cod_mem_fx = hCPE->hStereoDft->q_dft;

            move16();

            stereo_dft_unify_dmx_fx( hCPE->hStereoDft, sts[0], DFT_fx, hCPE->input_mem_fx[1], hCPE->hStereoCng->prev_sid_nodata );

            scale_sig32( hCPE->hStereoDft->res_cod_mem_fx, STEREO_DFT_OVL_8k, sub( Q16, hCPE->hStereoDft->q_res_cod_mem_fx ) ); // Q16

            hCPE->hStereoDft->q_res_cod_mem_fx = Q16;

            scale_sig32( hCPE->hStereoDft->res_cod_mem_fx, STEREO_DFT_OVL_8k, sub( Q15, hCPE->hStereoDft->q_res_cod_mem_fx ) ); // Q15

            hCPE->hStereoDft->q_res_cod_mem_fx = Q15;

            move16();

        }

        ELSE
@@ -754,8 +754,8 @@ ivas_error ivas_cpe_dec_fx( 
                move16();

            }

            stereo_dft_dec_fx( hCPE->hStereoDft, sts[0], DFT_fx, hCPE->input_mem_fx[1], hCPE->hStereoCng, 0, 0, 0, 0, 0, 0, MAX_PARAM_SPATIAL_SUBFRAMES );

            scale_sig32( hCPE->hStereoDft->res_cod_mem_fx, STEREO_DFT_OVL_8k, sub( Q16, hCPE->hStereoDft->q_res_cod_mem_fx ) ); // Q16

            hCPE->hStereoDft->q_res_cod_mem_fx = Q16;

            scale_sig32( hCPE->hStereoDft->res_cod_mem_fx, STEREO_DFT_OVL_8k, sub( Q15, hCPE->hStereoDft->q_res_cod_mem_fx ) ); // Q15

            hCPE->hStereoDft->q_res_cod_mem_fx = Q15;

            move16();

        }

lib_dec/ivas_stereo_dft_dec_fx.c

+8 −8
Original line number Diff line number Diff line
@@ -146,7 +146,7 @@ void stereo_dft_dec_reset_fx( 
    set16_fx( hStereoDft->res_cod_mode, hStereoDft->hConfig->res_cod_mode, STEREO_DFT_DEC_DFT_NB );

    hStereoDft->res_cod_band_max = dft_band_res_cod[hStereoDft->hConfig->band_res][hStereoDft->hConfig->res_cod_mode];

    set32_fx( hStereoDft->res_cod_mem_fx, 0, STEREO_DFT_OVL_8k );

    hStereoDft->q_res_cod_mem_fx = Q16;

    hStereoDft->q_res_cod_mem_fx = Q15;

    move16();



    hStereoDft->res_pred_band_min = s_max( STEREO_DFT_RES_PRED_BAND_MIN, hStereoDft->res_cod_band_max );
@@ -1357,7 +1357,7 @@ void stereo_dft_dec_res_fx( 
    IF( EQ_16( hCPE->hStereoDft->res_cod_mode[STEREO_DFT_OFFSET - 1], STEREO_DFT_RES_COD_OFF ) )

    {

        set32_fx( hCPE->hStereoDft->res_cod_mem_fx, 0, STEREO_DFT_OVL_8k );

        hCPE->hStereoDft->q_res_cod_mem_fx = Q16;

        hCPE->hStereoDft->q_res_cod_mem_fx = Q15;

        move16();

        set32_fx( hCPE->input_mem_fx[1], 0, NS2SA( 8000, STEREO_DFT32MS_OVL_NS ) );

        set16_fx( hCPE->hStereoDft->hBpf->pst_old_syn_fx, 0, STEREO_DFT_NBPSF_PIT_MAX_8k );
@@ -1370,7 +1370,7 @@ void stereo_dft_dec_res_fx( 


    scale_sig( win, L_FRAME8k + STEREO_DFT_OVL_8k, -1 );



    Word16 q_shift = sub( hCPE->hStereoDft->q_res_cod_mem_fx, Q16 );

    Word16 q_shift = sub( hCPE->hStereoDft->q_res_cod_mem_fx, Q15 );

    IF( !prev_bfi )

    {

        /*OLA*/
@@ -1378,9 +1378,9 @@ void stereo_dft_dec_res_fx( 


        FOR( i = 0; i < STEREO_DFT_OVL_8k; i++ )

        {

            win[i] = extract_h( L_add( L_shr( hCPE->hStereoDft->res_cod_mem_fx[i], 1 ), L_shl( L_mult( win[i], hCPE->hStereoDft->win_8k_fx[i] ), q_shift ) ) ); /* q_res_cod_mem_fx -17 (q_shift -1)*/

            win[i] = extract_h( L_add( hCPE->hStereoDft->res_cod_mem_fx[i], L_shl( L_mult( win[i], hCPE->hStereoDft->win_8k_fx[i] ), q_shift ) ) ); /* q_res_cod_mem_fx -17 (q_shift -1)*/

            move16();

            hCPE->hStereoDft->res_cod_mem_fx[i] = L_shl( L_mult( win[L_FRAME8k + i], hCPE->hStereoDft->win_8k_fx[STEREO_DFT_OVL_8k - 1 - i] ), 1 ); /* -1 +15 +1 +1 */

            hCPE->hStereoDft->res_cod_mem_fx[i] = L_mult( win[L_FRAME8k + i], hCPE->hStereoDft->win_8k_fx[STEREO_DFT_OVL_8k - 1 - i] ); /* -1 +15 +1 */

            move32();

        }
@@ -1396,11 +1396,11 @@ void stereo_dft_dec_res_fx( 
        move16();

        FOR( i = 0; i < STEREO_DFT_OVL_8k; i++ )

        {

            win[i] = extract_h( Madd_32_16( Mpy_32_16_1( L_shr( hCPE->hStereoDft->res_cod_mem_fx[i], 1 ), sub( MAX_16, mult( fac, fac ) ) ),

            win[i] = extract_h( Madd_32_16( Mpy_32_16_1( hCPE->hStereoDft->res_cod_mem_fx[i], sub( MAX_16, mult( fac, fac ) ) ),

                                            L_shl( L_mult( hCPE->hStereoDft->win_8k_fx[i], win[i] ), q_shift ),

                                            sub( MAX_16, mult( sub( MAX_16, fac ), sub( MAX_16, fac ) ) ) ) ); /* Q(q_shift -1) */

            move16();

            hCPE->hStereoDft->res_cod_mem_fx[i] = L_shl( L_mult( win[L_FRAME8k + i], hCPE->hStereoDft->win_8k_fx[STEREO_DFT_OVL_8k - 1 - i] ), 1 ); /* Q16 */

            hCPE->hStereoDft->res_cod_mem_fx[i] = L_mult( win[L_FRAME8k + i], hCPE->hStereoDft->win_8k_fx[STEREO_DFT_OVL_8k - 1 - i] ); /* Q15 */

            move32();

            fac = add( fac, step );

        }
@@ -1411,7 +1411,7 @@ void stereo_dft_dec_res_fx( 
        v_shr_16( &win[STEREO_DFT_OVL_8k], negate( q_shift ), &win[STEREO_DFT_OVL_8k], L_FRAME8k );

    }



    hCPE->hStereoDft->q_res_cod_mem_fx = Q16;

    hCPE->hStereoDft->q_res_cod_mem_fx = Q15;



    Copy( win, out_16, L_FRAME8k ); /* Q(q_shift -1 ) */

lib_dec/ivas_stereo_switching_dec_fx.c

+1 −1
Original line number Diff line number Diff line
@@ -1841,7 +1841,7 @@ void stereo_switching_dec( 


        /* reset residual coding / ESF (secondary channel) */

        set32_fx( hCPE->hStereoDft->res_cod_mem_fx, 0, STEREO_DFT_OVL_8k );

        hCPE->hStereoDft->q_res_cod_mem_fx = Q16;

        hCPE->hStereoDft->q_res_cod_mem_fx = Q15;

        move16();



        set32_fx( hCPE->input_mem_fx[1], 0, NS2SA_FX2( sts[0]->output_Fs, STEREO_DFT32MS_OVL_NS ) );