Commit 4725d6c2 authored by Adam Mills's avatar Adam Mills
Browse files

Removing the unused 2nd order filter code

parent e7ec11d6

lib_com/ivas_cnst.h

+0 −1
Original line number Diff line number Diff line
@@ -1424,7 +1424,6 @@ typedef enum 
typedef enum

{

    IVAS_FILTER_ORDER_1 = 1,

    IVAS_FILTER_ORDER_2 = 2,

    IVAS_FILTER_ORDER_4 = 4,

} ivas_filter_order;

lib_com/ivas_filters.c

+1 −2
Original line number Diff line number Diff line
@@ -62,7 +62,7 @@ void ivas_filters_init( 
    int16_t i;

    filter_state->order = order;



    if ( order == IVAS_FILTER_ORDER_2 || order == IVAS_FILTER_ORDER_1 )

    if ( order == IVAS_FILTER_ORDER_1 )

    {

        filter_state->filt_len = order + 1;
@@ -116,7 +116,6 @@ void ivas_filter_process( 
    switch ( filter_state->order )

    {

        case IVAS_FILTER_ORDER_1:

        case IVAS_FILTER_ORDER_2:

            ivas_iir_2_filter( filter_state, pIn_Out, length, IVAS_FILTER_STAGE_0 );

            break;

        case IVAS_FILTER_ORDER_4:

lib_com/ivas_lfe_com.c

+0 −16
Original line number Diff line number Diff line
@@ -60,22 +60,6 @@ void ivas_lfe_lpf_select_filt_coeff( 
{

    switch ( order )

    {

        case IVAS_FILTER_ORDER_2:

            switch ( sampling_rate )

            {

                case 16000:

                    *ppFilt_coeff = ivas_lpf_2_butter_16k;

                    break;

                case 32000:

                    *ppFilt_coeff = ivas_lpf_2_butter_32k;

                    break;

                case 48000:

                    *ppFilt_coeff = ivas_lpf_2_butter_48k;

                    break;

                default:

                    break;

            }

            break;

        case IVAS_FILTER_ORDER_4:

            switch ( sampling_rate )

            {

lib_com/ivas_rom_com.c

+0 −5
Original line number Diff line number Diff line
@@ -3079,11 +3079,6 @@ const float ivas_lpf_4_butter_48k_sos[IVAS_BIQUAD_FILT_LEN << 2] = 
    1.00000000471366f, 1.f , -1.98677297369091f,    0.987060670205863f 

};













const float ivas_lpf_2_butter_16k[IVAS_BIQUAD_FILT_LEN << 1] = 













{













    0.000628720643081143f,    0.00125744128616229f, 0.000628720643081143f, 1.f, -1.92783286977036f,    0.930347752342683f 













};



























const float ivas_lpf_2_butter_32k[IVAS_BIQUAD_FILT_LEN << 1] = 















{















    0.000159990787823749f,    0.000319981575647499f,    0.000159990787823749f, 1.f, -1.96390539174033f,    0.964545354891623f 

































lib_com/ivas_rom_com.h



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@@ -348,7 +348,6 @@ extern const int16_t Param_ISM_band_grouping[MAX_PARAM_ISM_NBANDS + 1];













extern const float ivas_lpf_4_butter_16k_sos[IVAS_BIQUAD_FILT_LEN << 2];















extern const float ivas_lpf_4_butter_32k_sos[IVAS_BIQUAD_FILT_LEN << 2];















extern const float ivas_lpf_4_butter_48k_sos[IVAS_BIQUAD_FILT_LEN << 2];













extern const float ivas_lpf_2_butter_16k[IVAS_BIQUAD_FILT_LEN << 1];















extern const float ivas_lpf_2_butter_32k[IVAS_BIQUAD_FILT_LEN << 1];















extern const float ivas_lpf_2_butter_48k[IVAS_BIQUAD_FILT_LEN << 1];