Commit 10abfd03 authored by Dominik Weckbecker's avatar Dominik Weckbecker 💬
Browse files

delete unused function ivas_osba_energy_and_ratio_est

parent 4a1c0153

lib_enc/ivas_osba_enc.c

+0 −97
Original line number Diff line number Diff line
@@ -50,8 +50,6 @@ 
 * Local function prototypes

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



static void ivas_osba_energy_and_ratio_est( OSBA_ENC_HANDLE hOSba, float data_f[][L_FRAME48k], const int16_t input_frame, const int16_t nchan_inp );



static void ivas_osba_render_ism_to_sba( float data_in_f[][L_FRAME48k], float data_out_f[][L_FRAME48k], const int16_t input_frame, const int16_t nchan_sba, const int16_t nchan_ism, ISM_METADATA_HANDLE hIsmMeta[], float prev_gains[][MAX_INPUT_CHANNELS], const float interpolator[L_FRAME48k] );



/*-------------------------------------------------------------------*
@@ -443,101 +441,6 @@ void ivas_osba_enc( 
 * Local functions

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



/* Estimate energies and ratios */

static void ivas_osba_energy_and_ratio_est(

    OSBA_ENC_HANDLE hOSba,

    float data_f[][L_FRAME48k],

    const int16_t input_frame,

    const int16_t nchan_inp )

{

    int16_t ts, i, j, k;

    int16_t num_freq_bands;

    int16_t l_ts;

    float *pcm_in[MAX_NUM_OBJECTS];

    float Chnl_RealBuffer[MAX_NUM_OBJECTS][DIRAC_NO_FB_BANDS_MAX];

    float Chnl_ImagBuffer[MAX_NUM_OBJECTS][DIRAC_NO_FB_BANDS_MAX];

    float *p_Chnl_RealBuffer[MAX_NUM_OBJECTS];

    float *p_Chnl_ImagBuffer[MAX_NUM_OBJECTS];

    int16_t block_m_idx;

    int16_t mrange[2], brange[2];

    float tftile_energy;

    float ism_ratio_sum;



    num_freq_bands = hOSba->nbands;

    l_ts = input_frame / MDFT_NO_COL_MAX;



    for ( i = 0; i < nchan_inp; i++ )

    {

        pcm_in[i] = &data_f[i][0];

        p_Chnl_RealBuffer[i] = &Chnl_RealBuffer[i][0];

        p_Chnl_ImagBuffer[i] = &Chnl_ImagBuffer[i][0];

    }



    /* do processing for all subframes */

    for ( block_m_idx = 0; block_m_idx < hOSba->nSubframes; block_m_idx++ )

    {

        mrange[0] = hOSba->block_grouping[block_m_idx];

        mrange[1] = hOSba->block_grouping[block_m_idx + 1];



        /* Reset variable */

        for ( i = 0; i < hOSba->nbands; i++ )

        {

            set_zero( hOSba->energy_ratio_ism[block_m_idx][i], nchan_inp );

        }

        set_zero( hOSba->energy_ism[block_m_idx], num_freq_bands );



        /* Compute TF transform and energy */

        for ( ts = mrange[0]; ts < mrange[1]; ts++ )

        {

            ivas_fb_mixer_get_windowed_fr( hOSba->hFbMixer, pcm_in, p_Chnl_RealBuffer, p_Chnl_ImagBuffer, l_ts, l_ts, hOSba->hFbMixer->fb_cfg->num_in_chans );



            ivas_fb_mixer_update_prior_input( hOSba->hFbMixer, pcm_in, l_ts, hOSba->hFbMixer->fb_cfg->num_in_chans );



            for ( i = 0; i < nchan_inp; i++ )

            {

                pcm_in[i] += l_ts;

            }



            for ( i = 0; i < num_freq_bands; i++ )

            {

                brange[0] = hOSba->band_grouping[i];

                brange[1] = hOSba->band_grouping[i + 1];

                for ( j = brange[0]; j < brange[1]; j++ )

                {

                    for ( k = 0; k < nchan_inp; k++ )

                    {

                        tftile_energy = Chnl_RealBuffer[k][j] * Chnl_RealBuffer[k][j] + Chnl_ImagBuffer[k][j] * Chnl_ImagBuffer[k][j];

                        hOSba->energy_ism[block_m_idx][i] += tftile_energy;

                        hOSba->energy_ratio_ism[block_m_idx][i][k] += tftile_energy;

                    }

                }

            }

        }



        /* Compute ISM energy ratios */

        for ( i = 0; i < num_freq_bands; i++ )

        {

            ism_ratio_sum = 0.0f;

            for ( j = 0; j < nchan_inp; j++ )

            {

                hOSba->energy_ratio_ism[block_m_idx][i][j] /= ( hOSba->energy_ism[block_m_idx][i] + EPSILON );

                ism_ratio_sum += hOSba->energy_ratio_ism[block_m_idx][i][j];

            }



            if ( ism_ratio_sum == 0.0f )

            {

                float temp_ism_ratio = 1.0f / ( (float) nchan_inp );

                for ( j = 0; j < nchan_inp; j++ )

                {

                    hOSba->energy_ratio_ism[block_m_idx][i][j] = temp_ism_ratio;

                }

            }

        }

    }



    return;

}



/* Render ISMs to SBA */

static void ivas_osba_render_ism_to_sba(

    float data_in_f[][L_FRAME48k],