Commit 823cb4db authored by fotopoulou's avatar fotopoulou
Browse files

Improvement for DFT Stereo for cases with large ITDs under HYBRID_ITD_MAX

parent 4f09f8bc

lib_com/ivas_prot.h

+4 −0
Original line number Diff line number Diff line
@@ -1401,6 +1401,10 @@ int16_t read_BS_adapt_GR_sg( 
void stereo_dft_hybrid_ITD_flag(

    STEREO_DFT_CONFIG_DATA_HANDLE hConfig,                      /* o  : DFT stereo configuration                */

    const int32_t input_Fs                                      /* i  : CPE element sampling rate               */

#ifdef HYBRID_ITD_MAX

    ,

    const int16_t hybrid_itd_max                                /* i  : flag for hybrid ITD for very large ITDs */

#endif

);



void stereo_dft_enc_compute_itd(

lib_com/options.h

+2 −0
Original line number Diff line number Diff line
@@ -211,6 +211,8 @@ 
//#define HODIRAC_READ_PARAMS

#endif



#define HYBRID_ITD_MAX                                 /* FhG: Improvement for DFT-stereo for cases with large ITDs */



 /* ################## End DEVELOPMENT switches ######################### */



/* clang-format on */

lib_enc/ivas_cpe_enc.c

+6 −1
Original line number Diff line number Diff line
@@ -333,7 +333,12 @@ ivas_error ivas_cpe_enc( 


    if ( hCPE->element_mode == IVAS_CPE_DFT )

    {

        stereo_dft_hybrid_ITD_flag( hCPE->hStereoDft->hConfig, input_Fs );

        stereo_dft_hybrid_ITD_flag( hCPE->hStereoDft->hConfig, input_Fs

#ifdef HYBRID_ITD_MAX

                                    ,

                                    hCPE->hStereoDft->hItd->hybrid_itd_max

#endif

        );



        /* Time Domain ITD compensation using extrapolation */

#ifdef DEBUG_MODE_DFT

lib_enc/ivas_stat_enc.h

+4 −0
Original line number Diff line number Diff line
@@ -81,6 +81,10 @@ typedef struct stereo_itd_data_struct 
    int16_t prev_itd1;

    int16_t prev_itd2;



#ifdef HYBRID_ITD_MAX

    /*flag for hybrid ITD for very large ITDs*/

    int16_t hybrid_itd_max;

#endif

} ITD_DATA, *ITD_DATA_HANDLE;



typedef struct dft_ana_struct

lib_enc/ivas_stereo_classifier.c

+7 −1
Original line number Diff line number Diff line
@@ -998,7 +998,13 @@ void xtalk_classifier_dft( 
        printf( "\nSwitch DFT-stereo -> TD-LR on frame %d\n", frame );

#endif

    }

    else if ( hCPE->element_brate >= IVAS_16k4 && hStereoClassif->xtalk_decision == 0 && abs( itd ) > STEREO_DFT_ITD_MAX && ( hCPE->hCoreCoder[0]->lp_speech - hCPE->hCoreCoder[0]->lp_noise ) > 25.0f )

    else if (

#ifdef HYBRID_ITD_MAX

        hCPE->element_brate > IVAS_16k4

#else

        hCPE->element_brate >= IVAS_16k4

#endif

        && hStereoClassif->xtalk_decision == 0 && abs( itd ) > STEREO_DFT_ITD_MAX && ( hCPE->hCoreCoder[0]->lp_speech - hCPE->hCoreCoder[0]->lp_noise ) > 25.0f )

    {

        hStereoClassif->xtalk_decision = 1;

    }