Commit 8bdcaf00 authored by Jan Kiene's avatar Jan Kiene
Browse files

fade to complete zero after 2 seconds

parent ab3b5eb8

lib_com/ivas_cnst.h

+4 −0
Original line number Diff line number Diff line
@@ -801,6 +801,10 @@ enum fea_names 
#define SNS_NPTS                                16 /* Number of downsampled SNS parameters */



#define MDCT_ST_PLC_FADEOUT_MIN_NOISE_NRG       0.001f

#ifdef FADE_TO_ZERO_FOR_TOO_LONG_FRAMELOSS

#define MDCT_ST_PLC_FADEOUT_MAX_CONC_FRAME      1 * FRAMES_PER_SEC

#define MDCT_ST_PLC_FADEOUT_TO_ZERO_LEN         20

#endif



typedef enum {

    EQUAL_CORES,

lib_com/options.h

+1 −0
Original line number Diff line number Diff line
@@ -144,6 +144,7 @@ 


/*#define FIX_I4_OL_PITCH*/                             /* fix open-loop pitch used for EVS core switching */

/*#define MDCT_STEREO_PLC_FADE_2_BG_NOISE*/                /* IVAS-185 fix bug in TCX-PLC fadeout for MDCT-Stereo and improve fadeout by fading to background noise instead of white noise */

/*#define FADE_TO_ZERO_FOR_TOO_LONG_FRAMELOSS*/

/*#define FIX_I1_113*/                                  /* under review : MCT bit distribution optimization for SBA high bitrates*/



#define SPAR_SCALING_HARMONIZATION                      /* Issue 80: Changes to harmonize scaling in spar */

lib_dec/dec_tcx.c

+14 −0
Original line number Diff line number Diff line
@@ -202,6 +202,20 @@ void decoder_tcx_post( 
        if ( st->tcxonly )

        {

            gainCNG = hTcxDec->CngLevelBackgroundTrace_bfi / ( level_syn + 0.01f );

#ifdef FADE_TO_ZERO_FOR_TOO_LONG_FRAMELOSS



            if ( st->element_mode == IVAS_CPE_MDCT && ! isMCT )

            {

                if ( st->nbLostCmpt > MDCT_ST_PLC_FADEOUT_MAX_CONC_FRAME + MDCT_ST_PLC_FADEOUT_TO_ZERO_LEN )

                {

                    gainCNG = 0.f;

                }

                else if ( st->nbLostCmpt > MDCT_ST_PLC_FADEOUT_MAX_CONC_FRAME )

                {

                    gainCNG *= 1.f - (float) ( st->nbLostCmpt - MDCT_ST_PLC_FADEOUT_MAX_CONC_FRAME ) / MDCT_ST_PLC_FADEOUT_TO_ZERO_LEN;

                }

            }

#endif

        }

        else

        {

lib_dec/er_dec_tcx.c

+14 −0
Original line number Diff line number Diff line
@@ -452,6 +452,20 @@ void con_tcx( 
    if ( st->tcxonly )

    {

        gainCNG = hTcxDec->CngLevelBackgroundTrace_bfi / gainSynthDeemph;



#ifdef FADE_TO_ZERO_FOR_TOO_LONG_FRAMELOSS

        if ( st->element_mode == IVAS_CPE_MDCT && A_cng != NULL )

        {

            if ( st->nbLostCmpt > MDCT_ST_PLC_FADEOUT_MAX_CONC_FRAME + MDCT_ST_PLC_FADEOUT_TO_ZERO_LEN )

            {

                gainCNG = 0.f;

            }

            else if ( st->nbLostCmpt > MDCT_ST_PLC_FADEOUT_MAX_CONC_FRAME )

            {

                gainCNG *= 1.f - (float) ( st->nbLostCmpt - MDCT_ST_PLC_FADEOUT_MAX_CONC_FRAME ) / MDCT_ST_PLC_FADEOUT_TO_ZERO_LEN;

            }

        }

#endif

    }

    else

    {