Commit 1972d64f authored by Sandesh Venkatesh's avatar Sandesh Venkatesh
Browse files

Porting fix: Incorrect TNS grouping and TNS5 interleaving in Stereo MDCT core... 

Porting fix: Incorrect TNS grouping and TNS5 interleaving in Stereo MDCT core when output_fs != input_fs

ivas-codec-pc/ivas-codec#1348
parent 006def7e

lib_com/options.h

+1 −1
Original line number Diff line number Diff line
@@ -144,7 +144,7 @@ 
/* ################### Start FIXES switches ########################### */



#define NONBE_FIX_864_JBM_RENDER_FRAMESIZE                    /* FhG: issue #864: fix different behaviour of JBM TSM with different render frame sizes */



#define NONBE_FIX_TCX5_INTERLEAVING_FOR_FS_IN_UNEQUAL_FS_OUT  /* FhG: apply correct TCX5 grouping/interleaving when input_fs != output_fs */



/* #################### End FIXES switches ############################ */

lib_dec/dec_tcx.c

+9 −0
Original line number Diff line number Diff line
@@ -1501,7 +1501,11 @@ void decoder_tcx_tns( 
            hTcxCfg->tcx_last_overlap_mode = hTcxCfg->tcx_curr_overlap_mode;

        }



#ifdef NONBE_FIX_TCX5_INTERLEAVING_FOR_FS_IN_UNEQUAL_FS_OUT

        if ( ( hTcxCfg->fIsTNSAllowed && fUseTns != 0 && bfi != 1 && whitenedDomain ) || ( L_spec > L_frameTCX ) )

#else

        if ( ( hTcxCfg->fIsTNSAllowed && fUseTns != 0 && bfi != 1 ) || ( L_spec > L_frameTCX ) )

#endif

        {

            L = L_spec;

        }
@@ -1543,7 +1547,12 @@ void decoder_tcx_tns( 


        if ( ( L_frame == st->L_frame >> 1 ) && st->tcxonly && isTCX5 )

        {



#ifdef NONBE_FIX_TCX5_INTERLEAVING_FOR_FS_IN_UNEQUAL_FS_OUT

            if ( st->element_mode == EVS_MONO || ( L_spec < L_frameTCX && !whitenedDomain ) ) /* todo: this is temporary to maintain EVS BE, this is a bug and should be fixed also for EVS (see issue 13) */

#else

            if ( st->element_mode == EVS_MONO || L_spec < L_frameTCX ) /* todo: this is temporary to maintain EVS BE, this is a bug and should be fixed also for EVS (see issue 13) */

#endif

            {

                tcx5TnsUngrouping( L_frameTCX >> 1, hTcxCfg->tnsConfig[0][0].iFilterBorders[0] >> 1, x, DEC );

            }