Commit 33ba909e authored by vaclav's avatar vaclav
Browse files

add comment about the thresholds being different between float and BASOP

parent 94492638

lib_com/swb_tbe_com_fx.c

+2 −2
Original line number Diff line number Diff line
@@ -6128,7 +6128,7 @@ void non_linearity_ivas_fx( 
    /* sc_factor = 32; */                                                      /* Here we divide prev_scale, so 32 == 2 << (15-10)  1024.0 corresponds to 10 bits and 32 to 5 bits  */

    /* if ( element_mode > EVS_MONO ) */                                       /* element mode is not needed because the function is duplicated for IVAS */

    sc_factor = shl_sat( 1, sub( 16, max( 13 - norm_s( add( j, 1 ) ), 0 ) ) ); /* Adapt the scaling factor allowed depending of max position  */

    sc_factor = s_max( s_min( sc_factor, 16384 ), 2 * 32 );

    sc_factor = s_max( s_min( sc_factor, 16384 ), 2 * 32 );                    /* note: The thresholding is purposely different between float and BASOP implementations. */



    test();

    IF( prev_scale <= 0 || GT_32( Mult_32_16( prev_scale, sc_factor ) /*Q30 -> Q31*/, scale /*Q31*/ ) )
@@ -6224,7 +6224,7 @@ void non_linearity_ivas_fx( 
    /* sc_factor = 32; */                                                      /* Here we divide prev_scale, so 32 == 2 << (15-10)  1024.0 corresponds to 10 bits and 32 to 5 bits  */

    /* if ( element_mode > EVS_MONO ) */                                       /* element mode is not needed because the function is duplicated for IVAS */

    sc_factor = shl_sat( 1, sub( 16, max( 12 - norm_s( add( j, 1 ) ), 0 ) ) ); /* Adapt the scaling factor allowed depending of max position  */

    sc_factor = s_max( s_min( sc_factor, 16384 ), 2 * 32 );

    sc_factor = s_max( s_min( sc_factor, 16384 ), 2 * 32 );                    /* note: The thresholding is purposely different between float and BASOP implementations. */



    test();

    IF( prev_scale <= 0 || GT_32( Mult_32_16( prev_scale, sc_factor ) /*Q30 -> Q31*/, scale /*Q31*/ ) )