Commit 793395a8 authored by Fabian Bauer's avatar Fabian Bauer
Browse files

arith_coder_fx.c : changed void tcx_arith_scale_envelope

parent de46490b

lib_com/arith_coder_fx.c

+4 −0
Original line number Diff line number Diff line
@@ -262,7 +262,11 @@ void tcx_arith_scale_envelope( 
    b_e = add( b_e, mean_e );



    /* scale = (-b + (float)sqrt(b*b - 4.0f*a*0.035f)) / (2.0f * a); */

#ifdef ISSUE_1836_replace_overflow_libcom

    tmp = round_fx_sat( BASOP_Util_Add_Mant32Exp( L_mult( b, b ), shl( b_e, 1 ), Mpy_32_16_1( a, -4588 /*-4.0f*0.035f Q15*/ ), a_e, &tmp2 ));

#else

    tmp = round_fx_o( BASOP_Util_Add_Mant32Exp( L_mult( b, b ), shl( b_e, 1 ), Mpy_32_16_1( a, -4588 /*-4.0f*0.035f Q15*/ ), a_e, &tmp2 ), &Overflow );

#endif



    IF( tmp <= 0 )

    {