Commit 2ae408f7 authored by vaillancour's avatar vaillancour
Browse files

add 1 BE complexity reduction in pred_lt4

parent a115213c

lib_com/pred_lt4_fx.c

+5 −1
Original line number Diff line number Diff line
@@ -58,9 +58,13 @@ void pred_lt4_ivas_fx( 
            FOR( i = 0; i < nb_coef; i++ )

            {

                /*s += (*x1--) * (*c1) + (*x2++) * (*c2);*/

#ifdef IMPROV_COMPLEX_BE

                s64 = W_mac_32_16( s64, ( *c1 ), *x1-- ); /* Q_exc + Q32 */

                s64 = W_mac_32_16( s64, ( *c2 ), *x2++ ); /* Q_exc + Q32 */

#else

                s64 = W_mac_32_32( s64, L_deposit_l( *x1-- ), ( *c1 ) ); /* Q_exc + Q32 */

                s64 = W_mac_32_32( s64, L_deposit_l( *x2++ ), ( *c2 ) ); /* Q_exc + Q32 */



#endif

                c1 += up_sample;

                c2 += up_sample;

            }