Commit bdd0c655 authored by Mohammadreza Naghibzadeh's avatar Mohammadreza Naghibzadeh
Browse files

Attempt to preserve olapBufferSynth exponent in core_switching_dec_fx.c

parent cbe01d6e

lib_dec/core_switching_dec_fx.c

+17 −2
Original line number Diff line number Diff line
@@ -1975,18 +1975,33 @@ ivas_error core_switching_pre_dec_fx( 
                    }

                    ELSE

                    {

#ifdef FIX_BASOP_2262_OLAP_BUFFER_SYNTH_SWITCHING

                        Word16 hdrm = Q16;

                        move16();

#endif

                        FOR( i = 0; i < shl( st->L_frame, 1 ); i++ )

                        {

#ifdef FIX_BASOP_2262_OLAP_BUFFER_SYNTH_SWITCHING

                            st->hFdCngDec->hFdCngCom->olapBufferSynth[i] = mult_r( st->hFdCngDec->hFdCngCom->olapBufferSynth[i], 26214 /* Q14*/ ); /* (Q15 - olapBufferSynth_exp) + 1 */

                            move16();                            

                            if ( st->hFdCngDec->hFdCngCom->olapBufferSynth[i] != 0 )

                            {

                                hdrm = s_min( hdrm, norm_s( st->hFdCngDec->hFdCngCom->olapBufferSynth[i] ) );

                            }

#else

                            st->hFdCngDec->hFdCngCom->olapBufferSynth_fx[i] = Mult_32_16( L_shl( st->hFdCngDec->hFdCngCom->olapBufferSynth_fx[i], 1 ), (Word16) 26214 /* 1.6f in Q14 */ );

                            move32();

#endif

                        }

#ifdef FIX_BASOP_2262_OLAP_BUFFER_SYNTH_SWITCHING

                        IF( NE_16( hdrm, 0 ) )

                        {

                            scale_sig( st->hFdCngDec->hFdCngCom->olapBufferSynth, shl( st->L_frame, 1 ), Q1 );

                        }

                        ELSE

                        {

                            st->hFdCngDec->hFdCngCom->olapBufferSynth_exp = add( st->hFdCngDec->hFdCngCom->olapBufferSynth_exp, 1 );

                        }

#endif

                    }

                }