Commit 7745e2b1 authored by Sandesh Venkatesh's avatar Sandesh Venkatesh
Browse files

Fix for 3GPP issue 1425: IssueAssert in generate_masking_noise_dirac_ivas_fx... 

Fix for 3GPP issue 1425:  IssueAssert in generate_masking_noise_dirac_ivas_fx of BASOP decoder when fed with MASA bitstream from BASOP encoder

Link #1425
parent d74de338

lib_dec/fd_cng_dec_fx.c

+15 −19
Original line number Diff line number Diff line
@@ -1318,14 +1318,11 @@ Word16 ApplyFdCng_ivas_fx( 
                                e_shift = sub( s, q_norm );

                            }

                        }

                        FOR( ; k < hFdCngCom->npart; k++ )

                        {

                            FOR( ; j <= hFdCngCom->part[k]; j++ )

                        FOR( ; j < FFTCLDFBLEN; j++ )

                        {

                            cngNoiseLevel[j] = L_shl( cngNoiseLevel[j], sub( s, e_shift ) ); /*Q: s*/

                            move32();

                        }

                        }



                        *cngNoiseLevel_exp = add( add( hFdCngDec->bandNoiseShape_exp, s2 ), e_shift );

                        move16();
@@ -1685,14 +1682,13 @@ Word16 ApplyFdCng_ivas_fx( 
                    }

                    /* adapt scaling for rest of the buffer */

                    s = sub( *cngNoiseLevel_exp, add( hFdCngDec->bandNoiseShape_exp, s2 ) );

                    FOR( ; k < hFdCngCom->npart; k++ )

                    {

                        FOR( ; j <= hFdCngCom->part[k]; j++ )



                    FOR( ; j < FFTCLDFBLEN; j++ )

                    {

                        cngNoiseLevel[j] = L_shl( cngNoiseLevel[j], s ); /*Q31 - hFdCngDec->bandNoiseShape_exp + s*/

                        move32();

                    }

                    }



                    *cngNoiseLevel_exp = add( hFdCngDec->bandNoiseShape_exp, s2 );

                    move16();

                }
@@ -1759,15 +1755,15 @@ Word16 ApplyFdCng_ivas_fx( 
                    }

                    /* adapt scaling for rest of the buffer */

                    s = sub( *cngNoiseLevel_exp, add( hFdCngDec->bandNoiseShape_exp, s2 ) );

                    FOR( ; k < hFdCngCom->npart; k++ )

                    {

                        FOR( ; j <= hFdCngCom->part[k]; j++ )



                    FOR( ; j < FFTCLDFBLEN; j++ )

                    {

                        /* NOTE: saturation is added here as part of issue 1218 fix. after rescaling the fdcng noise estimation buffers, due to slight precision loss, values may slightly overflow */

                        cngNoiseLevel[j] = L_shl_sat( cngNoiseLevel[j], s ); /*Q31 - hFdCngDec->bandNoiseShape_exp + s*/

                        move32();

                    }

                    }





                    *cngNoiseLevel_exp = add( hFdCngDec->bandNoiseShape_exp, s2 );

                    move16();

                }