Commit bd946cdd authored by TYAGIRIS's avatar TYAGIRIS
Browse files

impove ref power precision

parent 6cf87ab2

lib_com/options.h

+2 −1
Original line number Diff line number Diff line
@@ -77,8 +77,9 @@ 
#define FIX_1942_ASSERTION_LOWSHELF                          /* FhG: Modified the target_gains_db_fx calculation in compute_t60_coeffs_fx() */

#define FIX_1944_CRASH_FOR_STEREO                            /* FhG: improve TonalMDCTConceal_InsertNoise calculation precision */

#define FIX_1970_SBA_CRASH                                   /* Dlb: Fix for issue 1970, SBA crash */



#define FIX_1946_CRASH_JBM_PROCESSING                        /* FhG: Increased guard bits of DFT_fx */

#define FIX_1985_SBA_714_HF_LOSS                             /* Dlb: Fix for issue 1985, improved dirac ref pow precision*/



/* #################### Start BASOP porting switches ############################ */



#define NONBE_1244_FIX_SWB_BWE_MEMORY                   /* VA: issue 1244: fix to SWB BWE memory in case of switching from FB coding - pending a review by Huawei */

lib_rend/ivas_dirac_rend_fx.c

+60 −0
Original line number Diff line number Diff line
@@ -2632,10 +2632,56 @@ void protoSignalComputation4_fx( 
    Word32 sq_tmp_fx;

    Word32 *p_proto_buffer_fx;

    Word16 min_q_shift, q_shift;

#ifndef FIX_1985_SBA_714_HF_LOSS

    Word16 min_q_shift2, q_shift2;

#endif

    Word32 re, im;

    Word16 proto_power_smooth_fx_q, sq_tmp_q;

#ifdef FIX_1985_SBA_714_HF_LOSS

    Word64 ref_pow64[CLDFB_NO_CHANNELS_MAX], re64;

    Word16 sf1, sf2;

#endif



#ifdef FIX_1985_SBA_714_HF_LOSS

    sf1 = 63;

    sf2 = 63;

    FOR( l = 0; l < num_freq_bands; l++ )

    {

        re64 = W_mult_32_32( RealBuffer_fx[0][0][l], RealBuffer_fx[0][0][l] );

        re64 = W_mac_32_32( re64, ImagBuffer_fx[0][0][l], ImagBuffer_fx[0][0][l] );

        ref_pow64[l] = W_shr( re64, 1 ); // 2*q_cldfb +1

        move64();

    }

    FOR( k = 1; k < 4; k++ )

    {

        FOR( l = 0; l < num_freq_bands; l++ )

        {

            re64 = W_mult_32_32( RealBuffer_fx[k][0][l], RealBuffer_fx[k][0][l] );

            re64 = W_mac_32_32( re64, ImagBuffer_fx[k][0][l], ImagBuffer_fx[k][0][l] );

            ref_pow64[l] = W_add( ref_pow64[l], W_shr( re64, 1 ) ); // 2*q_cldfb +1

            move64();

        }

    }

    FOR( l = 0; l < s_min( CLDFB_NO_CHANNELS_HALF, num_freq_bands ); l++ )

    {

        sf1 = s_min( sf1, W_norm( ref_pow64[l] ) );

    }

    FOR( l = 0; l < s_min( CLDFB_NO_CHANNELS_HALF, num_freq_bands ); l++ )

    {

        reference_power_fx[l] = W_extract_h( W_shl( ref_pow64[l], sf1 ) );

    }

    reference_power_q[0] = sub( add( shl( q_cldfb, 1 ), sf1 ), 31 );



    FOR( l = CLDFB_NO_CHANNELS_HALF; l < num_freq_bands; l++ )

    {

        sf2 = s_min( sf2, W_norm( ref_pow64[l] ) );

    }

    FOR( l = CLDFB_NO_CHANNELS_HALF; l < num_freq_bands; l++ )

    {

        reference_power_fx[l] = W_extract_h( W_shl( ref_pow64[l], sf2 ) );

    }

    reference_power_q[l] = sub( add( shl( q_cldfb, 1 ), sf2 ), 31 );

#else

    min_q_shift = Q31;

    move16();

    q_shift = Q31;
@@ -2695,8 +2741,22 @@ void protoSignalComputation4_fx( 
    sq_tmp_q = sub( add( add( q_cldfb, min_q_shift2 ), add( q_cldfb, min_q_shift2 ) ), 31 );

    reference_power_q[1] = sq_tmp_q;

    move16();

#endif



#ifdef FIX_1985_SBA_714_HF_LOSS

    min_q_shift = Q31;

    /* calculate the shift possible for both RealBuffer_fx and ImagBuffer_fx buffers*/

    FOR( k = 0; k < s_max( 4, nchan_transport ); k++ )

    {

        q_shift = L_norm_arr( RealBuffer_fx[k][0], num_freq_bands );

        min_q_shift = s_min( q_shift, min_q_shift );

        q_shift = L_norm_arr( ImagBuffer_fx[k][0], num_freq_bands );

        min_q_shift = s_min( q_shift, min_q_shift );

    }

    min_q_shift = sub( min_q_shift, find_guarded_bits_fx( 2 ) );

#else

    min_q_shift = sub( s_min( q_shift, q_shift2 ), find_guarded_bits_fx( 2 ) );

#endif



    /*For decorrelated diffuseness*/

    FOR( l = 0; l < num_outputs_diff; l++ )