Commit 0ccba10c authored by multrus's avatar multrus
Browse files

correct blending in blend_subfr2()

parent 2b2b178a

lib_com/calc_st_com.c

+13 −0
Original line number Diff line number Diff line
@@ -292,14 +292,27 @@ void scale_st( 
void blend_subfr2(

    float *sigIn1,

    float *sigIn2,

#ifdef FIX_FLOAT_1533_BLEND_SUBFR2

    int16_t L_subfr,

#endif

    float *sigOut )

{

#ifdef FIX_FLOAT_1533_BLEND_SUBFR2

    float fac1 = 1.f - ( 1.f / L_subfr );

    float fac2 = 0.f + ( 1.f / L_subfr );

    float step = 1.f / ( L_subfr / 2 );

#else

    float fac1 = 1.f - ( 1.f / L_SUBFR );

    float fac2 = 0.f + ( 1.f / L_SUBFR );

    float step = 1.f / ( L_SUBFR / 2 );

#endif

    int16_t i;



#ifdef FIX_FLOAT_1533_BLEND_SUBFR2

    for ( i = 0; i < L_subfr / 2; i++ )

#else

    for ( i = 0; i < L_SUBFR / 2; i++ )

#endif

    {

        sigOut[i] = fac1 * sigIn1[i] + fac2 * sigIn2[i];

        fac1 -= step;

lib_com/options.h

+1 −0
Original line number Diff line number Diff line
@@ -172,6 +172,7 @@ 
#define FIX_FLOAT_1493_MASA_ENCODE_STABILITY_IMPROVE    /* Nokia: float issue 1493: Improves float decision stability in MASA encoding by adjusting reduction code */



#define FIX_2432_ISM_SPIKES_16KHZ                       /* VA: basop issue 2432: fix spikes in ISM decoding at 16kHz output sampling rate */

#define FIX_FLOAT_1533_BLEND_SUBFR2                     /* FhG: float issue 1533: correct blending in blend_subfr2() */



/* ##################### End NON-BE switches ########################### */

lib_com/prot.h

+4 −1
Original line number Diff line number Diff line
@@ -10045,6 +10045,9 @@ int16_t tbe_celp_exc_offset( 
void blend_subfr2(

    float *sigIn1, /* i  : input signal for fade-out */

    float *sigIn2, /* i  : input signal for fade-in  */

#ifdef FIX_FLOAT_1533_BLEND_SUBFR2

    int16_t L_subfr, /* i  : subframe length           */

#endif

    float *sigOut /* o  : output signal             */

);

lib_dec/acelp_core_dec.c

+4 −0
Original line number Diff line number Diff line
@@ -1091,7 +1091,11 @@ ivas_error acelp_core_dec( 
            syn_filt( Aq, M, temp_buf + M + L_SUBFR, temp_buf, L_SUBFR, st->hPFstat->mem_stp + L_SYN_MEM - M, 0 );

            scale_st( syn, temp_buf, &st->hPFstat->gain_prec, L_SUBFR, -1 );

            mvr2r( temp_buf, syn, L_SUBFR / 2 );

#ifdef FIX_FLOAT_1533_BLEND_SUBFR2

            blend_subfr2( temp_buf + L_SUBFR / 2, syn + L_SUBFR / 2, L_SUBFR, syn + L_SUBFR / 2 );

#else

            blend_subfr2( temp_buf + L_SUBFR / 2, syn + L_SUBFR / 2, syn + L_SUBFR / 2 );

#endif

        }

        st->hPFstat->on = 0;

    }

lib_dec/acelp_core_switch_dec.c

+4 −0
Original line number Diff line number Diff line
@@ -201,7 +201,11 @@ ivas_error acelp_core_switch_dec( 
            syn_filt( Aq, M, old_exc, bpf_error_signal, L_SUBFR, st->hPFstat->mem_stp + L_SYN_MEM - M, 0 );

            scale_st( synth_intFreq, bpf_error_signal, &st->hPFstat->gain_prec, L_SUBFR, -1 );

            mvr2r( bpf_error_signal, synth_intFreq, L_SUBFR / 2 );

#ifdef FIX_FLOAT_1533_BLEND_SUBFR2

            blend_subfr2( bpf_error_signal + L_SUBFR / 2, synth_intFreq + L_SUBFR / 2, L_SUBFR, synth_intFreq + L_SUBFR / 2 );

#else

            blend_subfr2( bpf_error_signal + L_SUBFR / 2, synth_intFreq + L_SUBFR / 2, synth_intFreq + L_SUBFR / 2 );

#endif

        }

        st->hPFstat->on = 0;