Cleanup and fix for asan error

    int16_t prevShift;

    float *pstart1;

    float *pstart2;

    float *pstart3;

    float buffer[ITD_MEM_LEN + L_SUBFRAME5MS_48k];

    float *p_input;

    float *out_buf_A, *out_buf_B;

        tlen1 = (int16_t) ( ( (float) ( transition_len * prevShift ) / ( (float) ( prevShift + currShift ) ) ) + 0.5f );

        tlen2 = transition_len - tlen1;

        pstart1 = p_input - prevShift;

        pstart2 = p_input + tlen1;

        length_in1 = tlen1 + prevShift;

        pstart2 = pstart1 + length_in1;

        length_in2 = tlen2 - currShift;

        pstart3 = pstart2 + length_in2;

    }

    else

    {

        tlen1 = transition_len;

        tlen2 = 0;

        pstart1 = p_input - prevShift;

        pstart2 = p_input + tlen1 - currShift;

        length_in1 = transition_len + prevShift - currShift;

        pstart2 = pstart1 + length_in1;

        length_in2 = 0;

        pstart3 = pstart2 + length_in2;

    }

    if ( *previtd == 0 )

    mvr2r( pstart2, out_buf_A + tlen1, length - tlen1 );

    /* Output buffer B */

    mvr2r( input, out_buf_B, tlen1 );

    mvr2r( p_input, out_buf_B, tlen1 );

    sincResample( pstart2, out_buf_B + tlen1, length_in2, tlen2 );

    mvr2r( pstart2 + tlen2 + currShift, out_buf_B + transition_len, tlen3 );

    mvr2r( pstart3, out_buf_B + transition_len, tlen3 );

    *previtd = itd;

    wmops_sub_end();