r2_dec.c

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#include "sr_lpc10.h"


/* $$$ esto esta repe */
static INDEX tau[64] = {
    20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
    30, 31, 32, 33, 34, 35, 36, 37, 38, 39,

    40, 42, 44, 46, 48,
    50, 52, 54, 56, 58,
    60, 62, 64, 66, 68,
    70, 72, 74, 76, 78,

    80, 84, 88, 92, 96,
    100, 104, 108, 112, 116,
    120, 124, 128, 132, 136,
    140, 144, 148, 152, 156
};

/* last RCs bit */
INDEX bit[10] = {
  16, 16, 16, 16, 8, 8, 8, 8, 4, 2
};



VOID decode_dgram ( INDEX itab[13], BOOL voice[2],
    INT * pitch, FLOAT * rms, FLOAT rc[ORDER])
{
    INDEX i;

    /* Sign extend RC's */
    for (i = 0; i < ORDER; i++)
        if ((ITAB13_IRC(i) & bit[i]) != 0)
            ITAB13_IRC(i) -= (bit[i] << 1);

    unquant (itab,voice,pitch,rms,rc);
    *pitch = tau[*pitch];
}

/**********************************************************/

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