PeerStreamer

static void ac3_lshift_int16_c(int16_t *src, unsigned int len,

                               unsigned int shift)

{

    uint32_t *src32 = (uint32_t *)src;

    const uint32_t mask = ~(((1 << shift) - 1) << 16);

    int i;

    len >>= 1;

    for (i = 0; i < len; i += 8) {

        src32[i  ] = (src32[i  ] << shift) & mask;

        src32[i+1] = (src32[i+1] << shift) & mask;

        src32[i+2] = (src32[i+2] << shift) & mask;

        src32[i+3] = (src32[i+3] << shift) & mask;

        src32[i+4] = (src32[i+4] << shift) & mask;

        src32[i+5] = (src32[i+5] << shift) & mask;

        src32[i+6] = (src32[i+6] << shift) & mask;

        src32[i+7] = (src32[i+7] << shift) & mask;

    }

}

static void ac3_rshift_int32_c(int32_t *src, unsigned int len,

                               unsigned int shift)

{

    do {

        *src++ >>= shift;

        *src++ >>= shift;

        *src++ >>= shift;

        *src++ >>= shift;

        *src++ >>= shift;

        *src++ >>= shift;

        *src++ >>= shift;

        *src++ >>= shift;

        len -= 8;

    } while (len > 0);

}

    c->ac3_lshift_int16 = ac3_lshift_int16_c;

    c->ac3_rshift_int32 = ac3_rshift_int32_c;