-static int ac3_max_msb_abs_int16_c(const int16_t *src, int len)
-{
- int i, v = 0;
- for (i = 0; i < len; i++)
- v |= abs(src[i]);
- return v;
-}
-
-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);
-}
-