Libav
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#include <stdint.h>
Go to the source code of this file.
Functions | |
int | ff_exp2 (uint16_t power) |
fixed-point implementation of exp2(x) in [0; 1] domain. | |
int | ff_log2_q15 (uint32_t value) |
Calculate log2(x). | |
static int | bidir_sal (int value, int offset) |
Shift value left or right depending on sign of offset parameter. |
int ff_exp2 | ( | uint16_t | power | ) |
fixed-point implementation of exp2(x) in [0; 1] domain.
power | argument to exp2, 0 <= power <= 0x7fff |
Definition at line 47 of file celp_math.c.
int ff_log2_q15 | ( | uint32_t | value | ) |
Calculate log2(x).
value | function argument, 0 < value <= 7fff ffff |
Definition at line 70 of file celp_math.c.
Referenced by ff_acelp_update_past_gain().
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inlinestatic |
Shift value left or right depending on sign of offset parameter.
value | value to shift |
offset | shift offset |
Definition at line 52 of file celp_math.h.