log.h

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/* SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright(c) 2021 Intel Corporation. All rights reserved.
 *
 * Author: Shriram Shastry <malladi.sastry@linux.intel.com>
 *
 */
 
#ifndef __SOF_MATH_BASE_LOGARITHM_H__
#define __SOF_MATH_BASE_LOGARITHM_H__
 
#include <stdint.h>
 
#define ONE_OVER_LOG2_10    2647887844335ULL    /* 1/log2(10),Q1.43 */
#define ONE_OVER_LOG2_E     6096987078286ULL    /* 1/log2(exp(1)), Q1.43 */
/* Function Declarations */
int32_t base2_logarithm(uint32_t u);
uint32_t ln_int32(uint32_t numerator);
uint32_t log10_int32(uint32_t numerator);
 
#endif