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- /* ----------------------------------------------------------------------
- * Copyright (C) 2010 ARM Limited. All rights reserved.
- *
- * $Date: 29. November 2010
- * $Revision: V1.0.3
- *
- * Project: CMSIS DSP Library
- *
- * Title: math_helper.h
- *
- *
- * Description: Prototypes of all helper functions required.
- *
- * Target Processor: Cortex-M4/Cortex-M3
- *
- * Version 1.0.3 2010/11/29
- * Re-organized the CMSIS folders and updated documentation.
- *
- * Version 1.0.2 2010/11/11
- * Documentation updated.
- *
- * Version 1.0.1 2010/10/05
- * Production release and review comments incorporated.
- *
- * Version 1.0.0 2010/09/20
- * Production release and review comments incorporated.
- *
- * Version 0.0.7 2010/06/10
- * Misra-C changes done
- * -------------------------------------------------------------------- */
- #ifndef MATH_HELPER_H
- #define MATH_HELPER_H
- #include "arm_math.h"
- float arm_snr_f32(float *pRef, float *pTest, uint32_t buffSize);
- double arm_snr_f64(double *pRef, double *pTest, uint32_t buffSize);
- void arm_float_to_q12_20(float *pIn, q31_t * pOut, uint32_t numSamples);
- void arm_provide_guard_bits_q15(q15_t *input_buf, uint32_t blockSize, uint32_t guard_bits);
- void arm_provide_guard_bits_q31(q31_t *input_buf, uint32_t blockSize, uint32_t guard_bits);
- void arm_float_to_q14(float *pIn, q15_t *pOut, uint32_t numSamples);
- void arm_float_to_q29(float *pIn, q31_t *pOut, uint32_t numSamples);
- void arm_float_to_q28(float *pIn, q31_t *pOut, uint32_t numSamples);
- void arm_float_to_q30(float *pIn, q31_t *pOut, uint32_t numSamples);
- void arm_clip_f32(float *pIn, uint32_t numSamples);
- uint32_t arm_calc_guard_bits(uint32_t num_adds);
- void arm_apply_guard_bits (float32_t * pIn, uint32_t numSamples, uint32_t guard_bits);
- uint32_t arm_compare_fixed_q15(q15_t *pIn, q15_t * pOut, uint32_t numSamples);
- uint32_t arm_compare_fixed_q31(q31_t *pIn, q31_t *pOut, uint32_t numSamples);
- uint32_t arm_calc_2pow(uint32_t guard_bits);
- #endif
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