transform_functions.h File Reference

Data Structures
struct	arm_cfft_radix2_instance_q15
	Instance structure for the Q15 CFFT/CIFFT function. More...
struct	arm_cfft_radix4_instance_q15
	Instance structure for the Q15 CFFT/CIFFT function. More...
struct	arm_cfft_radix2_instance_q31
	Instance structure for the Radix-2 Q31 CFFT/CIFFT function. More...
struct	arm_cfft_radix4_instance_q31
	Instance structure for the Q31 CFFT/CIFFT function. More...
struct	arm_cfft_radix2_instance_f32
	Instance structure for the floating-point CFFT/CIFFT function. More...
struct	arm_cfft_radix4_instance_f32
	Instance structure for the floating-point CFFT/CIFFT function. More...
struct	arm_cfft_instance_q15
	Instance structure for the fixed-point CFFT/CIFFT function. More...
struct	arm_cfft_instance_q31
	Instance structure for the fixed-point CFFT/CIFFT function. More...
struct	arm_cfft_instance_f32
	Instance structure for the floating-point CFFT/CIFFT function. More...
struct	arm_cfft_instance_f64
	Instance structure for the Double Precision Floating-point CFFT/CIFFT function. More...
struct	arm_rfft_instance_q15
	Instance structure for the Q15 RFFT/RIFFT function. More...
struct	arm_rfft_instance_q31
	Instance structure for the Q31 RFFT/RIFFT function. More...
struct	arm_rfft_instance_f32
	Instance structure for the floating-point RFFT/RIFFT function. More...
struct	arm_rfft_fast_instance_f64
	Instance structure for the Double Precision Floating-point RFFT/RIFFT function. More...
struct	arm_rfft_fast_instance_f32
	Instance structure for the floating-point RFFT/RIFFT function. More...
struct	arm_dct4_instance_f32
	Instance structure for the floating-point DCT4/IDCT4 function. More...
struct	arm_dct4_instance_q31
	Instance structure for the Q31 DCT4/IDCT4 function. More...
struct	arm_dct4_instance_q15
	Instance structure for the Q15 DCT4/IDCT4 function. More...
struct	arm_mfcc_instance_f32
	Instance structure for the Floating-point MFCC function. More...
struct	arm_mfcc_instance_q31
struct	arm_mfcc_instance_q15

Functions
arm_status	arm_cfft_radix2_init_q15 (arm_cfft_radix2_instance_q15 *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)
	Initialization function for the Q15 CFFT/CIFFT. More...
void	arm_cfft_radix2_q15 (const arm_cfft_radix2_instance_q15 *S, q15_t *pSrc)
	Processing function for the fixed-point CFFT/CIFFT. More...
arm_status	arm_cfft_radix4_init_q15 (arm_cfft_radix4_instance_q15 *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)
	Initialization function for the Q15 CFFT/CIFFT. More...
void	arm_cfft_radix4_q15 (const arm_cfft_radix4_instance_q15 *S, q15_t *pSrc)
	Processing function for the Q15 CFFT/CIFFT. More...
arm_status	arm_cfft_radix2_init_q31 (arm_cfft_radix2_instance_q31 *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)
	Initialization function for the Q31 CFFT/CIFFT. More...
void	arm_cfft_radix2_q31 (const arm_cfft_radix2_instance_q31 *S, q31_t *pSrc)
	Processing function for the fixed-point CFFT/CIFFT. More...
void	arm_cfft_radix4_q31 (const arm_cfft_radix4_instance_q31 *S, q31_t *pSrc)
	Processing function for the Q31 CFFT/CIFFT. More...
arm_status	arm_cfft_radix4_init_q31 (arm_cfft_radix4_instance_q31 *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)
	Initialization function for the Q31 CFFT/CIFFT. More...
arm_status	arm_cfft_radix2_init_f32 (arm_cfft_radix2_instance_f32 *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)
	Initialization function for the floating-point CFFT/CIFFT. More...
void	arm_cfft_radix2_f32 (const arm_cfft_radix2_instance_f32 *S, float32_t *pSrc)
	Radix-2 CFFT/CIFFT. More...
arm_status	arm_cfft_radix4_init_f32 (arm_cfft_radix4_instance_f32 *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)
	Initialization function for the floating-point CFFT/CIFFT. More...
void	arm_cfft_radix4_f32 (const arm_cfft_radix4_instance_f32 *S, float32_t *pSrc)
	Processing function for the floating-point Radix-4 CFFT/CIFFT. More...
arm_status	arm_cfft_init_q15 (arm_cfft_instance_q15 *S, uint16_t fftLen)
	Initialization function for the cfft q15 function. More...
void	arm_cfft_q15 (const arm_cfft_instance_q15 *S, q15_t *p1, uint8_t ifftFlag, uint8_t bitReverseFlag)
	Processing function for Q15 complex FFT. More...
arm_status	arm_cfft_init_q31 (arm_cfft_instance_q31 *S, uint16_t fftLen)
	Initialization function for the cfft q31 function. More...
void	arm_cfft_q31 (const arm_cfft_instance_q31 *S, q31_t *p1, uint8_t ifftFlag, uint8_t bitReverseFlag)
	Processing function for the Q31 complex FFT. More...
arm_status	arm_cfft_init_f32 (arm_cfft_instance_f32 *S, uint16_t fftLen)
	Initialization function for the cfft f32 function. More...
void	arm_cfft_f32 (const arm_cfft_instance_f32 *S, float32_t *p1, uint8_t ifftFlag, uint8_t bitReverseFlag)
	Processing function for the floating-point complex FFT. More...
arm_status	arm_cfft_init_f64 (arm_cfft_instance_f64 *S, uint16_t fftLen)
	Initialization function for the cfft f64 function. More...
void	arm_cfft_f64 (const arm_cfft_instance_f64 *S, float64_t *p1, uint8_t ifftFlag, uint8_t bitReverseFlag)
	Processing function for the Double Precision floating-point complex FFT. More...
arm_status	arm_rfft_init_q15 (arm_rfft_instance_q15 *S, uint32_t fftLenReal, uint32_t ifftFlagR, uint32_t bitReverseFlag)
	Initialization function for the Q15 RFFT/RIFFT. More...
void	arm_rfft_q15 (const arm_rfft_instance_q15 *S, q15_t *pSrc, q15_t *pDst)
	Processing function for the Q15 RFFT/RIFFT. More...
arm_status	arm_rfft_init_q31 (arm_rfft_instance_q31 *S, uint32_t fftLenReal, uint32_t ifftFlagR, uint32_t bitReverseFlag)
	Initialization function for the Q31 RFFT/RIFFT. More...
void	arm_rfft_q31 (const arm_rfft_instance_q31 *S, q31_t *pSrc, q31_t *pDst)
	Processing function for the Q31 RFFT/RIFFT. More...
arm_status	arm_rfft_init_f32 (arm_rfft_instance_f32 *S, arm_cfft_radix4_instance_f32 *S_CFFT, uint32_t fftLenReal, uint32_t ifftFlagR, uint32_t bitReverseFlag)
	Initialization function for the floating-point RFFT/RIFFT. More...
void	arm_rfft_f32 (const arm_rfft_instance_f32 *S, float32_t *pSrc, float32_t *pDst)
	Processing function for the floating-point RFFT/RIFFT. Source buffer is modified by this function. More...
arm_status	arm_rfft_fast_init_f64 (arm_rfft_fast_instance_f64 *S, uint16_t fftLen)
	Initialization function for the Double Precision floating-point real FFT. More...
void	arm_rfft_fast_f64 (arm_rfft_fast_instance_f64 *S, float64_t *p, float64_t *pOut, uint8_t ifftFlag)
	Processing function for the Double Precision floating-point real FFT. More...
arm_status	arm_rfft_fast_init_f32 (arm_rfft_fast_instance_f32 *S, uint16_t fftLen)
	Initialization function for the floating-point real FFT. More...
void	arm_rfft_fast_f32 (const arm_rfft_fast_instance_f32 *S, float32_t *p, float32_t *pOut, uint8_t ifftFlag)
	Processing function for the floating-point real FFT. More...
arm_status	arm_dct4_init_f32 (arm_dct4_instance_f32 *S, arm_rfft_instance_f32 *S_RFFT, arm_cfft_radix4_instance_f32 *S_CFFT, uint16_t N, uint16_t Nby2, float32_t normalize)
	Initialization function for the floating-point DCT4/IDCT4. More...
void	arm_dct4_f32 (const arm_dct4_instance_f32 *S, float32_t *pState, float32_t *pInlineBuffer)
	Processing function for the floating-point DCT4/IDCT4. More...
arm_status	arm_dct4_init_q31 (arm_dct4_instance_q31 *S, arm_rfft_instance_q31 *S_RFFT, arm_cfft_radix4_instance_q31 *S_CFFT, uint16_t N, uint16_t Nby2, q31_t normalize)
	Initialization function for the Q31 DCT4/IDCT4. More...
void	arm_dct4_q31 (const arm_dct4_instance_q31 *S, q31_t *pState, q31_t *pInlineBuffer)
	Processing function for the Q31 DCT4/IDCT4. More...
arm_status	arm_dct4_init_q15 (arm_dct4_instance_q15 *S, arm_rfft_instance_q15 *S_RFFT, arm_cfft_radix4_instance_q15 *S_CFFT, uint16_t N, uint16_t Nby2, q15_t normalize)
	Initialization function for the Q15 DCT4/IDCT4. More...
void	arm_dct4_q15 (const arm_dct4_instance_q15 *S, q15_t *pState, q15_t *pInlineBuffer)
	Processing function for the Q15 DCT4/IDCT4. More...
arm_status	arm_mfcc_init_f32 (arm_mfcc_instance_f32 *S, uint32_t fftLen, uint32_t nbMelFilters, uint32_t nbDctOutputs, const float32_t *dctCoefs, const uint32_t *filterPos, const uint32_t *filterLengths, const float32_t *filterCoefs, const float32_t *windowCoefs)
	Initialization of the MFCC F32 instance structure. More...
void	arm_mfcc_f32 (const arm_mfcc_instance_f32 *S, float32_t *pSrc, float32_t *pDst, float32_t *pTmp)
	MFCC F32. More...
arm_status	arm_mfcc_init_q31 (arm_mfcc_instance_q31 *S, uint32_t fftLen, uint32_t nbMelFilters, uint32_t nbDctOutputs, const q31_t *dctCoefs, const uint32_t *filterPos, const uint32_t *filterLengths, const q31_t *filterCoefs, const q31_t *windowCoefs)
	Initialization of the MFCC F32 instance structure. More...
arm_status	arm_mfcc_q31 (const arm_mfcc_instance_q31 *S, q31_t *pSrc, q31_t *pDst, q31_t *pTmp)
	MFCC Q31. More...
arm_status	arm_mfcc_init_q15 (arm_mfcc_instance_q15 *S, uint32_t fftLen, uint32_t nbMelFilters, uint32_t nbDctOutputs, const q15_t *dctCoefs, const uint32_t *filterPos, const uint32_t *filterLengths, const q15_t *filterCoefs, const q15_t *windowCoefs)
	Initialization of the MFCC F32 instance structure. More...
arm_status	arm_mfcc_q15 (const arm_mfcc_instance_q15 *S, q15_t *pSrc, q15_t *pDst, q31_t *pTmp)
	MFCC Q15. More...