CMSIS-DSP  
CMSIS DSP Software Library
 
Loading...
Searching...
No Matches

Functions

int32_t arm_cfft_tmp_buffer_size (arm_math_target_arch arch, arm_math_datatype dt, uint32_t nb_samples, uint32_t buf_id)
 Calculate required length for the temporary buffer.
 
int32_t arm_cfft_output_buffer_size (arm_math_target_arch arch, arm_math_datatype dt, uint32_t nb_samples)
 Calculate required length for the output buffer.
 
int32_t arm_cifft_output_buffer_size (arm_math_target_arch arch, arm_math_datatype dt, uint32_t nb_samples)
 Calculate required length for the output buffer.
 

Description

Function Documentation

◆ arm_cfft_output_buffer_size()

int32_t arm_cfft_output_buffer_size ( arm_math_target_arch  arch,
arm_math_datatype  dt,
uint32_t  nb_samples 
)

Calculate required length for the output buffer.

Parameters
[in]archTarget architecture identification
[in]dtData type of the input data
[in]nb_samplesNumber of samples in the input data
Returns
Length in datatype elements (real numbers) for the output buffer
Note
0 means not applicable (temporary buffer not needed)
-1 means error : configuration not supported

◆ arm_cfft_tmp_buffer_size()

int32_t arm_cfft_tmp_buffer_size ( arm_math_target_arch  arch,
arm_math_datatype  dt,
uint32_t  nb_samples,
uint32_t  buf_id 
)

Calculate required length for the temporary buffer.

Parameters
[in]archTarget architecture identification
[in]dtData type of the input data
[in]nb_samplesNumber of samples
[in]buf_idIdentification for the temporary buffer
Returns
Length in datatype elements (real numbers) for the temporary buffer
Note
0 means not applicable (temporary buffer not needed)
-1 means error : configuration not supported

◆ arm_cifft_output_buffer_size()

int32_t arm_cifft_output_buffer_size ( arm_math_target_arch  arch,
arm_math_datatype  dt,
uint32_t  nb_samples 
)

Calculate required length for the output buffer.

Parameters
[in]archTarget architecture identification
[in]dtData type of the input data
[in]nb_samplesNumber of samples in the input data
Returns
Length in datatype elements (real numbers) for the output buffer
Note
0 means not applicable (temporary buffer not needed)
-1 means error : configuration not supported