Custom FFT library callback

Callback class for FFTW library calls

Description

App Configuration Pane: Custom Code

Configuration Objects: coder.CodeConfig | coder.EmbeddedCodeConfig

The Custom FFT library callback parameter specifies the callback class for FFTW library calls in code generated for fast Fourier transform (FFT) functions in MATLAB^® code.

To improve the execution speed of FFT functions, the code generator produces calls to the FFTW library that you specify in the callback class. If you do not specify a callback class, the code generator uses its own algorithms for FFT functions instead of calling the FFTW library.

If you select the Use built-in FFTW library check box, the code generator uses built-in FFTW libraries, even if you specify a callback class using the Custom FFT library callback parameter.

Settings

character vector

Callback class for FFTW calls in the generated code, specified as a character vector.

Programmatic Use

Property: CustomFFTCallback

Values: character vector

Version History

Introduced in R2017b