signal.h File Reference

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Namespaces | Functions
signal.h File Reference
`#include <af/defines.h>`

Go to the source code of this file.

## Namespaces
| af

## Functions
AFAPI array | approx1 (const array &in, const array &pos, const interpType method=AF_INTERP_LINEAR, const float offGrid=0.0f)
| C++ Interface for data interpolation on one dimensional signals. More...
AFAPI array | approx2 (const array &in, const array &pos0, const array &pos1, const interpType method=AF_INTERP_LINEAR, const float offGrid=0.0f)
| C++ Interface for data interpolation on two dimensional signals. More...
AFAPI array | fftNorm (const array &in, const double norm_factor, const dim_t odim0=0)
| C++ Interface for fast fourier transform on one dimensional signals. More...
AFAPI array | fft2Norm (const array &in, const double norm_factor, const dim_t odim0=0, const dim_t odim1=0)
| C++ Interface for fast fourier transform on two dimensional signals. More...
AFAPI array | fft3Norm (const array &in, const double norm_factor, const dim_t odim0=0, const dim_t odim1=0, const dim_t odim2=0)
| C++ Interface for fast fourier transform on three dimensional signals. More...
AFAPI void | fftInPlace (array &in, const double norm_factor=1)
| C++ Interface for fast fourier transform on one dimensional signals. More...
AFAPI void | fft2InPlace (array &in, const double norm_factor=1)
| C++ Interface for fast fourier transform on two dimensional signals. More...
AFAPI void | fft3InPlace (array &in, const double norm_factor=1)
| C++ Interface for fast fourier transform on three dimensional signals. More...
AFAPI array | fft (const array &in, const dim_t odim0=0)
| C++ Interface for fast fourier transform on one dimensional signals. More...
AFAPI array | fft2 (const array &in, const dim_t odim0=0, const dim_t odim1=0)
| C++ Interface for fast fourier transform on two dimensional signals. More...
AFAPI array | fft3 (const array &in, const dim_t odim0=0, const dim_t odim1=0, const dim_t odim2=0)
| C++ Interface for fast fourier transform on three dimensional signals. More...
AFAPI array | dft (const array &in, const double norm_factor, const dim4 outDims)
| C++ Interface for fast fourier transform on any(1d, 2d, 3d) dimensional signals. More...
AFAPI array | dft (const array &in, const dim4 outDims)
| C++ Interface for fast fourier transform on any(1d, 2d, 3d) dimensional signals. More...
AFAPI array | dft (const array &in)
| C++ Interface for fast fourier transform on any(1d, 2d, 3d) dimensional signals. More...
AFAPI array | ifftNorm (const array &in, const double norm_factor, const dim_t odim0=0)
| C++ Interface for inverse fast fourier transform on one dimensional signals. More...
AFAPI array | ifft2Norm (const array &in, const double norm_factor, const dim_t odim0=0, const dim_t odim1=0)
| C++ Interface for inverse fast fourier transform on two dimensional signals. More...
AFAPI array | ifft3Norm (const array &in, const double norm_factor, const dim_t odim0=0, const dim_t odim1=0, const dim_t odim2=0)
| C++ Interface for inverse fast fourier transform on three dimensional signals. More...
AFAPI void | ifftInPlace (array &in, const double norm_factor=1)
| C++ Interface for fast fourier transform on one dimensional signals. More...
AFAPI void | ifft2InPlace (array &in, const double norm_factor=1)
| C++ Interface for fast fourier transform on two dimensional signals. More...
AFAPI void | ifft3InPlace (array &in, const double norm_factor=1)
| C++ Interface for fast fourier transform on three dimensional signals. More...
AFAPI array | ifft (const array &in, const dim_t odim0=0)
| C++ Interface for inverse fast fourier transform on one dimensional signals. More...
AFAPI array | ifft2 (const array &in, const dim_t odim0=0, const dim_t odim1=0)
| C++ Interface for inverse fast fourier transform on two dimensional signals. More...
AFAPI array | ifft3 (const array &in, const dim_t odim0=0, const dim_t odim1=0, const dim_t odim2=0)
| C++ Interface for inverse fast fourier transform on three dimensional signals. More...
AFAPI array | idft (const array &in, const double norm_factor, const dim4 outDims)
| C++ Interface for inverse fast fourier transform on any(1d, 2d, 3d) dimensional signals. More...
AFAPI array | idft (const array &in, const dim4 outDims)
| C++ Interface for inverse fast fourier transform on any(1d, 2d, 3d) dimensional signals. More...
AFAPI array | idft (const array &in)
| C++ Interface for inverse fast fourier transform on any(1d, 2d, 3d) dimensional signals. More...
template<int rank>
array | fftR2C (const array &in, const dim4 &dims, const double norm_factor=0)
| C++ Interface for real to complex fast fourier transform for one dimensional signals. More...
template<int rank>
array | fftR2C (const array &in, const double norm_factor=0)
| C++ Interface for real to complex fast fourier transform for one dimensional signals. More...
template<int rank>
array | fftC2R (const array &in, bool is_odd=false, const double norm_factor=0)
| C++ Interface for complex to real fast fourier transform. More...
AFAPI array | convolve (const array &signal, const array &filter, const convMode mode=AF_CONV_DEFAULT, const convDomain domain=AF_CONV_AUTO)
| C++ Interface for convolution any(one through three) dimensional signals. More...
AFAPI array | convolve (const array &col_filter, const array &row_filter, const array &signal, const convMode mode=AF_CONV_DEFAULT)
| C++ Interface for separable convolution on two dimensional signals. More...
AFAPI array | convolve1 (const array &signal, const array &filter, const convMode mode=AF_CONV_DEFAULT, const convDomain domain=AF_CONV_AUTO)
| C++ Interface for convolution on one dimensional signals. More...
AFAPI array | convolve2 (const array &signal, const array &filter, const convMode mode=AF_CONV_DEFAULT, const convDomain domain=AF_CONV_AUTO)
| C++ Interface for convolution on two dimensional signals. More...
AFAPI array | convolve3 (const array &signal, const array &filter, const convMode mode=AF_CONV_DEFAULT, const convDomain domain=AF_CONV_AUTO)
| C++ Interface for convolution on three dimensional signals. More...
AFAPI array | fftConvolve (const array &signal, const array &filter, const convMode mode=AF_CONV_DEFAULT)
| C++ Interface for FFT-based convolution any(one through three) dimensional signals. More...
AFAPI array | fftConvolve1 (const array &signal, const array &filter, const convMode mode=AF_CONV_DEFAULT)
| C++ Interface for convolution on one dimensional signals. More...
AFAPI array | fftConvolve2 (const array &signal, const array &filter, const convMode mode=AF_CONV_DEFAULT)
| C++ Interface for convolution on two dimensional signals. More...
AFAPI array | fftConvolve3 (const array &signal, const array &filter, const convMode mode=AF_CONV_DEFAULT)
| C++ Interface for convolution on three dimensional signals. More...
AFAPI array | fir (const array &b, const array &x)
| C++ Interface for finite impulse response filter. More...
AFAPI array | iir (const array &b, const array &a, const array &x)
| C++ Interface for infinite impulse response filter. More...
AFAPI af_err | af_approx1 (af_array *out, const af_array in, const af_array pos, const af_interp_type method, const float offGrid)
| C Interface for signals interpolation on one dimensional signals. More...
AFAPI af_err | af_approx2 (af_array *out, const af_array in, const af_array pos0, const af_array pos1, const af_interp_type method, const float offGrid)
| C Interface for signals interpolation on two dimensional signals. More...
AFAPI af_err | af_fft (af_array *out, const af_array in, const double norm_factor, const dim_t odim0)
| C Interface for fast fourier transform on one dimensional signals. More...
AFAPI af_err | af_fft_inplace (af_array in, const double norm_factor)
| C Interface for fast fourier transform on one dimensional signals. More...
AFAPI af_err | af_fft2 (af_array *out, const af_array in, const double norm_factor, const dim_t odim0, const dim_t odim1)
| C Interface for fast fourier transform on two dimensional signals. More...
AFAPI af_err | af_fft2_inplace (af_array in, const double norm_factor)
| C Interface for fast fourier transform on two dimensional signals. More...
AFAPI af_err | af_fft3 (af_array *out, const af_array in, const double norm_factor, const dim_t odim0, const dim_t odim1, const dim_t odim2)
| C Interface for fast fourier transform on three dimensional signals. More...
AFAPI af_err | af_fft3_inplace (af_array in, const double norm_factor)
| C Interface for fast fourier transform on three dimensional signals. More...
AFAPI af_err | af_ifft (af_array *out, const af_array in, const double norm_factor, const dim_t odim0)
| C Interface for inverse fast fourier transform on one dimensional signals. More...
AFAPI af_err | af_ifft_inplace (af_array in, const double norm_factor)
| C Interface for fast fourier transform on one dimensional signals. More...
AFAPI af_err | af_ifft2 (af_array *out, const af_array in, const double norm_factor, const dim_t odim0, const dim_t odim1)
| C Interface for inverse fast fourier transform on two dimensional signals. More...
AFAPI af_err | af_ifft2_inplace (af_array in, const double norm_factor)
| C Interface for fast fourier transform on two dimensional signals. More...
AFAPI af_err | af_ifft3 (af_array *out, const af_array in, const double norm_factor, const dim_t odim0, const dim_t odim1, const dim_t odim2)
| C Interface for inverse fast fourier transform on three dimensional signals. More...
AFAPI af_err | af_ifft3_inplace (af_array in, const double norm_factor)
| C Interface for fast fourier transform on three dimensional signals. More...
AFAPI af_err | af_fft_r2c (af_array *out, const af_array in, const double norm_factor, const dim_t pad0)
| C Interface for real to complex fast fourier transform for one dimensional signals. More...
AFAPI af_err | af_fft2_r2c (af_array *out, const af_array in, const double norm_factor, const dim_t pad0, const dim_t pad1)
| C Interface for real to complex fast fourier transform for two dimensional signals. More...
AFAPI af_err | af_fft3_r2c (af_array *out, const af_array in, const double norm_factor, const dim_t pad0, const dim_t pad1, const dim_t pad2)
| C Interface for real to complex fast fourier transform for three dimensional signals. More...
AFAPI af_err | af_fft_c2r (af_array *out, const af_array in, const double norm_factor, const bool is_odd)
| C Interface for complex to real fast fourier transform for one dimensional signals. More...
AFAPI af_err | af_fft2_c2r (af_array *out, const af_array in, const double norm_factor, const bool is_odd)
| C Interface for complex to real fast fourier transform for two dimensional signals. More...
AFAPI af_err | af_fft3_c2r (af_array *out, const af_array in, const double norm_factor, const bool is_odd)
| C Interface for complex to real fast fourier transform for three dimensional signals. More...
AFAPI af_err | af_convolve1 (af_array *out, const af_array signal, const af_array filter, const af_conv_mode mode, af_conv_domain domain)
| C Interface for convolution on one dimensional signals. More...
AFAPI af_err | af_convolve2 (af_array *out, const af_array signal, const af_array filter, const af_conv_mode mode, af_conv_domain domain)
| C Interface for convolution on two dimensional signals. More...
AFAPI af_err | af_convolve3 (af_array *out, const af_array signal, const af_array filter, const af_conv_mode mode, af_conv_domain domain)
| C Interface for convolution on three dimensional signals. More...
AFAPI af_err | af_convolve2_sep (af_array *out, const af_array col_filter, const af_array row_filter, const af_array signal, const af_conv_mode mode)
| C Interface for separable convolution on two dimensional signals. More...
AFAPI af_err | af_fft_convolve1 (af_array *out, const af_array signal, const af_array filter, const af_conv_mode mode)
| C Interface for FFT-based convolution on one dimensional signals. More...
AFAPI af_err | af_fft_convolve2 (af_array *out, const af_array signal, const af_array filter, const af_conv_mode mode)
| C Interface for FFT-based convolution on two dimensional signals. More...
AFAPI af_err | af_fft_convolve3 (af_array *out, const af_array signal, const af_array filter, const af_conv_mode mode)
| C Interface for FFT-based convolution on three dimensional signals. More...
AFAPI af_err | af_fir (af_array *y, const af_array b, const af_array x)
| C++ Interface for finite impulse response filter. More...
AFAPI af_err | af_iir (af_array *y, const af_array b, const af_array a, const af_array x)
| C++ Interface for infinite impulse response filter. More...

## Function Documentation

AFAPI af_err af_fft_convolve1 | ( | af_array * | out,
|  | const af_array | signal,
|  | const af_array | filter,
|  | const af_conv_mode | mode
| ) |  |

C Interface for FFT-based convolution on one dimensional signals.

Parameters

  [out] | out | is convolved array
  [in] | signal | is the input signal
  [in] | filter | is the signal that shall be used for the convolution operation
  [in] | mode | indicates if the convolution should be expanded or not(where output size equals input)

Returns
  AF_SUCCESS if the convolution is successful, otherwise an appropriate error code is returned.