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/* -*- c++ -*- */
/*
* Copyright 2008,2012 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_WAVELET_SQUASH_FF_H_
# define INCLUDED_WAVELET_SQUASH_FF_H_
#include <wavelet_api.h>
#include <gr_sync_block.h>
#include <gsl/gsl_errno.h>
#include <gsl/gsl_interp.h>
#include <gsl/gsl_spline.h>
/*!
* \brief implements cheap resampling of spectrum directly from
* spectral points, using gsl interpolation
* \ingroup misc
*/
class wavelet_squash_ff;
typedef boost::shared_ptr<wavelet_squash_ff> wavelet_squash_ff_sptr;
WAVELET_API wavelet_squash_ff_sptr wavelet_make_squash_ff(const std::vector<float> &igrid,
const std::vector<float> &ogrid);
class WAVELET_API wavelet_squash_ff : public gr_sync_block
{
friend WAVELET_API wavelet_squash_ff_sptr wavelet_make_squash_ff(const std::vector<float> &igrid,
const std::vector<float> &ogrid);
size_t d_inum;
size_t d_onum;
double *d_igrid;
double *d_iwork;
double *d_ogrid;
gsl_interp_accel *d_accel;
gsl_spline *d_spline;
wavelet_squash_ff(const std::vector<float> &igrid,
const std::vector<float> &ogrid);
public:
~wavelet_squash_ff();
int work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
};
#endif
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