diff options
author | Piotr Krysik <ptrkrysik@gmail.com> | 2016-07-04 21:23:51 +0200 |
---|---|---|
committer | Piotr Krysik <ptrkrysik@gmail.com> | 2016-07-04 21:23:51 +0200 |
commit | 47ab20e45ea6bf30dcde61f359db517a25834aaa (patch) | |
tree | e6e0fb9d61b21a81df81ce1b88aad99dc368562d /lib/controlled_fractional_resampler_cc_impl.h | |
parent | 799133a2e63253480fd5ec7d2a8092595687a90f (diff) |
Added a controlled fractional resampler
Diffstat (limited to 'lib/controlled_fractional_resampler_cc_impl.h')
-rw-r--r-- | lib/controlled_fractional_resampler_cc_impl.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/lib/controlled_fractional_resampler_cc_impl.h b/lib/controlled_fractional_resampler_cc_impl.h new file mode 100644 index 0000000..73083ea --- /dev/null +++ b/lib/controlled_fractional_resampler_cc_impl.h @@ -0,0 +1,72 @@ +/* -*- c++ -*- */ +/* @file + * @author Piotr Krysik <ptrkrysik@gmail.com> + * @section LICENSE + * + * Gr-gsm 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. + * + * Gr-gsm 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 gr-gsm; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + * + */ + +#ifndef INCLUDED_GRGSM_CONTROLLED_FRACTIONAL_RESAMPLER_CC_IMPL_H +#define INCLUDED_GRGSM_CONTROLLED_FRACTIONAL_RESAMPLER_CC_IMPL_H + +#include <grgsm/controlled_fractional_resampler_cc.h> +//#include <gnuradio/filter/fractional_resampler_cc.h> +#include <gnuradio/filter/mmse_fir_interpolator_cc.h> + +using namespace gr::filter; + +namespace gr { + namespace gsm { + + class controlled_fractional_resampler_cc_impl : public controlled_fractional_resampler_cc + { + private: + float d_mu; + float d_mu_inc; + mmse_fir_interpolator_cc *d_resamp; + + inline uint64_t resample(const gr_complex *in, + uint64_t first_in_sample, + gr_complex *out, + uint64_t first_out_sample, + uint64_t samples_to_produce); + + public: + controlled_fractional_resampler_cc_impl(float phase_shift, + float resamp_ratio); + ~controlled_fractional_resampler_cc_impl(); + + void forecast(int noutput_items, + gr_vector_int &ninput_items_required); + + int general_work(int noutput_items, + gr_vector_int &ninput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); + + + float mu() const; + float resamp_ratio() const; + void set_mu(float mu); + void set_resamp_ratio(float resamp_ratio); + }; + + } // namespace grgsm +} // namespace gr + +#endif /* INCLUDED_GRGSM_CONTROLLED_FRACTIONAL_RESAMPLER_CC_IMPL_H */ + |