Added a controlled fractional resampler
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 */
+