Move HR demapping into a separate block
diff --git a/lib/demapping/tch_h_chans_demapper_impl.h b/lib/demapping/tch_h_chans_demapper_impl.h
new file mode 100644
index 0000000..ab0efd1
--- /dev/null
+++ b/lib/demapping/tch_h_chans_demapper_impl.h
@@ -0,0 +1,65 @@
+/* -*- c++ -*- */
+/*
+ * @file
+ * @author (C) 2018 by Andrew Artyushok <loony.developer@gmail.com>
+ * @author (C) 2018 by Vasil Velichkov <vvvelichkov@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_GSM_TCH_H_CHANS_DEMAPPER_IMPL_H
+#define INCLUDED_GSM_TCH_H_CHANS_DEMAPPER_IMPL_H
+
+#include <grgsm/demapping/tch_h_chans_demapper.h>
+
+namespace gr {
+ namespace gsm {
+
+ class tch_h_chans_demapper_impl : public tch_h_chans_demapper
+ {
+ private:
+ unsigned int d_timeslot;
+ unsigned int d_tch_h_channel;
+
+ // Downlink
+ uint32_t d_frame_numbers_dl[3][8]; // for checking consecutive frame numbers of tch
+ uint32_t d_frame_numbers_sacch_dl[4]; // for checking consecutive frame numbers of sacch
+ pmt::pmt_t d_bursts_dl[3][8]; // for tch output headers+bursts
+ pmt::pmt_t d_bursts_sacch_dl[4]; // for sacch output bursts
+
+ // Uplink
+ uint32_t d_frame_numbers_ul[3][8]; // for checking consecutive frame numbers of tch
+ uint32_t d_frame_numbers_sacch_ul[4]; // for checking consecutive frame numbers of sacch
+ pmt::pmt_t d_bursts_ul[3][8]; // for tch output headers+bursts
+ pmt::pmt_t d_bursts_sacch_ul[4]; // for sacch output bursts
+
+ void sacch_tch_demapper(uint32_t fn_mod13, u_int32_t fn_mod26, uint32_t frame_nr, pmt::pmt_t *d_bursts_sacch,
+ uint32_t *d_frame_numbers_sacch, pmt::pmt_t d_bursts[3][8],
+ uint32_t d_frame_numbers[3][8], pmt::pmt_t msg_out);
+
+ void filter_tch_chans(pmt::pmt_t msg);
+
+ public:
+ tch_h_chans_demapper_impl(unsigned int timeslot_nr, unsigned int tch_h_channel);
+ ~tch_h_chans_demapper_impl();
+ };
+
+ } // namespace gsm
+} // namespace gr
+
+#endif /* INCLUDED_GSM_TCH_H_CHANS_DEMAPPER_IMPL_H */
+