1 files changed, 49 insertions, 0 deletions
diff --git a/lib/receiver/time_sample_ref.h b/lib/receiver/time_sample_ref.h
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+++ b/lib/receiver/time_sample_ref.h
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+/* -*- c++ -*- */
+/*
+ * @file
+ * @author (C) 2017 by 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_TIME_SAMPLE_REF_IMPL_H
+#define INCLUDED_TIME_SAMPLE_REF_IMPL_H
+
+#include <stdint.h>
+#include <grgsm/misc_utils/time_spec.h>
+
+namespace gr {
+  namespace gsm {
+    /*
+    Class for storing time reference and for conversions time<->sample number 
+    */
+    class time_sample_ref
+    {
+     private:
+        double d_samp_rate;
+        time_spec_t d_last_rx_time;
+        uint64_t d_current_start_offset;
+     public:
+        time_sample_ref(double samp_rate);
+        ~time_sample_ref();
+        void update(time_spec_t last_rx_time, uint64_t current_start_offset);
+        time_spec_t offset_to_time(uint64_t offset);
+        uint64_t time_to_offset(time_spec_t time);
+    };
+  } // namespace gsm
+} // namespace gr
+#endif// INCLUDED_TIME_SAMPLE_REF_IMPL_H