1 files changed, 17 insertions, 8 deletions
diff --git a/gr-digital/lib/ofdm_cyclic_prefixer_impl.h b/gr-digital/lib/ofdm_cyclic_prefixer_impl.h
index 50b05f95d4..4e4cab5ddd 100644
--- a/gr-digital/lib/ofdm_cyclic_prefixer_impl.h
+++ b/gr-digital/lib/ofdm_cyclic_prefixer_impl.h
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2013 Free Software Foundation, Inc.
+ * Copyright 2013, 2018 Free Software Foundation, Inc.
  *
  * This file is part of GNU Radio
  *
@@ -24,6 +24,7 @@
 #define INCLUDED_DIGITAL_OFDM_CYCLIC_PREFIXER_IMPL_H
 
 #include <gnuradio/digital/ofdm_cyclic_prefixer.h>
+#include <vector>
 
 namespace gr {
 namespace digital {
@@ -31,26 +32,34 @@ namespace digital {
 class ofdm_cyclic_prefixer_impl : public ofdm_cyclic_prefixer
 {
 private:
-    size_t d_fft_len;
-    //! FFT length + CP length in samples
-    size_t d_output_size;
-    //! Length of the cyclic prefix in samples
-    int d_cp_size;
+    //! FFT length
+    int d_fft_len;
+    //!  State, that determines the current output length used.
+    unsigned d_state;
+    //! Variable being initialized with the largest CP.
+    int d_cp_max;
+    //! Variable being initialized with the smallest CP.
+    int d_cp_min;
     //! Length of pulse rolloff in samples
     int d_rolloff_len;
+    //! Vector, that holds different CP lengths
+    std::vector<int> d_cp_lengths;
     //! Buffers the up-flank (at the beginning of the cyclic prefix)
     std::vector<float> d_up_flank;
     //! Buffers the down-flank (which trails the symbol)
     std::vector<float> d_down_flank;
+    //! Vector, that holds tail of the predecessor symbol.
     std::vector<gr_complex> d_delay_line; // We do this explicitly to avoid outputting
                                           // zeroes (i.e. no history!)
+    //! Holds the length tag key.
+    const std::string d_len_tag_key;
 
 protected:
     int calculate_output_stream_length(const gr_vector_int& ninput_items);
 
 public:
-    ofdm_cyclic_prefixer_impl(size_t input_size,
-                              size_t output_size,
+    ofdm_cyclic_prefixer_impl(int fft_len,
+                              const std::vector<int>& cp_lengths,
                               int rolloff_len,
                               const std::string& len_tag_key);
     ~ofdm_cyclic_prefixer_impl();