1 files changed, 57 insertions, 0 deletions
diff --git a/gr-fec/lib/decode_ccsds_27_fb_impl.h b/gr-fec/lib/decode_ccsds_27_fb_impl.h
new file mode 100644
index 0000000000..c02e284e70
--- /dev/null
+++ b/gr-fec/lib/decode_ccsds_27_fb_impl.h
@@ -0,0 +1,57 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2012 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio 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.
+ *
+ * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef INCLUDED_FEC_DECODE_CCSDS_27_FB_IMPL_H
+#define INCLUDED_FEC_DECODE_CCSDS_27_FB_IMPL_H
+
+#include <fec/decode_ccsds_27_fb.h>
+
+extern "C" {
+#include "viterbi/viterbi.h"
+}
+
+namespace gr {
+  namespace fec {
+
+    class FEC_API decode_ccsds_27_fb_impl : public decode_ccsds_27_fb
+    {
+    private:
+      // Viterbi state
+      int d_mettab[2][256];
+      struct viterbi_state d_state0[64];
+      struct viterbi_state d_state1[64];
+      unsigned char d_viterbi_in[16];
+      
+      int d_count;
+
+    public:
+      decode_ccsds_27_fb_impl();
+
+      int work(int noutput_items,
+	       gr_vector_const_void_star &input_items,
+	       gr_vector_void_star &output_items);
+    };
+
+  } /* namespace fec */
+} /* namespace gr */
+
+#endif /* INCLUDED_FEC_DECODE_CCSDS_27_FB_IMPL_H */