Houston, we have a trunk.

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3122 221aa14e-8319-0410-a670-987f0aec2ac5

1 files changed, 59 insertions, 0 deletions

diff --git a/gr-error-correcting-codes/src/lib/libecc/decoder.h b/gr-error-correcting-codes/src/lib/libecc/decoder.h
new file mode 100644
index 000000000..76a24b20a
--- /dev/null
+++ b/gr-error-correcting-codes/src/lib/libecc/decoder.h
@@ -0,0 +1,59 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2006 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 2, 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef INCLUDED_DECODER_H
+#define INCLUDED_DECODER_H
+
+#include "code_types.h"
+
+// the 'decoder' class is a virtual class upon which all decoder types
+// can be built.
+
+class decoder
+{
+public:
+  decoder () {};
+  virtual ~decoder () {};
+
+  virtual size_t compute_n_input_metrics (size_t n_output_bits) = 0;
+  virtual size_t compute_n_output_bits (size_t n_input_metrics) = 0;
+  virtual size_t decode (const char** in_buf,
+			 char** out_buf,
+			 size_t n_bits_to_output);
+  virtual size_t decode (const char** in_buf,
+			 size_t n_metrics_to_input,
+			 char** out_buf);
+
+protected:
+  virtual void decode_private (const char** in_buf, char** out_buf) = 0;
+  virtual char get_next_input (const char** in_buf, size_t code_input_n) = 0;
+  virtual void output_bit (char t_out_bit, char** out_buf,
+			   size_t t_output_stream) = 0;
+
+  size_t d_block_size_bits, d_n_code_inputs, d_n_code_outputs;
+  size_t d_n_dec_bits;
+  size_t d_in_buf_ndx, d_out_buf_ndx;
+  size_t d_in_bit_shift, d_out_bit_shift;
+  size_t d_n_input_metrics_left, d_n_output_bits_left;
+};
+
+#endif /* INCLUDED_DECODER_H */