merged developer branch trondeau/cvsd -r4801:4904 to add CVSD vocoder and example code

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@4906 221aa14e-8319-0410-a670-987f0aec2ac5

1 files changed, 85 insertions, 0 deletions

diff --git a/gr-cvsd-vocoder/src/lib/cvsd_vocoder.i b/gr-cvsd-vocoder/src/lib/cvsd_vocoder.i
new file mode 100644
index 000000000..5e618187f
--- /dev/null
+++ b/gr-cvsd-vocoder/src/lib/cvsd_vocoder.i
@@ -0,0 +1,85 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2007 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., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+%feature("autodoc","1");
+%include "exception.i"
+%import "gnuradio.i"
+
+%{
+#include "gnuradio_swig_bug_workaround.h"	// mandatory bug fix
+#include "cvsd_encode_sb.h"
+#include "cvsd_decode_bs.h"
+#include <stdexcept>
+%}
+
+GR_SWIG_BLOCK_MAGIC(cvsd,encode_sb);
+
+cvsd_encode_sb_sptr cvsd_make_encode_sb (short min_step=10,
+					 short max_step=1280,
+					 double step_decay=0.9990234375,
+					 double accum_decay= 0.96875,
+					 int K=32,
+					 int J=4,
+					 short pos_accum_max=32767,
+					 short neg_accum_max=-32767);
+
+class cvsd_encode_sb : public gr_sync_decimator
+{
+private:
+  cvsd_encode_sb (short min_step, short max_step, double step_decay,
+		  double accum_decay, int K, int J,
+		  short pos_accum_max, short neg_accum_max);
+  
+
+ public:
+  short min_step() { return d_min_step; }
+  short max_step() { return d_max_step; }
+  double step_decay() { return d_step_decay; }
+  double accum_decay() { return d_accum_decay; }
+  int K() { return d_K; }
+  int J() { return d_J; }
+  short pos_accum_max() { return d_pos_accum_max; }
+  short neg_accum_max() { return d_neg_accum_max; }
+};
+
+// ----------------------------------------------------------------
+
+GR_SWIG_BLOCK_MAGIC(cvsd,decode_bs);
+
+cvsd_decode_bs_sptr cvsd_make_decode_bs (short min_step=10,
+					 short max_step=1280,
+					 double step_decay=0.9990234375,
+					 double accum_decay= 0.96875,
+					 int K=32,
+					 int J=4,
+					 short pos_accum_max=32767,
+					 short neg_accum_max=-32767);
+
+class cvsd_decode_bs : public gr_sync_interpolator
+{
+private:
+  cvsd_decode_bs (short min_step, short max_step, double step_decay,
+		  double accum_decay, int K, int J,
+		  short pos_accum_max, short neg_accum_max);
+  
+ public:
+};