1 files changed, 65 insertions, 0 deletions
diff --git a/gr-vocoder/lib/vocoder_alaw_decode_bs.cc b/gr-vocoder/lib/vocoder_alaw_decode_bs.cc
new file mode 100644
index 000000000..7ffdddd81
--- /dev/null
+++ b/gr-vocoder/lib/vocoder_alaw_decode_bs.cc
@@ -0,0 +1,65 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2011 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <vocoder_alaw_decode_bs.h>
+#include <gr_io_signature.h>
+#include <limits.h>
+
+extern "C" {
+#include "g7xx/g72x.h"
+}
+
+vocoder_alaw_decode_bs_sptr vocoder_make_alaw_decode_bs()
+{
+  return gnuradio::get_initial_sptr(new vocoder_alaw_decode_bs());
+}
+
+vocoder_alaw_decode_bs::vocoder_alaw_decode_bs()
+  : gr_sync_block("vocoder_alaw_decode_bs",
+		  gr_make_io_signature (1, 1, sizeof (unsigned char)),
+		  gr_make_io_signature (1, 1, sizeof (short)))
+{
+}
+
+vocoder_alaw_decode_bs::~vocoder_alaw_decode_bs()
+{
+}
+
+
+
+int 
+vocoder_alaw_decode_bs::work(int noutput_items,
+			     gr_vector_const_void_star &input_items,
+			     gr_vector_void_star &output_items)
+{
+  const unsigned char *in = (const unsigned char *)input_items[0];
+  short *out = (short *)output_items[0];
+
+  for(int i = 0; i < noutput_items; i++)
+    out[i] = alaw2linear(in[i]);
+  
+  return noutput_items;
+}