gr-vocoder: added G.723 24K ADPCM encoder, decoder, and audio loopback example

12 files changed, 407 insertions, 0 deletions

diff --git a/gr-vocoder/examples/Makefile.am b/gr-vocoder/examples/Makefile.am
index da1d87b80..24c17126c 100644
--- a/gr-vocoder/examples/Makefile.am
+++ b/gr-vocoder/examples/Makefile.am
@@ -28,5 +28,6 @@ dist_ourdata_SCRIPTS = \
 	codec2_audio_loopback.py \
 	cvsd_audio_loopback.py \
 	g721_audio_loopback.py \
+	g723_24_audio_loopback.py \
 	gsm_audio_loopback.py \
 	ulaw_audio_loopback.py
diff --git a/gr-vocoder/examples/g723_24_audio_loopback.py b/gr-vocoder/examples/g723_24_audio_loopback.py
new file mode 100755
index 000000000..f125282dc
--- /dev/null
+++ b/gr-vocoder/examples/g723_24_audio_loopback.py
@@ -0,0 +1,45 @@
+#!/usr/bin/env python
+#
+# 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.
+# 
+
+from gnuradio import gr
+from gnuradio import audio
+from gnuradio import vocoder
+
+def build_graph():
+    tb = gr.top_block()
+    src = audio.source(8000)
+    src_scale = gr.multiply_const_ff(32767)
+    f2s = gr.float_to_short ()
+    enc = vocoder.g723_24_encode_sb()
+    dec = vocoder.g723_24_decode_bs()
+    s2f = gr.short_to_float ()
+    sink_scale = gr.multiply_const_ff(1.0/32767.)
+    sink = audio.sink(8000)
+    tb.connect(src, src_scale, f2s, enc, dec, s2f, sink_scale, sink)
+    return tb
+
+if __name__ == '__main__':
+    tb = build_graph()
+    tb.start()
+    raw_input ('Press Enter to exit: ')
+    tb.stop()
+    tb.wait()
diff --git a/gr-vocoder/include/Makefile.am b/gr-vocoder/include/Makefile.am
index 8298ec6e0..4a970a6ed 100644
--- a/gr-vocoder/include/Makefile.am
+++ b/gr-vocoder/include/Makefile.am
@@ -31,6 +31,8 @@ grinclude_HEADERS = \
 	vocoder_cvsd_encode_sb.h \
 	vocoder_g721_decode_bs.h \
 	vocoder_g721_encode_sb.h \
+	vocoder_g723_24_decode_bs.h \
+	vocoder_g723_24_encode_sb.h \
 	vocoder_gsm_fr_decode_ps.h \
 	vocoder_gsm_fr_encode_sp.h \
 	vocoder_ulaw_decode_bs.h \
diff --git a/gr-vocoder/include/vocoder_g723_24_decode_bs.h b/gr-vocoder/include/vocoder_g723_24_decode_bs.h
new file mode 100644
index 000000000..8ca94f253
--- /dev/null
+++ b/gr-vocoder/include/vocoder_g723_24_decode_bs.h
@@ -0,0 +1,44 @@
+/* -*- 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.
+ */
+
+#ifndef INCLUDED_VOCODER_G723_24_DECODE_BS_H
+#define INCLUDED_VOCODER_G723_24_DECODE_BS_H
+
+#include <gr_sync_block.h>
+
+class vocoder_g723_24_decode_bs;
+
+typedef boost::shared_ptr<vocoder_g723_24_decode_bs> vocoder_g723_24_decode_bs_sptr;
+
+vocoder_g723_24_decode_bs_sptr vocoder_make_g723_24_decode_bs();
+
+/*!
+ * \brief This block performs g723_24 audio decoding. 
+ *
+ * \ingroup vocoder_blk
+ */
+
+class vocoder_g723_24_decode_bs : virtual public gr_sync_block
+{
+};
+
+#endif /* INCLUDED_VOCODER_G723_24_DECODE_BS_H */
diff --git a/gr-vocoder/include/vocoder_g723_24_encode_sb.h b/gr-vocoder/include/vocoder_g723_24_encode_sb.h
new file mode 100644
index 000000000..b55229980
--- /dev/null
+++ b/gr-vocoder/include/vocoder_g723_24_encode_sb.h
@@ -0,0 +1,44 @@
+/* -*- 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.
+ */
+
+#ifndef INCLUDED_VOCODER_G723_24_ENCODE_SB_H
+#define INCLUDED_VOCODER_G723_24_ENCODE_SB_H
+
+#include <gr_sync_block.h>
+
+class vocoder_g723_24_encode_sb;
+
+typedef boost::shared_ptr<vocoder_g723_24_encode_sb> vocoder_g723_24_encode_sb_sptr;
+
+vocoder_g723_24_encode_sb_sptr vocoder_make_g723_24_encode_sb();
+
+/*!
+ * \brief This block performs g723_24 audio encoding. 
+ *
+ * \ingroup vocoder_blk
+ */
+
+class vocoder_g723_24_encode_sb : virtual public gr_sync_block
+{
+};
+
+#endif /* INCLUDED_VOCODER_G723_24_ENCODE_SB_H */
diff --git a/gr-vocoder/lib/Makefile.am b/gr-vocoder/lib/Makefile.am
index 49959529a..d9e12c6a2 100644
--- a/gr-vocoder/lib/Makefile.am
+++ b/gr-vocoder/lib/Makefile.am
@@ -37,6 +37,8 @@ libgnuradio_vocoder_la_SOURCES = \
 	vocoder_cvsd_encode_sb.cc \
 	vocoder_g721_decode_bs.cc \
 	vocoder_g721_encode_sb.cc \
+	vocoder_g723_24_decode_bs.cc \
+	vocoder_g723_24_encode_sb.cc \
 	vocoder_gsm_fr_decode_ps.cc \
 	vocoder_gsm_fr_encode_sp.cc \
 	vocoder_ulaw_decode_bs.cc \
diff --git a/gr-vocoder/lib/vocoder_g723_24_decode_bs.cc b/gr-vocoder/lib/vocoder_g723_24_decode_bs.cc
new file mode 100644
index 000000000..2ea036c58
--- /dev/null
+++ b/gr-vocoder/lib/vocoder_g723_24_decode_bs.cc
@@ -0,0 +1,81 @@
+/* -*- 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_g723_24_decode_bs.h>
+#include <gr_io_signature.h>
+#include <limits.h>
+
+extern "C" {
+#include "g7xx/g72x.h"
+}
+
+class vocoder_g723_24_decode_bs_impl : public vocoder_g723_24_decode_bs
+{
+public:
+
+  vocoder_g723_24_decode_bs_impl();
+  ~vocoder_g723_24_decode_bs_impl();
+
+  int work(int noutput_items,
+	   gr_vector_const_void_star &input_items,
+	   gr_vector_void_star &output_items);
+
+private:
+
+  g72x_state d_state;
+
+};
+
+vocoder_g723_24_decode_bs_sptr vocoder_make_g723_24_decode_bs()
+{
+  return gnuradio::get_initial_sptr(new vocoder_g723_24_decode_bs_impl());
+}
+
+vocoder_g723_24_decode_bs_impl::vocoder_g723_24_decode_bs_impl()
+  : gr_sync_block("vocoder_g723_24_decode_bs",
+		  gr_make_io_signature (1, 1, sizeof (unsigned char)),
+		  gr_make_io_signature (1, 1, sizeof (short)))
+{
+  g72x_init_state(&d_state);
+}
+
+vocoder_g723_24_decode_bs_impl::~vocoder_g723_24_decode_bs_impl()
+{
+}
+
+int 
+vocoder_g723_24_decode_bs_impl::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] = g723_24_decoder(in[i], AUDIO_ENCODING_LINEAR, &d_state);
+  
+  return noutput_items;
+}
diff --git a/gr-vocoder/lib/vocoder_g723_24_encode_sb.cc b/gr-vocoder/lib/vocoder_g723_24_encode_sb.cc
new file mode 100644
index 000000000..7e6914223
--- /dev/null
+++ b/gr-vocoder/lib/vocoder_g723_24_encode_sb.cc
@@ -0,0 +1,81 @@
+/* -*- 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_g723_24_encode_sb.h>
+#include <gr_io_signature.h>
+#include <limits.h>
+
+extern "C" {
+#include "g7xx/g72x.h"
+}
+
+class vocoder_g723_24_encode_sb_impl : public vocoder_g723_24_encode_sb
+{
+public:
+
+  vocoder_g723_24_encode_sb_impl();
+  ~vocoder_g723_24_encode_sb_impl();
+
+  int work(int noutput_items,
+	   gr_vector_const_void_star &input_items,
+	   gr_vector_void_star &output_items);
+
+private:
+
+  g72x_state d_state;
+
+};
+
+vocoder_g723_24_encode_sb_sptr vocoder_make_g723_24_encode_sb()
+{
+  return gnuradio::get_initial_sptr(new vocoder_g723_24_encode_sb_impl());
+}
+
+vocoder_g723_24_encode_sb_impl::vocoder_g723_24_encode_sb_impl()
+  : gr_sync_block("vocoder_g723_24_encode_sb",
+		  gr_make_io_signature (1, 1, sizeof (short)),
+		  gr_make_io_signature (1, 1, sizeof (unsigned char)))
+{
+  g72x_init_state(&d_state);
+}
+
+vocoder_g723_24_encode_sb_impl::~vocoder_g723_24_encode_sb_impl()
+{
+}
+
+int 
+vocoder_g723_24_encode_sb_impl::work(int noutput_items,
+				     gr_vector_const_void_star &input_items,
+				     gr_vector_void_star &output_items)
+{
+  const short *in = (const short *)input_items[0];
+  unsigned char *out = (unsigned char *)output_items[0];
+
+  for(int i = 0; i < noutput_items; i++)
+    out[i] = g723_24_encoder(in[i], AUDIO_ENCODING_LINEAR, &d_state);
+  
+  return noutput_items;
+}
diff --git a/gr-vocoder/python/qa_g723_24_vocoder.py b/gr-vocoder/python/qa_g723_24_vocoder.py
new file mode 100755
index 000000000..ccf215f46
--- /dev/null
+++ b/gr-vocoder/python/qa_g723_24_vocoder.py
@@ -0,0 +1,39 @@
+#!/usr/bin/env python
+#
+# 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.
+# 
+
+from gnuradio import gr, gr_unittest
+from vocoder_swig import *
+
+class test_g723_24_vocoder (gr_unittest.TestCase):
+
+    def setUp (self):
+        self.tb = gr.top_block()
+        
+    def tearDown (self):
+        self.tb = None
+
+    def test001_module_load (self):
+        enc = g723_24_encode_sb();
+        dec = g723_24_decode_bs();
+
+if __name__ == '__main__':
+    gr_unittest.run(test_g723_24_vocoder, "test_g723_24_vocoder.xml")
diff --git a/gr-vocoder/swig/vocoder_g723_24_decode_bs.i b/gr-vocoder/swig/vocoder_g723_24_decode_bs.i
new file mode 100644
index 000000000..41548059f
--- /dev/null
+++ b/gr-vocoder/swig/vocoder_g723_24_decode_bs.i
@@ -0,0 +1,33 @@
+/* -*- 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.
+ */
+
+%{
+#include "vocoder_g723_24_decode_bs.h"
+%}
+
+GR_SWIG_BLOCK_MAGIC(vocoder,g723_24_decode_bs);
+
+vocoder_g723_24_decode_bs_sptr vocoder_make_g723_24_decode_bs();
+
+class vocoder_g723_24_decode_bs : public gr_sync_block
+{
+};
diff --git a/gr-vocoder/swig/vocoder_g723_24_encode_sb.i b/gr-vocoder/swig/vocoder_g723_24_encode_sb.i
new file mode 100644
index 000000000..7165a8a82
--- /dev/null
+++ b/gr-vocoder/swig/vocoder_g723_24_encode_sb.i
@@ -0,0 +1,33 @@
+/* -*- 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.
+ */
+
+%{
+#include "vocoder_g723_24_encode_sb.h"
+%}
+
+GR_SWIG_BLOCK_MAGIC(vocoder,g723_24_encode_sb);
+
+vocoder_g723_24_encode_sb_sptr vocoder_make_g723_24_encode_sb();
+
+class vocoder_g723_24_encode_sb : public gr_sync_block
+{
+};
diff --git a/gr-vocoder/swig/vocoder_swig.i b/gr-vocoder/swig/vocoder_swig.i
index 30e36bfb4..cb89776ca 100644
--- a/gr-vocoder/swig/vocoder_swig.i
+++ b/gr-vocoder/swig/vocoder_swig.i
@@ -30,6 +30,8 @@
 %include "vocoder_cvsd_encode_sb.i"
 %include "vocoder_g721_decode_bs.i"
 %include "vocoder_g721_encode_sb.i"
+%include "vocoder_g723_24_decode_bs.i"
+%include "vocoder_g723_24_encode_sb.i"
 %include "vocoder_gsm_fr_decode_ps.i"
 %include "vocoder_gsm_fr_encode_sp.i"
 %include "vocoder_ulaw_decode_bs.i"