blocks: converting blocks to v3.7 style in gr-blocks.

delay, rms, unpacked_to_packed, packed_to_unpacked

28 files changed, 2027 insertions, 4 deletions

diff --git a/gr-blocks/grc/blocks_block_tree.xml b/gr-blocks/grc/blocks_block_tree.xml
index 797b3dbc5..6b17078cd 100644
--- a/gr-blocks/grc/blocks_block_tree.xml
+++ b/gr-blocks/grc/blocks_block_tree.xml
@@ -49,6 +49,7 @@
 		<block>blocks_conjugate_cc</block>
 		<block>blocks_integrate_xx</block>
 		<block>blocks_nlog10_ff</block>
+                <block>blocks_rms_xx</block>
 	</cat>
 	<cat>
 		<name>Boolean Operations (New) </name>
@@ -82,7 +83,10 @@
 	</cat>
 	<cat>
 	        <name>Stream Operations (New) </name>
-		<block>blocks_deinterleave</block>
+                <block>blocks_delay</block>
+                <block>blocks_packed_to_unpacked_xx</block>
+                <block>blocks_unpacked_to_packed_xx</block>
+                <block>blocks_deinterleave</block>
 		<block>blocks_interleave</block>
 		<block>blocks_keep_m_in_n</block>
 		<block>blocks_keep_one_in_n</block>
diff --git a/gr-blocks/grc/blocks_delay.xml b/gr-blocks/grc/blocks_delay.xml
new file mode 100644
index 000000000..a7c48c4dc
--- /dev/null
+++ b/gr-blocks/grc/blocks_delay.xml
@@ -0,0 +1,75 @@
+<?xml version="1.0"?>
+<!--
+###################################################
+##Delay
+###################################################
+ -->
+<block>
+	<name>Delay</name>
+	<key>blocks_delay</key>
+	<import>from gnuradio import blocks</import>
+	<make>blocks.delay($type.size*$vlen, $delay)</make>
+	<callback>set_dly($delay)</callback>
+	<param>
+		<name>Type</name>
+		<key>type</key>
+		<type>enum</type>
+		<option>
+			<name>Complex</name>
+			<key>complex</key>
+			<opt>size:gr.sizeof_gr_complex</opt>
+		</option>
+		<option>
+			<name>Float</name>
+			<key>float</key>
+			<opt>size:gr.sizeof_float</opt>
+		</option>
+		<option>
+			<name>Int</name>
+			<key>int</key>
+			<opt>size:gr.sizeof_int</opt>
+		</option>
+		<option>
+			<name>Short</name>
+			<key>short</key>
+			<opt>size:gr.sizeof_short</opt>
+		</option>
+		<option>
+			<name>Byte</name>
+			<key>byte</key>
+			<opt>size:gr.sizeof_char</opt>
+		</option>
+	</param>
+	<param>
+		<name>Delay</name>
+		<key>delay</key>
+		<value>0</value>
+		<type>int</type>
+	</param>
+	<param>
+		<name>Num Ports</name>
+		<key>num_ports</key>
+		<value>1</value>
+		<type>int</type>
+	</param>
+	<param>
+		<name>Vec Length</name>
+		<key>vlen</key>
+		<value>1</value>
+		<type>int</type>
+	</param>
+	<check>$num_ports &gt; 0</check>
+	<check>$vlen &gt; 0</check>
+	<sink>
+		<name>in</name>
+		<type>$type</type>
+		<vlen>$vlen</vlen>
+		<nports>$num_ports</nports>
+	</sink>
+	<source>
+		<name>out</name>
+		<type>$type</type>
+		<vlen>$vlen</vlen>
+		<nports>$num_ports</nports>
+	</source>
+</block>
diff --git a/gr-blocks/grc/blocks_packed_to_unpacked_xx.xml b/gr-blocks/grc/blocks_packed_to_unpacked_xx.xml
new file mode 100644
index 000000000..b236a38db
--- /dev/null
+++ b/gr-blocks/grc/blocks_packed_to_unpacked_xx.xml
@@ -0,0 +1,68 @@
+<?xml version="1.0"?>
+<!--
+###################################################
+##Packed to Unpacked
+###################################################
+ -->
+<block>
+	<name>Packed to Unpacked</name>
+	<key>blocks_packed_to_unpacked_xx</key>
+	<import>from gnuradio import blocks</import>
+	<make>blocks.packed_to_unpacked_$(type.fcn)($bits_per_chunk, $endianness)</make>
+	<param>
+		<name>Type</name>
+		<key>type</key>
+		<type>enum</type>
+		<option>
+			<name>Int</name>
+			<key>int</key>
+			<opt>fcn:ii</opt>
+		</option>
+		<option>
+			<name>Short</name>
+			<key>short</key>
+			<opt>fcn:ss</opt>
+		</option>
+		<option>
+			<name>Byte</name>
+			<key>byte</key>
+			<opt>fcn:bb</opt>
+		</option>
+	</param>
+	<param>
+		<name>Bits per Chunk</name>
+		<key>bits_per_chunk</key>
+		<value>2</value>
+		<type>int</type>
+	</param>
+	<param>
+		<name>Endianness</name>
+		<key>endianness</key>
+		<type>int</type>
+		<option>
+			<name>MSB</name>
+			<key>gr.GR_MSB_FIRST</key>
+		</option>
+		<option>
+			<name>LSB</name>
+			<key>gr.GR_LSB_FIRST</key>
+		</option>
+	</param>
+	<param>
+		<name>Num Ports</name>
+		<key>num_ports</key>
+		<value>1</value>
+		<type>int</type>
+	</param>
+	<check>$num_ports &gt; 0</check>
+	<sink>
+		<name>in</name>
+		<type>$type</type>
+		<nports>$num_ports</nports>
+	</sink>
+	<source>
+		<name>out</name>
+		<type>$type</type>
+		<nports>$num_ports</nports>
+	</source>
+</block>
diff --git a/gr-blocks/grc/blocks_rms_xx.xml b/gr-blocks/grc/blocks_rms_xx.xml
new file mode 100644
index 000000000..0ae09139a
--- /dev/null
+++ b/gr-blocks/grc/blocks_rms_xx.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0"?>
+<!--
+###################################################
+##RMS
+###################################################
+ -->
+<block>
+	<name>RMS</name>
+	<key>blocks_rms_xx</key>
+	<import>from gnuradio import blocks</import>
+	<make>blocks.rms_$(type.fcn)f($alpha)</make>
+	<callback>set_alpha($alpha)</callback>
+	<param>
+		<name>Input Type</name>
+		<key>type</key>
+		<type>enum</type>
+		<option>
+			<name>Complex</name>
+			<key>complex</key>
+			<opt>fcn:c</opt>
+		</option>
+		<option>
+			<name>Float</name>
+			<key>float</key>
+			<opt>fcn:f</opt>
+		</option>
+	</param>
+	<param>
+		<name>Alpha</name>
+		<key>alpha</key>
+                <value>0.0001</value>
+		<type>real</type>
+	</param>
+	<sink>
+		<name>in</name>
+		<type>$type</type>
+	</sink>
+	<source>
+		<name>out</name>
+		<type>float</type>
+	</source>
+</block>
diff --git a/gr-blocks/grc/blocks_unpacked_to_packed_xx.xml b/gr-blocks/grc/blocks_unpacked_to_packed_xx.xml
new file mode 100644
index 000000000..d27dc9bfc
--- /dev/null
+++ b/gr-blocks/grc/blocks_unpacked_to_packed_xx.xml
@@ -0,0 +1,68 @@
+<?xml version="1.0"?>
+<!--
+###################################################
+##Unpacked to Packed
+###################################################
+ -->
+<block>
+	<name>Unpacked to Packed</name>
+	<key>blocks_unpacked_to_packed_xx</key>
+	<import>from gnuradio import blocks</import>
+	<make>blocks.unpacked_to_packed_$(type.fcn)($bits_per_chunk, $endianness)</make>
+	<param>
+		<name>Type</name>
+		<key>type</key>
+		<type>enum</type>
+		<option>
+			<name>Int</name>
+			<key>int</key>
+			<opt>fcn:ii</opt>
+		</option>
+		<option>
+			<name>Short</name>
+			<key>short</key>
+			<opt>fcn:ss</opt>
+		</option>
+		<option>
+			<name>Byte</name>
+			<key>byte</key>
+			<opt>fcn:bb</opt>
+		</option>
+	</param>
+	<param>
+		<name>Bits per Chunk</name>
+		<key>bits_per_chunk</key>
+		<value>2</value>
+		<type>int</type>
+	</param>
+	<param>
+		<name>Endianness</name>
+		<key>endianness</key>
+		<type>int</type>
+		<option>
+			<name>MSB</name>
+			<key>gr.GR_MSB_FIRST</key>
+		</option>
+		<option>
+			<name>LSB</name>
+			<key>gr.GR_LSB_FIRST</key>
+		</option>
+	</param>
+	<param>
+		<name>Num Ports</name>
+		<key>num_ports</key>
+		<value>1</value>
+		<type>int</type>
+	</param>
+	<check>$num_ports &gt; 0</check>
+	<sink>
+		<name>in</name>
+		<type>$type</type>
+		<nports>$num_ports</nports>
+	</sink>
+	<source>
+		<name>out</name>
+		<type>$type</type>
+		<nports>$num_ports</nports>
+	</source>
+</block>
diff --git a/gr-blocks/include/blocks/CMakeLists.txt b/gr-blocks/include/blocks/CMakeLists.txt
index 37790b7cf..a6608696a 100644
--- a/gr-blocks/include/blocks/CMakeLists.txt
+++ b/gr-blocks/include/blocks/CMakeLists.txt
@@ -78,6 +78,8 @@ expand_h(not_XX             bb ss ii)
 expand_h(or_XX              bb ss ii)
 expand_h(sub_XX             ss ii ff cc)
 expand_h(xor_XX             bb ss ii)
+expand_h(packed_to_unpacked_XX bb ss ii)
+expand_h(unpacked_to_packed_XX bb ss ii)
 
 add_custom_target(blocks_generated_includes DEPENDS
     ${generated_includes}
@@ -90,6 +92,7 @@ install(FILES
     ${generated_includes}
     api.h
     count_bits.h
+    log2_const.h
     add_ff.h
     char_to_float.h
     char_to_short.h
@@ -102,6 +105,7 @@ install(FILES
     complex_to_arg.h
     conjugate_cc.h
     deinterleave.h
+    delay.h
     file_source.h
     file_meta_sink.h
     file_meta_source.h
@@ -123,6 +127,8 @@ install(FILES
     nlog10_ff.h
     patterned_interleaver.h
     repeat.h
+    rms_cf.h
+    rms_ff.h
     short_to_char.h
     short_to_float.h
     stream_mux.h
diff --git a/gr-blocks/include/blocks/delay.h b/gr-blocks/include/blocks/delay.h
new file mode 100644
index 000000000..2a59fa0fc
--- /dev/null
+++ b/gr-blocks/include/blocks/delay.h
@@ -0,0 +1,57 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2007,2012-2013 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_BLOCKS_DELAY_H
+#define INCLUDED_BLOCKS_DELAY_H
+
+#include <blocks/api.h>
+#include <gr_block.h>
+
+namespace gr {
+  namespace blocks {
+
+    /*!
+     * \brief delay the input by a certain number of samples
+     * \ingroup misc_blk
+     */
+    class BLOCKS_API delay : virtual public gr_block
+    {
+    public:
+      // gr::blocks::delay::sptr
+      typedef boost::shared_ptr<delay> sptr;
+
+      /*!
+       * \brief Make a delay block.
+       * \param itemsize size of the data items.
+       * \param delay number of samples to delay stream.
+       */
+      static sptr make(size_t itemsize, int delay);
+
+      virtual int dly() const = 0;
+      virtual void set_dly(int d) = 0;
+    };
+
+  } /* namespace blocks */
+} /* namespace gr */
+
+#endif /* INCLUDED_BLOCKS_DELAY_H */
+
diff --git a/gr-blocks/include/blocks/log2_const.h b/gr-blocks/include/blocks/log2_const.h
new file mode 100644
index 000000000..67d63810f
--- /dev/null
+++ b/gr-blocks/include/blocks/log2_const.h
@@ -0,0 +1,53 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2006,2013 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.
+ */
+
+
+/*
+ * a bit of template hackery...
+ */
+#ifndef INCLUDED_BLOCKS_LOG2_CONST_H
+#define INCLUDED_BLOCKS_LOG2_CONST_H
+
+#include <blocks/api.h>
+#include <assert.h>
+
+namespace gr {
+  namespace blocks {
+
+    template<unsigned int k> static inline int log2_const() { assert(0); return 0; }
+
+    template<> inline int log2_const<1>()   { return 0; }
+    template<> inline int log2_const<2>()   { return 1; }
+    template<> inline int log2_const<4>()   { return 2; }
+    template<> inline int log2_const<8>()   { return 3; }
+    template<> inline int log2_const<16>()  { return 4; }
+    template<> inline int log2_const<32>()  { return 5; }
+    template<> inline int log2_const<64>()  { return 6; }
+    template<> inline int log2_const<128>() { return 7; }
+    template<> inline int log2_const<256>() { return 8; }
+    template<> inline int log2_const<512>() { return 9; }
+    template<> inline int log2_const<1024>(){ return 10; }
+
+  } /* namespace blocks */
+} /* namespace gr */
+
+#endif /* INCLUDED_BLOCKS_LOG2_CONST_H */
diff --git a/gr-blocks/include/blocks/packed_to_unpacked_XX.h.t b/gr-blocks/include/blocks/packed_to_unpacked_XX.h.t
new file mode 100644
index 000000000..9ab8b8bdf
--- /dev/null
+++ b/gr-blocks/include/blocks/packed_to_unpacked_XX.h.t
@@ -0,0 +1,73 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2006,2013 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.
+ */
+
+// @WARNING@
+
+#ifndef @GUARD_NAME@
+#define @GUARD_NAME@
+
+#include <blocks/api.h>
+#include <gr_block.h>
+#include <gr_endianness.h>
+
+namespace gr {
+  namespace blocks {
+
+    /*!
+     * \brief Convert a stream of packed bytes or shorts to stream of unpacked bytes or shorts.
+     * \ingroup converter_blk
+     *
+     * input: stream of @I_TYPE@; output: stream of @O_TYPE@
+     *
+     * This is the inverse of gr::blocks::unpacked_to_packed_XX.
+     *
+     * The bits in the bytes or shorts input stream are grouped into
+     * chunks of \p bits_per_chunk bits and each resulting chunk is
+     * written right- justified to the output stream of bytes or
+     * shorts. All b or 16 bits of the each input bytes or short are
+     * processed. The right thing is done if bits_per_chunk is not a
+     * power of two.
+     *
+     * The combination of gr_packed_to_unpacked_XX_ followed by
+     * gr_chunks_to_symbols_Xf or gr_chunks_to_symbols_Xc handles the
+     * general case of mapping from a stream of bytes or shorts into
+     * arbitrary float or complex symbols.
+     *
+     * \sa gr::blocks::packed_to_unpacked_bb, gr::blocks::unpacked_to_packed_bb,
+     * \sa gr::blocks::packed_to_unpacked_ss, gr::blocks::unpacked_to_packed_ss,
+     * \sa gr::blocks::chunks_to_symbols_bf, gr::blocks::chunks_to_symbols_bc.
+     * \sa gr::blocks::chunks_to_symbols_sf, gr::blocks::chunks_to_symbols_sc.
+     */
+    class BLOCKS_API @NAME@ : virtual public gr_block
+    {
+    public:
+      // gr::blocks::@NAME@::sptr
+      typedef boost::shared_ptr<@NAME@> sptr;
+
+      static sptr make(unsigned int bits_per_chunk,
+                       gr_endianness_t endianness);
+    };
+
+  } /* namespace blocks */
+} /* namespace gr */
+
+#endif /* @GUARD_NAME@ */
diff --git a/gr-blocks/include/blocks/rms_cf.h b/gr-blocks/include/blocks/rms_cf.h
new file mode 100644
index 000000000..e73be6923
--- /dev/null
+++ b/gr-blocks/include/blocks/rms_cf.h
@@ -0,0 +1,54 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2005,2013 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_BLOCKS_RMS_CF_H
+#define INCLUDED_BLOCKS_RMS_CF_H
+
+#include <blocks/api.h>
+#include <gr_sync_block.h>
+
+namespace gr {
+  namespace blocks {
+
+    /*!
+     * \brief RMS average power
+     * \ingroup math_blk
+     */
+    class BLOCKS_API rms_cf : virtual public gr_sync_block
+    {
+    public:
+      // gr::blocks::rms_cf::sptr
+      typedef boost::shared_ptr<rms_cf> sptr;
+
+      /*!
+       * \brief Make an RMS calc. block.
+       * \param alpha gain for running average filter.
+       */
+      static sptr make(double alpha = 0.0001);
+
+      virtual void set_alpha(double alpha) = 0;
+    };
+
+  } /* namespace blocks */
+} /* namespace gr */
+
+#endif /* INCLUDED_BLOCKS_RMS_CF_H */
diff --git a/gr-blocks/include/blocks/rms_ff.h b/gr-blocks/include/blocks/rms_ff.h
new file mode 100644
index 000000000..19fb0016d
--- /dev/null
+++ b/gr-blocks/include/blocks/rms_ff.h
@@ -0,0 +1,53 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2005,2013 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_BLOCKS_RMS_FF_H
+#define INCLUDED_BLOCKS_RMS_FF_H
+
+#include <blocks/api.h>
+#include <gr_sync_block.h>
+
+namespace gr {
+  namespace blocks {
+
+    /*!
+     * \brief RMS average power
+     * \ingroup math_blk
+     */
+    class BLOCKS_API rms_ff : virtual public gr_sync_block
+    {
+    public:
+      // gr::blocks::rms_ff::sptr
+      typedef boost::shared_ptr<rms_ff> sptr;
+
+      /*!
+       * \brief Make an RMS calc. block.
+       * \param alpha gain for running average filter.
+       */
+      static sptr make(double alpha = 0.0001);
+
+      virtual void set_alpha(double alpha) = 0;
+    };
+
+  } /* namespace blocks */
+} /* namespace gr */
+
+#endif /* INCLUDED_BLOCKS_RMS_FF_H */
diff --git a/gr-blocks/include/blocks/unpacked_to_packed_XX.h.t b/gr-blocks/include/blocks/unpacked_to_packed_XX.h.t
new file mode 100644
index 000000000..749f0e00f
--- /dev/null
+++ b/gr-blocks/include/blocks/unpacked_to_packed_XX.h.t
@@ -0,0 +1,72 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2006,2013 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.
+ */
+
+// @WARNING@
+
+#ifndef @GUARD_NAME@
+#define @GUARD_NAME@
+
+#include <blocks/api.h>
+#include <gr_block.h>
+#include <gr_endianness.h>
+
+namespace gr {
+  namespace blocks {
+
+    /*!
+     * \brief Convert a stream of unpacked bytes or shorts into a stream of packed bytes or shorts.
+     * \ingroup converter_blk
+     *
+     * input: stream of @I_TYPE@; output: stream of @O_TYPE@
+     *
+     * This is the inverse of gr::blocks::packed_to_unpacked_XX.
+     *
+     * The low \p bits_per_chunk bits are extracted from each input
+     * byte or short.  These bits are then packed densely into the
+     * output bytes or shorts, such that all 8 or 16 bits of the
+     * output bytes or shorts are filled with valid input bits.  The
+     * right thing is done if bits_per_chunk is not a power of two.
+     *
+     * The combination of gr_packed_to_unpacked_XX followed by
+     * gr_chunks_to_symbols_Xf or gr_chunks_to_symbols_Xc handles the
+     * general case of mapping from a stream of bytes or shorts into
+     * arbitrary float or complex symbols.
+     *
+     * \sa gr::blocks::packed_to_unpacked_bb, gr::blocks::unpacked_to_packed_bb,
+     * \sa gr::blocks::packed_to_unpacked_ss, gr::blocks::unpacked_to_packed_ss,
+     * \sa gr::blocks::chunks_to_symbols_bf, gr::blocks::chunks_to_symbols_bc.
+     * \sa gr::blocks::chunks_to_symbols_sf, gr::blocks::chunks_to_symbols_sc.
+     */
+    class BLOCKS_API @NAME@ : virtual public gr_block
+    {
+    public:
+      // gr::blocks::@NAME@::sptr
+      typedef boost::shared_ptr<@NAME@> sptr;
+
+      static sptr make(unsigned int bits_per_chunk,
+                       gr_endianness_t endianness);
+    };
+
+  } /* namespace blocks */
+} /* namespace gr */
+
+#endif /* @GUARD_NAME@ */
diff --git a/gr-blocks/lib/CMakeLists.txt b/gr-blocks/lib/CMakeLists.txt
index 560a55d57..9b076f696 100644
--- a/gr-blocks/lib/CMakeLists.txt
+++ b/gr-blocks/lib/CMakeLists.txt
@@ -104,6 +104,8 @@ expand_cc_h_impl(not_XX             bb ss ii)
 expand_cc_h_impl(or_XX              bb ss ii)
 expand_cc_h_impl(sub_XX             ss ii ff cc)
 expand_cc_h_impl(xor_XX             bb ss ii)
+expand_cc_h_impl(packed_to_unpacked_XX bb ss ii)
+expand_cc_h_impl(unpacked_to_packed_XX bb ss ii)
 
 ########################################################################
 # Setup the include and linker paths
@@ -139,6 +141,7 @@ list(APPEND gr_blocks_sources
     complex_to_arg_impl.cc
     conjugate_cc_impl.cc
     deinterleave_impl.cc
+    delay_impl.cc
     file_source_impl.cc
     file_meta_sink_impl.cc
     file_meta_source_impl.cc
@@ -163,6 +166,8 @@ list(APPEND gr_blocks_sources
     nlog10_ff_impl.cc
     patterned_interleaver_impl.cc
     repeat_impl.cc
+    rms_cf_impl.cc
+    rms_ff_impl.cc
     short_to_char_impl.cc
     short_to_float_impl.cc
     stream_mux_impl.cc
diff --git a/gr-blocks/lib/delay_impl.cc b/gr-blocks/lib/delay_impl.cc
new file mode 100644
index 000000000..67449aca2
--- /dev/null
+++ b/gr-blocks/lib/delay_impl.cc
@@ -0,0 +1,141 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2007,2010,2012-2013 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 "delay_impl.h"
+#include <gr_io_signature.h>
+#include <string.h>
+
+namespace gr {
+  namespace blocks {
+
+    delay::sptr
+    delay::make(size_t itemsize, int delay)
+    {
+      return gnuradio::get_initial_sptr
+        (new delay_impl(itemsize, delay));
+    }
+
+    delay_impl::delay_impl(size_t itemsize, int delay)
+      : gr_block("delay",
+                 gr_make_io_signature(1, -1, itemsize),
+                 gr_make_io_signature(1, -1, itemsize)),
+        d_itemsize(itemsize)
+    {
+      set_dly(delay);
+      d_delta = 0;
+    }
+
+    delay_impl::~delay_impl()
+    {
+    }
+
+    void
+    delay_impl::forecast(int noutput_items,
+                         gr_vector_int &ninput_items_required)
+    {
+      // make sure all inputs have noutput_items available
+      unsigned ninputs = ninput_items_required.size();
+      for(unsigned i = 0; i < ninputs; i++)
+        ninput_items_required[i] = noutput_items;
+    }
+
+    void
+    delay_impl::set_dly(int d)
+    {
+      // only set a new delta if there is a change in the delay; this
+      // protects from quickly-repeated calls to this function that
+      // would end with d_delta=0.
+      if(d != dly()) {
+        gruel::scoped_lock l(d_mutex_delay);
+        int old = dly();
+        set_history(d+1);
+        d_delta += dly() - old;
+      }
+    }
+
+    int
+    delay_impl::general_work(int noutput_items,
+                             gr_vector_int &ninput_items,
+                             gr_vector_const_void_star &input_items,
+                             gr_vector_void_star &output_items)
+    {
+      gruel::scoped_lock l(d_mutex_delay);
+      assert(input_items.size() == output_items.size());
+
+      const char *iptr;
+      char *optr;
+      int cons, ret;
+
+      // No change in delay; just memcpy ins to outs
+      if(d_delta == 0) {
+        for(size_t i = 0; i < input_items.size(); i++) {
+          iptr = (const char *)input_items[i];
+          optr = (char *)output_items[i];
+          std::memcpy(optr, iptr, noutput_items*d_itemsize);
+        }
+        cons = noutput_items;
+        ret = noutput_items;
+      }
+
+      // Skip over d_delta items on the input
+      else if(d_delta < 0) {
+        int n_to_copy, n_adj;
+        int delta = -d_delta;
+        n_to_copy = std::max(0, noutput_items-delta);
+        n_adj = std::min(delta, noutput_items);
+        for(size_t i = 0; i < input_items.size(); i++) {
+          iptr = (const char *) input_items[i];
+          optr = (char *) output_items[i];
+          std::memcpy(optr, iptr+delta*d_itemsize, n_to_copy*d_itemsize);
+        }
+        cons = noutput_items;
+        ret = n_to_copy;
+        delta -= n_adj;
+        d_delta = -delta;
+      }
+
+      //produce but not consume (inserts zeros)
+      else {  // d_delta > 0
+        int n_from_input, n_padding;
+        n_from_input = std::max(0, noutput_items-d_delta);
+        n_padding = std::min(d_delta, noutput_items);
+        for(size_t i = 0; i < input_items.size(); i++) {
+          iptr = (const char *) input_items[i];
+          optr = (char *) output_items[i];
+          std::memset(optr, 0, n_padding*d_itemsize);
+          std::memcpy(optr, iptr, n_from_input*d_itemsize);
+        }
+        cons = n_from_input;
+        ret = noutput_items;
+        d_delta -= n_padding;
+      }
+
+      consume_each(cons);
+      return ret;
+    }
+
+  } /* namespace blocks */
+} /* namespace gr */
diff --git a/gr-blocks/lib/delay_impl.h b/gr-blocks/lib/delay_impl.h
new file mode 100644
index 000000000..56d971b11
--- /dev/null
+++ b/gr-blocks/lib/delay_impl.h
@@ -0,0 +1,58 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2007,2012-2013 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_GR_DELAY_IMPL_H
+#define INCLUDED_GR_DELAY_IMPL_H
+
+#include <blocks/delay.h>
+#include <gruel/thread.h>
+
+namespace gr {
+  namespace blocks {
+
+    class delay_impl : public delay
+    {
+    private:
+      void forecast(int noutput_items,
+                    gr_vector_int &ninput_items_required);
+
+      size_t d_itemsize;
+      int d_delta;
+      gruel::mutex d_mutex_delay;
+
+    public:
+      delay_impl(size_t itemsize, int delay);
+      ~delay_impl();
+
+      int dly() const { return history()-1; }
+      void set_dly(int d);
+
+      int general_work(int noutput_items,
+                       gr_vector_int &ninput_items,
+                       gr_vector_const_void_star &input_items,
+                       gr_vector_void_star &output_items);
+    };
+
+  } /* namespace blocks */
+} /* namespace gr */
+
+#endif /* INCLUDED_GR_DELAY_IMPL_H */
diff --git a/gr-blocks/lib/packed_to_unpacked_XX_impl.cc.t b/gr-blocks/lib/packed_to_unpacked_XX_impl.cc.t
new file mode 100644
index 000000000..4f34d8347
--- /dev/null
+++ b/gr-blocks/lib/packed_to_unpacked_XX_impl.cc.t
@@ -0,0 +1,147 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2013 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.
+ */
+
+// @WARNING@
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "@NAME_IMPL@.h"
+#include <gr_io_signature.h>
+#include <blocks/log2_const.h>
+#include <assert.h>
+
+namespace gr {
+  namespace blocks {
+
+    static const unsigned int BITS_PER_TYPE = sizeof(@I_TYPE@) * 8;
+    static const unsigned int LOG2_L_TYPE = log2_const<sizeof(@I_TYPE@) * 8>();
+
+    @NAME@::sptr
+    @NAME@::make(unsigned int bits_per_chunk,
+                 gr_endianness_t endianness)
+    {
+      return gnuradio::get_initial_sptr
+        (new @NAME_IMPL@(bits_per_chunk, endianness));
+    }
+
+    @NAME_IMPL@::@NAME_IMPL@(unsigned int bits_per_chunk,
+                             gr_endianness_t endianness)
+    : gr_block("@NAME@",
+               gr_make_io_signature(1, -1, sizeof(@I_TYPE@)),
+               gr_make_io_signature(1, -1, sizeof(@O_TYPE@))),
+      d_bits_per_chunk(bits_per_chunk), d_endianness(endianness), d_index(0)
+    {
+      assert(bits_per_chunk <= BITS_PER_TYPE);
+      assert(bits_per_chunk > 0);
+
+      set_relative_rate((1.0 * BITS_PER_TYPE) / bits_per_chunk);
+    }
+
+    @NAME_IMPL@::~@NAME_IMPL@()
+    {
+    }
+
+    void
+    @NAME_IMPL@::forecast(int noutput_items,
+                          gr_vector_int &ninput_items_required)
+    {
+      int input_required = (int)ceil((d_index + noutput_items * d_bits_per_chunk) 
+                                     / (1.0 * BITS_PER_TYPE));
+      unsigned ninputs = ninput_items_required.size();
+      for(unsigned int i = 0; i < ninputs; i++) {
+        ninput_items_required[i] = input_required;
+        //printf("Forecast wants %d needs %d\n",noutput_items,ninput_items_required[i]);
+      }
+    }
+
+    unsigned int
+    get_bit_le(const @I_TYPE@ *in_vector, unsigned int bit_addr)
+    {
+      @I_TYPE@ x = in_vector[bit_addr >> LOG2_L_TYPE];
+      return (x >> (bit_addr & (BITS_PER_TYPE-1))) & 1;
+    }
+
+    unsigned int
+    get_bit_be(const @I_TYPE@ *in_vector, unsigned int bit_addr)
+    {
+      @I_TYPE@ x = in_vector[bit_addr >> LOG2_L_TYPE];
+      return (x >> ((BITS_PER_TYPE-1) - (bit_addr & (BITS_PER_TYPE-1)))) & 1;
+    }
+
+    int
+    @NAME_IMPL@::general_work(int noutput_items,
+                              gr_vector_int &ninput_items,
+                              gr_vector_const_void_star &input_items,
+                              gr_vector_void_star &output_items)
+    {
+      unsigned int index_tmp = d_index;
+
+      assert(input_items.size() == output_items.size());
+      int nstreams = input_items.size();
+
+      for (int m=0; m < nstreams; m++){
+        const @I_TYPE@ *in = (@I_TYPE@ *)input_items[m];
+        @O_TYPE@ *out = (@O_TYPE@ *)output_items[m];
+        index_tmp = d_index;
+
+        // per stream processing
+
+        switch(d_endianness) {
+        case GR_MSB_FIRST:
+          for(int i = 0; i < noutput_items; i++) {
+            //printf("here msb %d\n",i);
+            @O_TYPE@ x = 0;
+            for(unsigned int j = 0; j < d_bits_per_chunk; j++, index_tmp++)
+              x = (x<<1) | get_bit_be(in, index_tmp);
+            out[i] = x;
+          }
+          break;
+
+        case GR_LSB_FIRST:
+          for(int i = 0; i < noutput_items; i++) {
+            //printf("here lsb %d\n",i);
+            @O_TYPE@ x = 0;
+            for(unsigned int j = 0; j < d_bits_per_chunk; j++, index_tmp++)
+              x = (x<<1) | get_bit_le(in, index_tmp);
+            out[i] = x;
+          }
+          break;
+
+        default:
+          assert(0);
+        }
+
+        //printf("almost got to end\n");
+        assert(ninput_items[m] >= (int)((d_index+(BITS_PER_TYPE-1)) >> LOG2_L_TYPE));
+      }
+
+      d_index = index_tmp;
+      consume_each(d_index >> LOG2_L_TYPE);
+      d_index = d_index & (BITS_PER_TYPE-1);
+      //printf("got to end\n");
+      return noutput_items;
+    }
+
+  } /* namespace blocks */
+} /* namespace gr */
diff --git a/gr-blocks/lib/packed_to_unpacked_XX_impl.h.t b/gr-blocks/lib/packed_to_unpacked_XX_impl.h.t
new file mode 100644
index 000000000..f83496fa7
--- /dev/null
+++ b/gr-blocks/lib/packed_to_unpacked_XX_impl.h.t
@@ -0,0 +1,59 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2006,2013 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.
+ */
+
+// @WARNING@
+
+#ifndef @GUARD_NAME_IMPL@
+#define @GUARD_NAME_IMPL@
+
+#include <blocks/@NAME@.h>
+
+namespace gr {
+  namespace blocks {
+
+    class @NAME_IMPL@ : public @NAME@
+    {
+    private:
+      unsigned int    d_bits_per_chunk;
+      gr_endianness_t d_endianness;
+      unsigned int    d_index;
+
+    public:
+      @NAME_IMPL@(unsigned int bits_per_chunk,
+                  gr_endianness_t endianness);
+      ~@NAME_IMPL@();
+
+      void forecast(int noutput_items,
+                    gr_vector_int &ninput_items_required);
+      int general_work(int noutput_items,
+                       gr_vector_int &ninput_items,
+                       gr_vector_const_void_star &input_items,
+                       gr_vector_void_star &output_items);
+
+      bool check_topology(int ninputs, int noutputs)
+      { return ninputs == noutputs; }
+    };
+
+  } /* namespace blocks */
+} /* namespace gr */
+
+#endif /* @GUARD_NAME_IMPL@ */
diff --git a/gr-blocks/lib/rms_cf_impl.cc b/gr-blocks/lib/rms_cf_impl.cc
new file mode 100644
index 000000000..d956b45f1
--- /dev/null
+++ b/gr-blocks/lib/rms_cf_impl.cc
@@ -0,0 +1,77 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2005,2010,2013 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 "rms_cf_impl.h"
+#include <gr_io_signature.h>
+#include <cmath>
+
+namespace gr {
+  namespace blocks {
+
+    rms_cf::sptr
+    rms_cf::make(double alpha)
+    {
+      return gnuradio::get_initial_sptr
+        (new rms_cf_impl(alpha));
+    }
+
+    rms_cf_impl::rms_cf_impl (double alpha)
+      : gr_sync_block("rms_cf",
+                      gr_make_io_signature(1, 1, sizeof(gr_complex)),
+                      gr_make_io_signature(1, 1, sizeof(float))),
+        d_iir(alpha)
+    {
+    }
+
+    rms_cf_impl::~rms_cf_impl()
+    {
+    }
+
+    void
+    rms_cf_impl::set_alpha(double alpha)
+    {
+      d_iir.set_taps(alpha);
+    }
+
+    int
+    rms_cf_impl::work(int noutput_items,
+                      gr_vector_const_void_star &input_items,
+                      gr_vector_void_star &output_items)
+    {
+      const gr_complex *in = (const gr_complex *)input_items[0];
+      float *out = (float *)output_items[0];
+
+      for(int i = 0; i < noutput_items; i++) {
+        double mag_sqrd = in[i].real()*in[i].real() + in[i].imag()*in[i].imag();
+        double f = d_iir.filter(mag_sqrd);
+        out[i] = sqrt(f);
+      }
+
+      return noutput_items;
+    }
+
+  } /* namespace blocks */
+} /* namespace gr */
diff --git a/gr-blocks/lib/rms_cf_impl.h b/gr-blocks/lib/rms_cf_impl.h
new file mode 100644
index 000000000..438b8549d
--- /dev/null
+++ b/gr-blocks/lib/rms_cf_impl.h
@@ -0,0 +1,56 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2005,2013 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_BLOCKS_RMS_CF_IMPL_H
+#define INCLUDED_BLOCKS_RMS_CF_IMPL_H
+
+#include <blocks/rms_cf.h>
+#include <gr_single_pole_iir.h>
+
+namespace gr {
+  namespace blocks {
+
+    /*!
+     * \brief RMS average power
+     * \ingroup math_blk
+     */
+    class rms_cf_impl : public rms_cf
+    {
+    private:
+      gr_single_pole_iir<double,double,double> d_iir;
+
+    public:
+      rms_cf_impl(double alpha = 0.0001);
+      ~rms_cf_impl();
+
+      void set_alpha(double alpha);
+      
+      int work(int noutput_items,
+               gr_vector_const_void_star &input_items,
+               gr_vector_void_star &output_items);
+
+    };
+
+  } /* namespace blocks */
+} /* namespace gr */
+
+#endif /* INCLUDED_BLOCKS_RMS_CF_IMPL_H */
diff --git a/gr-blocks/lib/rms_ff_impl.cc b/gr-blocks/lib/rms_ff_impl.cc
new file mode 100644
index 000000000..2b8cdc34e
--- /dev/null
+++ b/gr-blocks/lib/rms_ff_impl.cc
@@ -0,0 +1,77 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2005,2010,2013 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 "rms_ff_impl.h"
+#include <gr_io_signature.h>
+#include <cmath>
+
+namespace gr {
+  namespace blocks {
+
+    rms_ff::sptr
+    rms_ff::make(double alpha)
+    {
+      return gnuradio::get_initial_sptr
+        (new rms_ff_impl(alpha));
+    }
+
+    rms_ff_impl::rms_ff_impl(double alpha)
+      : gr_sync_block("rms_ff",
+                      gr_make_io_signature(1, 1, sizeof(float)),
+                      gr_make_io_signature(1, 1, sizeof(float))),
+        d_iir(alpha)
+    {
+    }
+
+    rms_ff_impl::~rms_ff_impl()
+    {
+    }
+
+    void
+    rms_ff_impl::set_alpha(double alpha)
+    {
+      d_iir.set_taps(alpha);
+    }
+
+    int
+    rms_ff_impl::work(int noutput_items,
+                      gr_vector_const_void_star &input_items,
+                      gr_vector_void_star &output_items)
+    {
+      const float *in = (const float *)input_items[0];
+      float *out = (float *)output_items[0];
+
+      for(int i = 0; i < noutput_items; i++) {
+        double mag_sqrd = in[i]*in[i];
+        double f = d_iir.filter(mag_sqrd);
+        out[i] = sqrt(f);
+      }
+
+      return noutput_items;
+    }
+
+  } /* namespace blocks */
+} /* namespace gr */
diff --git a/gr-blocks/lib/rms_ff_impl.h b/gr-blocks/lib/rms_ff_impl.h
new file mode 100644
index 000000000..82ecbda52
--- /dev/null
+++ b/gr-blocks/lib/rms_ff_impl.h
@@ -0,0 +1,55 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2005,2013 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_BLOCKS_RMS_FF_IMPL_H
+#define INCLUDED_BLOCKS_RMS_FF_IMPL_H
+
+#include <blocks/rms_ff.h>
+#include <gr_single_pole_iir.h>
+
+namespace gr {
+  namespace blocks {
+
+    /*!
+     * \brief RMS average power
+     * \ingroup math_blk
+     */
+    class rms_ff_impl : public rms_ff
+    {
+    private:
+      gr_single_pole_iir<double,double,double> d_iir;
+
+    public:
+      rms_ff_impl(double alpha  = 0.0001);
+      ~rms_ff_impl();
+
+      void set_alpha(double alpha);
+
+      int work(int noutput_items,
+               gr_vector_const_void_star &input_items,
+               gr_vector_void_star &output_items);
+    };
+
+  } /* namespace blocks */
+} /* namespace gr */
+
+#endif /* INCLUDED_BLOCKS_RMS_FF_IMPL_H */
diff --git a/gr-blocks/lib/unpacked_to_packed_XX_impl.cc.t b/gr-blocks/lib/unpacked_to_packed_XX_impl.cc.t
new file mode 100644
index 000000000..3a7428fd8
--- /dev/null
+++ b/gr-blocks/lib/unpacked_to_packed_XX_impl.cc.t
@@ -0,0 +1,143 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2006,2013 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.
+ */
+
+// @WARNING@
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "@NAME_IMPL@.h"
+#include <gr_io_signature.h>
+#include <assert.h>
+
+namespace gr {
+  namespace blocks {
+
+    static const unsigned int BITS_PER_TYPE = sizeof(@O_TYPE@) * 8;
+
+    @NAME@::sptr
+    @NAME@::make(unsigned int bits_per_chunk,
+                 gr_endianness_t endianness)
+    {
+      return gnuradio::get_initial_sptr
+        (new @NAME_IMPL@(bits_per_chunk, endianness));
+    }
+
+    @NAME_IMPL@::@NAME_IMPL@(unsigned int bits_per_chunk,
+                             gr_endianness_t endianness)
+    : gr_block("@NAME@",
+               gr_make_io_signature(1, -1, sizeof(@I_TYPE@)),
+               gr_make_io_signature(1, -1, sizeof(@O_TYPE@))),
+      d_bits_per_chunk(bits_per_chunk), d_endianness(endianness), d_index(0)
+    {
+      assert(bits_per_chunk <= BITS_PER_TYPE);
+      assert(bits_per_chunk > 0);
+
+      set_relative_rate(bits_per_chunk/(1.0 * BITS_PER_TYPE));
+    }
+
+    @NAME_IMPL@::~@NAME_IMPL@()
+    {
+    }
+
+    void
+    @NAME_IMPL@::forecast(int noutput_items,
+                          gr_vector_int &ninput_items_required)
+    {
+      int input_required = (int)ceil((d_index+noutput_items * 1.0 * BITS_PER_TYPE)
+                                     / d_bits_per_chunk);
+      unsigned ninputs = ninput_items_required.size();
+      for(unsigned int i = 0; i < ninputs; i++) {
+        ninput_items_required[i] = input_required;
+      }
+    }
+
+    unsigned int
+    get_bit_be1(const @I_TYPE@ *in_vector, unsigned int bit_addr,
+                unsigned int bits_per_chunk)
+    {
+      unsigned int byte_addr = (int)bit_addr/bits_per_chunk;
+      @I_TYPE@ x = in_vector[byte_addr];
+      unsigned int residue = bit_addr - byte_addr * bits_per_chunk;
+      //printf("Bit addr %d  byte addr %d  residue %d  val  %d\n",bit_addr,byte_addr,residue,(x>>(bits_per_chunk-1-residue))&1);
+      return (x >> (bits_per_chunk-1-residue)) & 1;
+    }
+
+    int
+    @NAME_IMPL@::general_work(int noutput_items,
+                              gr_vector_int &ninput_items,
+                              gr_vector_const_void_star &input_items,
+                              gr_vector_void_star &output_items)
+    {
+      unsigned int index_tmp = d_index;
+
+      assert(input_items.size() == output_items.size());
+      int nstreams = input_items.size();
+
+      for(int m=0; m< nstreams; m++) {
+        const @I_TYPE@ *in = (@I_TYPE@ *)input_items[m];
+        @O_TYPE@ *out = (@O_TYPE@ *)output_items[m];
+        index_tmp=d_index;
+
+        // per stream processing
+
+        //assert((ninput_items[m]-d_index)*d_bits_per_chunk >= noutput_items*BITS_PER_TYPE);
+
+        switch(d_endianness) {
+
+        case GR_MSB_FIRST:
+          for(int i = 0; i < noutput_items; i++) {
+            @O_TYPE@ tmp=0;
+            for(unsigned int j = 0; j < BITS_PER_TYPE; j++) {
+              tmp = (tmp<<1) | get_bit_be1(in, index_tmp, d_bits_per_chunk);
+              index_tmp++;
+            }
+            out[i] = tmp;
+          }
+          break;
+
+        case GR_LSB_FIRST:
+          for(int i = 0; i < noutput_items; i++) {
+            unsigned long tmp=0;
+            for(unsigned int j = 0; j < BITS_PER_TYPE; j++) {
+              tmp = (tmp>>1) | (get_bit_be1(in, index_tmp, d_bits_per_chunk) << (BITS_PER_TYPE-1));
+              index_tmp++;
+            }
+            out[i] = tmp;
+          }
+          break;
+
+        default:
+          assert(0);
+        }
+      }
+
+      d_index = index_tmp;
+      consume_each((int)(d_index/d_bits_per_chunk));
+      d_index = d_index%d_bits_per_chunk;
+
+      return noutput_items;
+    }
+
+  } /* namespace blocks */
+} /* namespace gr */
diff --git a/gr-blocks/lib/unpacked_to_packed_XX_impl.h.t b/gr-blocks/lib/unpacked_to_packed_XX_impl.h.t
new file mode 100644
index 000000000..c8f414c55
--- /dev/null
+++ b/gr-blocks/lib/unpacked_to_packed_XX_impl.h.t
@@ -0,0 +1,59 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2006.2013 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.
+ */
+
+// @WARNING@
+
+#ifndef @GUARD_NAME_IMPL@
+#define @GUARD_NAME_IMPL@
+
+#include <blocks/@NAME@.h>
+
+namespace gr {
+  namespace blocks {
+
+    class @NAME_IMPL@ : public @NAME@
+    {
+    private:
+      unsigned int    d_bits_per_chunk;
+      gr_endianness_t d_endianness;
+      unsigned int    d_index;
+
+    public:
+      @NAME_IMPL@(unsigned int bits_per_chunk,
+                  gr_endianness_t endianness);
+      ~@NAME_IMPL@();
+
+      void forecast(int noutput_items,
+                    gr_vector_int &ninput_items_required);
+      int general_work(int noutput_items,
+                       gr_vector_int &ninput_items,
+                       gr_vector_const_void_star &input_items,
+                       gr_vector_void_star &output_items);
+
+      bool check_topology(int ninputs, int noutputs)
+      { return ninputs == noutputs; }
+    };
+
+  } /* namespace blocks */
+} /* namespace gr */
+
+#endif /* @GUARD_NAME_IMPL@ */
diff --git a/gr-blocks/python/qa_delay.py b/gr-blocks/python/qa_delay.py
new file mode 100755
index 000000000..031cadb2d
--- /dev/null
+++ b/gr-blocks/python/qa_delay.py
@@ -0,0 +1,65 @@
+#!/usr/bin/env python
+#
+# Copyright 2004,2007,2010,2013 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
+import blocks_swig as blocks
+
+class test_delay(gr_unittest.TestCase):
+
+    def setUp(self):
+        self.tb = gr.top_block()
+
+    def tearDown(self):
+        self.tb = None
+
+    def test_000(self):
+        delta_t = 0
+        tb = self.tb
+        src_data = [float(x) for x in range(0, 100)]
+        expected_result = tuple(delta_t*[0.0] + src_data)
+
+        src = gr.vector_source_f(src_data)
+        op = blocks.delay(gr.sizeof_float, delta_t)
+        dst = gr.vector_sink_f()
+
+        tb.connect(src, op, dst)
+        tb.run()
+        dst_data = dst.data()
+        self.assertEqual(expected_result, dst_data)
+
+    def test_010(self):
+        delta_t = 10
+        tb = self.tb
+        src_data = [float(x) for x in range(0, 100)]
+        expected_result = tuple(delta_t*[0.0] + src_data)
+
+        src = gr.vector_source_f(src_data)
+        op = blocks.delay(gr.sizeof_float, delta_t)
+        dst = gr.vector_sink_f()
+
+        tb.connect(src, op, dst)
+        tb.run()
+        dst_data = dst.data()
+        self.assertEqual(expected_result, dst_data)
+
+if __name__ == '__main__':
+    gr_unittest.run(test_delay, "test_delay.xml")
diff --git a/gr-blocks/python/qa_file_metadata.py b/gr-blocks/python/qa_file_metadata.py
index 29ed0d1c8..c7826b1d3 100644
--- a/gr-blocks/python/qa_file_metadata.py
+++ b/gr-blocks/python/qa_file_metadata.py
@@ -28,8 +28,8 @@ import os, math
 
 def sig_source_c(samp_rate, freq, amp, N):
     t = map(lambda x: float(x)/samp_rate, xrange(N))
-    y = map(lambda x: math.cos(2.*math.pi*freq*x) + \
-                1j*math.sin(2.*math.pi*freq*x), t)
+    y = map(lambda x: amp*math.cos(2.*math.pi*freq*x) + \
+                1j*amp*math.sin(2.*math.pi*freq*x), t)
     return y
 
 class test_file_metadata(gr_unittest.TestCase):
diff --git a/gr-blocks/python/qa_packed_to_unpacked.py b/gr-blocks/python/qa_packed_to_unpacked.py
new file mode 100755
index 000000000..98a02e78f
--- /dev/null
+++ b/gr-blocks/python/qa_packed_to_unpacked.py
@@ -0,0 +1,344 @@
+#!/usr/bin/env python
+#
+# Copyright 2005,2007,2010,2013 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
+import blocks_swig as blocks
+import random
+
+class test_packing(gr_unittest.TestCase):
+
+    def setUp(self):
+        self.tb = gr.top_block ()
+
+    def tearDown(self):
+        self.tb = None
+
+    def test_001(self):
+        src_data = (0x80,)
+        expected_results = (1,0,0,0,0,0,0,0)
+        src = gr.vector_source_b(src_data, False)
+        op = blocks.packed_to_unpacked_bb(1, gr.GR_MSB_FIRST)
+        dst = gr.vector_sink_b()
+
+        self.tb.connect(src, op)
+        self.tb.connect(op, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results, dst.data())
+
+    def test_002(self):
+        src_data = (0x80,)
+        expected_results = (0,0,0,0,0,0,0,1)
+        src = gr.vector_source_b(src_data, False)
+        op = blocks.packed_to_unpacked_bb(1, gr.GR_LSB_FIRST)
+        dst = gr.vector_sink_b()
+
+        self.tb.connect(src, op)
+        self.tb.connect(op, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results, dst.data())
+
+    def test_003(self):
+        src_data = (0x11,)
+        expected_results = (4, 2)
+        src = gr.vector_source_b(src_data, False)
+        op = gr.packed_to_unpacked_bb(3, gr.GR_LSB_FIRST)
+        dst = gr.vector_sink_b()
+
+        self.tb.connect(src, op)
+        self.tb.connect(op, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results, dst.data())
+
+    def test_004(self):
+        src_data = (0x11,)
+        expected_results = (0, 4)
+        src = gr.vector_source_b(src_data, False)
+        op = gr.packed_to_unpacked_bb(3, gr.GR_MSB_FIRST)
+        dst = gr.vector_sink_b()
+
+        self.tb.connect(src, op)
+        self.tb.connect(op, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results, dst.data())
+
+    def test_005(self):
+        src_data = (1,0,0,0,0,0,1,0,0,1,0,1,1,0,1,0)
+        expected_results = (0x82, 0x5a)
+        src = gr.vector_source_b(src_data, False)
+        op = gr.unpacked_to_packed_bb(1, gr.GR_MSB_FIRST)
+        dst = gr.vector_sink_b()
+
+        self.tb.connect(src, op)
+        self.tb.connect(op, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results, dst.data())
+
+    def test_006(self):
+        src_data = (0,1,0,0,0,0,0,1,0,1,0,1,1,0,1,0)
+        expected_results = (0x82, 0x5a)
+        src = gr.vector_source_b(src_data, False)
+        op = gr.unpacked_to_packed_bb(1, gr.GR_LSB_FIRST)
+        dst = gr.vector_sink_b()
+
+        self.tb.connect(src, op)
+        self.tb.connect(op, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results, dst.data())
+
+    def test_007(self):
+        src_data = (4, 2, 0,0,0)
+        expected_results = (0x11,)
+        src = gr.vector_source_b(src_data, False)
+        op = gr.unpacked_to_packed_bb(3, gr.GR_LSB_FIRST)
+        dst = gr.vector_sink_b()
+
+        self.tb.connect(src, op)
+        self.tb.connect(op, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results, dst.data())
+
+    def test_008(self):
+        src_data = (0, 4, 2,0,0)
+        expected_results = (0x11,)
+        src = gr.vector_source_b(src_data,False)
+        op = gr.unpacked_to_packed_bb(3, gr.GR_MSB_FIRST)
+        dst = gr.vector_sink_b()
+
+        self.tb.connect(src, op)
+        self.tb.connect(op, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results, dst.data())
+
+    def test_009(self):
+        random.seed(0)
+        src_data = []
+        for i in xrange(202):
+            src_data.append((random.randint(0,255)))
+        src_data = tuple(src_data)
+        expected_results = src_data
+
+        src = gr.vector_source_b(tuple(src_data), False)
+        op1 = gr.packed_to_unpacked_bb(3, gr.GR_MSB_FIRST)
+        op2 = gr.unpacked_to_packed_bb(3, gr.GR_MSB_FIRST)
+        dst = gr.vector_sink_b()
+
+        self.tb.connect(src, op1, op2)
+        self.tb.connect(op2, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results[0:201], dst.data())
+
+    def test_010(self):
+        random.seed(0)
+        src_data = []
+        for i in xrange(56):
+            src_data.append((random.randint(0,255)))
+        src_data = tuple(src_data)
+        expected_results = src_data
+        src = gr.vector_source_b(tuple(src_data), False)
+        op1 = gr.packed_to_unpacked_bb(7, gr.GR_MSB_FIRST)
+        op2 = gr.unpacked_to_packed_bb(7, gr.GR_MSB_FIRST)
+        dst = gr.vector_sink_b()
+
+        self.tb.connect(src, op1, op2)
+        self.tb.connect(op2, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results[0:201], dst.data())
+
+    def test_011(self):
+        random.seed(0)
+        src_data = []
+        for i in xrange(56):
+            src_data.append((random.randint(0,255)))
+        src_data = tuple(src_data)
+        expected_results = src_data
+        src = gr.vector_source_b(tuple(src_data),False)
+        op1 = gr.packed_to_unpacked_bb(7, gr.GR_LSB_FIRST)
+        op2 = gr.unpacked_to_packed_bb(7, gr.GR_LSB_FIRST)
+        dst = gr.vector_sink_b()
+
+        self.tb.connect(src, op1, op2)
+        self.tb.connect(op2, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results[0:201], dst.data())
+
+
+    # tests on shorts
+    def test_100a(self):
+        random.seed(0)
+        src_data = []
+        for i in xrange(100):
+            src_data.append((random.randint(-2**15,2**15-1)))
+        src_data = tuple(src_data)
+        expected_results = src_data
+        src = gr.vector_source_s(tuple(src_data), False)
+        op1 = gr.packed_to_unpacked_ss(1, gr.GR_MSB_FIRST)
+        op2 = gr.unpacked_to_packed_ss(1, gr.GR_MSB_FIRST)
+        dst = gr.vector_sink_s()
+
+        self.tb.connect(src, op1, op2)
+        self.tb.connect(op2, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results, dst.data())
+
+    def test_100b(self):
+        random.seed(0)
+        src_data = []
+        for i in xrange(100):
+            src_data.append((random.randint(-2**15,2**15-1)))
+        src_data = tuple(src_data)
+        expected_results = src_data
+        src = gr.vector_source_s(tuple(src_data), False)
+        op1 = gr.packed_to_unpacked_ss(1, gr.GR_LSB_FIRST)
+        op2 = gr.unpacked_to_packed_ss(1, gr.GR_LSB_FIRST)
+        dst = gr.vector_sink_s()
+
+        self.tb.connect(src, op1, op2)
+        self.tb.connect(op2, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results, dst.data())
+
+    def test_101a(self):
+        random.seed(0)
+        src_data = []
+        for i in xrange(100):
+            src_data.append((random.randint(-2**15,2**15-1)))
+        src_data = tuple(src_data)
+        expected_results = src_data
+        src = gr.vector_source_s(tuple(src_data), False)
+        op1 = gr.packed_to_unpacked_ss(8, gr.GR_MSB_FIRST)
+        op2 = gr.unpacked_to_packed_ss(8, gr.GR_MSB_FIRST)
+        dst = gr.vector_sink_s()
+
+        self.tb.connect(src, op1, op2)
+        self.tb.connect(op2, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results, dst.data())
+
+    def test_101b(self):
+        random.seed(0)
+        src_data = []
+        for i in xrange(100):
+            src_data.append((random.randint(-2**15,2**15-1)))
+        src_data = tuple(src_data)
+        expected_results = src_data
+        src = gr.vector_source_s(tuple(src_data), False)
+        op1 = gr.packed_to_unpacked_ss(8, gr.GR_LSB_FIRST)
+        op2 = gr.unpacked_to_packed_ss(8, gr.GR_LSB_FIRST)
+        dst = gr.vector_sink_s()
+
+        self.tb.connect(src, op1, op2)
+        self.tb.connect(op2, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results, dst.data())
+
+
+    # tests on ints
+    def test_200a(self):
+        random.seed(0)
+        src_data = []
+        for i in xrange(100):
+            src_data.append((random.randint(-2**31,2**31-1)))
+        src_data = tuple(src_data)
+        expected_results = src_data
+        src = gr.vector_source_i(tuple(src_data), False)
+        op1 = gr.packed_to_unpacked_ii(1, gr.GR_MSB_FIRST)
+        op2 = gr.unpacked_to_packed_ii(1, gr.GR_MSB_FIRST)
+        dst = gr.vector_sink_i()
+
+        self.tb.connect(src, op1, op2)
+        self.tb.connect(op2, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results, dst.data())
+
+    def test_200b(self):
+        random.seed(0)
+        src_data = []
+        for i in xrange(100):
+            src_data.append((random.randint(-2**31,2**31-1)))
+        src_data = tuple(src_data)
+        expected_results = src_data
+        src = gr.vector_source_i(tuple(src_data), False)
+        op1 = gr.packed_to_unpacked_ii(1, gr.GR_LSB_FIRST)
+        op2 = gr.unpacked_to_packed_ii(1, gr.GR_LSB_FIRST)
+        dst = gr.vector_sink_i()
+
+        self.tb.connect(src, op1, op2)
+        self.tb.connect(op2, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results, dst.data())
+
+    def test_201a(self):
+        random.seed(0)
+        src_data = []
+        for i in xrange(100):
+            src_data.append((random.randint(-2**31,2**31-1)))
+        src_data = tuple(src_data)
+        expected_results = src_data
+        src = gr.vector_source_i(tuple(src_data), False)
+        op1 = gr.packed_to_unpacked_ii(8, gr.GR_MSB_FIRST)
+        op2 = gr.unpacked_to_packed_ii(8, gr.GR_MSB_FIRST)
+        dst = gr.vector_sink_i()
+
+        self.tb.connect(src, op1, op2)
+        self.tb.connect(op2, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results, dst.data())
+
+    def test_201b(self):
+        random.seed(0)
+        src_data = []
+        for i in xrange(100):
+            src_data.append((random.randint(-2**31,2**31-1)))
+        src_data = tuple(src_data)
+        expected_results = src_data
+        src = gr.vector_source_i(tuple(src_data), False)
+        op1 = gr.packed_to_unpacked_ii(8, gr.GR_LSB_FIRST)
+        op2 = gr.unpacked_to_packed_ii(8, gr.GR_LSB_FIRST)
+        dst = gr.vector_sink_i()
+
+        self.tb.connect(src, op1, op2)
+        self.tb.connect(op2, dst)
+        self.tb.run()
+
+        self.assertEqual(expected_results, dst.data())
+
+if __name__ == '__main__':
+   gr_unittest.run(test_packing, "test_packing.xml")
+
diff --git a/gr-blocks/python/qa_rms.py b/gr-blocks/python/qa_rms.py
new file mode 100644
index 000000000..f3386668a
--- /dev/null
+++ b/gr-blocks/python/qa_rms.py
@@ -0,0 +1,83 @@
+#!/usr/bin/env python
+#
+# Copyright 2013 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
+import blocks_swig as blocks
+import math
+
+def sig_source_f(samp_rate, freq, amp, N):
+    t = map(lambda x: float(x)/samp_rate, xrange(N))
+    y = map(lambda x: amp*math.cos(2.*math.pi*freq*x), t)
+    return y
+
+def sig_source_c(samp_rate, freq, amp, N):
+    t = map(lambda x: float(x)/samp_rate, xrange(N))
+    y = map(lambda x: amp*math.cos(2.*math.pi*freq*x) + \
+                1j*amp*math.sin(2.*math.pi*freq*x), t)
+    return y
+
+class test_rms(gr_unittest.TestCase):
+
+    def setUp(self):
+        self.tb = gr.top_block()
+
+    def tearDown(self):
+        self.tb = None
+
+    def test_ff(self):
+        amp = 2
+        src_data = sig_source_f(1, 0.01, amp, 200)
+        N = 750000
+
+        expected_data = amp/math.sqrt(2.0)
+
+        src = gr.vector_source_f(src_data, True)
+        head = gr.head(gr.sizeof_float, N)
+        op = blocks.rms_ff(0.0001)
+        dst = gr.vector_sink_f()
+
+        self.tb.connect(src, head, op, dst)
+        self.tb.run()
+
+        dst_data = dst.data()
+        self.assertAlmostEqual(dst_data[-1], expected_data, 4)
+
+    def test_cf(self):
+        amp = 4
+        src_data = sig_source_c(1, 0.01, amp, 200)
+        N = 750000
+
+        expected_data = amp
+
+        src = gr.vector_source_c(src_data, True)
+        head = gr.head(gr.sizeof_gr_complex, N)
+        op = blocks.rms_cf(0.0001)
+        dst = gr.vector_sink_f()
+
+        self.tb.connect(src, head, op, dst)
+        self.tb.run()
+
+        dst_data = dst.data()
+        self.assertAlmostEqual(dst_data[-1], expected_data, 4)
+
+if __name__ == '__main__':
+    gr_unittest.run(test_rms, "test_rms.xml")
diff --git a/gr-blocks/swig/blocks_swig.i b/gr-blocks/swig/blocks_swig.i
index 53eea818f..b229e5563 100644
--- a/gr-blocks/swig/blocks_swig.i
+++ b/gr-blocks/swig/blocks_swig.i
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2012 Free Software Foundation, Inc.
+ * Copyright 2012-2013 Free Software Foundation, Inc.
  *
  * This file is part of GNU Radio
  *
@@ -27,6 +27,8 @@
 //load generated python docstrings
 %include "blocks_swig_doc.i"
 
+%include <gr_endianness.h>
+
 %{
 #include "blocks/add_ff.h"
 #include "blocks/add_ss.h"
@@ -57,6 +59,7 @@
 #include "blocks/complex_to_arg.h"
 #include "blocks/conjugate_cc.h"
 #include "blocks/deinterleave.h"
+#include "blocks/delay.h"
 #include "blocks/divide_ff.h"
 #include "blocks/divide_ss.h"
 #include "blocks/divide_ii.h"
@@ -96,10 +99,15 @@
 #include "blocks/not_ss.h"
 #include "blocks/not_ii.h"
 #include "blocks/patterned_interleaver.h"
+#include "blocks/packed_to_unpacked_bb.h"
+#include "blocks/packed_to_unpacked_ss.h"
+#include "blocks/packed_to_unpacked_ii.h"
 #include "blocks/or_bb.h"
 #include "blocks/or_ss.h"
 #include "blocks/or_ii.h"
 #include "blocks/repeat.h"
+#include "blocks/rms_cf.h"
+#include "blocks/rms_ff.h"
 #include "blocks/short_to_char.h"
 #include "blocks/short_to_float.h"
 #include "blocks/stream_mux.h"
@@ -112,6 +120,9 @@
 #include "blocks/sub_ii.h"
 #include "blocks/sub_cc.h"
 #include "blocks/uchar_to_float.h"
+#include "blocks/unpacked_to_packed_bb.h"
+#include "blocks/unpacked_to_packed_ss.h"
+#include "blocks/unpacked_to_packed_ii.h"
 #include "blocks/vector_to_stream.h"
 #include "blocks/vector_to_streams.h"
 #include "blocks/xor_bb.h"
@@ -148,6 +159,7 @@
 %include "blocks/complex_to_arg.h"
 %include "blocks/conjugate_cc.h"
 %include "blocks/deinterleave.h"
+%include "blocks/delay.h"
 %include "blocks/file_source.h"
 %include "blocks/file_meta_sink.h"
 %include "blocks/file_meta_source.h"
@@ -187,10 +199,15 @@
 %include "blocks/not_ss.h"
 %include "blocks/not_ii.h"
 %include "blocks/patterned_interleaver.h"
+%include "blocks/packed_to_unpacked_bb.h"
+%include "blocks/packed_to_unpacked_ss.h"
+%include "blocks/packed_to_unpacked_ii.h"
 %include "blocks/or_bb.h"
 %include "blocks/or_ss.h"
 %include "blocks/or_ii.h"
 %include "blocks/repeat.h"
+%include "blocks/rms_cf.h"
+%include "blocks/rms_ff.h"
 %include "blocks/short_to_char.h"
 %include "blocks/short_to_float.h"
 %include "blocks/stream_mux.h"
@@ -203,6 +220,9 @@
 %include "blocks/sub_ii.h"
 %include "blocks/sub_cc.h"
 %include "blocks/uchar_to_float.h"
+%include "blocks/unpacked_to_packed_bb.h"
+%include "blocks/unpacked_to_packed_ss.h"
+%include "blocks/unpacked_to_packed_ii.h"
 %include "blocks/vector_to_stream.h"
 %include "blocks/vector_to_streams.h"
 %include "blocks/xor_bb.h"
@@ -238,6 +258,7 @@ GR_SWIG_BLOCK_MAGIC2(blocks, complex_to_mag_squared);
 GR_SWIG_BLOCK_MAGIC2(blocks, complex_to_arg);
 GR_SWIG_BLOCK_MAGIC2(blocks, conjugate_cc);
 GR_SWIG_BLOCK_MAGIC2(blocks, deinterleave);
+GR_SWIG_BLOCK_MAGIC2(blocks, delay);
 GR_SWIG_BLOCK_MAGIC2(blocks, divide_ff);
 GR_SWIG_BLOCK_MAGIC2(blocks, divide_ss);
 GR_SWIG_BLOCK_MAGIC2(blocks, divide_ii);
@@ -277,10 +298,15 @@ GR_SWIG_BLOCK_MAGIC2(blocks, not_bb);
 GR_SWIG_BLOCK_MAGIC2(blocks, not_ss);
 GR_SWIG_BLOCK_MAGIC2(blocks, not_ii);
 GR_SWIG_BLOCK_MAGIC2(blocks, patterned_interleaver);
+GR_SWIG_BLOCK_MAGIC2(blocks, packed_to_unpacked_bb);
+GR_SWIG_BLOCK_MAGIC2(blocks, packed_to_unpacked_ss);
+GR_SWIG_BLOCK_MAGIC2(blocks, packed_to_unpacked_ii);
 GR_SWIG_BLOCK_MAGIC2(blocks, or_bb);
 GR_SWIG_BLOCK_MAGIC2(blocks, or_ss);
 GR_SWIG_BLOCK_MAGIC2(blocks, or_ii);
 GR_SWIG_BLOCK_MAGIC2(blocks, repeat);
+GR_SWIG_BLOCK_MAGIC2(blocks, rms_cf);
+GR_SWIG_BLOCK_MAGIC2(blocks, rms_ff);
 GR_SWIG_BLOCK_MAGIC2(blocks, short_to_char);
 GR_SWIG_BLOCK_MAGIC2(blocks, short_to_float);
 GR_SWIG_BLOCK_MAGIC2(blocks, stream_mux);
@@ -293,6 +319,9 @@ GR_SWIG_BLOCK_MAGIC2(blocks, sub_ss);
 GR_SWIG_BLOCK_MAGIC2(blocks, sub_ii);
 GR_SWIG_BLOCK_MAGIC2(blocks, sub_cc);
 GR_SWIG_BLOCK_MAGIC2(blocks, uchar_to_float);
+GR_SWIG_BLOCK_MAGIC2(blocks, unpacked_to_packed_bb);
+GR_SWIG_BLOCK_MAGIC2(blocks, unpacked_to_packed_ss);
+GR_SWIG_BLOCK_MAGIC2(blocks, unpacked_to_packed_ii);
 GR_SWIG_BLOCK_MAGIC2(blocks, vector_to_stream);
 GR_SWIG_BLOCK_MAGIC2(blocks, vector_to_streams);
 GR_SWIG_BLOCK_MAGIC2(blocks, xor_bb);