[hamradio-commits] [gnss-sdr] 19/44: adding more data types to the freq_xlating_fir_filter

Carles Fernandez carles_fernandez-guest at moszumanska.debian.org
Sun Feb 15 15:32:21 UTC 2015


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carles_fernandez-guest pushed a commit to branch next
in repository gnss-sdr.

commit 792c8c1c338a1e4503241a5b43eb373f22ec1f91
Author: Carles Fernandez <carles.fernandez at gmail.com>
Date:   Wed Feb 4 21:45:16 2015 +0100

    adding more data types to the freq_xlating_fir_filter
---
 .../adapters/freq_xlating_fir_filter.cc            | 197 ++++++++++++++++++---
 .../adapters/freq_xlating_fir_filter.h             |  12 +-
 .../input_filter/gnuradio_blocks/CMakeLists.txt    |   8 +-
 .../complex_float_to_complex_byte.cc               |  63 +++++++
 .../complex_float_to_complex_byte.h                |  60 +++++++
 5 files changed, 314 insertions(+), 26 deletions(-)

diff --git a/src/algorithms/input_filter/adapters/freq_xlating_fir_filter.cc b/src/algorithms/input_filter/adapters/freq_xlating_fir_filter.cc
index 71745dd..a38ec78 100644
--- a/src/algorithms/input_filter/adapters/freq_xlating_fir_filter.cc
+++ b/src/algorithms/input_filter/adapters/freq_xlating_fir_filter.cc
@@ -74,22 +74,41 @@ FreqXlatingFirFilter::FreqXlatingFirFilter(ConfigurationInterface* configuration
             freq_xlating_fir_filter_scf_ = gr::filter::freq_xlating_fir_filter_scf::make(decimation_factor, taps_, intermediate_freq_, sampling_freq_);
             DLOG(INFO) << "input_filter(" << freq_xlating_fir_filter_scf_->unique_id() << ")";
         }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("short") == 0)
+            && (output_item_type_.compare("cshort") == 0))
+        {
+            item_size = sizeof(lv_16sc_t);
+            input_size_ = sizeof(int16_t); //input
+            freq_xlating_fir_filter_scf_ = gr::filter::freq_xlating_fir_filter_scf::make(decimation_factor, taps_, intermediate_freq_, sampling_freq_);
+            DLOG(INFO) << "input_filter(" << freq_xlating_fir_filter_scf_->unique_id() << ")";
+            complex_to_float_ = gr::blocks::complex_to_float::make();
+            float_to_short_1_ = gr::blocks::float_to_short::make();
+            float_to_short_2_ = gr::blocks::float_to_short::make();
+            short_x2_to_cshort_ = make_short_x2_to_cshort();
+        }
     else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("byte") == 0)
             && (output_item_type_.compare("gr_complex") == 0))
         {
             item_size = sizeof(gr_complex);
             input_size_ = sizeof(int8_t); //input
-    //  gr_char_to_short_ = gr::blocks::char_to_short::make();
+            gr_char_to_short_ = gr::blocks::char_to_short::make();
             freq_xlating_fir_filter_scf_ = gr::filter::freq_xlating_fir_filter_scf::make(decimation_factor, taps_, intermediate_freq_, sampling_freq_);
-// short_x2_complex_byte
             DLOG(INFO) << "input_filter(" << freq_xlating_fir_filter_scf_->unique_id() << ")";
         }
-
-    // gr_short_to_float _ = gr::blocks::short_to_float::make();
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("byte") == 0)
+            && (output_item_type_.compare("cbyte") == 0))
+        {
+            item_size = sizeof(lv_8sc_t);
+            input_size_ = sizeof(int8_t); //input
+            gr_char_to_short_ = gr::blocks::char_to_short::make();
+            freq_xlating_fir_filter_scf_ = gr::filter::freq_xlating_fir_filter_scf::make(decimation_factor, taps_, intermediate_freq_, sampling_freq_);
+            DLOG(INFO) << "input_filter(" << freq_xlating_fir_filter_scf_->unique_id() << ")";
+            complex_to_complex_byte_ = make_complex_float_to_complex_byte();
+        }
     else
         {
             LOG(ERROR) << taps_item_type_ << " unknown input filter item type";
-            item_size = sizeof(gr_complex); //avoids unitialization
+            item_size = sizeof(gr_complex); //avoids uninitialization
         }
 
     if (dump_)
@@ -109,24 +128,65 @@ FreqXlatingFirFilter::~FreqXlatingFirFilter()
 
 void FreqXlatingFirFilter::connect(gr::top_block_sptr top_block)
 {
-    if (dump_)
+    if ((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("gr_complex") == 0)
+            && (output_item_type_.compare("gr_complex") == 0))
+        {
+            if (dump_)
+                {
+                    top_block->connect(freq_xlating_fir_filter_ccf_, 0, file_sink_, 0);
+                }
+        }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("float") == 0)
+            && (output_item_type_.compare("gr_complex") == 0))
         {
-            if (input_size_ == sizeof(float))
+            if (dump_)
                 {
                     top_block->connect(freq_xlating_fir_filter_fcf_, 0, file_sink_, 0);
                 }
-            else if (input_size_ == sizeof(short))
+        }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("short") == 0)
+            && (output_item_type_.compare("gr_complex") == 0))
+        {
+            if (dump_)
+                {
+                    top_block->connect(freq_xlating_fir_filter_scf_, 0, file_sink_, 0);
+                }
+        }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("short") == 0)
+            && (output_item_type_.compare("cshort") == 0))
+        {
+            top_block->connect(freq_xlating_fir_filter_scf_, 0, complex_to_float_, 0);
+            top_block->connect(complex_to_float_, 0, float_to_short_1_, 0);
+            top_block->connect(complex_to_float_, 1, float_to_short_2_, 0);
+            top_block->connect(float_to_short_1_, 0, short_x2_to_cshort_, 0);
+            top_block->connect(float_to_short_2_, 0, short_x2_to_cshort_, 0);
+            if (dump_)
+                {
+                    top_block->connect(short_x2_to_cshort_, 0, file_sink_, 0);
+                }
+        }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("byte") == 0)
+            && (output_item_type_.compare("gr_complex") == 0))
+        {
+            top_block->connect(gr_char_to_short_, 0, freq_xlating_fir_filter_scf_, 0);
+            if (dump_)
                 {
                     top_block->connect(freq_xlating_fir_filter_scf_, 0, file_sink_, 0);
                 }
-            else
+        }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("byte") == 0)
+            && (output_item_type_.compare("cbyte") == 0))
+        {
+            top_block->connect(gr_char_to_short_, 0, freq_xlating_fir_filter_scf_, 0);
+            top_block->connect(freq_xlating_fir_filter_scf_, 0, complex_to_complex_byte_, 0);
+            if (dump_)
                 {
-                    top_block->connect(freq_xlating_fir_filter_ccf_, 0, file_sink_, 0);
+                    top_block->connect(complex_to_complex_byte_, 0, file_sink_, 0);
                 }
         }
     else
         {
-            DLOG(INFO) << "Nothing to connect internally";
+            LOG(ERROR) << " unknown input filter item type";
         }
 }
 
@@ -134,56 +194,145 @@ void FreqXlatingFirFilter::connect(gr::top_block_sptr top_block)
 
 void FreqXlatingFirFilter::disconnect(gr::top_block_sptr top_block)
 {
-    if (dump_)
+    if ((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("gr_complex") == 0)
+            && (output_item_type_.compare("gr_complex") == 0))
+        {
+            if (dump_)
+                {
+                    top_block->disconnect(freq_xlating_fir_filter_ccf_, 0, file_sink_, 0);
+                }
+        }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("float") == 0)
+            && (output_item_type_.compare("gr_complex") == 0))
         {
-            if (input_size_ == sizeof(float))
+            if (dump_)
                 {
                     top_block->disconnect(freq_xlating_fir_filter_fcf_, 0, file_sink_, 0);
                 }
-            else if (input_size_ == sizeof(short))
+        }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("short") == 0)
+            && (output_item_type_.compare("gr_complex") == 0))
+        {
+            if (dump_)
+                {
+                    top_block->disconnect(freq_xlating_fir_filter_scf_, 0, file_sink_, 0);
+                }
+        }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("short") == 0)
+            && (output_item_type_.compare("cshort") == 0))
+        {
+            top_block->disconnect(freq_xlating_fir_filter_scf_, 0, complex_to_float_, 0);
+            top_block->disconnect(complex_to_float_, 0, float_to_short_1_, 0);
+            top_block->disconnect(complex_to_float_, 1, float_to_short_2_, 0);
+            top_block->disconnect(float_to_short_1_, 0, short_x2_to_cshort_, 0);
+            top_block->disconnect(float_to_short_2_, 0, short_x2_to_cshort_, 0);
+            if (dump_)
+                {
+                    top_block->disconnect(short_x2_to_cshort_, 0, file_sink_, 0);
+                }
+        }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("byte") == 0)
+            && (output_item_type_.compare("gr_complex") == 0))
+        {
+            top_block->disconnect(gr_char_to_short_, 0, freq_xlating_fir_filter_scf_, 0);
+            if (dump_)
                 {
                     top_block->disconnect(freq_xlating_fir_filter_scf_, 0, file_sink_, 0);
                 }
-            else
+        }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("byte") == 0)
+            && (output_item_type_.compare("cbyte") == 0))
+        {
+            top_block->disconnect(gr_char_to_short_, 0, freq_xlating_fir_filter_scf_, 0);
+            top_block->disconnect(freq_xlating_fir_filter_scf_, 0, complex_to_complex_byte_, 0);
+            if (dump_)
                 {
-                    top_block->disconnect(freq_xlating_fir_filter_ccf_, 0, file_sink_, 0);
+                    top_block->disconnect(complex_to_complex_byte_, 0, file_sink_, 0);
                 }
         }
-
+    else
+        {
+            LOG(ERROR) << " unknown input filter item type";
+        }
 }
 
 
 gr::basic_block_sptr FreqXlatingFirFilter::get_left_block()
 {
-    if (input_size_ == sizeof(float))
+    if ((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("gr_complex") == 0)
+            && (output_item_type_.compare("gr_complex") == 0))
+        {
+            return freq_xlating_fir_filter_ccf_;
+        }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("float") == 0)
+            && (output_item_type_.compare("gr_complex") == 0))
         {
             return freq_xlating_fir_filter_fcf_;
         }
-    else if (input_size_ == sizeof(short))
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("short") == 0)
+            && (output_item_type_.compare("gr_complex") == 0))
+        {
+            return freq_xlating_fir_filter_scf_;
+        }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("short") == 0)
+            && (output_item_type_.compare("cshort") == 0))
         {
             return freq_xlating_fir_filter_scf_;
         }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("byte") == 0)
+            && (output_item_type_.compare("gr_complex") == 0))
+        {
+            return gr_char_to_short_;
+        }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("byte") == 0)
+            && (output_item_type_.compare("cbyte") == 0))
+        {
+            return gr_char_to_short_;
+        }
     else
         {
-            return freq_xlating_fir_filter_ccf_;
+            return nullptr;
+            LOG(ERROR) << " unknown input filter item type";
         }
-
 }
 
 
 gr::basic_block_sptr FreqXlatingFirFilter::get_right_block()
 {
-    if (input_size_ == sizeof(float))
+    if ((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("gr_complex") == 0)
+            && (output_item_type_.compare("gr_complex") == 0))
+        {
+            return freq_xlating_fir_filter_ccf_;
+        }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("float") == 0)
+            && (output_item_type_.compare("gr_complex") == 0))
         {
             return freq_xlating_fir_filter_fcf_;
         }
-    else if (input_size_ == sizeof(short))
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("short") == 0)
+            && (output_item_type_.compare("gr_complex") == 0))
         {
             return freq_xlating_fir_filter_scf_;
         }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("short") == 0)
+            && (output_item_type_.compare("cshort") == 0))
+        {
+           return short_x2_to_cshort_;
+        }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("byte") == 0)
+            && (output_item_type_.compare("gr_complex") == 0))
+        {
+            return freq_xlating_fir_filter_scf_;
+        }
+    else if((taps_item_type_.compare("float") == 0) && (input_item_type_.compare("byte") == 0)
+            && (output_item_type_.compare("cbyte") == 0))
+        {
+            return complex_to_complex_byte_;
+        }
     else
         {
-            return freq_xlating_fir_filter_ccf_;
+            return nullptr;
+            LOG(ERROR) << " unknown input filter item type";
         }
 }
 
diff --git a/src/algorithms/input_filter/adapters/freq_xlating_fir_filter.h b/src/algorithms/input_filter/adapters/freq_xlating_fir_filter.h
index cf5b316..cacde1b 100644
--- a/src/algorithms/input_filter/adapters/freq_xlating_fir_filter.h
+++ b/src/algorithms/input_filter/adapters/freq_xlating_fir_filter.h
@@ -39,10 +39,14 @@
 #include <gnuradio/filter/freq_xlating_fir_filter_fcf.h>
 #include <gnuradio/filter/freq_xlating_fir_filter_scf.h>
 #include <gnuradio/blocks/file_sink.h>
+#include <gnuradio/blocks/complex_to_float.h>
+#include <gnuradio/blocks/char_to_short.h>
+#include <gnuradio/blocks/float_to_short.h>
 #include <gnuradio/msg_queue.h>
 #include "gnss_synchro.h"
 #include "gnss_block_interface.h"
-
+#include "short_x2_to_cshort.h"
+#include "complex_float_to_complex_byte.h"
 
 class ConfigurationInterface;
 
@@ -104,6 +108,12 @@ private:
     unsigned int out_streams_;
     boost::shared_ptr<gr::msg_queue> queue_;
     gr::blocks::file_sink::sptr file_sink_;
+    gr::blocks::complex_to_float::sptr complex_to_float_;
+    gr::blocks::char_to_short::sptr gr_char_to_short_;
+    gr::blocks::float_to_short::sptr float_to_short_1_;
+    gr::blocks::float_to_short::sptr float_to_short_2_;
+    short_x2_to_cshort_sptr short_x2_to_cshort_;
+    complex_float_to_complex_byte_sptr complex_to_complex_byte_;
     void init();
 };
 
diff --git a/src/algorithms/input_filter/gnuradio_blocks/CMakeLists.txt b/src/algorithms/input_filter/gnuradio_blocks/CMakeLists.txt
index b81a4a7..68d32cb 100644
--- a/src/algorithms/input_filter/gnuradio_blocks/CMakeLists.txt
+++ b/src/algorithms/input_filter/gnuradio_blocks/CMakeLists.txt
@@ -23,6 +23,7 @@ set(INPUT_FILTER_GR_BLOCKS_SOURCES
      byte_x2_to_complex_byte.cc
      cshort_to_float_x2.cc
      short_x2_to_cshort.cc
+     complex_float_to_complex_byte.cc
 )
 
 include_directories(
@@ -30,10 +31,15 @@ include_directories(
      ${GLOG_INCLUDE_DIRS}
      ${GFlags_INCLUDE_DIRS}
      ${GNURADIO_RUNTIME_INCLUDE_DIRS}
+     ${GNURADIO_BLOCKS_INCLUDE_DIRS}
      ${VOLK_INCLUDE_DIRS}
+     ${VOLK_GNSSSDR_INCLUDE_DIRS}
 )
 
 file(GLOB INPUT_FILTER_GR_BLOCKS_HEADERS "*.h")
 add_library(input_filter_gr_blocks ${INPUT_FILTER_GR_BLOCKS_SOURCES} ${INPUT_FILTER_GR_BLOCKS_HEADERS})
 source_group(Headers FILES ${INPUT_FILTER_GR_BLOCKS_HEADERS})
-target_link_libraries(input_filter_gr_blocks ${GNURADIO_RUNTIME_LIBRARIES} ${VOLK_LIBRARIES})
+target_link_libraries(input_filter_gr_blocks ${GNURADIO_RUNTIME_LIBRARIES} ${VOLK_LIBRARIES} ${VOLK_GNSSSDR_LIBRARIES} ${GNURADIO_BLOCKS_LIBRARIES})
+if(NOT VOLK_GNSSSDR_FOUND)
+    add_dependencies(input_filter_gr_blocks volk_gnsssdr_module)
+endif(NOT VOLK_GNSSSDR_FOUND)
\ No newline at end of file
diff --git a/src/algorithms/input_filter/gnuradio_blocks/complex_float_to_complex_byte.cc b/src/algorithms/input_filter/gnuradio_blocks/complex_float_to_complex_byte.cc
new file mode 100644
index 0000000..9b659e5
--- /dev/null
+++ b/src/algorithms/input_filter/gnuradio_blocks/complex_float_to_complex_byte.cc
@@ -0,0 +1,63 @@
+/*!
+ * \file complex_float_to_complex_byte.cc
+ * \brief Adapts a gr_complex stream into a std::complex<signed char> stream
+ * \author Carles Fernandez Prades, cfernandez(at)cttc.es
+ *
+ * -------------------------------------------------------------------------
+ *
+ * Copyright (C) 2010-2015  (see AUTHORS file for a list of contributors)
+ *
+ * GNSS-SDR is a software defined Global Navigation
+ *          Satellite Systems receiver
+ *
+ * This file is part of GNSS-SDR.
+ *
+ * GNSS-SDR 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 of the License, or
+ * (at your option) any later version.
+ *
+ * GNSS-SDR 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 GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * -------------------------------------------------------------------------
+ */
+
+
+#include "complex_float_to_complex_byte.h"
+#include <gnuradio/io_signature.h>
+#include <volk/volk.h>
+#include "volk_gnsssdr/volk_gnsssdr.h"
+
+
+
+complex_float_to_complex_byte_sptr make_complex_float_to_complex_byte()
+{
+    return complex_float_to_complex_byte_sptr(new complex_float_to_complex_byte());
+}
+
+
+
+complex_float_to_complex_byte::complex_float_to_complex_byte() : sync_block("complex_float_to_complex_byte",
+                        gr::io_signature::make (1, 1, sizeof(gr_complex)),
+                        gr::io_signature::make (1, 1, sizeof(lv_8sc_t))) // lv_8sc_t is a Volk's typedef for std::complex<signed char>
+{
+    const int alignment_multiple = volk_get_alignment() / sizeof(lv_8sc_t);
+    set_alignment(std::max(1, alignment_multiple));
+}
+
+
+int complex_float_to_complex_byte::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];
+    lv_8sc_t *out = (lv_8sc_t*) output_items[0];
+    volk_gnsssdr_32fc_convert_8ic(out, in, noutput_items);
+    return noutput_items;
+}
diff --git a/src/algorithms/input_filter/gnuradio_blocks/complex_float_to_complex_byte.h b/src/algorithms/input_filter/gnuradio_blocks/complex_float_to_complex_byte.h
new file mode 100644
index 0000000..81c26ed
--- /dev/null
+++ b/src/algorithms/input_filter/gnuradio_blocks/complex_float_to_complex_byte.h
@@ -0,0 +1,60 @@
+/*!
+ * \file complex_float_to_complex_byte.h
+ * \brief Adapts a gr_complex stream into a std::complex<signed char> stream
+ * \author Carles Fernandez Prades, cfernandez(at)cttc.es
+ *
+ * -------------------------------------------------------------------------
+ *
+ * Copyright (C) 2010-2015  (see AUTHORS file for a list of contributors)
+ *
+ * GNSS-SDR is a software defined Global Navigation
+ *          Satellite Systems receiver
+ *
+ * This file is part of GNSS-SDR.
+ *
+ * GNSS-SDR 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 of the License, or
+ * (at your option) any later version.
+ *
+ * GNSS-SDR 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 GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * -------------------------------------------------------------------------
+ */
+
+#ifndef GNSS_SDR_COMPLEX_FLOAT_TO_COMPLEX_BYTE_H_
+#define GNSS_SDR_COMPLEX_FLOAT_TO_COMPLEX_BYTE_H_
+
+
+#include <string>
+#include <boost/shared_ptr.hpp>
+#include <gnuradio/sync_block.h>
+
+class complex_float_to_complex_byte;
+
+typedef boost::shared_ptr<complex_float_to_complex_byte> complex_float_to_complex_byte_sptr;
+
+complex_float_to_complex_byte_sptr make_complex_float_to_complex_byte();
+
+/*!
+ * \brief This class adapts a gr_complex stream into a std::complex<signed char> stream
+ */
+class complex_float_to_complex_byte :  public gr::sync_block
+{
+private:
+    friend complex_float_to_complex_byte_sptr make_complex_float_to_complex_byte();
+public:
+    complex_float_to_complex_byte();
+
+    int work(int noutput_items,
+            gr_vector_const_void_star &input_items,
+            gr_vector_void_star &output_items);
+};
+
+#endif

-- 
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