Introduce IQ sink block
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@ -152,7 +152,7 @@ endif()
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# components required to the list of GR_REQUIRED_COMPONENTS (in all
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# caps such as FILTER or FFT) and change the version to the minimum
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# API compatible version required.
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set(GR_REQUIRED_COMPONENTS RUNTIME FFT FILTER DIGITAL)
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set(GR_REQUIRED_COMPONENTS RUNTIME FFT FILTER DIGITAL BLOCKS)
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find_package(Gnuradio "3.7.7" REQUIRED)
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list(INSERT CMAKE_MODULE_PATH 0 ${CMAKE_SOURCE_DIR}/cmake/Modules)
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include(GrVersion)
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@ -51,5 +51,6 @@ install(FILES
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${enabled_blocks}
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satnogs_ogg_source.xml
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satnogs_noaa_apt_sink.xml
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satnogs_frame_file_sink.xml DESTINATION share/gnuradio/grc/blocks
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satnogs_frame_file_sink.xml
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satnogs_iq_sink.xml DESTINATION share/gnuradio/grc/blocks
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)
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@ -0,0 +1,52 @@
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<?xml version="1.0"?>
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<block>
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<name>IQ Sink</name>
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<key>satnogs_iq_sink</key>
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<category>[SatNOGS]</category>
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<import>import satnogs</import>
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<make>satnogs.iq_sink($scale, $filename, $append, $status)</make>
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<callback>open($file)</callback>
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<param>
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<name>File</name>
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<key>filename</key>
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<value></value>
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<type>file_save</type>
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</param>
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<param>
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<name>Status</name>
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<key>status</key>
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<value>0</value>
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<type>int</type>
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<hide>part</hide>
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</param>
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<param>
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<name>Scale</name>
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<key>scale</key>
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<value>32767</value>
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<type>float</type>
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</param>
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<param>
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<name>Append file</name>
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<key>append</key>
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<value>False</value>
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<type>bool</type>
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<option>
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<name>Append</name>
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<key>True</key>
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</option>
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<option>
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<name>Overwrite</name>
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<key>False</key>
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</option>
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</param>
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<sink>
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<name>in</name>
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<type>complex</type>
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</sink>
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</block>
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@ -65,5 +65,6 @@ install(FILES
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${HEADER_FILES}
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ogg_source.h
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noaa_apt_sink.h
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frame_file_sink.h DESTINATION include/satnogs
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frame_file_sink.h
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iq_sink.h DESTINATION include/satnogs
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)
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@ -0,0 +1,72 @@
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/* -*- c++ -*- */
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/*
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* gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
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*
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* Copyright (C) 2017, Libre Space Foundation <http://librespacefoundation.org/>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef INCLUDED_SATNOGS_IQ_SINK_H
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#define INCLUDED_SATNOGS_IQ_SINK_H
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#include <satnogs/api.h>
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#include <gnuradio/sync_block.h>
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#include <gnuradio/blocks/file_sink_base.h>
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namespace gr
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{
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namespace satnogs
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{
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/*!
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* \brief This block converts a complex float input stream to short and stores
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* it to a file. If the value of status argument is zero the block behaves
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* as a null sink block.
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*
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* \ingroup satnogs
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*
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*/
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class SATNOGS_API iq_sink : virtual public gr::sync_block,
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virtual public gr::blocks::file_sink_base
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{
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public:
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typedef boost::shared_ptr<iq_sink> sptr;
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/**
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* This block converts a complex float input stream to short and stores
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* it to a file. If the value of status argument is zero the block behaves
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* as a null sink block.
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*
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* @param scale the value multiplied against each point in the input stream
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* @param filename name of the file to open and write output to.
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* @param append if true, data is appended to the file instead of
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* overwriting the initial content.
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* @param status the status of the block.
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* - 0: Block acts as a null sink
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* - 1: Active
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*
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* @return a shared_ptr to a new instance of satnogs::iq_sink.
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*/
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static sptr make(const float scale,
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const char *filename, bool append=false,
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const int status = 0);
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};
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}
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// namespace satnogs
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}// namespace gr
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#endif /* INCLUDED_SATNOGS_IQ_SINK_H */
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@ -63,7 +63,8 @@ list(APPEND satnogs_sources
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waterfall_sink_impl.cc
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ogg_source_impl.cc
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noaa_apt_sink_impl.cc
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frame_file_sink_impl.cc)
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frame_file_sink_impl.cc
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iq_sink_impl.cc)
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if(${INCLUDE_DEBUG_BLOCKS})
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list(APPEND satnogs_sources ${satnogs_debug_sources})
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@ -0,0 +1,124 @@
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/* -*- c++ -*- */
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/*
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* gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
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*
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* Copyright (C) 2017, Libre Space Foundation <http://librespacefoundation.org/>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gnuradio/io_signature.h>
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#include "iq_sink_impl.h"
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#include <volk/volk.h>
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#include <stdexcept>
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namespace gr
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{
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namespace satnogs
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{
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iq_sink::sptr
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iq_sink::make (const float scale, const char *filename, bool append,
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const int status)
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{
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return gnuradio::get_initial_sptr (
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new iq_sink_impl (scale, filename, append, status));
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}
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/*
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* The private constructor
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*/
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iq_sink_impl::iq_sink_impl (const float scale, const char *filename,
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bool append, const int status) :
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gr::sync_block ("iq_sink",
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gr::io_signature::make (1, 1, sizeof(gr_complex)),
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gr::io_signature::make (0, 0, 0)),
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file_sink_base (filename, true, append),
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d_scale (scale),
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d_num_points (16384),
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d_status ((iq_sink_status_t) status)
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{
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set_max_noutput_items (d_num_points);
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unsigned int alignment = volk_get_alignment ();
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d_out = (int16_t*) volk_malloc (sizeof(int16_t) * d_num_points * 2,
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alignment);
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}
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/*
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* Our virtual destructor.
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*/
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iq_sink_impl::~iq_sink_impl ()
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{
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volk_free (d_out);
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}
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int
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iq_sink_impl::work (int noutput_items,
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gr_vector_const_void_star &input_items,
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gr_vector_void_star &output_items)
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{
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gr_complex *inbuf = (gr_complex*) input_items[0];
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int nwritten = 0;
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switch (d_status)
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{
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case IQ_SINK_STATUS_NULL:
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{
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return noutput_items;
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break;
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}
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case IQ_SINK_STATUS_ACTIVE:
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{
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/* update d_fp is required */
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do_update ();
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if (!d_fp)
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/* drop output on the floor */
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return noutput_items;
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volk_32f_s32f_convert_16i (d_out, (float*) inbuf, d_scale,
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noutput_items * 2);
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while (nwritten < noutput_items) {
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int count = fwrite (d_out, 2 * sizeof(int16_t),
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noutput_items - nwritten, d_fp);
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if (count == 0) {
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if (ferror (d_fp)) {
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std::cout << count << std::endl;
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std::stringstream s;
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s << "file_sink write failed with error " << fileno (d_fp)
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<< std::endl;
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throw std::runtime_error (s.str ());
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}
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/* if EOF */
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else {
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break;
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}
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}
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nwritten += count;
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}
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return nwritten;
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break;
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}
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}
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}
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} /* namespace satnogs */
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} /* namespace gr */
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@ -0,0 +1,65 @@
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/* -*- c++ -*- */
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/*
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* gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
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*
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* Copyright (C) 2017, Libre Space Foundation <http://librespacefoundation.org/>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef INCLUDED_SATNOGS_IQ_SINK_IMPL_H
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#define INCLUDED_SATNOGS_IQ_SINK_IMPL_H
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#include <satnogs/iq_sink.h>
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#include <chrono>
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#include <fstream>
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namespace gr
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{
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namespace satnogs
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{
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class iq_sink_impl : public iq_sink
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{
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private:
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/**
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* The different values for iq sink status
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*/
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typedef enum
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{
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IQ_SINK_STATUS_NULL = 0, //!< IQ_SINK_STATUS_NULL IQ sink block behaves just like a null sink
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IQ_SINK_STATUS_ACTIVE = 1, //!< IQ_SINK_STATUS_ACTIVE IQ sink block is active
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} iq_sink_status_t;
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iq_sink_status_t d_status;
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size_t d_num_points;
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float d_scale;
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int16_t *d_out;
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const char *d_filename;
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public:
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iq_sink_impl (const float scale, const char *filename, bool append,
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const int status);
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~iq_sink_impl ();
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int
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work (int noutput_items, gr_vector_const_void_star &input_items,
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gr_vector_void_star &output_items);
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};
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} // namespace satnogs
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} // namespace gr
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#endif /* INCLUDED_SATNOGS_IQ_SINK_IMPL_H */
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@ -35,6 +35,7 @@
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#include "satnogs/ogg_source.h"
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#include "satnogs/noaa_apt_sink.h"
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#include "satnogs/frame_file_sink.h"
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#include "satnogs/iq_sink.h"
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%}
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@ -109,3 +110,5 @@ GR_SWIG_BLOCK_MAGIC2(satnogs, ogg_source);
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GR_SWIG_BLOCK_MAGIC2(satnogs, noaa_apt_sink);
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%include "satnogs/frame_file_sink.h"
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GR_SWIG_BLOCK_MAGIC2(satnogs, frame_file_sink);
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%include "satnogs/iq_sink.h"
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GR_SWIG_BLOCK_MAGIC2(satnogs, iq_sink);
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