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+/*
+ Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Her Majesty the
+ Queen in Right of Canada (Communications Research Center Canada)
+
+ Copyright (C) 2017
+ Matthias P. Braendli, matthias.braendli@mpb.li
+
+ http://opendigitalradio.org
+
+DESCRIPTION:
+ It is an output driver using the SoapySDR library that can output to
+ many devices.
+*/
+
+/*
+ This file is part of ODR-DabMod.
+
+ ODR-DabMod 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.
+
+ ODR-DabMod 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 ODR-DabMod. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#ifdef HAVE_SOAPYSDR
+#include <SoapySDR/Version.hpp>
+#include <SoapySDR/Modules.hpp>
+#include <SoapySDR/Registry.hpp>
+#include <SoapySDR/Device.hpp>
+
+#include <string>
+#include <memory>
+
+#include "ModPlugin.h"
+#include "EtiReader.h"
+#include "RemoteControl.h"
+#include "ThreadsafeQueue.h"
+
+typedef std::complex<float> complexf;
+
+/* This structure is used as initial configuration for the Soapy output.
+ * It must also contain all remote-controllable settings, otherwise
+ * they will get lost on a modulator restart. */
+struct OutputSoapyConfig {
+ std::string device;
+
+ long masterClockRate = 32768000;
+ unsigned sampleRate = 2048000;
+ double frequency = 0.0;
+ double txgain = 0.0;
+ unsigned dabMode = 0;
+};
+
+// Each frame contains one OFDM frame, and its
+// associated timestamp
+struct SoapyWorkerFrameData {
+ // Buffer holding frame data
+ std::vector<uint8_t> buf;
+
+ // A full timestamp contains a TIST according to standard
+ // and time information within MNSC with tx_second.
+ struct frame_timestamp ts;
+};
+
+class SoapyWorker
+{
+ public:
+ ThreadsafeQueue<SoapyWorkerFrameData> queue;
+ SoapySDR::Device *m_device;
+ std::atomic<bool> running;
+ size_t underflows;
+ size_t overflows;
+
+ SoapyWorker() {}
+ SoapyWorker(const SoapyWorker&) = delete;
+ SoapyWorker operator=(const SoapyWorker&) = delete;
+ ~SoapyWorker() { stop(); }
+
+ void start(SoapySDR::Device *device);
+ void stop(void);
+
+ private:
+ std::thread m_thread;
+
+ void process_start(void);
+ void process(SoapySDR::Stream *stream);
+};
+
+class OutputSoapy: public ModOutput, public RemoteControllable
+{
+ public:
+ OutputSoapy(OutputSoapyConfig& config);
+ OutputSoapy(const OutputSoapy& other) = delete;
+ OutputSoapy& operator=(const OutputSoapy& other) = delete;
+ ~OutputSoapy();
+
+ int process(Buffer* dataIn);
+
+ const char* name() { return "OutputSoapy"; }
+
+ void setETISource(EtiSource *etiSource);
+
+ /*********** REMOTE CONTROL ***************/
+
+ /* Base function to set parameters. */
+ virtual void set_parameter(const std::string& parameter,
+ const std::string& value);
+
+ /* Getting a parameter always returns a string. */
+ virtual const std::string get_parameter(
+ const std::string& parameter) const;
+
+
+ protected:
+ SoapyWorker m_worker;
+ EtiSource *m_eti_source;
+ OutputSoapyConfig& m_conf;
+
+ SoapySDR::Device *m_device;
+
+ bool first_run = true;
+};
+
+
+#endif //HAVE_SOAPYSDR