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65 lines
2 KiB
C++
65 lines
2 KiB
C++
/***
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This file is part of snapcast
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Copyright (C) 2014-2019 Johannes Pohl
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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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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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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 PROCESS_STREAM_H
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#define PROCESS_STREAM_H
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#include <memory>
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#include <string>
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#include "pcm_stream.hpp"
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#include "process.hpp"
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// TODO: switch to AsioStream, maybe use boost::process library
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/// Starts an external process and reads and PCM data from stdout
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/**
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* Starts an external process, reads PCM data from stdout, and passes the data to an encoder.
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* Implements EncoderListener to get the encoded data.
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* Data is passed to the PcmListener
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*/
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class ProcessStream : public PcmStream
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{
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public:
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/// ctor. Encoded PCM data is passed to the PipeListener
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ProcessStream(PcmListener* pcmListener, boost::asio::io_context& ioc, const StreamUri& uri);
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~ProcessStream() override;
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void start() override;
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void stop() override;
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protected:
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std::string exe_;
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std::string path_;
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std::string params_;
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std::unique_ptr<Process> process_;
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std::thread stderrReaderThread_;
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bool logStderr_;
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size_t dryoutMs_;
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void worker() override;
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virtual void stderrReader();
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virtual void onStderrMsg(const char* buffer, size_t n);
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virtual void initExeAndPath(const std::string& filename);
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bool fileExists(const std::string& filename);
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std::string findExe(const std::string& filename);
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};
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#endif
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