mirror of
https://github.com/badaix/snapcast.git
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92 lines
2.5 KiB
C++
92 lines
2.5 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 AIRPLAY_STREAM_H
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#define AIRPLAY_STREAM_H
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#include "process_stream.hpp"
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/*
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* Expat is used in metadata parsing from Shairport-sync.
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* Without HAS_EXPAT defined no parsing will occur.
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*/
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#ifdef HAS_EXPAT
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#include <expat.h>
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#endif
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class TageEntry
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{
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public:
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TageEntry() : isBase64(false), length(0)
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{
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}
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std::string code;
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std::string type;
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std::string data;
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bool isBase64;
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int length;
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};
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/// Starts shairport-sync and reads PCM data from stdout
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/**
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* Starts librespot, 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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* usage:
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* snapserver -s "airplay:///shairport-sync?name=Airplay[&devicename=Snapcast][&port=5000]"
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*/
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class AirplayStream : public ProcessStream
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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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AirplayStream(PcmListener* pcmListener, const StreamUri& uri);
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~AirplayStream() override;
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protected:
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#ifdef HAS_EXPAT
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XML_Parser parser_;
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#endif
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std::unique_ptr<TageEntry> entry_;
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std::string buf_;
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json jtag_;
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void pipeReader();
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#ifdef HAS_EXPAT
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int parse(std::string line);
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void createParser();
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void push();
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#endif
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void onStderrMsg(const char* buffer, size_t n) override;
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void initExeAndPath(const std::string& filename) override;
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size_t port_;
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std::string pipePath_;
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std::string params_wo_port_;
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std::thread pipeReaderThread_;
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#ifdef HAS_EXPAT
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static void XMLCALL element_start(void* userdata, const char* element_name, const char** attr);
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static void XMLCALL element_end(void* userdata, const char* element_name);
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static void XMLCALL data(void* userdata, const char* content, int length);
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#endif
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};
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#endif
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