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87 lines
2.8 KiB
C++
87 lines
2.8 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 CONTROLLER_H
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#define CONTROLLER_H
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#include "decoder/decoder.hpp"
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#include "message/message.hpp"
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#include "message/server_settings.hpp"
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#include "message/stream_tags.hpp"
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#include "player/pcm_device.hpp"
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#include <atomic>
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#include <thread>
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#ifdef HAS_ALSA
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#include "player/alsa_player.hpp"
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#elif HAS_OPENSL
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#include "player/opensl_player.hpp"
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#elif HAS_COREAUDIO
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#include "player/coreaudio_player.hpp"
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#endif
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#include "client_connection.hpp"
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#include "metadata.hpp"
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#include "stream.hpp"
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/// Forwards PCM data to the audio player
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/**
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* Sets up a connection to the server (using ClientConnection)
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* Sets up the audio decoder and player.
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* Decodes audio (message_type::kWireChunk) and feeds PCM to the audio stream buffer
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* Does timesync with the server
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*/
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class Controller : public MessageReceiver
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{
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public:
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Controller(const std::string& clientId, size_t instance, std::shared_ptr<MetadataAdapter> meta);
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void start(const PcmDevice& pcmDevice, const std::string& host, size_t port, int latency);
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void stop();
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/// Implementation of MessageReceiver.
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/// ClientConnection passes messages from the server through these callbacks
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void onMessageReceived(ClientConnection* connection, const msg::BaseMessage& baseMessage, char* buffer) override;
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/// Implementation of MessageReceiver.
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/// Used for async exception reporting
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void onException(ClientConnection* connection, shared_exception_ptr exception) override;
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private:
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void worker();
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bool sendTimeSyncMessage(long after = 1000);
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std::string hostId_;
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std::string meta_callback_;
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size_t instance_;
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std::atomic<bool> active_;
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std::thread controllerThread_;
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SampleFormat sampleFormat_;
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PcmDevice pcmDevice_;
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int latency_;
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std::unique_ptr<ClientConnection> clientConnection_;
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std::shared_ptr<Stream> stream_;
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std::unique_ptr<decoder::Decoder> decoder_;
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std::unique_ptr<Player> player_;
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std::shared_ptr<MetadataAdapter> meta_;
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std::unique_ptr<msg::ServerSettings> serverSettings_;
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std::unique_ptr<msg::CodecHeader> headerChunk_;
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std::mutex receiveMutex_;
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shared_exception_ptr async_exception_;
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};
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#endif
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