snapcast/server/streamServer.h
2016-01-21 21:54:34 +01:00

115 lines
3.3 KiB
C++

/***
This file is part of snapcast
Copyright (C) 2015 Johannes Pohl
This program 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.
This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
***/
#ifndef STREAM_SERVER_H
#define STREAM_SERVER_H
#include <asio.hpp>
#include <vector>
#include <thread>
#include <memory>
#include <set>
#include <sstream>
#include <mutex>
#include "streamSession.h"
#include "pcmreader/pipeReader.h"
#include "common/queue.h"
#include "message/message.h"
#include "message/header.h"
#include "message/sampleFormat.h"
#include "message/serverSettings.h"
#include "controlServer.h"
using asio::ip::tcp;
typedef std::shared_ptr<tcp::socket> socket_ptr;
struct StreamServerSettings
{
StreamServerSettings() :
port(1704),
controlPort(1705),
codec("flac"),
bufferMs(1000),
sampleFormat("48000:16:2"),
pipeReadMs(20)
{
}
size_t port;
size_t controlPort;
std::vector<std::string> pcmStreams;
std::string codec;
int32_t bufferMs;
msg::SampleFormat sampleFormat;
size_t pipeReadMs;
};
/// Forwars PCM data to the connected clients
/**
* Reads PCM data using PipeReader, implements PcmListener to get the (encoded) PCM stream.
* Accepts and holds client connections (StreamSession)
* Receives (via the MessageReceiver interface) and answers messages from the clients
* Forwards PCM data to the clients
*/
class StreamServer : public MessageReceiver, ControlMessageReceiver, PcmListener
{
public:
StreamServer(asio::io_service* io_service, const StreamServerSettings& streamServerSettings);
virtual ~StreamServer();
void start();
void stop();
/// Send a message to all connceted clients
void send(const msg::BaseMessage* message);
/// Clients call this when they receive a message. Implementation of MessageReceiver::onMessageReceived
virtual void onMessageReceived(StreamSession* connection, const msg::BaseMessage& baseMessage, char* buffer);
virtual void onDisconnect(StreamSession* connection);
/// Implementation of ControllMessageReceiver::onMessageReceived, called by ControlServer::onMessageReceived
virtual void onMessageReceived(ControlSession* connection, const std::string& message);
/// Implementation of PcmListener
virtual void onChunkRead(const PcmReader* pcmReader, const msg::PcmChunk* chunk, double duration);
virtual void onResync(const PcmReader* pcmReader, double ms);
private:
void startAccept();
void handleAccept(socket_ptr socket);
StreamSession* getStreamSession(const std::string& mac);
mutable std::mutex mutex_;
std::unique_ptr<PcmReader> pcmReader_;
std::set<std::shared_ptr<StreamSession>> sessions_;
asio::io_service* io_service_;
std::shared_ptr<tcp::acceptor> acceptor_;
StreamServerSettings settings_;
msg::SampleFormat sampleFormat_;
Queue<std::shared_ptr<msg::BaseMessage>> messages_;
std::unique_ptr<ControlServer> controlServer_;
};
#endif