mirror of
https://github.com/badaix/snapcast.git
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250 lines
8.7 KiB
C++
250 lines
8.7 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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#include "controller.hpp"
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#include "decoder/pcm_decoder.hpp"
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#include <iostream>
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#include <memory>
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#include <string>
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#if defined(HAS_OGG) && (defined(HAS_TREMOR) || defined(HAS_VORBIS))
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#include "decoder/ogg_decoder.hpp"
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#endif
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#if defined(HAS_FLAC)
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#include "decoder/flac_decoder.hpp"
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#endif
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#include "common/aixlog.hpp"
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#include "common/snap_exception.hpp"
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#include "message/hello.h"
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#include "message/time.h"
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#include "time_provider.hpp"
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using namespace std;
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Controller::Controller(const std::string& hostId, size_t instance, std::shared_ptr<MetadataAdapter> meta)
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: MessageReceiver(), hostId_(hostId), instance_(instance), active_(false), latency_(0), stream_(nullptr), decoder_(nullptr), player_(nullptr), meta_(meta),
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serverSettings_(nullptr), async_exception_(nullptr)
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{
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}
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void Controller::onException(ClientConnection* connection, shared_exception_ptr exception)
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{
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LOG(ERROR) << "Controller::onException: " << exception->what() << "\n";
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async_exception_ = exception;
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}
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void Controller::onMessageReceived(ClientConnection* connection, const msg::BaseMessage& baseMessage, char* buffer)
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{
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std::lock_guard<std::mutex> lock(receiveMutex_);
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if (baseMessage.type == message_type::kWireChunk)
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{
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if (stream_ && decoder_)
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{
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auto* pcmChunk = new msg::PcmChunk(sampleFormat_, 0);
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pcmChunk->deserialize(baseMessage, buffer);
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// LOG(DEBUG) << "chunk: " << pcmChunk->payloadSize << ", sampleFormat: " << sampleFormat_.rate << "\n";
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if (decoder_->decode(pcmChunk))
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{
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// TODO: do decoding in thread?
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stream_->addChunk(pcmChunk);
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// LOG(DEBUG) << ", decoded: " << pcmChunk->payloadSize << ", Duration: " << pcmChunk->getDuration() << ", sec: " << pcmChunk->timestamp.sec <<
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// ", usec: " << pcmChunk->timestamp.usec/1000 << ", type: " << pcmChunk->type << "\n";
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}
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else
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delete pcmChunk;
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}
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}
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else if (baseMessage.type == message_type::kTime)
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{
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msg::Time reply;
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reply.deserialize(baseMessage, buffer);
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TimeProvider::getInstance().setDiff(reply.latency, reply.received - reply.sent); // ToServer(diff / 2);
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}
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else if (baseMessage.type == message_type::kServerSettings)
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{
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serverSettings_.reset(new msg::ServerSettings());
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serverSettings_->deserialize(baseMessage, buffer);
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LOG(INFO) << "ServerSettings - buffer: " << serverSettings_->getBufferMs() << ", latency: " << serverSettings_->getLatency()
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<< ", volume: " << serverSettings_->getVolume() << ", muted: " << serverSettings_->isMuted() << "\n";
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if (stream_ && player_)
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{
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player_->setVolume(serverSettings_->getVolume() / 100.);
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player_->setMute(serverSettings_->isMuted());
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stream_->setBufferLen(serverSettings_->getBufferMs() - serverSettings_->getLatency());
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}
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}
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else if (baseMessage.type == message_type::kCodecHeader)
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{
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headerChunk_.reset(new msg::CodecHeader());
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headerChunk_->deserialize(baseMessage, buffer);
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LOG(INFO) << "Codec: " << headerChunk_->codec << "\n";
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decoder_.reset(nullptr);
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stream_ = nullptr;
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player_.reset(nullptr);
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if (headerChunk_->codec == "pcm")
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decoder_.reset(new PcmDecoder());
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#if defined(HAS_OGG) && (defined(HAS_TREMOR) || defined(HAS_VORBIS))
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else if (headerChunk_->codec == "ogg")
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decoder_.reset(new OggDecoder());
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#endif
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#if defined(HAS_FLAC)
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else if (headerChunk_->codec == "flac")
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decoder_.reset(new FlacDecoder());
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#endif
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else
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throw SnapException("codec not supported: \"" + headerChunk_->codec + "\"");
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sampleFormat_ = decoder_->setHeader(headerChunk_.get());
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LOG(NOTICE) << TAG("state") << "sampleformat: " << sampleFormat_.rate << ":" << sampleFormat_.bits << ":" << sampleFormat_.channels << "\n";
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stream_ = make_shared<Stream>(sampleFormat_);
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stream_->setBufferLen(serverSettings_->getBufferMs() - latency_);
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#ifdef HAS_ALSA
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player_.reset(new AlsaPlayer(pcmDevice_, stream_));
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#elif HAS_OPENSL
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player_.reset(new OpenslPlayer(pcmDevice_, stream_));
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#elif HAS_COREAUDIO
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player_.reset(new CoreAudioPlayer(pcmDevice_, stream_));
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#else
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throw SnapException("No audio player support");
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#endif
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player_->setVolume(serverSettings_->getVolume() / 100.);
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player_->setMute(serverSettings_->isMuted());
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player_->start();
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}
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else if (baseMessage.type == message_type::kStreamTags)
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{
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streamTags_.reset(new msg::StreamTags());
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streamTags_->deserialize(baseMessage, buffer);
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if (meta_)
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meta_->push(streamTags_->msg);
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}
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if (baseMessage.type != message_type::kTime)
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if (sendTimeSyncMessage(1000))
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LOG(DEBUG) << "time sync onMessageReceived\n";
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}
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bool Controller::sendTimeSyncMessage(long after)
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{
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static long lastTimeSync(0);
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long now = chronos::getTickCount();
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if (lastTimeSync + after > now)
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return false;
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lastTimeSync = now;
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msg::Time timeReq;
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clientConnection_->send(&timeReq);
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return true;
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}
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void Controller::start(const PcmDevice& pcmDevice, const std::string& host, size_t port, int latency)
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{
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pcmDevice_ = pcmDevice;
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latency_ = latency;
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clientConnection_.reset(new ClientConnection(this, host, port));
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controllerThread_ = thread(&Controller::worker, this);
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}
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void Controller::stop()
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{
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LOG(DEBUG) << "Stopping Controller" << endl;
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active_ = false;
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controllerThread_.join();
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clientConnection_->stop();
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}
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void Controller::worker()
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{
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active_ = true;
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while (active_)
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{
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try
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{
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clientConnection_->start();
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string macAddress = clientConnection_->getMacAddress();
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if (hostId_.empty())
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hostId_ = ::getHostId(macAddress);
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/// Say hello to the server
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msg::Hello hello(macAddress, hostId_, instance_);
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clientConnection_->send(&hello);
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/// Do initial time sync with the server
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msg::Time timeReq;
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for (size_t n = 0; n < 50 && active_; ++n)
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{
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if (async_exception_)
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{
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LOG(DEBUG) << "Async exception: " << async_exception_->what() << "\n";
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throw SnapException(async_exception_->what());
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}
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shared_ptr<msg::Time> reply = clientConnection_->sendReq<msg::Time>(&timeReq, chronos::msec(2000));
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if (reply)
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{
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TimeProvider::getInstance().setDiff(reply->latency, reply->received - reply->sent);
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chronos::usleep(100);
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}
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}
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LOG(INFO) << "diff to server [ms]: " << (float)TimeProvider::getInstance().getDiffToServer<chronos::usec>().count() / 1000.f << "\n";
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/// Main loop
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while (active_)
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{
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LOG(DEBUG) << "Main loop\n";
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for (size_t n = 0; n < 10 && active_; ++n)
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{
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chronos::sleep(100);
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if (async_exception_)
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{
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LOG(DEBUG) << "Async exception: " << async_exception_->what() << "\n";
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throw SnapException(async_exception_->what());
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}
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}
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if (sendTimeSyncMessage(5000))
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LOG(DEBUG) << "time sync main loop\n";
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}
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}
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catch (const std::exception& e)
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{
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async_exception_ = nullptr;
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SLOG(ERROR) << "Exception in Controller::worker(): " << e.what() << endl;
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clientConnection_->stop();
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player_.reset();
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stream_.reset();
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decoder_.reset();
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for (size_t n = 0; (n < 10) && active_; ++n)
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chronos::sleep(100);
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}
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}
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LOG(DEBUG) << "Thread stopped\n";
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}
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