mirror of
https://github.com/badaix/snapcast.git
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9bb1c4a041
Controller uses the asio io_context and thus uses one thread less. This also fixes a lot of thread sanitizer issues.
347 lines
13 KiB
C++
347 lines
13 KiB
C++
/***
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This file is part of snapcast
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Copyright (C) 2014-2020 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 NOMINMAX
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#define NOMINMAX
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#endif // NOMINMAX
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#include "controller.hpp"
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#include "decoder/pcm_decoder.hpp"
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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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#if defined(HAS_OPUS)
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#include "decoder/opus_decoder.hpp"
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#endif
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#include "browseZeroConf/browse_mdns.hpp"
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#include "common/aixlog.hpp"
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#include "common/snap_exception.hpp"
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#include "message/client_settings.hpp"
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#include "message/hello.hpp"
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#include "message/time.hpp"
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#include "time_provider.hpp"
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#include <algorithm>
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#include <iostream>
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#include <memory>
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#include <string>
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using namespace std;
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static constexpr auto LOG_TAG = "Controller";
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Controller::Controller(boost::asio::io_context& io_context, const ClientSettings& settings, std::unique_ptr<MetadataAdapter> meta)
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: io_context_(io_context), timer_(io_context), settings_(settings), stream_(nullptr), decoder_(nullptr), player_(nullptr), meta_(std::move(meta)),
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serverSettings_(nullptr)
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{
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}
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void Controller::getNextMessage()
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{
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clientConnection_->getNextMessage([this](const boost::system::error_code& ec, std::unique_ptr<msg::BaseMessage> response) {
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if (!ec)
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{
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if (response->type == message_type::kWireChunk)
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{
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if (stream_ && decoder_)
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{
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// auto wireChunk = msg::message_cast<msg::WireChunk>(std::move(response));
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auto pcmChunk = msg::message_cast<msg::PcmChunk>(std::move(response));
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pcmChunk->format = sampleFormat_;
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// std::make_unique<msg::PcmChunk>(sampleFormat_, *wireChunk);
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// pcmChunk->deserialize(baseMessage, buffer);
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// LOG(TRACE, LOG_TAG) << "chunk: " << pcmChunk->payloadSize << ", sampleFormat: " << sampleFormat_.getFormat() << "\n";
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if (decoder_->decode(pcmChunk.get()))
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{
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// LOG(TRACE, LOG_TAG) << ", decoded: " << pcmChunk->payloadSize << ", Duration: " << pcmChunk->durationMs()
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// << ", sec: " << pcmChunk->timestamp.sec << ", usec: " << pcmChunk->timestamp.usec / 1000 << ", type: " <<
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// pcmChunk->type
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// << "\n";
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stream_->addChunk(std::move(pcmChunk));
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}
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}
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}
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else if (response->type == message_type::kTime)
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{
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// should not be called, because timeSync messages are sent as request, so that the response will go there
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LOG(DEBUG, LOG_TAG) << "Received time sync message\n";
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auto reply = msg::message_cast<msg::Time>(std::move(response));
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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 (response->type == message_type::kServerSettings)
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{
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serverSettings_ = msg::message_cast<msg::ServerSettings>(std::move(response));
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LOG(INFO, LOG_TAG) << "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(std::max(0, serverSettings_->getBufferMs() - serverSettings_->getLatency() - settings_.player.latency));
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}
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}
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else if (response->type == message_type::kCodecHeader)
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{
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headerChunk_ = msg::message_cast<msg::CodecHeader>(std::move(response));
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LOG(INFO, LOG_TAG) << "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_ = make_unique<decoder::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_ = make_unique<decoder::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_ = make_unique<decoder::FlacDecoder>();
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#endif
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#if defined(HAS_OPUS)
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else if (headerChunk_->codec == "opus")
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decoder_ = make_unique<decoder::OpusDecoder>();
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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, LOG_TAG) << TAG("state") << "sampleformat: " << sampleFormat_.getFormat() << "\n";
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stream_ = make_shared<Stream>(sampleFormat_, settings_.player.sample_format);
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stream_->setBufferLen(std::max(0, serverSettings_->getBufferMs() - serverSettings_->getLatency() - settings_.player.latency));
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const auto& player_settings = settings_.player;
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const auto& player_name = settings_.player.player_name;
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player_ = nullptr;
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#ifdef HAS_ALSA
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if (!player_ && (player_name.empty() || (player_name == "alsa")))
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player_ = make_unique<AlsaPlayer>(io_context_, player_settings, stream_);
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#endif
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#ifdef HAS_OBOE
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if (!player_ && (player_name.empty() || (player_name == "oboe")))
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player_ = make_unique<OboePlayer>(io_context_, player_settings, stream_);
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#endif
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#ifdef HAS_OPENSL
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if (!player_ && (player_name.empty() || (player_name == "opensl")))
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player_ = make_unique<OpenslPlayer>(io_context_, player_settings, stream_);
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#endif
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#ifdef HAS_COREAUDIO
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if (!player_ && (player_name.empty() || (player_name == "coreaudio")))
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player_ = make_unique<CoreAudioPlayer>(io_context_, player_settings, stream_);
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#endif
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#ifdef HAS_WASAPI
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if (!player_ && (player_name.empty() || (player_name == "wasapi")))
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player_ = make_unique<WASAPIPlayer>(io_context_, player_settings, stream_);
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#endif
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if (!player_)
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throw SnapException("No audio player support");
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player_->setVolumeCallback([this](double volume, bool muted) {
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auto settings = std::make_shared<msg::ClientSettings>();
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settings->setVolume(static_cast<uint16_t>(volume * 100.));
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settings->setMuted(muted);
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clientConnection_->send(settings, [this](const boost::system::error_code& ec) {
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if (ec)
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{
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LOG(ERROR, LOG_TAG) << "Failed to send client settings, error: " << ec.message() << "\n";
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reconnect();
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return;
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}
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});
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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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player_->start();
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}
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else if (response->type == message_type::kStreamTags)
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{
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if (meta_)
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{
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auto stream_tags = msg::message_cast<msg::StreamTags>(std::move(response));
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meta_->push(stream_tags->msg);
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}
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}
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getNextMessage();
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}
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else
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{
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reconnect();
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}
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});
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}
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void Controller::sendTimeSyncMessage(int quick_syncs)
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{
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auto timeReq = std::make_shared<msg::Time>();
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clientConnection_->sendRequest<msg::Time>(
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timeReq, 2s, [this, quick_syncs](const boost::system::error_code& ec, const std::unique_ptr<msg::Time>& response) mutable {
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if (ec)
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{
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LOG(ERROR, LOG_TAG) << "Time sync request failed: " << ec.message() << "\n";
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reconnect();
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return;
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}
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else
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{
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TimeProvider::getInstance().setDiff(response->latency, response->received - response->sent);
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}
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std::chrono::microseconds next = 1s;
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if (quick_syncs > 0)
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{
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if (--quick_syncs == 0)
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LOG(INFO, LOG_TAG) << "diff to server [ms]: " << (float)TimeProvider::getInstance().getDiffToServer<chronos::usec>().count() / 1000.f
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<< "\n";
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next = 100us;
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}
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timer_.expires_after(next);
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timer_.async_wait([this, quick_syncs](const boost::system::error_code& ec) {
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if (!ec)
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{
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sendTimeSyncMessage(quick_syncs);
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}
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});
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});
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}
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void Controller::browseMdns(const MdnsHandler& handler)
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{
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#if defined(HAS_AVAHI) || defined(HAS_BONJOUR)
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try
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{
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BrowseZeroConf browser;
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mDNSResult avahiResult;
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if (browser.browse("_snapcast._tcp", avahiResult, 1000))
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{
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string host = avahiResult.ip;
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uint16_t port = avahiResult.port;
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if (avahiResult.ip_version == IPVersion::IPv6)
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host += "%" + cpt::to_string(avahiResult.iface_idx);
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handler({}, host, port);
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return;
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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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LOG(ERROR, LOG_TAG) << "Exception: " << e.what() << std::endl;
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}
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timer_.expires_after(500ms);
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timer_.async_wait([this, handler](const boost::system::error_code& ec) {
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if (!ec)
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{
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browseMdns(handler);
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}
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else
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{
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handler(ec, "", 0);
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}
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});
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#else
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handler(boost::asio::error::operation_not_supported, "", 0);
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#endif
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}
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void Controller::start()
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{
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if (settings_.server.host.empty())
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{
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browseMdns([this](const boost::system::error_code& ec, const std::string& host, uint16_t port) {
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if (ec)
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{
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LOG(ERROR, LOG_TAG) << "Failed to browse MDNS, error: " << ec.message() << "\n";
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}
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else
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{
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settings_.server.host = host;
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settings_.server.port = port;
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LOG(INFO, LOG_TAG) << "Found server " << settings_.server.host << ":" << settings_.server.port << "\n";
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clientConnection_ = make_unique<ClientConnection>(io_context_, settings_.server);
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worker();
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}
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});
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}
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else
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{
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clientConnection_ = make_unique<ClientConnection>(io_context_, settings_.server);
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worker();
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}
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}
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// void Controller::stop()
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// {
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// LOG(DEBUG, LOG_TAG) << "Stopping\n";
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// timer_.cancel();
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// }
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void Controller::reconnect()
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{
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timer_.cancel();
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clientConnection_->disconnect();
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player_.reset();
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stream_.reset();
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decoder_.reset();
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timer_.expires_after(1s);
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timer_.async_wait([this](const boost::system::error_code& ec) {
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if (!ec)
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{
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worker();
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}
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});
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}
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void Controller::worker()
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{
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clientConnection_->connect([this](const boost::system::error_code& ec) {
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if (!ec)
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{
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LOG(INFO, LOG_TAG) << "Connected!\n";
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string macAddress = clientConnection_->getMacAddress();
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if (settings_.host_id.empty())
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settings_.host_id = ::getHostId(macAddress);
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// Say hello to the server
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auto hello = std::make_shared<msg::Hello>(macAddress, settings_.host_id, settings_.instance);
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clientConnection_->send(hello, [this](const boost::system::error_code& ec) {
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if (ec)
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{
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LOG(ERROR, LOG_TAG) << "Failed to send hello, error: " << ec.message() << "\n";
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reconnect();
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return;
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}
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});
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// // Do initial time sync with the server
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sendTimeSyncMessage(50);
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getNextMessage();
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}
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else
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{
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LOG(ERROR, LOG_TAG) << "Error: " << ec.message() << "\n";
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reconnect();
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}
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});
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}
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