98 lines
3.2 KiB
C++
98 lines
3.2 KiB
C++
/*
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* Copyright (C) 2026 Emeric Poupon
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*
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* This file is part of LMS.
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*
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* LMS 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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*
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* LMS 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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*
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* You should have received a copy of the GNU General Public License
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* along with LMS. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <chrono>
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#include <optional>
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#include <shared_mutex>
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#include <vector>
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#include <boost/asio/io_context.hpp>
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#include "core/IOContextRunner.hpp"
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#include "audio/IAudioOutput.hpp"
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#include "audio/utils/IPcmDecodeStreamer.hpp"
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#include "services/jukebox/IJukeboxService.hpp"
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namespace lms::jukebox
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{
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class JukeboxService : public IJukeboxService
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{
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public:
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JukeboxService(db::IDb& db, audio::AudioOutputBackend backend);
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~JukeboxService() override;
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JukeboxService(const JukeboxService&) = delete;
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JukeboxService& operator=(const JukeboxService&) = delete;
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private:
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void play(std::size_t trackIndex, std::chrono::microseconds offset) override;
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void pause() override;
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void resume() override;
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bool isPaused() const override;
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void setVolume(float volume) override;
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float getVolume() const override;
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std::optional<std::size_t> getCurrentTrackIndex() const override;
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std::chrono::microseconds getPlaybackTrackTime() const override;
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// Play queue control
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void clearTracks() override;
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void removeTrack(std::size_t index) override;
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void appendTracks(std::span<const db::TrackId> tracks) override;
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void shuffleTracks() override;
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std::vector<db::TrackId> getTracks() const override;
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void onContextReady();
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void onStreamReady();
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bool startDecoder(std::size_t trackIndex, std::chrono::microseconds offset = {});
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void abortDecoder();
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void onDecodeFinished(bool aborted);
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// TODO: make configurable or use detected output params
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static inline constexpr audio::PcmParameters _pcmParams{
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.channelCount = 2,
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.sampleRate = 44100,
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.sampleType = audio::PcmSampleType::Signed16,
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.byteOrder = std::endian::little,
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.planar = false,
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};
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mutable std::shared_mutex _mutex;
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std::vector<db::TrackId> _tracks; // protected by mutex
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std::optional<std::size_t> _currentTrackIndex; // protected by mutex
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std::chrono::microseconds _currentTrackPlaybackTimeOffset{};
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std::chrono::microseconds _currentTrackStartTimeOffset{};
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boost::asio::io_context _ioContext;
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core::IOContextRunner _ioContextRunner;
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db::IDb& _db;
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std::unique_ptr<audio::IAudioOutputContext> _outputContext;
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std::unique_ptr<audio::IAudioOutputStream> _outputStream;
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std::unique_ptr<audio::utils::IPcmDecodeStreamer> _decoder;
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};
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} // namespace lms::jukebox
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