143 lines
3.0 KiB
C++
143 lines
3.0 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop 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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It 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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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
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*/
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#pragma once
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#include "base/timer.h"
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namespace Media {
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namespace Audio {
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class Instance;
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class Track {
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public:
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Track(gsl::not_null<Instance*> instance);
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void samplePeakEach(TimeMs peakDuration);
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void fillFromData(base::byte_vector &&data);
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void fillFromFile(const FileLocation &location);
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void fillFromFile(const QString &filePath);
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void playOnce() {
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playWithLooping(false);
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}
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void playInLoop() {
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playWithLooping(true);
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}
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bool isLooping() const {
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return _looping;
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}
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bool isActive() const {
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return _active;
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}
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bool failed() const {
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return _failed;
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}
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int64 getLengthMs() const {
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return _lengthMs;
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}
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float64 getPeakValue(TimeMs when) const;
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void detachFromDevice();
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void reattachToDevice();
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void updateState();
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~Track();
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private:
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void finish();
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void ensureSourceCreated();
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void playWithLooping(bool looping);
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gsl::not_null<Instance*> _instance;
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bool _failed = false;
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bool _active = false;
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bool _looping = false;
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float64 _volume = 1.;
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int64 _samplesCount = 0;
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int32 _sampleRate = 0;
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base::byte_vector _samples;
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TimeMs _peakDurationMs = 0;
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int _peakEachPosition = 0;
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std::vector<uint16> _peaks;
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uint16 _peakValueMin = 0;
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uint16 _peakValueMax = 0;
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TimeMs _lengthMs = 0;
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TimeMs _stateUpdatedAt = 0;
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int32 _alFormat = 0;
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int64 _alPosition = 0;
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uint32 _alSource = 0;
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uint32 _alBuffer = 0;
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};
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class Instance {
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public:
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// Thread: Main.
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Instance();
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std::unique_ptr<Track> createTrack();
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base::Observable<Track*> &trackFinished() {
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return _trackFinished;
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}
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void detachTracks();
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void reattachTracks();
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bool hasActiveTracks() const;
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void scheduleDetachFromDevice();
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void scheduleDetachIfNotUsed();
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void stopDetachIfNotUsed();
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~Instance();
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private:
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friend class Track;
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void registerTrack(Track *track);
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void unregisterTrack(Track *track);
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void trackStarted(Track *track);
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void trackFinished(Track *track);
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private:
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std::set<Track*> _tracks;
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base::Observable<Track*> _trackFinished;
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base::Timer _updateTimer;
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base::Timer _detachFromDeviceTimer;
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bool _detachFromDeviceForce = false;
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};
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Instance &Current();
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} // namespace Audio
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} // namespace Media
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