Qmmp
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qmmpaudioengine_p.h
1/***************************************************************************
2 * Copyright (C) 2009-2022 by Ilya Kotov *
3 * forkotov02@ya.ru *
4 * *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
19 ***************************************************************************/
20
21#ifndef QMMPAUDIOENGINE_P_H
22#define QMMPAUDIOENGINE_P_H
23
24#include <QQueue>
25#include <QHash>
26#include <atomic>
27#include <QSharedPointer>
28#include "abstractengine.h"
29#include "trackinfo.h"
30#include "audioparameters.h"
31
32class QIODevice;
33class OutputWriter;
34class Effect;
35class DecoderFactory;
36class StateHandler;
37class Decoder;
38class InputSource;
39class EffectFactory;
40class ReplayGain;
41class QmmpSettings;
42class AudioConverter;
43class Dithering;
44
48class QmmpAudioEngine : public AbstractEngine
49{
50Q_OBJECT
51public:
52 QmmpAudioEngine(QObject *parent);
53 ~QmmpAudioEngine();
54
55 bool play() override;
56 bool enqueue(InputSource *source) override;
57 void seek(qint64 time) override;
58 void stop() override;
59 void pause() override;
60 void addEffect(EffectFactory *factory);
61 void removeEffect(EffectFactory *factory);
62
63 static QmmpAudioEngine *instance();
64
65private slots:
66 void finish();
67 void updateReplayGainSettings();
68 void updateAudioSettings();
69 void updateEqSettings();
70
71private:
72 void run() override;
73 void reset();
74 void clearDecoders();
75 void flush(bool = false);
76 void addOffset();
77 qint64 produceSound(unsigned char *data, qint64 size, quint32 brate);
78 void attachMetaData(Decoder *decoder, DecoderFactory *factory, InputSource *source);
79 OutputWriter *createOutput();
80 void prepareEffects(Decoder *d);
81
82 DecoderFactory *m_factory = nullptr;
83 QList<Effect*> m_effects;
84 QList<Effect*> m_blockedEffects;
85 OutputWriter *m_output = nullptr;
86
87 std::atomic_bool m_done, m_finish, m_user_stop;
88 uint m_bks = 0, m_sample_size = 0;
89 qint64 m_seekTime;
90 quint64 m_output_at, m_output_size = 0;
91 int m_bitrate;
92 unsigned char *m_output_buf = nullptr;
93 Decoder *m_decoder = nullptr;
94 QQueue <Decoder*> m_decoders;
95 QHash <Decoder*, InputSource*> m_inputs;
96 AudioParameters m_ap;
97 bool m_next;
98 QSharedPointer<TrackInfo> m_trackInfo;
99 static QmmpAudioEngine *m_instance;
100 ReplayGain *m_replayGain = nullptr;
101 QmmpSettings *m_settings;
102 AudioConverter *m_converter;
103 Dithering *m_dithering = nullptr;
104};
105
106#endif // QMMPAUDIOENGINE_P_H
The AbstractEngine class provides the base interface class of audio audio engines.
Definition abstractengine.h:40
The AbstractEngine class provides the internal audio converter.
Definition audioconverter.h:31
The AudioParameters class keeps information about audio settings.
Definition audioparameters.h:32
Input plugin interface (decoder factory).
Definition decoderfactory.h:54
The Decoder class provides the base interface class of audio decoders.
Definition decoder.h:26
Effect plugin interface (effect factory).
Definition effectfactory.h:56
The Effect class provides the base interface class of audio effects.
Definition effect.h:36
The InputSource class provides the base interface class of transports.
Definition inputsource.h:39
The QmmpSettings class provides access to global settings.
Definition qmmpsettings.h:36
The StateHandler class allows one to track information about playback progress.
Definition statehandler.h:35