Qmmp
/usr/src/RPM/BUILD/qmmp-0.8-svn/src/qmmp/qmmpaudioengine_p.h
00001 /***************************************************************************
00002  *   Copyright (C) 2009-2013 by Ilya Kotov                                 *
00003  *   forkotov02@hotmail.ru                                                 *
00004  *                                                                         *
00005  *   This program is free software; you can redistribute it and/or modify  *
00006  *   it under the terms of the GNU General Public License as published by  *
00007  *   the Free Software Foundation; either version 2 of the License, or     *
00008  *   (at your option) any later version.                                   *
00009  *                                                                         *
00010  *   This program is distributed in the hope that it will be useful,       *
00011  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
00012  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
00013  *   GNU General Public License for more details.                          *
00014  *                                                                         *
00015  *   You should have received a copy of the GNU General Public License     *
00016  *   along with this program; if not, write to the                         *
00017  *   Free Software Foundation, Inc.,                                       *
00018  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
00019  ***************************************************************************/
00020 
00021 #ifndef QMMPAUDIOENGINE_P_H
00022 #define QMMPAUDIOENGINE_P_H
00023 
00024 #include <QQueue>
00025 #include <QHash>
00026 #include "abstractengine.h"
00027 #include "audioparameters.h"
00028 
00029 class QIODevice;
00030 class OutputWriter;
00031 class Effect;
00032 class DecoderFactory;
00033 class StateHandler;
00034 class Decoder;
00035 class InputSource;
00036 class EffectFactory;
00037 class ReplayGain;
00038 class QmmpSettings;
00039 
00043 class QmmpAudioEngine : public AbstractEngine
00044 {
00045 Q_OBJECT
00046 public:
00047     QmmpAudioEngine(QObject *parent);
00048     ~QmmpAudioEngine();
00049 
00050     bool play();
00051     bool enqueue(InputSource *source);
00052     void seek(qint64 time);
00053     void stop();
00054     void pause();
00055     void setMuted(bool muted);
00056     void addEffect(EffectFactory *factory);
00057     void removeEffect(EffectFactory *factory);
00058 
00059     static QmmpAudioEngine *instance();
00060 
00061 private slots:
00062     void finish();
00063     void updateReplayGainSettings();
00064 
00065 private:
00066     void run();
00067     void reset();
00068     void clearDecoders();
00069     void flush(bool = false);
00070     void addOffset();
00071     qint64 produceSound(char *data, qint64 size, quint32 brate);
00072     void sendMetaData();
00073     OutputWriter *createOutput();
00074     void prepareEffects(Decoder *d);
00075 
00076     DecoderFactory *m_factory;
00077     QList <Effect*> m_effects;
00078     QList <Effect*> m_blockedEffects;
00079     OutputWriter *m_output;
00080 
00081     bool m_done, m_finish, m_user_stop;
00082     uint m_bks;
00083     qint64 m_seekTime;
00084     qint64 m_output_at, m_output_size;
00085     int m_bitrate;
00086     unsigned char *m_output_buf;
00087     Decoder *m_decoder;
00088     QQueue <Decoder*> m_decoders;
00089     QHash <Decoder*, InputSource*> m_inputs;
00090     AudioParameters m_ap;
00091     bool m_next;
00092     bool m_muted;
00093     static QmmpAudioEngine *m_instance;
00094     ReplayGain *m_replayGain;
00095     QmmpSettings *m_settings;
00096 };
00097 
00098 #endif // QMMPAUDIOENGINE_P_H
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