Chris@147: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ Chris@147: Chris@147: /* Chris@147: Sonic Visualiser Chris@147: An audio file viewer and annotation editor. Chris@147: Centre for Digital Music, Queen Mary, University of London. Chris@202: This file copyright 2006 Chris Cannam and QMUL. Chris@147: Chris@147: This program is free software; you can redistribute it and/or Chris@147: modify it under the terms of the GNU General Public License as Chris@147: published by the Free Software Foundation; either version 2 of the Chris@147: License, or (at your option) any later version. See the file Chris@147: COPYING included with this distribution for more information. Chris@147: */ Chris@147: Chris@1122: #ifndef READ_ONLY_WAVE_FILE_MODEL_H Chris@1122: #define READ_ONLY_WAVE_FILE_MODEL_H Chris@1122: Chris@1122: #include "WaveFileModel.h" Chris@147: Chris@150: #include "base/Thread.h" Chris@147: #include Chris@147: #include Chris@147: Chris@317: #include "data/fileio/FileSource.h" Chris@316: Chris@147: #include "RangeSummarisableTimeValueModel.h" Chris@147: #include "PowerOfSqrtTwoZoomConstraint.h" Chris@147: Chris@147: #include Chris@147: Chris@147: class AudioFileReader; Chris@147: Chris@1122: class ReadOnlyWaveFileModel : public WaveFileModel Chris@147: { Chris@147: Q_OBJECT Chris@147: Chris@147: public: Chris@1514: /** Chris@1514: * Construct a WaveFileModel from a source path and optional Chris@1514: * resampling target rate Chris@1514: */ Chris@1122: ReadOnlyWaveFileModel(FileSource source, sv_samplerate_t targetRate = 0); Chris@1514: Chris@1514: /** Chris@1514: * Construct a WaveFileModel from a source path using an existing Chris@1514: * AudioFileReader. The model does not take ownership of the Chris@1514: * AudioFileReader, which remains managed by the caller and must Chris@1514: * outlive the model. Chris@1514: */ Chris@1122: ReadOnlyWaveFileModel(FileSource source, AudioFileReader *reader); Chris@1514: Chris@1122: ~ReadOnlyWaveFileModel(); Chris@147: Chris@1580: bool isOK() const override; Chris@1580: bool isReady(int *) const override; Chris@1671: int getCompletion() const override { Chris@1671: int c = 0; Chris@1671: (void)isReady(&c); Chris@1671: return c; Chris@1671: } Chris@147: Chris@1580: const ZoomConstraint *getZoomConstraint() const override { return &m_zoomConstraint; } Chris@179: Chris@1580: sv_frame_t getFrameCount() const override; Chris@1580: int getChannelCount() const override; Chris@1580: sv_samplerate_t getSampleRate() const override; Chris@1580: sv_samplerate_t getNativeRate() const override; Chris@147: Chris@1580: QString getTitle() const override; Chris@1580: QString getMaker() const override; Chris@1580: QString getLocation() const override; Chris@333: Chris@1010: QString getLocalFilename() const; Chris@1010: Chris@1580: float getValueMinimum() const override { return -1.0f; } Chris@1580: float getValueMaximum() const override { return 1.0f; } Chris@147: Chris@1580: sv_frame_t getStartFrame() const override { return m_startFrame; } Chris@1725: sv_frame_t getTrueEndFrame() const override { return m_startFrame + getFrameCount(); } Chris@147: Chris@1580: void setStartFrame(sv_frame_t startFrame) override { m_startFrame = startFrame; } Chris@147: Chris@1580: floatvec_t getData(int channel, sv_frame_t start, sv_frame_t count) const override; Chris@147: Chris@1580: std::vector getMultiChannelData(int fromchannel, int tochannel, sv_frame_t start, sv_frame_t count) const override; Chris@363: Chris@1580: int getSummaryBlockSize(int desired) const override; Chris@377: Chris@1580: void getSummaries(int channel, sv_frame_t start, sv_frame_t count, Chris@300: RangeBlock &ranges, Chris@1580: int &blockSize) const override; Chris@300: Chris@1580: Range getSummary(int channel, sv_frame_t start, sv_frame_t count) const override; Chris@147: Chris@1580: QString getTypeName() const override { return tr("Wave File"); } Chris@345: Chris@1580: void toXml(QTextStream &out, Chris@163: QString indent = "", Chris@1580: QString extraAttributes = "") const override; Chris@163: Chris@147: protected slots: Chris@147: void fillTimerTimedOut(); Chris@147: void cacheFilled(); Chris@147: Chris@147: protected: Chris@147: void initialize(); Chris@147: Chris@147: class RangeCacheFillThread : public Thread Chris@147: { Chris@147: public: Chris@1122: RangeCacheFillThread(ReadOnlyWaveFileModel &model) : Chris@1406: m_model(model), m_fillExtent(0), Chris@175: m_frameCount(model.getFrameCount()) { } Chris@147: Chris@1406: sv_frame_t getFillExtent() const { return m_fillExtent; } Chris@1580: void run() override; Chris@147: Chris@147: protected: Chris@1122: ReadOnlyWaveFileModel &m_model; Chris@1406: sv_frame_t m_fillExtent; Chris@1038: sv_frame_t m_frameCount; Chris@147: }; Chris@147: Chris@147: void fillCache(); Chris@316: Chris@317: FileSource m_source; Chris@147: QString m_path; Chris@147: AudioFileReader *m_reader; Chris@175: bool m_myReader; Chris@147: Chris@1038: sv_frame_t m_startFrame; Chris@300: Chris@147: RangeBlock m_cache[2]; // interleaved at two base resolutions Chris@147: mutable QMutex m_mutex; Chris@147: RangeCacheFillThread *m_fillThread; Chris@147: QTimer *m_updateTimer; Chris@1038: sv_frame_t m_lastFillExtent; Chris@1557: mutable int m_prevCompletion; Chris@147: bool m_exiting; Chris@179: static PowerOfSqrtTwoZoomConstraint m_zoomConstraint; Chris@377: Chris@1326: mutable floatvec_t m_directRead; Chris@1038: mutable sv_frame_t m_lastDirectReadStart; Chris@1038: mutable sv_frame_t m_lastDirectReadCount; Chris@377: mutable QMutex m_directReadMutex; Chris@147: }; Chris@147: Chris@147: #endif