Mercurial > hg > svcore
view data/model/WritableWaveFileModel.h @ 817:9089d0546efa tonioni
some visualisation changes
author | matthiasm |
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date | Thu, 20 Jun 2013 11:07:57 +0100 |
parents | 166c22eff678 |
children | 59e7fe1b1003 |
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* Sonic Visualiser An audio file viewer and annotation editor. Centre for Digital Music, Queen Mary, University of London. This file copyright 2006 QMUL. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. See the file COPYING included with this distribution for more information. */ #ifndef _WRITABLE_WAVE_FILE_MODEL_H_ #define _WRITABLE_WAVE_FILE_MODEL_H_ #include "WaveFileModel.h" class WavFileWriter; class WavFileReader; class WritableWaveFileModel : public RangeSummarisableTimeValueModel { Q_OBJECT public: WritableWaveFileModel(size_t sampleRate, size_t channels, QString path = ""); ~WritableWaveFileModel(); /** * Call addSamples to append a block of samples to the end of the * file. Caller should also call setCompletion to update the * progress of this file, if it has a known end point, and should * call setCompletion(100) when the file has been written. */ virtual bool addSamples(float **samples, size_t count); bool isOK() const; bool isReady(int *) const; virtual void setCompletion(int completion); // percentage virtual int getCompletion() const { return m_completion; } const ZoomConstraint *getZoomConstraint() const { static PowerOfSqrtTwoZoomConstraint zc; return &zc; } size_t getFrameCount() const; size_t getChannelCount() const { return m_channels; } size_t getSampleRate() const { return m_sampleRate; } virtual Model *clone() const; float getValueMinimum() const { return -1.0f; } float getValueMaximum() const { return 1.0f; } virtual size_t getStartFrame() const { return m_startFrame; } virtual size_t getEndFrame() const { return m_startFrame + getFrameCount(); } void setStartFrame(size_t startFrame); virtual size_t getData(int channel, size_t start, size_t count, float *buffer) const; virtual size_t getData(int channel, size_t start, size_t count, double *buffer) const; virtual size_t getData(size_t fromchannel, size_t tochannel, size_t start, size_t count, float **buffer) const; virtual size_t getSummaryBlockSize(size_t desired) const; virtual void getSummaries(size_t channel, size_t start, size_t count, RangeBlock &ranges, size_t &blockSize) const; virtual Range getSummary(size_t channel, size_t start, size_t count) const; QString getTypeName() const { return tr("Writable Wave File"); } virtual void toXml(QTextStream &out, QString indent = "", QString extraAttributes = "") const; protected: WaveFileModel *m_model; WavFileWriter *m_writer; WavFileReader *m_reader; size_t m_sampleRate; size_t m_channels; size_t m_frameCount; size_t m_startFrame; int m_completion; }; #endif