Mercurial > hg > svcore
view data/model/AlignmentModel.h @ 378:a38cd7823cb2
* PortAudio driver: do not specify frames per buffer, let PA decide
* Remove old non-RubberBand time stretcher -- it doesn't work with varying
buffer sizes such as the PA driver may now be using
* Rewrite getCurrentPlayingFrame for greater correctness when using long
buffer sizes (interpolating according to audio stream timestamp)
* Several changes to make the timestretch management RT safe(r)
author | Chris Cannam |
---|---|
date | Fri, 08 Feb 2008 17:51:15 +0000 |
parents | 700cd3350391 |
children | 88ad01799040 |
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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 2007 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 _ALIGNMENT_MODEL_H_ #define _ALIGNMENT_MODEL_H_ #include "Model.h" #include "SparseModel.h" #include "base/RealTime.h" #include <QString> #include <QStringList> class SparseTimeValueModel; class AlignmentModel : public Model { Q_OBJECT public: AlignmentModel(Model *reference, Model *aligned, Model *inputModel, // probably an AggregateWaveModel; I take ownership SparseTimeValueModel *path); // I take ownership ~AlignmentModel(); virtual bool isOK() const; virtual size_t getStartFrame() const; virtual size_t getEndFrame() const; virtual size_t getSampleRate() const; virtual Model *clone() const; virtual bool isReady(int *completion = 0) const; virtual const ZoomConstraint *getZoomConstraint() const; QString getTypeName() const { return tr("Alignment"); } const Model *getReferenceModel() const; const Model *getAlignedModel() const; size_t toReference(size_t frame) const; size_t fromReference(size_t frame) const; signals: void modelChanged(); void modelChanged(size_t startFrame, size_t endFrame); void completionChanged(); protected slots: void pathChanged(); void pathChanged(size_t startFrame, size_t endFrame); void pathCompletionChanged(); protected: Model *m_reference; // I don't own this Model *m_aligned; // I don't own this Model *m_inputModel; // I own this struct PathPoint { PathPoint(long _frame) : frame(_frame), mapframe(_frame) { } PathPoint(long _frame, long _mapframe) : frame(_frame), mapframe(_mapframe) { } int getDimensions() const { return 2; } long frame; long mapframe; QString getLabel() const { return ""; } void toXml(QTextStream &stream, QString indent = "", QString extraAttributes = "") const { stream << QString("%1<point frame=\"%2\" mapframe=\"%3\" %4/>\n") .arg(indent).arg(frame).arg(mapframe).arg(extraAttributes); } QString toDelimitedDataString(QString delimiter, size_t sampleRate) const { QStringList list; list << RealTime::frame2RealTime(frame, sampleRate).toString().c_str(); list << QString("%1").arg(mapframe); return list.join(delimiter); } struct Comparator { bool operator()(const PathPoint &p1, const PathPoint &p2) const { if (p1.frame != p2.frame) return p1.frame < p2.frame; return p1.mapframe < p2.mapframe; } }; struct OrderComparator { bool operator()(const PathPoint &p1, const PathPoint &p2) const { return p1.frame < p2.frame; } }; }; class PathModel : public SparseModel<PathPoint> { public: PathModel(size_t sampleRate, size_t resolution, bool notify = true) : SparseModel<PathPoint>(sampleRate, resolution, notify) { } }; SparseTimeValueModel *m_rawPath; // I own this mutable PathModel *m_path; // I own this mutable PathModel *m_reversePath; // I own this bool m_pathBegun; bool m_pathComplete; void constructPath() const; void constructReversePath() const; size_t align(PathModel *path, size_t frame) const; }; #endif