Mercurial > hg > svcore
view data/model/DenseTimeValueModel.h @ 299:576be0d0d218
* Merge transform directory from sv-match-alignment branch
(the previous comment included notes for this stuff, but I missed it
in the actual merge)
* Fix crash when a transform fails to create an output model and the
thread that created the transform then deletes its input model thinking
it's no longer needed, even though the transform run thread is still
using it -- fix is to wait() on the transform before returning the
null output model
author | Chris Cannam |
---|---|
date | Fri, 28 Sep 2007 16:15:06 +0000 |
parents | 0ed2b2e26b44 |
children | 5877d68815c7 |
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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 Chris Cannam. 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 _DENSE_TIME_VALUE_MODEL_H_ #define _DENSE_TIME_VALUE_MODEL_H_ #include <QObject> #include "Model.h" /** * Base class for models containing dense two-dimensional data (value * against time). For example, audio waveform data. */ class DenseTimeValueModel : public Model { Q_OBJECT public: DenseTimeValueModel(); /** * Return the minimum possible value found in this model type. * (That is, the minimum that would be valid, not the minimum * actually found in a particular model). */ virtual float getValueMinimum() const = 0; /** * Return the minimum possible value found in this model type. * (That is, the minimum that would be valid, not the minimum * actually found in a particular model). */ virtual float getValueMaximum() const = 0; /** * Return the number of distinct channels for this model. */ virtual size_t getChannelCount() const = 0; /** * Get the specified set of samples from the given channel of the * model in single-precision floating-point format. Return the * number of samples actually retrieved. * If the channel is given as -1, mix all available channels and * return the result. */ virtual size_t getValues(int channel, size_t start, size_t end, float *buffer) const = 0; /** * Get the specified set of samples from the given channel of the * model in double-precision floating-point format. Return the * number of samples actually retrieved. * If the channel is given as -1, mix all available channels and * return the result. */ virtual size_t getValues(int channel, size_t start, size_t end, double *buffer) const = 0; }; #endif