Mercurial > hg > svcore
view data/model/DenseTimeValueModel.h @ 1483:7459f4c4d7c3
Merge from branch plugin-path-config
author | Chris Cannam |
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date | Mon, 11 Jun 2018 14:40:09 +0100 |
parents | 54af1e21705c |
children | c01cbe41aeb5 |
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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 SV_DENSE_TIME_VALUE_MODEL_H #define SV_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. Other time-value * plot data, especially if editable, will normally go into a * SparseTimeValueModel instead even if regularly sampled. */ class DenseTimeValueModel : public Model { Q_OBJECT public: DenseTimeValueModel(); virtual ~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 int getChannelCount() const = 0; /** * Get the specified set of samples from the given channel of the * model in single-precision floating-point format. Returned * vector may have fewer samples than requested, if the end of * file was reached. * * If the channel is given as -1, mix all available channels and * return the result. */ virtual floatvec_t getData(int channel, sv_frame_t start, sv_frame_t count) const = 0; /** * Get the specified set of samples from given contiguous range of * channels of the model in single-precision floating-point * format. Returned vector may have fewer samples than requested, * if the end of file was reached. */ virtual std::vector<floatvec_t> getMultiChannelData(int fromchannel, int tochannel, sv_frame_t start, sv_frame_t count) const = 0; virtual bool canPlay() const { return true; } virtual QString getDefaultPlayClipId() const { return ""; } virtual QString toDelimitedDataStringSubset(QString delimiter, sv_frame_t f0, sv_frame_t f1) const; QString getTypeName() const { return tr("Dense Time-Value"); } }; #endif