Mercurial > hg > svcore
view transform/ModelTransformerFactory.h @ 465:63b8ba45d953
* stub out persistent cacheing class, as I've decided I don't like the
way things were going with trying to incorporate all this logic into
the already too big FileSource class
author | Chris Cannam |
---|---|
date | Mon, 27 Oct 2008 11:53:35 +0000 |
parents | a1b6d2e33cab |
children | 4c000e196bf1 |
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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 and 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 _MODEL_TRANSFORMER_FACTORY_H_ #define _MODEL_TRANSFORMER_FACTORY_H_ #include "Transform.h" #include "TransformDescription.h" #include "ModelTransformer.h" #include <map> #include <set> namespace Vamp { class PluginBase; } class AudioPlaySource; class ModelTransformerFactory : public QObject { Q_OBJECT public: virtual ~ModelTransformerFactory(); static ModelTransformerFactory *getInstance(); /** * Fill out the configuration for the given transform (by asking * the user, most likely). Returns the selected input model and * channel if the transform is acceptable, or an input with a null * model if the operation should be cancelled. Audio play source * may be used to audition effects plugins, if provided. */ ModelTransformer::Input getConfigurationForTransform(Transform &transform, const std::vector<Model *> &candidateInputModels, Model *defaultInputModel, AudioPlaySource *source = 0, size_t startFrame = 0, size_t duration = 0); /** * Return the output model resulting from applying the named * transform to the given input model. The transform may still be * working in the background when the model is returned; check the * output model's isReady completion status for more details. * * If the transform is unknown or the input model is not an * appropriate type for the given transform, or if some other * problem occurs, return 0. Set message if there is any error or * warning to report. * * The returned model is owned by the caller and must be deleted * when no longer needed. */ Model *transform(const Transform &transform, const ModelTransformer::Input &input, QString &message); protected slots: void transformerFinished(); void modelAboutToBeDeleted(Model *); protected: ModelTransformer *createTransformer(const Transform &transform, const ModelTransformer::Input &input); typedef std::map<TransformId, QString> TransformerConfigurationMap; TransformerConfigurationMap m_lastConfigurations; typedef std::set<ModelTransformer *> TransformerSet; TransformerSet m_runningTransformers; bool getChannelRange(TransformId identifier, Vamp::PluginBase *plugin, int &min, int &max); static ModelTransformerFactory *m_instance; }; #endif