Mercurial > hg > sonic-visualiser
annotate transform/Transform.h @ 16:3715efc38f95
* substantial enhancements to time stretcher:
-- use putInput/getOutput methods to ensure the audio source always feeds
it enough input, avoiding underruns due to rounding error
-- add a percussion detector and an optional "Sharpen" toggle to the main
window, which invokes a very basic variable speed timestretcher
author | Chris Cannam |
---|---|
date | Wed, 13 Sep 2006 17:17:42 +0000 |
parents | 40116f709d3b |
children | dd11619b73ba |
rev | line source |
---|---|
Chris@0 | 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ |
Chris@0 | 2 |
Chris@0 | 3 /* |
Chris@0 | 4 Sonic Visualiser |
Chris@0 | 5 An audio file viewer and annotation editor. |
Chris@0 | 6 Centre for Digital Music, Queen Mary, University of London. |
Chris@0 | 7 This file copyright 2006 Chris Cannam. |
Chris@0 | 8 |
Chris@0 | 9 This program is free software; you can redistribute it and/or |
Chris@0 | 10 modify it under the terms of the GNU General Public License as |
Chris@0 | 11 published by the Free Software Foundation; either version 2 of the |
Chris@0 | 12 License, or (at your option) any later version. See the file |
Chris@0 | 13 COPYING included with this distribution for more information. |
Chris@0 | 14 */ |
Chris@0 | 15 |
Chris@0 | 16 #ifndef _TRANSFORM_H_ |
Chris@0 | 17 #define _TRANSFORM_H_ |
Chris@0 | 18 |
Chris@1 | 19 #include "base/Thread.h" |
Chris@0 | 20 |
Chris@1 | 21 #include "data/model/Model.h" |
Chris@0 | 22 |
Chris@0 | 23 typedef QString TransformName; |
Chris@0 | 24 |
Chris@0 | 25 /** |
Chris@0 | 26 * A Transform turns one data model into another. |
Chris@0 | 27 * |
Chris@0 | 28 * Typically in this application, a Transform might have a |
Chris@0 | 29 * DenseTimeValueModel as its input (e.g. an audio waveform) and a |
Chris@0 | 30 * SparseOneDimensionalModel (e.g. detected beats) as its output. |
Chris@0 | 31 * |
Chris@0 | 32 * The Transform typically runs in the background, as a separate |
Chris@0 | 33 * thread populating the output model. The model is available to the |
Chris@0 | 34 * user of the Transform immediately, but may be initially empty until |
Chris@0 | 35 * the background thread has populated it. |
Chris@0 | 36 */ |
Chris@0 | 37 |
Chris@0 | 38 class Transform : public Thread |
Chris@0 | 39 { |
Chris@0 | 40 public: |
Chris@0 | 41 virtual ~Transform(); |
Chris@0 | 42 |
Chris@0 | 43 Model *getInputModel() { return m_input; } |
Chris@0 | 44 Model *getOutputModel() { return m_output; } |
Chris@0 | 45 Model *detachOutputModel() { m_detached = true; return m_output; } |
Chris@0 | 46 |
Chris@0 | 47 protected: |
Chris@0 | 48 Transform(Model *m); |
Chris@0 | 49 |
Chris@0 | 50 Model *m_input; // I don't own this |
Chris@0 | 51 Model *m_output; // I own this, unless... |
Chris@0 | 52 bool m_detached; // ... this is true. |
Chris@0 | 53 bool m_deleting; |
Chris@0 | 54 }; |
Chris@0 | 55 |
Chris@0 | 56 #endif |