view plugin/FeatureExtractionPluginFactory.h @ 10:ec6886f0e673

* Fix update and play limits for play-selection mode when not looping
* Fix playback in loop mode when no selection -- but the GUI update for
  this is still wrong on the flyback
* Various fixes and improvements to making selections, particularly during
  playback
* Draw selection under non-opaque non-scrollable layers, so as to improve
  cacheing
* Show selection limits as text when drawing selection
* Allow user to find missing audio files when loading session
* Cross-fade selections when in play-selection mode -- mostly.  We don't
  cross-fade on a processing block boundary, and unfortunately with short
  selections the selection boundary is quite likely to coincide with a block
  boundary.

/* -*- c-basic-offset: 4 -*-  vi:set ts=8 sts=4 sw=4: */

/*
    A waveform viewer and audio annotation editor.
    Chris Cannam, Queen Mary University of London, 2005-2006
    
    This is experimental software.  Not for distribution.
*/

#ifndef _FEATURE_EXTRACTION_PLUGIN_FACTORY_H_
#define _FEATURE_EXTRACTION_PLUGIN_FACTORY_H_

#include <QString>
#include <vector>

class FeatureExtractionPlugin;

class FeatureExtractionPluginFactory
{
public:
    static FeatureExtractionPluginFactory *instance(QString pluginType);
    static FeatureExtractionPluginFactory *instanceFor(QString identifier);
    static std::vector<QString> getAllPluginIdentifiers();

    std::vector<QString> getPluginIdentifiers();

    // We don't set blockSize or channels on this -- they're
    // negotiated and handled via initialize() on the plugin
    virtual FeatureExtractionPlugin *instantiatePlugin(QString identifier,
						       float inputSampleRate);

protected:
};

#endif