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Viewing changes to libecasound/ctrl-source.h

  • Committer: Bazaar Package Importer
  • Author(s): Junichi Uekawa
  • Date: 2005-04-14 09:15:48 UTC
  • Revision ID: james.westby@ubuntu.com-20050414091548-o7kgb47z0tcunh0s
Tags: upstream-2.4.1
Import upstream version 2.4.1

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libecasound/ctrl-source.h
 
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#ifndef INCLUDE_CTRL_SOURCE_H
 
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#define INCLUDE_CTRL_SOURCE_H
 
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#include "eca-audio-position.h"
 
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#include "eca-operator.h"
 
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/**
 
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 * Interface class for implementing control data
 
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 * source objects. 
 
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 */
 
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class CONTROLLER_SOURCE : public OPERATOR,
 
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                          public ECA_AUDIO_POSITION {
 
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 public:
 
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  typedef SAMPLE_SPECS::sample_t parameter_t;
 
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  /**
 
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   * Initialize controller source
 
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   */
 
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  virtual void init(void) = 0;
 
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  /**
 
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   * Returns the current value. Standard value range is [0,1].
 
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   */
 
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  virtual parameter_t value(void) = 0; 
 
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  virtual CONTROLLER_SOURCE* clone(void) const = 0;
 
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  virtual CONTROLLER_SOURCE* new_expr(void) const = 0;
 
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};
 
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#endif