AsyncAudioFilter.h

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#ifndef ASYNC_AUDIO_FILTER_INCLUDED
#define ASYNC_AUDIO_FILTER_INCLUDED
 
 
/****************************************************************************
 *
 * System Includes
 *
 ****************************************************************************/
 
#include <string>
 
 
/****************************************************************************
 *
 * Project Includes
 *
 ****************************************************************************/
 
 
 
/****************************************************************************
 *
 * Local Includes
 *
 ****************************************************************************/
 
#include <AsyncAudioProcessor.h>
 
 
 
/****************************************************************************
 *
 * Forward declarations
 *
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/****************************************************************************
 *
 * Namespace
 *
 ****************************************************************************/
 
namespace Async
{
 
 
/****************************************************************************
 *
 * Forward declarations of classes inside of the declared namespace
 *
 ****************************************************************************/
 
class FidVars;
  
 
/****************************************************************************
 *
 * Defines & typedefs
 *
 ****************************************************************************/
 
 
 
/****************************************************************************
 *
 * Exported Global Variables
 *
 ****************************************************************************/
 
 
 
/****************************************************************************
 *
 * Class definitions
 *
 ****************************************************************************/
 
class AudioFilter : public AudioProcessor
{
  public:
    explicit AudioFilter(int sample_rate = INTERNAL_SAMPLE_RATE);
  
    explicit AudioFilter(const std::string &filter_spec,
                         int sample_rate = INTERNAL_SAMPLE_RATE);
  
    ~AudioFilter(void);
  
    bool parseFilterSpec(const std::string &filter_spec);
 
    std::string errorString(void) const { return error_str; }
 
    void setOutputGain(float gain_db);
    
    void reset(void);
    
    
  protected:
    void processSamples(float *dest, const float *src, int count);
 
 
  private:
    int         sample_rate;
    FidVars     *fv;
    float       output_gain;
    std::string error_str;
    
    AudioFilter(const AudioFilter&);
    AudioFilter& operator=(const AudioFilter&);
    void deleteFilter(void);
 
};  /* class AudioFilter */
 
 
} /* namespace */
 
#endif /* ASYNC_AUDIO_FILTER_INCLUDED */
 
 
 
/*
 * This file has not been truncated
 */