peak_reader.h

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#ifndef AUDIOGRAPHER_PEAK_READER_H
#define AUDIOGRAPHER_PEAK_READER_H
 
#include "audiographer/visibility.h"
#include "audiographer/sink.h"
#include "audiographer/routines.h"
#include "audiographer/utils/listed_source.h"
 
namespace AudioGrapher
{
 
class /*LIBAUDIOGRAPHER_API*/ PeakReader : public ListedSource<float>, public Sink<float>
{
  public:
        PeakReader() : peak (0.0) {}
 
        float get_peak() { return peak; }
 
        void  reset() { peak = 0.0; }
 
        void process (ProcessContext<float> const & c)
        {
                peak = Routines::compute_peak (c.data(), c.samples(), peak);
                ListedSource<float>::output(c);
        }
 
        using Sink<float>::process;
 
  private:
        float peak;
};
 
 
} // namespace
 
#endif // AUDIOGRAPHER_PEAK_READER_H