libs/audiographer/audiographer/peak_reader.h

   1 #ifndef AUDIOGRAPHER_PEAK_READER_H
   2 #define AUDIOGRAPHER_PEAK_READER_H
   3
   4 #include "listed_source.h"
   5 #include "sink.h"
   6 #include "routines.h"
   7
   8 namespace AudioGrapher
   9 {
  10
  11 class PeakReader : public ListedSource<float>, public Sink<float>
  12 {
  13   public:
  14         PeakReader() : peak (0.0) {}
  15
  16         float get_peak() { return peak; }
  17         void  reset() { peak = 0.0; }
  18
  19         void process (ProcessContext<float> const & c)
  20         {
  21                 peak = Routines::compute_peak (c.data(), c.frames(), peak);
  22                 ListedSource<float>::output(c);
  23         }
  24
  25         void process (ProcessContext<float> & c)
  26         {
  27                 peak = Routines::compute_peak (c.data(), c.frames(), peak);
  28                 ListedSource<float>::output(c);
  29         }
  30
  31   private:
  32         float peak;
  33 };
  34
  35
  36 } // namespace
  37
  38 #endif // AUDIOGRAPHER_PEAK_READER_H