audiographer/general/limiter.h

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#ifndef AUDIOGRAPHER_LIMITER_H
#define AUDIOGRAPHER_LIMITER_H
 
#include "ardour/export_analysis.h"
 
#include "audiographer/visibility.h"
#include "audiographer/sink.h"
#include "audiographer/utils/listed_source.h"
 
#include "private/limiter/limiter.h"
 
namespace AudioGrapher
{
 
class LIBAUDIOGRAPHER_API Limiter
  : public ListedSource<float>
  , public Sink<float>
  , public Throwing<>
{
public:
        Limiter (float sample_rate, unsigned int channels, samplecnt_t);
        ~Limiter ();
 
        void set_input_gain (float dB);
        void set_threshold (float dB);
        void set_release (float s);
 
        void set_duration (samplecnt_t);
        void set_result (ARDOUR::ExportAnalysisPtr);
 
        void process (ProcessContext<float> const& ctx);
        using Sink<float>::process;
 
private:
        void stats (samplecnt_t);
 
        bool        _enabled;
        float*      _buf;
        samplecnt_t _size;
        samplecnt_t _latency;
 
        samplecnt_t _cnt;
        samplecnt_t _spp;
        size_t      _pos;
 
        ARDOUR::ExportAnalysisPtr _result;
        AudioGrapherDSP::Limiter  _limiter;
};
 
} // namespace
 
#endif