hotword_detector.cpp

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#define _GLIBCXX_USE_CXX11_ABI 0
 
#include "snowboy_ros/hotword_detector.h"
 
#include <sstream>
 
namespace snowboy_ros
{
 
HotwordDetector::HotwordDetector() : detector_(0)
{
}
 
void HotwordDetector::initialize(const char* resource_filename, const char* model_filename)
{
  // Delete detector if we already had one
  if (detector_)
  {
    delete detector_;
  }
 
  // We need to use cpp98 therefore we cannot pass std::strings
  std::string resource_filename_cpp98(resource_filename);
  std::string model_filename_cpp98(model_filename);
 
  detector_ = new snowboy::SnowboyDetect(resource_filename_cpp98, model_filename_cpp98);
}
 
bool HotwordDetector::configure(double sensitivity, double audio_gain)
{
  // Return false if detector not initialized
  if (!detector_)
  {
    return false;
  }
 
  std::stringstream sensitivity_ss; sensitivity_ss << sensitivity;
 
  detector_->SetAudioGain(audio_gain);
  detector_->SetSensitivity(sensitivity_ss.str());
 
  return true;
}
 
HotwordDetector::~HotwordDetector()
{
  if (detector_)
  {
    delete detector_;
  }
}
 
int HotwordDetector::runDetection(const int16_t* const data, const int array_length)
{
  if (!detector_)
  {
    return -3;
  }
  return detector_->RunDetection(data, array_length);
}
 
}