libs/ardour/transient_detector.cc

   1 #include <ardour/transient_detector.h>
   2
   3 #include "i18n.h"
   4
   5 using namespace Vamp;
   6 using namespace ARDOUR;
   7 using namespace std;
   8
   9 TransientDetector::TransientDetector (float sr)
  10         : AudioAnalyser (sr, X_("ardour-vamp-plugins:percussiononsets"))
  11 {
  12 }
  13
  14 TransientDetector::~TransientDetector()
  15 {
  16 }
  17
  18 int
  19 TransientDetector::run (const std::string& path, boost::shared_ptr<Readable> src, uint32_t channel, vector<nframes64_t>& results)
  20 {
  21         current_results = &results;
  22         int ret = analyse (path, src, channel);
  23         current_results = 0;
  24         return ret;
  25 }
  26
  27 int
  28 TransientDetector::use_features (Plugin::FeatureSet& features, ostream* out)
  29 {
  30         const Plugin::FeatureList& fl (features[0]);
  31
  32         for (Plugin::FeatureList::const_iterator f = fl.begin(); f != fl.end(); ++f) {
  33
  34                 if ((*f).hasTimestamp) {
  35
  36                         if (out) {
  37                                 (*out) << (*f).timestamp.toString() << endl;
  38                         }
  39
  40                         current_results->push_back (RealTime::realTime2Frame ((*f).timestamp, sample_rate));
  41                 }
  42         }
  43
  44         return 0;
  45 }
  46
  47 void
  48 TransientDetector::set_threshold (float val)
  49 {
  50         if (plugin) {
  51                 plugin->setParameter ("threshold", val);
  52         }
  53 }
  54
  55 void
  56 TransientDetector::set_sensitivity (float val)
  57 {
  58         if (plugin) {
  59                 plugin->setParameter ("sensitivity", val);
  60         }
  61 }