David Robillard
bb9cc45cd2
Vimmers, try let c_space_errors = 1 in your .vimrc to highlight this kind of stuff in red. I don't know the emacs equivalent... git-svn-id: svn://localhost/ardour2/branches/3.0@5773 d708f5d6-7413-0410-9779-e7cbd77b26cf
119 lines
2.3 KiB
C++
119 lines
2.3 KiB
C++
#include "ardour/transient_detector.h"
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#include "i18n.h"
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using namespace Vamp;
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using namespace ARDOUR;
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using namespace std;
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/* need a static initializer function for this */
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string TransientDetector::_op_id = X_("libardourvampplugins:percussiononsets:2");
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TransientDetector::TransientDetector (float sr)
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: AudioAnalyser (sr, X_("libardourvampplugins:percussiononsets"))
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{
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/* update the op_id */
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_op_id = X_("libardourvampplugins:percussiononsets");
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// XXX this should load the above-named plugin and get the current version
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_op_id += ":2";
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}
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TransientDetector::~TransientDetector()
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{
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}
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string
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TransientDetector::operational_identifier()
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{
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return _op_id;
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}
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int
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TransientDetector::run (const std::string& path, Readable* src, uint32_t channel, AnalysisFeatureList& results)
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{
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current_results = &results;
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int ret = analyse (path, src, channel);
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current_results = 0;
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return ret;
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}
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int
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TransientDetector::use_features (Plugin::FeatureSet& features, ostream* out)
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{
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const Plugin::FeatureList& fl (features[0]);
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for (Plugin::FeatureList::const_iterator f = fl.begin(); f != fl.end(); ++f) {
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if ((*f).hasTimestamp) {
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if (out) {
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(*out) << (*f).timestamp.toString() << endl;
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}
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current_results->push_back (RealTime::realTime2Frame ((*f).timestamp, (nframes_t) floor(sample_rate)));
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}
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}
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return 0;
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}
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void
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TransientDetector::set_threshold (float val)
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{
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if (plugin) {
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plugin->setParameter ("threshold", val);
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}
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}
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void
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TransientDetector::set_sensitivity (float val)
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{
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if (plugin) {
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plugin->setParameter ("sensitivity", val);
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}
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}
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void
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TransientDetector::cleanup_transients (AnalysisFeatureList& t, float sr, float gap_msecs)
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{
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if (t.empty()) {
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return;
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}
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t.sort ();
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/* remove duplicates or other things that are too close */
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AnalysisFeatureList::iterator i = t.begin();
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AnalysisFeatureList::iterator f, b;
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const nframes64_t gap_frames = (nframes64_t) floor (gap_msecs * (sr / 1000.0));
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while (i != t.end()) {
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// move front iterator to just past i, and back iterator the same place
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f = i;
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++f;
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b = f;
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// move f until we find a new value that is far enough away
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while ((f != t.end()) && (((*f) - (*i)) < gap_frames)) {
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++f;
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}
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i = f;
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// if f moved forward from b, we had duplicates/too-close points: get rid of them
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if (b != f) {
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t.erase (b, f);
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}
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}
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}
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