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livetrax/libs/ardour/onset_detector.cc
David Robillard e0aaed6d65 *** NEW CODING POLICY ***
All #include statements that include a header that is a part of a library
bundled with ardour MUST use quotes, not angle brackets.

Do this:

#include "ardour/types.h"

NOT this:

#include <ardour/types.h>

Rationale:

This is best practice in general, to ensure we include the local version
and not the system version.  That quotes mean "local" (in some sense)
and angle brackets mean "system" (in some sense) is a ubiquitous
convention and IIRC right in the C spec somewhere.

More pragmatically, this is required by (my) waf (stuff) for dependencies
to work correctly.  That is:

!!! FAILURE TO DO THIS CAN RESULT IN BROKEN BUILDS !!!

Failure to comply is punishable by death by torture. :)

P.S. It's not that dramatic in all cases, but this (in combination with some
GCC flags specific to the include type) is the best way I have found to be
absolutely 100% positive the local ones are being used (and we definitely
want to be absolutely 100% positive on that one).


git-svn-id: svn://localhost/ardour2/branches/3.0@4655 d708f5d6-7413-0410-9779-e7cbd77b26cf
2009-02-25 18:26:51 +00:00

127 lines
2.4 KiB
C++

#include "ardour/onset_detector.h"
#include "i18n.h"
using namespace Vamp;
using namespace ARDOUR;
using namespace std;
/* need a static initializer function for this */
string OnsetDetector::_op_id = X_("libardourvampplugins:aubioonset:2");
OnsetDetector::OnsetDetector (float sr)
: AudioAnalyser (sr, X_("libardourvampplugins:aubioonset"))
{
/* update the op_id */
_op_id = X_("libardourvampplugins:aubioonset");
// XXX this should load the above-named plugin and get the current version
_op_id += ":2";
}
OnsetDetector::~OnsetDetector()
{
}
string
OnsetDetector::operational_identifier()
{
return _op_id;
}
int
OnsetDetector::run (const std::string& path, Readable* src, uint32_t channel, AnalysisFeatureList& results)
{
current_results = &results;
int ret = analyse (path, src, channel);
current_results = 0;
return ret;
}
int
OnsetDetector::use_features (Plugin::FeatureSet& features, ostream* out)
{
const Plugin::FeatureList& fl (features[0]);
for (Plugin::FeatureList::const_iterator f = fl.begin(); f != fl.end(); ++f) {
if ((*f).hasTimestamp) {
if (out) {
(*out) << (*f).timestamp.toString() << endl;
}
current_results->push_back (RealTime::realTime2Frame ((*f).timestamp, (nframes_t) floor(sample_rate)));
}
}
return 0;
}
void
OnsetDetector::set_silence_threshold (float val)
{
if (plugin) {
plugin->setParameter ("silencethreshold", val);
}
}
void
OnsetDetector::set_peak_threshold (float val)
{
if (plugin) {
plugin->setParameter ("peakpickthreshold", val);
}
}
void
OnsetDetector::set_function (int val)
{
if (plugin) {
plugin->setParameter ("onsettype", (float) val);
}
}
void
OnsetDetector::cleanup_onsets (AnalysisFeatureList& t, float sr, float gap_msecs)
{
if (t.empty()) {
return;
}
t.sort ();
/* remove duplicates or other things that are too close */
AnalysisFeatureList::iterator i = t.begin();
AnalysisFeatureList::iterator f, b;
const nframes64_t gap_frames = (nframes64_t) floor (gap_msecs * (sr / 1000.0));
while (i != t.end()) {
// move front iterator to just past i, and back iterator the same place
f = i;
++f;
b = f;
// move f until we find a new value that is far enough away
while ((f != t.end()) && (((*f) - (*i)) < gap_frames)) {
++f;
}
i = f;
// if f moved forward from b, we had duplicates/too-close points: get rid of them
if (b != f) {
t.erase (b, f);
}
}
}