2 Copyright (C) 2008 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include "ardour/analyser.h"
21 #include "ardour/audiofilesource.h"
22 #include "ardour/session_event.h"
23 #include "ardour/transient_detector.h"
25 #include "pbd/compose.h"
26 #include "pbd/error.h"
30 using namespace ARDOUR;
33 Analyser* Analyser::the_analyser = 0;
34 Glib::Threads::Mutex Analyser::analysis_active_lock;
35 Glib::Threads::Mutex Analyser::analysis_queue_lock;
36 Glib::Threads::Cond Analyser::SourcesToAnalyse;
37 list<boost::weak_ptr<Source> > Analyser::analysis_queue;
44 Analyser::~Analyser ()
57 Glib::Threads::Thread::create (sigc::ptr_fun (analyser_work));
61 Analyser::queue_source_for_analysis (boost::shared_ptr<Source> src, bool force)
63 if (!src->can_be_analysed()) {
67 if (!force && src->has_been_analysed()) {
71 Glib::Threads::Mutex::Lock lm (analysis_queue_lock);
72 analysis_queue.push_back (boost::weak_ptr<Source>(src));
73 SourcesToAnalyse.broadcast ();
79 SessionEvent::create_per_thread_pool ("Analyser", 64);
82 analysis_queue_lock.lock ();
85 if (analysis_queue.empty()) {
86 SourcesToAnalyse.wait (analysis_queue_lock);
89 if (analysis_queue.empty()) {
93 boost::shared_ptr<Source> src (analysis_queue.front().lock());
94 analysis_queue.pop_front();
95 analysis_queue_lock.unlock ();
97 boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource> (src);
99 if (afs && afs->length(afs->timeline_position())) {
100 Glib::Threads::Mutex::Lock lm (analysis_active_lock);
101 analyse_audio_file_source (afs);
107 Analyser::analyse_audio_file_source (boost::shared_ptr<AudioFileSource> src)
109 AnalysisFeatureList results;
112 TransientDetector td (src->sample_rate());
113 if (td.run (src->get_transients_path(), src.get(), 0, results) == 0) {
114 src->set_been_analysed (true);
116 src->set_been_analysed (false);
119 error << string_compose(_("Transient Analysis failed for %1."), _("Audio File Source")) << endmsg;;
120 src->set_been_analysed (false);
128 Glib::Threads::Mutex::Lock lq (analysis_queue_lock);
129 Glib::Threads::Mutex::Lock la (analysis_active_lock);
130 analysis_queue.clear();