Mercurial > hg > svcore
view rdf/RDFFeatureWriter.cpp @ 518:3cea770c6632
* crappy attempt to handle writing to directory somewhere other than C
drive on Windows
author | Chris Cannam |
---|---|
date | Thu, 11 Dec 2008 12:32:59 +0000 |
parents | 06a6612e7cf1 |
children | 1d3fc01edc03 |
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* Sonic Annotator A utility for batch feature extraction from audio files. Mark Levy, Chris Sutton and Chris Cannam, Queen Mary, University of London. Copyright 2007-2008 QMUL. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. See the file COPYING included with this distribution for more information. */ #include <fstream> #include "vamp-hostsdk/PluginHostAdapter.h" #include "vamp-hostsdk/PluginLoader.h" #include "RDFFeatureWriter.h" #include "RDFTransformFactory.h" #include <QTextStream> #include <QUrl> #include <QFileInfo> #include <QRegExp> using namespace std; using Vamp::Plugin; using Vamp::PluginBase; RDFFeatureWriter::RDFFeatureWriter() : FileFeatureWriter(SupportOneFilePerTrackTransform | SupportOneFilePerTrack | SupportOneFileTotal, "n3"), m_plain(false), m_count(0) { } RDFFeatureWriter::~RDFFeatureWriter() { } RDFFeatureWriter::ParameterList RDFFeatureWriter::getSupportedParameters() const { ParameterList pl = FileFeatureWriter::getSupportedParameters(); Parameter p; p.name = "plain"; p.description = "Use \"plain\" RDF even if transform metadata is available."; p.hasArg = false; pl.push_back(p); p.name = "signal-uri"; p.description = "Link the output RDF to the given signal URI."; p.hasArg = true; pl.push_back(p); return pl; } void RDFFeatureWriter::setParameters(map<string, string> ¶ms) { FileFeatureWriter::setParameters(params); for (map<string, string>::iterator i = params.begin(); i != params.end(); ++i) { if (i->first == "plain") { m_plain = true; } if (i->first == "signal-uri") { m_suri = i->second.c_str(); } } } void RDFFeatureWriter::setTrackMetadata(QString trackId, TrackMetadata metadata) { m_metadata[trackId] = metadata; } void RDFFeatureWriter::setFixedEventTypeURI(QString uri) { m_fixedEventTypeURI = uri; } void RDFFeatureWriter::write(QString trackId, const Transform &transform, const Plugin::OutputDescriptor& output, const Plugin::FeatureList& features, std::string summaryType) { QString pluginId = transform.getPluginIdentifier(); if (m_rdfDescriptions.find(pluginId) == m_rdfDescriptions.end()) { m_rdfDescriptions[pluginId] = PluginRDFDescription(pluginId); if (m_rdfDescriptions[pluginId].haveDescription()) { cerr << "NOTE: Have RDF description for plugin ID \"" << pluginId.toStdString() << "\"" << endl; } else { cerr << "NOTE: Do not have RDF description for plugin ID \"" << pluginId.toStdString() << "\"" << endl; } } // Need to select appropriate output file for our track/transform // combination QTextStream *stream = getOutputStream(trackId, transform.getIdentifier()); if (!stream) { std::cerr << "RDFFeatureWriter::write: ERROR: No output stream for track id \"" << trackId.toStdString() << "\" and transform \"" << transform.getIdentifier().toStdString() << "\"" << std::endl; exit(1); } if (m_startedStreamTransforms.find(stream) == m_startedStreamTransforms.end()) { // cerr << "This stream is new, writing prefixes" << endl; writePrefixes(stream); if (m_singleFileName == "" && !m_stdout) { writeSignalDescription(stream, trackId); } } if (m_startedStreamTransforms[stream].find(transform) == m_startedStreamTransforms[stream].end()) { m_startedStreamTransforms[stream].insert(transform); writeLocalFeatureTypes (stream, transform, output, m_rdfDescriptions[pluginId]); } if (m_singleFileName != "" || m_stdout) { if (m_startedTrackIds.find(trackId) == m_startedTrackIds.end()) { writeSignalDescription(stream, trackId); m_startedTrackIds.insert(trackId); } } QString timelineURI = m_trackTimelineURIs[trackId]; if (timelineURI == "") { cerr << "RDFFeatureWriter: INTERNAL ERROR: writing features without having established a timeline URI!" << endl; exit(1); } if (summaryType != "") { writeSparseRDF(stream, transform, output, features, m_rdfDescriptions[pluginId], timelineURI); } else if (m_rdfDescriptions[pluginId].haveDescription() && m_rdfDescriptions[pluginId].getOutputDisposition (output.identifier.c_str()) == PluginRDFDescription::OutputDense) { QString signalURI = m_trackSignalURIs[trackId]; if (signalURI == "") { cerr << "RDFFeatureWriter: INTERNAL ERROR: writing dense features without having established a signal URI!" << endl; exit(1); } writeDenseRDF(stream, transform, output, features, m_rdfDescriptions[pluginId], signalURI, timelineURI); } else if (!m_plain && m_rdfDescriptions[pluginId].haveDescription() && m_rdfDescriptions[pluginId].getOutputDisposition (output.identifier.c_str()) == PluginRDFDescription::OutputTrackLevel && m_rdfDescriptions[pluginId].getOutputFeatureAttributeURI (output.identifier.c_str()) != "") { QString signalURI = m_trackSignalURIs[trackId]; if (signalURI == "") { cerr << "RDFFeatureWriter: INTERNAL ERROR: writing track-level features without having established a signal URI!" << endl; exit(1); } writeTrackLevelRDF(stream, transform, output, features, m_rdfDescriptions[pluginId], signalURI); } else { writeSparseRDF(stream, transform, output, features, m_rdfDescriptions[pluginId], timelineURI); } } void RDFFeatureWriter::writePrefixes(QTextStream *sptr) { QTextStream &stream = *sptr; stream << "@prefix dc: <http://purl.org/dc/elements/1.1/> .\n" << "@prefix mo: <http://purl.org/ontology/mo/> .\n" << "@prefix af: <http://purl.org/ontology/af/> .\n" << "@prefix foaf: <http://xmlns.com/foaf/0.1/> . \n" << "@prefix event: <http://purl.org/NET/c4dm/event.owl#> .\n" << "@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .\n" << "@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .\n" << "@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .\n" << "@prefix tl: <http://purl.org/NET/c4dm/timeline.owl#> .\n" << "@prefix vamp: <http://purl.org/ontology/vamp/> .\n" << "@prefix : <#> .\n\n"; } void RDFFeatureWriter::writeSignalDescription(QTextStream *sptr, QString trackId) { QTextStream &stream = *sptr; /* * Describe signal we're analysing (AudioFile, Signal, TimeLine, etc.) */ QUrl url(trackId); QString scheme = url.scheme().toLower(); bool local = (scheme == "" || scheme == "file" || scheme.length() == 1); if (local) { if (scheme == "") { url.setScheme("file"); url.setPath(QFileInfo(url.path()).absoluteFilePath()); } else if (scheme.length() == 1) { // DOS drive letter! url.setScheme("file"); url.setPath(scheme + ":" + url.path()); } } //!!! FIX: If we are appending, we need to start counting after //all of the existing counts that are already in the file! uint64_t signalCount = m_count++; if (m_trackSignalURIs.find(trackId) == m_trackSignalURIs.end()) { m_trackSignalURIs[trackId] = QString(":signal_%1").arg(signalCount); } if (m_suri != NULL) { m_trackSignalURIs[trackId] = "<" + m_suri + ">"; } QString signalURI = m_trackSignalURIs[trackId]; if (m_trackTimelineURIs.find(trackId) == m_trackTimelineURIs.end()) { m_trackTimelineURIs[trackId] = QString(":signal_timeline_%1").arg(signalCount); } QString timelineURI = m_trackTimelineURIs[trackId]; if (trackId != "") { stream << "\n<" << url.toEncoded().data() << "> a mo:AudioFile .\n\n"; } stream << signalURI << " a mo:Signal ;\n"; if (trackId != "") { stream << " mo:available_as <" << url.toEncoded().data() << "> ;\n"; } if (m_metadata.find(trackId) != m_metadata.end()) { TrackMetadata tm = m_metadata[trackId]; if (tm.title != "") { stream << " dc:title \"\"\"" << tm.title << "\"\"\" ;\n"; } if (tm.maker != "") { stream << " foaf:maker [ a mo:MusicArtist; foaf:name \"\"\"" << tm.maker << "\"\"\" ] ;\n"; } } stream << " mo:time [\n" << " a tl:Interval ;\n" << " tl:onTimeLine " << timelineURI << "\n ] .\n\n"; } void RDFFeatureWriter::writeLocalFeatureTypes(QTextStream *sptr, const Transform &transform, const Plugin::OutputDescriptor &od, PluginRDFDescription &desc) { QString outputId = od.identifier.c_str(); QTextStream &stream = *sptr; // There is no "needFeatureType" for track-level outputs, because // we can't meaningfully write a feature at all if we don't know // what property to use for it. If the output is track level but // there is no feature type given, we have to revert to events. bool needEventType = false; bool needSignalType = false; //!!! bin names, extents and so on can be written out using e.g. vamp:bin_names ( "a" "b" "c" ) if (desc.getOutputDisposition(outputId) == PluginRDFDescription::OutputDense) { // no feature events, so may need signal type but won't need // event type if (m_plain) { needSignalType = true; } else if (desc.getOutputSignalTypeURI(outputId) == "") { needSignalType = true; } } else if (desc.getOutputDisposition(outputId) == PluginRDFDescription::OutputTrackLevel) { // see note above -- need to generate an event type if no // feature type given, or if in plain mode if (m_plain) { needEventType = true; } else if (desc.getOutputFeatureAttributeURI(outputId) == "") { if (desc.getOutputEventTypeURI(outputId) == "") { needEventType = true; } } } else { // may need event type but won't need signal type if (m_plain) { needEventType = true; } else if (desc.getOutputEventTypeURI(outputId) == "") { needEventType = true; } } QString transformUri; if (m_transformURIs.find(transform) != m_transformURIs.end()) { transformUri = m_transformURIs[transform]; } else { transformUri = QString(":transform_%1_%2").arg(m_count++).arg(outputId); m_transformURIs[transform] = transformUri; } if (transform.getIdentifier() != "") { stream << endl << RDFTransformFactory::writeTransformToRDF(transform, transformUri) << endl; } if (needEventType && m_fixedEventTypeURI == "") { QString uri; if (m_syntheticEventTypeURIs.find(transform) != m_syntheticEventTypeURIs.end()) { uri = m_syntheticEventTypeURIs[transform]; } else { uri = QString(":event_type_%1").arg(m_count++); m_syntheticEventTypeURIs[transform] = uri; } stream << uri << " rdfs:subClassOf event:Event ;" << endl << " dc:title \"" << od.name.c_str() << "\" ;" << endl << " dc:format \"" << od.unit.c_str() << "\" ;" << endl << " dc:description \"" << od.description.c_str() << "\" ." << endl << endl; } if (needSignalType) { QString uri; if (m_syntheticSignalTypeURIs.find(transform) != m_syntheticSignalTypeURIs.end()) { uri = m_syntheticSignalTypeURIs[transform]; } else { uri = QString(":signal_type_%1").arg(m_count++); m_syntheticSignalTypeURIs[transform] = uri; } stream << uri << " rdfs:subClassOf af:Signal ;" << endl << " dc:title \"" << od.name.c_str() << "\" ;" << endl << " dc:format \"" << od.unit.c_str() << "\" ;" << endl << " dc:description \"" << od.description.c_str() << "\" ." << endl << endl; } } void RDFFeatureWriter::writeSparseRDF(QTextStream *sptr, const Transform &transform, const Plugin::OutputDescriptor& od, const Plugin::FeatureList& featureList, PluginRDFDescription &desc, QString timelineURI) { // std::cerr << "RDFFeatureWriter::writeSparseRDF: have " << featureList.size() << " features" << std::endl; if (featureList.empty()) return; QTextStream &stream = *sptr; bool plain = (m_plain || !desc.haveDescription()); QString outputId = od.identifier.c_str(); // iterate through FeatureLists for (int i = 0; i < featureList.size(); ++i) { const Plugin::Feature &feature = featureList[i]; uint64_t featureNumber = m_count++; stream << ":event_" << featureNumber << " a "; if (m_fixedEventTypeURI != "") { stream << m_fixedEventTypeURI << " ;\n"; } else { QString eventTypeURI = desc.getOutputEventTypeURI(outputId); if (plain || eventTypeURI == "") { if (m_syntheticEventTypeURIs.find(transform) != m_syntheticEventTypeURIs.end()) { stream << m_syntheticEventTypeURIs[transform] << " ;\n"; } else { stream << ":event_type_" << outputId << " ;\n"; } } else { stream << "<" << eventTypeURI << "> ;\n"; } } QString timestamp = feature.timestamp.toString().c_str(); timestamp.replace(QRegExp("^ +"), ""); if (feature.hasDuration && feature.duration > Vamp::RealTime::zeroTime) { QString duration = feature.duration.toString().c_str(); duration.replace(QRegExp("^ +"), ""); stream << " event:time [ \n" << " a tl:Interval ;\n" << " tl:onTimeLine " << timelineURI << " ;\n" << " tl:beginsAt \"PT" << timestamp << "S\"^^xsd:duration ;\n" << " tl:duration \"PT" << duration << "S\"^^xsd:duration ;\n" << " ] "; } else { stream << " event:time [ \n" << " a tl:Instant ;\n" //location of the event in time << " tl:onTimeLine " << timelineURI << " ;\n" << " tl:at \"PT" << timestamp << "S\"^^xsd:duration ;\n ] "; } if (transform.getIdentifier() != "") { stream << ";\n"; stream << " vamp:computed_by " << m_transformURIs[transform] << " "; } if (feature.label.length() > 0) { stream << ";\n"; stream << " rdfs:label \"\"\"" << feature.label.c_str() << "\"\"\" "; } if (!feature.values.empty()) { stream << ";\n"; //!!! named bins? stream << " af:feature \"" << feature.values[0]; for (int j = 1; j < feature.values.size(); ++j) { stream << " " << feature.values[j]; } stream << "\" "; } stream << ".\n"; } } void RDFFeatureWriter::writeTrackLevelRDF(QTextStream *sptr, const Transform &transform, const Plugin::OutputDescriptor& od, const Plugin::FeatureList& featureList, PluginRDFDescription &desc, QString signalURI) { if (featureList.empty()) return; QTextStream &stream = *sptr; bool plain = (m_plain || !desc.haveDescription()); QString outputId = od.identifier.c_str(); QString featureUri = desc.getOutputFeatureAttributeURI(outputId); if (featureUri == "") { cerr << "RDFFeatureWriter::writeTrackLevelRDF: ERROR: No feature URI available -- this function should not have been called!" << endl; return; } for (int i = 0; i < featureList.size(); ++i) { const Plugin::Feature &feature = featureList[i]; if (feature.values.empty()) { if (feature.label == "") continue; stream << signalURI << " " << featureUri << " \"\"\"" << feature.label.c_str() << "\"\"\" .\n"; } else { stream << signalURI << " " << featureUri << " \"" << feature.values[0] << "\"^^xsd:float .\n"; } } } void RDFFeatureWriter::writeDenseRDF(QTextStream *sptr, const Transform &transform, const Plugin::OutputDescriptor& od, const Plugin::FeatureList& featureList, PluginRDFDescription &desc, QString signalURI, QString timelineURI) { if (featureList.empty()) return; StringTransformPair sp(signalURI, transform); if (m_openDenseFeatures.find(sp) == m_openDenseFeatures.end()) { StreamBuffer b(sptr, ""); m_openDenseFeatures[sp] = b; QString &str(m_openDenseFeatures[sp].second); QTextStream stream(&str); bool plain = (m_plain || !desc.haveDescription()); QString outputId = od.identifier.c_str(); uint64_t featureNumber = m_count++; // need to write out feature timeline map -- for this we need // the sample rate, window length and hop size from the // transform stream << "\n:feature_timeline_" << featureNumber << " a tl:DiscreteTimeLine .\n\n"; size_t stepSize = transform.getStepSize(); if (stepSize == 0) { cerr << "RDFFeatureWriter: INTERNAL ERROR: writing dense features without having set the step size properly!" << endl; return; } size_t blockSize = transform.getBlockSize(); if (blockSize == 0) { cerr << "RDFFeatureWriter: INTERNAL ERROR: writing dense features without having set the block size properly!" << endl; return; } float sampleRate = transform.getSampleRate(); if (sampleRate == 0.f) { cerr << "RDFFeatureWriter: INTERNAL ERROR: writing dense features without having set the sample rate properly!" << endl; return; } stream << ":feature_timeline_map_" << featureNumber << " a tl:UniformSamplingWindowingMap ;\n" << " tl:rangeTimeLine :feature_timeline_" << featureNumber << " ;\n" << " tl:domainTimeLine " << timelineURI << " ;\n" << " tl:sampleRate \"" << int(sampleRate) << "\"^^xsd:int ;\n" << " tl:windowLength \"" << blockSize << "\"^^xsd:int ;\n" << " tl:hopSize \"" << stepSize << "\"^^xsd:int .\n\n"; stream << signalURI << " af:signal_feature :feature_" << featureNumber << " ." << endl << endl; stream << ":feature_" << featureNumber << " a "; QString signalTypeURI = desc.getOutputSignalTypeURI(outputId); if (plain || signalTypeURI == "") { if (m_syntheticSignalTypeURIs.find(transform) != m_syntheticSignalTypeURIs.end()) { stream << m_syntheticSignalTypeURIs[transform] << " ;\n"; } else { stream << ":signal_type_" << outputId << " ;\n"; } } else { stream << signalTypeURI << " ;\n"; } stream << " mo:time [" << "\n a tl:Interval ;" << "\n tl:onTimeLine :feature_timeline_" << featureNumber << " ;"; RealTime startrt = transform.getStartTime(); RealTime durationrt = transform.getDuration(); int start = RealTime::realTime2Frame(startrt, sampleRate) / stepSize; int duration = RealTime::realTime2Frame(durationrt, sampleRate) / stepSize; if (start != 0) { stream << "\n tl:start \"" << start << "\"^^xsd:int ;"; } if (duration != 0) { stream << "\n tl:duration \"" << duration << "\"^^xsd:int ;"; } stream << "\n ] ;\n"; if (od.hasFixedBinCount) { // We only know the height, so write the width as zero stream << " af:dimensions \"" << od.binCount << " 0\" ;\n"; } stream << " af:value \""; } QString &str = m_openDenseFeatures[sp].second; QTextStream stream(&str); for (int i = 0; i < featureList.size(); ++i) { const Plugin::Feature &feature = featureList[i]; for (int j = 0; j < feature.values.size(); ++j) { stream << feature.values[j] << " "; } } } void RDFFeatureWriter::finish() { // cerr << "RDFFeatureWriter::finish()" << endl; // close any open dense feature literals for (map<StringTransformPair, StreamBuffer>::iterator i = m_openDenseFeatures.begin(); i != m_openDenseFeatures.end(); ++i) { // cerr << "closing a stream" << endl; StreamBuffer &b = i->second; *(b.first) << b.second << "\" ." << endl; } m_openDenseFeatures.clear(); }