Mercurial > hg > svcore
view transform/FeatureWriter.h @ 604:4541581067f3
* Better handling of failed-to-open-output-stream situations; ensure CSV
writer closes files when they're finished rather than when it's finished
author | Chris Cannam |
---|---|
date | Tue, 08 Sep 2009 16:52:36 +0000 |
parents | 1aefb666ecfc |
children | 608b4dc5ff34 |
line wrap: on
line source
/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* Sonic Visualiser An audio file viewer and annotation editor. 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. */ #ifndef _FEATURE_WRITER_H_ #define _FEATURE_WRITER_H_ #include <string> #include <map> #include <vector> #include <QString> #include "Transform.h" #include <vamp-hostsdk/Plugin.h> using std::string; using std::map; using std::vector; class FeatureWriter { public: virtual ~FeatureWriter() { } struct Parameter { // parameter of the writer, not the plugin string name; string description; bool hasArg; }; typedef vector<Parameter> ParameterList; virtual ParameterList getSupportedParameters() const { return ParameterList(); } virtual void setParameters(map<string, string> ¶ms) { return; } struct TrackMetadata { QString title; QString maker; }; virtual void setTrackMetadata(QString trackid, TrackMetadata metadata) { } class FailedToOpenOutputStream : virtual public std::exception { public: FailedToOpenOutputStream(QString trackId, QString transformId) throw() : m_trackId(trackId), m_transformId(transformId) { } virtual ~FailedToOpenOutputStream() throw() { } virtual const char *what() const throw() { return QString("Failed to open output stream for track id \"%1\", transform id \"%2\"") .arg(m_trackId).arg(m_transformId).toLocal8Bit().data(); } protected: QString m_trackId; QString m_transformId; }; // may throw FailedToOpenFile or other exceptions virtual void write(QString trackid, const Transform &transform, const Vamp::Plugin::OutputDescriptor &output, const Vamp::Plugin::FeatureList &features, std::string summaryType = "") = 0; virtual void flush() { } // whatever the last stream was virtual void finish() = 0; virtual QString getWriterTag() const = 0; }; #endif