Mercurial > hg > svcore
view data/fileio/PlaylistFileReader.cpp @ 1008:d9e0e59a1581
When using an aggregate model to pass data to a transform, zero-pad the shorter input to the duration of the longer rather than truncating the longer. (This is better behaviour for e.g. MATCH, and in any case the code was previously truncating incorrectly and ending up with garbage data at the end.)
author | Chris Cannam |
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date | Fri, 14 Nov 2014 13:51:33 +0000 |
parents | f5cd33909744 |
children | 48e9f538e6e9 |
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/* -*- 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. Centre for Digital Music, Queen Mary, University of London. This file copyright 2007 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 "PlaylistFileReader.h" #include <QFile> #include <QTextStream> #include <QStringList> #include <QFileInfo> #include <QDir> #include <iostream> PlaylistFileReader::PlaylistFileReader(QString path) : m_source(path), m_file(0) { if (!m_source.isAvailable()) { m_error = QFile::tr("File or URL \"%1\" could not be retrieved") .arg(path); return; } init(); } PlaylistFileReader::PlaylistFileReader(FileSource source) : m_source(source), m_file(0) { if (!m_source.isAvailable()) { m_error = QFile::tr("File or URL \"%1\" could not be retrieved") .arg(source.getLocation()); return; } init(); } PlaylistFileReader::~PlaylistFileReader() { if (m_file) m_file->close(); delete m_file; } void PlaylistFileReader::init() { if (!m_source.isAvailable()) return; m_source.waitForData(); QString filename = m_source.getLocalFilename(); m_file = new QFile(filename); bool good = false; if (!m_file->exists()) { m_error = QFile::tr("File \"%1\" does not exist") .arg(m_source.getLocation()); } else if (!m_file->open(QIODevice::ReadOnly | QIODevice::Text)) { m_error = QFile::tr("Failed to open file \"%1\"") .arg(m_source.getLocation()); } else { good = true; } if (good) { if (!m_source.isRemote()) { m_basedir = QFileInfo(filename).dir().canonicalPath(); } } if (!good) { delete m_file; m_file = 0; } } bool PlaylistFileReader::isOK() const { return (m_file != 0); } QString PlaylistFileReader::getError() const { return m_error; } PlaylistFileReader::Playlist PlaylistFileReader::load() const { if (!m_file) return Playlist(); QTextStream in(m_file); in.seek(0); Playlist playlist; while (!in.atEnd()) { // cope with old-style Mac line endings (c.f. CSVFileReader) // as well as DOS/Unix style QString chunk = in.readLine(); QStringList lines = chunk.split('\r', QString::SkipEmptyParts); for (int li = 0; li < lines.size(); ++li) { QString line = lines[li]; if (line.startsWith("#")) continue; // line is expected to be a URL or a file path. If it // appears to be a local relative file path, then we // should check whether it can be resolved relative to the // location of the playlist file and, if so, do so. if (!FileSource::isRemote(line)) { if (QFileInfo(line).isRelative() && m_basedir != "") { QString testpath = QDir(m_basedir).filePath(line); if (QFileInfo(testpath).exists() && QFileInfo(testpath).isFile()) { cerr << "Path \"" << line << "\" is relative, resolving to \"" << testpath << "\"" << endl; line = testpath; } } } playlist.push_back(line); } } return playlist; } void PlaylistFileReader::getSupportedExtensions(std::set<QString> &extensions) { extensions.insert("m3u"); }