123 lines
3.5 KiB
C++
123 lines
3.5 KiB
C++
/* This file is part of Clementine.
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Clementine is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Clementine is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Clementine. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "m3uparser.h"
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#include <QBuffer>
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#include <QtDebug>
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M3UParser::M3UParser(QObject* parent)
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: ParserBase(parent)
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{
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}
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SongList M3UParser::Load(QIODevice* device, const QDir& dir) const {
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SongList ret;
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M3UType type = STANDARD;
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Metadata current_metadata;
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QString data = QString::fromUtf8(device->readAll());
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data.replace('\r', '\n');
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data.replace("\n\n", "\n");
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QByteArray bytes = data.toUtf8();
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QBuffer buffer(&bytes);
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buffer.open(QIODevice::ReadOnly);
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QString line = QString::fromUtf8(buffer.readLine()).trimmed();
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qDebug() << line;
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if (line.startsWith("#EXTM3U")) {
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// This is in extended M3U format.
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type = EXTENDED;
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line = QString::fromUtf8(buffer.readLine()).trimmed();
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}
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forever {
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qDebug() << line;
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if (line.startsWith('#')) {
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// Extended info or comment.
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if (type == EXTENDED && line.startsWith("#EXT")) {
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if (!ParseMetadata(line, ¤t_metadata)) {
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qWarning() << "Failed to parse metadata: " << line;
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continue;
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}
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}
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} else {
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Song song;
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song.Init(current_metadata.title,
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current_metadata.artist,
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QString(), // Unknown album.
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current_metadata.length);
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// Track location.
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if (!ParseTrackLocation(line, dir, &song)) {
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qWarning() << "Failed to parse location: " << line;
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} else {
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ret << song;
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current_metadata.artist.clear();
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current_metadata.title.clear();
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current_metadata.length = -1;
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}
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}
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if (buffer.atEnd()) {
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break;
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}
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line = QString::fromUtf8(buffer.readLine()).trimmed();
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}
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return ret;
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}
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bool M3UParser::ParseMetadata(const QString& line, M3UParser::Metadata* metadata) const {
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// Extended info, eg.
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// #EXTINF:123,Sample Artist - Sample title
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QString info = line.section(':', 1);
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QString l = info.section(',', 0, 0);
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bool ok = false;
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int length = l.toInt(&ok);
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if (!ok) {
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return false;
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}
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metadata->length = length;
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QString track_info = info.section(',', 1);
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QStringList list = track_info.split('-');
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if (list.size() <= 1) {
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metadata->title = track_info;
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return true;
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}
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metadata->artist = list[0].trimmed();
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metadata->title = list[1].trimmed();
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return true;
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}
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void M3UParser::Save(const SongList &songs, QIODevice *device, const QDir &dir) const {
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device->write("#EXTM3U\n");
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foreach (const Song& song, songs) {
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if (song.filename().isEmpty()) {
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continue;
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}
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QString meta = QString("#EXTINF:%1,%2 - %3\n").arg(song.length()).arg(song.artist()).arg(song.title());
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device->write(meta.toUtf8());
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device->write(MakeRelativeTo(song.filename(), dir).toUtf8());
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device->write("\n");
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}
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}
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bool M3UParser::TryMagic(const QByteArray &data) const {
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return data.contains("#EXTM3U") || data.contains("#EXTINF");
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}
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