199 lines
6.0 KiB
C++
199 lines
6.0 KiB
C++
/***************************************************************************
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copyright : (C) 2002 - 2008 by Scott Wheeler
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email : wheeler@kde.org
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copyright : (C) 2006 by Urs Fleisch
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email : ufleisch@users.sourceforge.net
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***************************************************************************/
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/***************************************************************************
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* This library is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU Lesser General Public License version *
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* 2.1 as published by the Free Software Foundation. *
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* *
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* This library is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with this library; if not, write to the Free Software *
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA *
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* 02110-1301 USA *
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* *
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* Alternatively, this file is available under the Mozilla Public *
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* License Version 1.1. You may obtain a copy of the License at *
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* http://www.mozilla.org/MPL/ *
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***************************************************************************/
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#include "unsynchronizedlyricsframe.h"
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#include <tbytevectorlist.h>
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#include <id3v2tag.h>
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#include <tdebug.h>
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#include <tpropertymap.h>
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using namespace TagLib;
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using namespace ID3v2;
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class UnsynchronizedLyricsFrame::UnsynchronizedLyricsFramePrivate
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{
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public:
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UnsynchronizedLyricsFramePrivate() : textEncoding(String::Latin1) {}
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String::Type textEncoding;
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ByteVector language;
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String description;
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String text;
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};
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////////////////////////////////////////////////////////////////////////////////
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// public members
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////////////////////////////////////////////////////////////////////////////////
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UnsynchronizedLyricsFrame::UnsynchronizedLyricsFrame(String::Type encoding) :
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Frame("USLT"),
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d(new UnsynchronizedLyricsFramePrivate())
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{
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d->textEncoding = encoding;
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}
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UnsynchronizedLyricsFrame::UnsynchronizedLyricsFrame(const ByteVector &data) :
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Frame(data),
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d(new UnsynchronizedLyricsFramePrivate())
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{
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setData(data);
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}
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UnsynchronizedLyricsFrame::~UnsynchronizedLyricsFrame()
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{
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delete d;
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}
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String UnsynchronizedLyricsFrame::toString() const
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{
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return d->text;
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}
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ByteVector UnsynchronizedLyricsFrame::language() const
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{
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return d->language;
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}
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String UnsynchronizedLyricsFrame::description() const
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{
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return d->description;
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}
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String UnsynchronizedLyricsFrame::text() const
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{
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return d->text;
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}
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void UnsynchronizedLyricsFrame::setLanguage(const ByteVector &languageEncoding)
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{
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d->language = languageEncoding.mid(0, 3);
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}
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void UnsynchronizedLyricsFrame::setDescription(const String &s)
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{
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d->description = s;
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}
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void UnsynchronizedLyricsFrame::setText(const String &s)
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{
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d->text = s;
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}
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String::Type UnsynchronizedLyricsFrame::textEncoding() const
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{
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return d->textEncoding;
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}
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void UnsynchronizedLyricsFrame::setTextEncoding(String::Type encoding)
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{
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d->textEncoding = encoding;
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}
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PropertyMap UnsynchronizedLyricsFrame::asProperties() const
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{
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PropertyMap map;
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String key = description().upper();
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if(key.isEmpty() || key == "LYRICS")
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map.insert("LYRICS", text());
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else
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map.insert("LYRICS:" + key, text());
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return map;
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}
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UnsynchronizedLyricsFrame *UnsynchronizedLyricsFrame::findByDescription(const ID3v2::Tag *tag, const String &d) // static
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{
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ID3v2::FrameList lyrics = tag->frameList("USLT");
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for(ID3v2::FrameList::ConstIterator it = lyrics.begin(); it != lyrics.end(); ++it){
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UnsynchronizedLyricsFrame *frame = dynamic_cast<UnsynchronizedLyricsFrame *>(*it);
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if(frame && frame->description() == d)
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return frame;
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}
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return 0;
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}
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////////////////////////////////////////////////////////////////////////////////
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// protected members
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////////////////////////////////////////////////////////////////////////////////
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void UnsynchronizedLyricsFrame::parseFields(const ByteVector &data)
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{
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if(data.size() < 5) {
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debug("An unsynchronized lyrics frame must contain at least 5 bytes.");
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return;
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}
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d->textEncoding = String::Type(data[0]);
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d->language = data.mid(1, 3);
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int byteAlign
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= d->textEncoding == String::Latin1 || d->textEncoding == String::UTF8 ? 1 : 2;
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ByteVectorList l =
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ByteVectorList::split(data.mid(4), textDelimiter(d->textEncoding), byteAlign, 2);
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if(l.size() == 2) {
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if(d->textEncoding == String::Latin1) {
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d->description = Tag::latin1StringHandler()->parse(l.front());
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d->text = Tag::latin1StringHandler()->parse(l.back());
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} else {
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d->description = String(l.front(), d->textEncoding);
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d->text = String(l.back(), d->textEncoding);
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}
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}
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}
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ByteVector UnsynchronizedLyricsFrame::renderFields() const
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{
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StringList sl;
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sl.append(d->description);
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sl.append(d->text);
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const String::Type encoding = checkTextEncoding(sl, d->textEncoding);
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ByteVector v;
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v.append(char(encoding));
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v.append(d->language.size() == 3 ? d->language : "XXX");
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v.append(d->description.data(encoding));
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v.append(textDelimiter(encoding));
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v.append(d->text.data(encoding));
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return v;
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}
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////////////////////////////////////////////////////////////////////////////////
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// private members
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////////////////////////////////////////////////////////////////////////////////
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UnsynchronizedLyricsFrame::UnsynchronizedLyricsFrame(const ByteVector &data, Header *h) :
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Frame(h),
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d(new UnsynchronizedLyricsFramePrivate())
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{
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parseFields(fieldData(data));
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}
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