diff options
Diffstat (limited to 'src/plugins/Input/mpeg/replaygainreader.cpp')
| -rw-r--r-- | src/plugins/Input/mpeg/replaygainreader.cpp | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/src/plugins/Input/mpeg/replaygainreader.cpp b/src/plugins/Input/mpeg/replaygainreader.cpp new file mode 100644 index 000000000..e66734562 --- /dev/null +++ b/src/plugins/Input/mpeg/replaygainreader.cpp @@ -0,0 +1,91 @@ +/*************************************************************************** + * Copyright (C) 2009-2018 by Ilya Kotov * + * forkotov02@ya.ru * + * * + * 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. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * + ***************************************************************************/ + +#include <QtGlobal> +#include <taglib/mpegfile.h> +#include <taglib/id3v2tag.h> +#include <taglib/tag.h> +#include <taglib/id3v1tag.h> +#include <taglib/id3v2header.h> +#include <taglib/textidentificationframe.h> +#include <taglib/tfilestream.h> +#include <taglib/id3v2framefactory.h> +#include "replaygainreader.h" + +ReplayGainReader::ReplayGainReader(const QString &path) +{ + TagLib::FileStream stream(QStringToFileName(path), true); + TagLib::MPEG::File fileRef(&stream, TagLib::ID3v2::FrameFactory::instance()); + if(fileRef.ID3v2Tag()) + readID3v2(fileRef.ID3v2Tag()); + if(m_values.isEmpty() && fileRef.APETag()) + readAPE(fileRef.APETag()); +} + +QMap <Qmmp::ReplayGainKey, double> ReplayGainReader::replayGainInfo() const +{ + return m_values; +} + +void ReplayGainReader::readID3v2(TagLib::ID3v2::Tag *tag) +{ + TagLib::ID3v2::UserTextIdentificationFrame* frame = 0; + TagLib::ID3v2::FrameList frames = tag->frameList("TXXX"); + for(TagLib::ID3v2::FrameList::Iterator it = frames.begin(); it != frames.end(); ++it) + { + frame = dynamic_cast<TagLib::ID3v2::UserTextIdentificationFrame*>(*it); + if(frame && frame->fieldList().size() >= 2) + { + TagLib::String desc = frame->description().upper(); + if (desc == "REPLAYGAIN_TRACK_GAIN") + setValue(Qmmp::REPLAYGAIN_TRACK_GAIN, TStringToQString(frame->fieldList()[1])); + else if (desc == "REPLAYGAIN_TRACK_PEAK") + setValue(Qmmp::REPLAYGAIN_TRACK_PEAK, TStringToQString(frame->fieldList()[1])); + else if (desc == "REPLAYGAIN_ALBUM_GAIN") + setValue(Qmmp::REPLAYGAIN_ALBUM_GAIN, TStringToQString(frame->fieldList()[1])); + else if (desc == "REPLAYGAIN_ALBUM_PEAK") + setValue(Qmmp::REPLAYGAIN_ALBUM_PEAK, TStringToQString(frame->fieldList()[1])); + } + } +} + +void ReplayGainReader::readAPE(TagLib::APE::Tag *tag) +{ + TagLib::APE::ItemListMap items = tag->itemListMap(); + if (items.contains("REPLAYGAIN_TRACK_GAIN")) + setValue(Qmmp::REPLAYGAIN_TRACK_GAIN,TStringToQString(items["REPLAYGAIN_TRACK_GAIN"].values()[0])); + if (items.contains("REPLAYGAIN_TRACK_PEAK")) + setValue(Qmmp::REPLAYGAIN_TRACK_PEAK,TStringToQString(items["REPLAYGAIN_TRACK_PEAK"].values()[0])); + if (items.contains("REPLAYGAIN_ALBUM_GAIN")) + setValue(Qmmp::REPLAYGAIN_ALBUM_GAIN,TStringToQString(items["REPLAYGAIN_ALBUM_GAIN"].values()[0])); + if (items.contains("REPLAYGAIN_ALBUM_PEAK")) + setValue(Qmmp::REPLAYGAIN_ALBUM_PEAK,TStringToQString(items["REPLAYGAIN_ALBUM_PEAK"].values()[0])); +} + +void ReplayGainReader::setValue(Qmmp::ReplayGainKey key, QString value) +{ + value.remove(" dB"); + if(value.isEmpty()) + return; + bool ok; + double v = value.toDouble(&ok); + if(ok) + m_values[key] = v; +} |