diff options
Diffstat (limited to 'src/plugins/Input/opus/opusmetadatamodel.cpp')
| -rw-r--r-- | src/plugins/Input/opus/opusmetadatamodel.cpp | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/src/plugins/Input/opus/opusmetadatamodel.cpp b/src/plugins/Input/opus/opusmetadatamodel.cpp new file mode 100644 index 000000000..254abb582 --- /dev/null +++ b/src/plugins/Input/opus/opusmetadatamodel.cpp @@ -0,0 +1,213 @@ +/*************************************************************************** + * Copyright (C) 2013 by Ilya Kotov * + * forkotov02@hotmail.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 <taglib/tag.h> +#include <taglib/fileref.h> +#include "opusfile.h" +#include <taglib/xiphcomment.h> +#include <taglib/tmap.h> +#include "opusmetadatamodel.h" + +#define QStringToTString_qt4(s) TagLib::String(s.toUtf8().constData(), TagLib::String::UTF8) +#define TStringToQString_qt4(s) QString::fromUtf8(s.toCString(true)).trimmed() + +OpusMetaDataModel::OpusMetaDataModel(const QString &path, QObject *parent) : MetaDataModel(parent) +{ + m_path = path; + m_tags << new VorbisCommentModel(path); +} + +OpusMetaDataModel::~OpusMetaDataModel() +{ + while(!m_tags.isEmpty()) + delete m_tags.takeFirst(); +} + +QHash<QString, QString> OpusMetaDataModel::audioProperties() +{ + QHash<QString, QString> ap; + TagLib::Ogg::Opus::File f (m_path.toLocal8Bit().constData()); + if(f.audioProperties()) + { + QString text = QString("%1").arg(f.audioProperties()->length()/60); + text +=":"+QString("%1").arg(f.audioProperties()->length()%60,2,10,QChar('0')); + ap.insert(tr("Length"), text); + ap.insert(tr("Sample rate"), QString("%1 " + tr("Hz")).arg(f.audioProperties()->sampleRate())); + ap.insert(tr("Channels"), QString("%1").arg(f.audioProperties()->channels())); + ap.insert(tr("Bitrate"), QString("%1 " + tr("kbps")).arg(f.audioProperties()->bitrate())); + ap.insert(tr("File size"), QString("%1 "+tr("KB")).arg(f.length()/1024)); + } + return ap; +} + +QList<TagModel* > OpusMetaDataModel::tags() +{ + return m_tags; +} + +QPixmap OpusMetaDataModel::cover() +{ + TagLib::Ogg::Opus::File file(m_path.toLocal8Bit().constData()); + TagLib::Ogg::XiphComment *tag = file.tag(); + if(!tag) + return QPixmap(); + TagLib::StringList list = tag->fieldListMap()["METADATA_BLOCK_PICTURE"]; + if(list.isEmpty()) + return QPixmap(); + for(uint i = 0; i < list.size(); ++i) + { + TagLib::String value = list[i]; + QByteArray block = QByteArray::fromBase64(TStringToQString_qt4(value).toAscii()); + if(block.size() < 32) + continue; + qint64 pos = 0; + if(readPictureBlockField(block, pos) != 3) //picture type, use front cover only + continue; + pos += 4; + int mimeLength = readPictureBlockField(block, pos); //mime type length + pos += 4; + pos += mimeLength; //skip mime type + int descLength = readPictureBlockField(block, pos); //description length + pos += 4; + pos += descLength; //skip description + pos += 4; //width + pos += 4; //height + pos += 4; //color depth + pos += 4; //the number of colors used + int length = readPictureBlockField(block, pos); //picture size + pos += 4; + QPixmap cover; + cover.loadFromData(block.mid(pos, length)); //read binary picture data + return cover; + } + return QPixmap(); +} + +ulong OpusMetaDataModel::readPictureBlockField(QByteArray data, int offset) +{ + return (((uchar)data.data()[offset] & 0xff) << 24) | + (((uchar)data.data()[offset+1] & 0xff) << 16) | + (((uchar)data.data()[offset+2] & 0xff) << 16) | + ((uchar)data.data()[offset+3] & 0xff); + +} + +VorbisCommentModel::VorbisCommentModel(const QString &path) : TagModel(TagModel::Save) +{ + m_file = new TagLib::Ogg::Opus::File (path.toLocal8Bit().constData()); + m_tag = m_file->tag(); +} + +VorbisCommentModel::~VorbisCommentModel() +{ + delete m_file; +} + +const QString VorbisCommentModel::name() +{ + return "Vorbis Comment"; +} + +const QString VorbisCommentModel::value(Qmmp::MetaData key) +{ + if(!m_tag) + return QString(); + switch((int) key) + { + case Qmmp::TITLE: + return TStringToQString_qt4(m_tag->title()); + case Qmmp::ARTIST: + return TStringToQString_qt4(m_tag->artist()); + case Qmmp::ALBUM: + return TStringToQString_qt4(m_tag->album()); + case Qmmp::COMMENT: + return TStringToQString_qt4(m_tag->comment()); + case Qmmp::GENRE: + return TStringToQString_qt4(m_tag->genre()); + case Qmmp::COMPOSER: + if(m_tag->fieldListMap()["COMPOSER"].isEmpty()) + return QString(); + else + return TStringToQString_qt4(m_tag->fieldListMap()["COMPOSER"].front()); + case Qmmp::YEAR: + return QString::number(m_tag->year()); + case Qmmp::TRACK: + return QString::number(m_tag->track()); + case Qmmp::DISCNUMBER: + if(m_tag->fieldListMap()["DISCNUMBER"].isEmpty()) + return QString(); + else + return TStringToQString_qt4(m_tag->fieldListMap()["DISCNUMBER"].front()); + } + return QString(); +} + +void VorbisCommentModel::setValue(Qmmp::MetaData key, const QString &value) +{ + if(!m_tag) + return; + + TagLib::String str = QStringToTString_qt4(value); + + switch((int) key) + { + case Qmmp::TITLE: + m_tag->setTitle(str); + return; + case Qmmp::ARTIST: + m_tag->setArtist(str); + return; + case Qmmp::ALBUM: + m_tag->setAlbum(str); + return; + case Qmmp::COMMENT: + m_tag->setComment(str); + return; + case Qmmp::GENRE: + m_tag->setGenre(str); + return; + case Qmmp::COMPOSER: + value.isEmpty() ? + m_tag->removeField("COMPOSER"): + m_tag->addField("COMPOSER", str, true); + return; + case Qmmp::TRACK: + m_tag->setTrack(value.toInt()); + return; + case Qmmp::YEAR: + m_tag->setYear(value.toInt()); + return; + case Qmmp::DISCNUMBER: + value == "0" ? + m_tag->removeField("DISCNUMBER"): + m_tag->addField("DISCNUMBER", str, true); + } +} + +void VorbisCommentModel::save() +{ + if(m_tag) + m_file->save(); + //taglib bug workarround + QString path = QString::fromLocal8Bit(m_file->name()); + delete m_file; + m_file = new TagLib::Ogg::Opus::File(path.toLocal8Bit().constData()); + m_tag = m_file->tag(); +} |