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Clementine-audio-player-Mac.../ext/libclementine-tagreader/tagreader.cpp
Martin Babutzka 258ae281d8 IDv3 tag lyrics support. 
Squashed the following commits:

5c723ad commit: Fix: Includes alpha sort
15ac350 commit: Fix: Updated Database::kSchemaVersion to 49.
767a26a commit: Fixed small code style issue. Added schema-49 to data.qrc instead schema-48
bf6aa64 commit: fixup! Modified async handling of CollapsibleInfoPane as recommended by Andreas. Display of IDv2 tag lyrics works now.
c1f97e9 commit: fixup! Added support to read/display the ID tag lyrics in MP3 files:
c946b1d commit: Added support to read/display the ID tag lyrics in MP3 files:

-Added schema to the database to store it
-Added readers/writers for ID tags
-Added readers/writers for the database to the song class
-Added the taglyricsinfoprovider to show the lyrics in songinfo
2015-04-10 21:05:07 +02:00

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/* This file is part of Clementine.
Copyright 2013, David Sansome <me@davidsansome.com>
Clementine 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 3 of the License, or
(at your option) any later version.
Clementine 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 Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#include "tagreader.h"
#include <memory>
#include <QCoreApplication>
#include <QDateTime>
#include <QFileInfo>
#include <QNetworkAccessManager>
#include <QTextCodec>
#include <QUrl>
#include <aifffile.h>
#include <asffile.h>
#include <attachedpictureframe.h>
#include <commentsframe.h>
#include <fileref.h>
#include <flacfile.h>
#include <id3v2tag.h>
#include <mp4file.h>
#include <mp4tag.h>
#include <mpcfile.h>
#include <mpegfile.h>
#include <oggfile.h>
#ifdef TAGLIB_HAS_OPUS
#include <opusfile.h>
#endif
#include <oggflacfile.h>
#include <popularimeterframe.h>
#include <speexfile.h>
#include <tag.h>
#include <textidentificationframe.h>
#include <trueaudiofile.h>
#include <tstring.h>
#include <vorbisfile.h>
#include <wavfile.h>
#include <sys/stat.h>
#include "fmpsparser.h"
#include "core/logging.h"
#include "core/messagehandler.h"
#include "core/timeconstants.h"
// Taglib added support for FLAC pictures in 1.7.0
#if (TAGLIB_MAJOR_VERSION > 1) || \
(TAGLIB_MAJOR_VERSION == 1 && TAGLIB_MINOR_VERSION >= 7)
#define TAGLIB_HAS_FLAC_PICTURELIST
#endif
#ifdef HAVE_GOOGLE_DRIVE
#include "cloudstream.h"
#endif
#define NumberToASFAttribute(x) \
TagLib::ASF::Attribute(QStringToTaglibString(QString::number(x)))
class FileRefFactory {
public:
virtual ~FileRefFactory() {}
virtual TagLib::FileRef* GetFileRef(const QString& filename) = 0;
};
class TagLibFileRefFactory : public FileRefFactory {
public:
virtual TagLib::FileRef* GetFileRef(const QString& filename) {
#ifdef Q_OS_WIN32
return new TagLib::FileRef(filename.toStdWString().c_str());
#else
return new TagLib::FileRef(QFile::encodeName(filename).constData());
#endif
}
};
namespace {
TagLib::String StdStringToTaglibString(const std::string& s) {
return TagLib::String(s.c_str(), TagLib::String::UTF8);
}
TagLib::String QStringToTaglibString(const QString& s) {
return TagLib::String(s.toUtf8().constData(), TagLib::String::UTF8);
}
}
const char* TagReader::kMP4_FMPS_Rating_ID =
"----:com.apple.iTunes:FMPS_Rating";
const char* TagReader::kMP4_FMPS_Playcount_ID =
"----:com.apple.iTunes:FMPS_Playcount";
const char* TagReader::kMP4_FMPS_Score_ID =
"----:com.apple.iTunes:FMPS_Rating_Amarok_Score";
TagReader::TagReader()
: factory_(new TagLibFileRefFactory),
network_(new QNetworkAccessManager),
kEmbeddedCover("(embedded)") {}
void TagReader::ReadFile(const QString& filename,
pb::tagreader::SongMetadata* song) const {
const QByteArray url(QUrl::fromLocalFile(filename).toEncoded());
const QFileInfo info(filename);
qLog(Debug) << "Reading tags from" << filename;
song->set_basefilename(DataCommaSizeFromQString(info.fileName()));
song->set_url(url.constData(), url.size());
song->set_filesize(info.size());
song->set_mtime(info.lastModified().toTime_t());
song->set_ctime(info.created().toTime_t());
std::unique_ptr<TagLib::FileRef> fileref(factory_->GetFileRef(filename));
if (fileref->isNull()) {
qLog(Info) << "TagLib hasn't been able to read " << filename << " file";
return;
}
TagLib::Tag* tag = fileref->tag();
if (tag) {
Decode(tag->title(), nullptr, song->mutable_title());
Decode(tag->artist(), nullptr, song->mutable_artist()); // TPE1
Decode(tag->album(), nullptr, song->mutable_album());
Decode(tag->genre(), nullptr, song->mutable_genre());
song->set_year(tag->year());
song->set_track(tag->track());
song->set_valid(true);
}
QString disc;
QString compilation;
QString lyrics;
// Handle all the files which have VorbisComments (Ogg, OPUS, ...) in the same
// way;
// apart, so we keep specific behavior for some formats by adding another
// "else if" block below.
if (TagLib::Ogg::XiphComment* tag =
dynamic_cast<TagLib::Ogg::XiphComment*>(fileref->file()->tag())) {
ParseOggTag(tag->fieldListMap(), nullptr, &disc, &compilation, song);
}
if (TagLib::MPEG::File* file =
dynamic_cast<TagLib::MPEG::File*>(fileref->file())) {
if (file->ID3v2Tag()) {
const TagLib::ID3v2::FrameListMap& map = file->ID3v2Tag()->frameListMap();
if (!map["TPOS"].isEmpty())
disc = TStringToQString(map["TPOS"].front()->toString()).trimmed();
if (!map["TBPM"].isEmpty())
song->set_bpm(TStringToQString(map["TBPM"].front()->toString())
.trimmed()
.toFloat());
if (!map["TCOM"].isEmpty())
Decode(map["TCOM"].front()->toString(), nullptr,
song->mutable_composer());
if (!map["TIT1"].isEmpty()) // content group
Decode(map["TIT1"].front()->toString(), nullptr,
song->mutable_grouping());
if (!map["TOPE"].isEmpty()) // original artist/performer
Decode(map["TOPE"].front()->toString(), nullptr,
song->mutable_performer());
// Skip TPE1 (which is the artist) here because we already fetched it
if (!map["TPE2"].isEmpty()) // non-standard: Apple, Microsoft
Decode(map["TPE2"].front()->toString(), nullptr,
song->mutable_albumartist());
if (!map["TCMP"].isEmpty())
compilation =
TStringToQString(map["TCMP"].front()->toString()).trimmed();
if (!map["USLT"].isEmpty()) {
lyrics = TStringToQString((map["USLT"].front())->toString()).trimmed();
qLog(Debug) << "Read ULST lyrics " << lyrics;
} else if (!map["SYLT"].isEmpty())
lyrics = TStringToQString((map["SYLT"].front())->toString()).trimmed();
if (!map["APIC"].isEmpty()) song->set_art_automatic(kEmbeddedCover);
// Find a suitable comment tag. For now we ignore iTunNORM comments.
for (int i = 0; i < map["COMM"].size(); ++i) {
const TagLib::ID3v2::CommentsFrame* frame =
dynamic_cast<const TagLib::ID3v2::CommentsFrame*>(map["COMM"][i]);
if (frame && TStringToQString(frame->description()) != "iTunNORM") {
Decode(frame->text(), nullptr, song->mutable_comment());
break;
}
}
// Parse FMPS frames
for (int i = 0; i < map["TXXX"].size(); ++i) {
const TagLib::ID3v2::UserTextIdentificationFrame* frame =
dynamic_cast<const TagLib::ID3v2::UserTextIdentificationFrame*>(
map["TXXX"][i]);
if (frame && frame->description().startsWith("FMPS_")) {
ParseFMPSFrame(TStringToQString(frame->description()),
TStringToQString(frame->fieldList()[1]), song);
}
}
// Check POPM tags
// We do this after checking FMPS frames, so FMPS have precedence, as we
// will consider POPM tags iff song has no rating/playcount already set.
if (!map["POPM"].isEmpty()) {
const TagLib::ID3v2::PopularimeterFrame* frame =
dynamic_cast<const TagLib::ID3v2::PopularimeterFrame*>(
map["POPM"].front());
if (frame) {
// Take a user rating only if there's no rating already set
if (song->rating() <= 0 && frame->rating() > 0) {
song->set_rating(ConvertPOPMRating(frame->rating()));
}
if (song->playcount() <= 0 && frame->counter() > 0) {
song->set_playcount(frame->counter());
}
}
}
}
} else if (TagLib::FLAC::File* file =
dynamic_cast<TagLib::FLAC::File*>(fileref->file())) {
if (file->xiphComment()) {
ParseOggTag(file->xiphComment()->fieldListMap(), nullptr, &disc,
&compilation, song);
#ifdef TAGLIB_HAS_FLAC_PICTURELIST
if (!file->pictureList().isEmpty()) {
song->set_art_automatic(kEmbeddedCover);
}
#endif
}
Decode(tag->comment(), nullptr, song->mutable_comment());
} else if (TagLib::MP4::File* file =
dynamic_cast<TagLib::MP4::File*>(fileref->file())) {
if (file->tag()) {
TagLib::MP4::Tag* mp4_tag = file->tag();
const TagLib::MP4::ItemListMap& items = mp4_tag->itemListMap();
// Find album artists
TagLib::MP4::ItemListMap::ConstIterator it = items.find("aART");
if (it != items.end()) {
TagLib::StringList album_artists = it->second.toStringList();
if (!album_artists.isEmpty()) {
Decode(album_artists.front(), nullptr, song->mutable_albumartist());
}
}
// Find album cover art
if (items.find("covr") != items.end()) {
song->set_art_automatic(kEmbeddedCover);
}
if (items.contains("disk")) {
disc = TStringToQString(
TagLib::String::number(items["disk"].toIntPair().first));
}
if (items.contains(kMP4_FMPS_Rating_ID)) {
float rating =
TStringToQString(items[kMP4_FMPS_Rating_ID].toStringList().toString(
'\n')).toFloat();
if (song->rating() <= 0 && rating > 0) {
song->set_rating(rating);
}
}
if (items.contains(kMP4_FMPS_Playcount_ID)) {
int playcount =
TStringToQString(
items[kMP4_FMPS_Playcount_ID].toStringList().toString('\n'))
.toFloat();
if (song->playcount() <= 0 && playcount > 0) {
song->set_playcount(playcount);
}
}
if (items.contains(kMP4_FMPS_Playcount_ID)) {
int score = TStringToQString(
items[kMP4_FMPS_Score_ID].toStringList().toString('\n'))
.toFloat() *
100;
if (song->score() <= 0 && score > 0) {
song->set_score(score);
}
}
if (items.contains("\251wrt")) {
Decode(items["\251wrt"].toStringList().toString(", "), nullptr,
song->mutable_composer());
}
if (items.contains("\251grp")) {
Decode(items["\251grp"].toStringList().toString(" "), nullptr,
song->mutable_grouping());
}
Decode(mp4_tag->comment(), nullptr, song->mutable_comment());
}
}
#ifdef TAGLIB_WITH_ASF
else if (TagLib::ASF::File* file =
dynamic_cast<TagLib::ASF::File*>(fileref->file())) {
const TagLib::ASF::AttributeListMap& attributes_map =
file->tag()->attributeListMap();
if (attributes_map.contains("FMPS/Rating")) {
const TagLib::ASF::AttributeList& attributes =
attributes_map["FMPS/Rating"];
if (!attributes.isEmpty()) {
float rating =
TStringToQString(attributes.front().toString()).toFloat();
if (song->rating() <= 0 && rating > 0) {
song->set_rating(rating);
}
}
}
if (attributes_map.contains("FMPS/Playcount")) {
const TagLib::ASF::AttributeList& attributes =
attributes_map["FMPS/Playcount"];
if (!attributes.isEmpty()) {
int playcount = TStringToQString(attributes.front().toString()).toInt();
if (song->playcount() <= 0 && playcount > 0) {
song->set_playcount(playcount);
}
}
}
if (attributes_map.contains("FMPS/Rating_Amarok_Score")) {
const TagLib::ASF::AttributeList& attributes =
attributes_map["FMPS/Rating_Amarok_Score"];
if (!attributes.isEmpty()) {
int score =
TStringToQString(attributes.front().toString()).toFloat() * 100;
if (song->score() <= 0 && score > 0) {
song->set_score(score);
}
}
}
}
#endif
else if (tag) {
Decode(tag->comment(), nullptr, song->mutable_comment());
}
if (!disc.isEmpty()) {
const int i = disc.indexOf('/');
if (i != -1) {
// disc.right( i ).toInt() is total number of discs, we don't use this at
// the moment
song->set_disc(disc.left(i).toInt());
} else {
song->set_disc(disc.toInt());
}
}
if (compilation.isEmpty()) {
// well, it wasn't set, but if the artist is VA assume it's a compilation
if (QStringFromStdString(song->artist()).toLower() == "various artists") {
song->set_compilation(true);
}
} else {
song->set_compilation(compilation.toInt() == 1);
}
if (!lyrics.isEmpty()) song->set_lyrics(lyrics.toStdString());
if (fileref->audioProperties()) {
song->set_bitrate(fileref->audioProperties()->bitrate());
song->set_samplerate(fileref->audioProperties()->sampleRate());
song->set_length_nanosec(fileref->audioProperties()->length() *
kNsecPerSec);
}
// Get the filetype if we can
song->set_type(GuessFileType(fileref.get()));
// Set integer fields to -1 if they're not valid
#define SetDefault(field) \
if (song->field() <= 0) { \
song->set_##field(-1); \
}
SetDefault(track);
SetDefault(disc);
SetDefault(bpm);
SetDefault(year);
SetDefault(bitrate);
SetDefault(samplerate);
SetDefault(lastplayed);
#undef SetDefault
}
void TagReader::Decode(const TagLib::String& tag, const QTextCodec* codec,
std::string* output) {
QString tmp;
if (codec && tag.isLatin1()) { // Never override UTF-8.
const std::string fixed =
QString::fromUtf8(tag.toCString(true)).toStdString();
tmp = codec->toUnicode(fixed.c_str()).trimmed();
} else {
tmp = TStringToQString(tag).trimmed();
}
output->assign(DataCommaSizeFromQString(tmp));
}
void TagReader::Decode(const QString& tag, const QTextCodec* codec,
std::string* output) {
if (!codec) {
output->assign(DataCommaSizeFromQString(tag));
} else {
const QString decoded(codec->toUnicode(tag.toUtf8()));
output->assign(DataCommaSizeFromQString(decoded));
}
}
void TagReader::ParseFMPSFrame(const QString& name, const QString& value,
pb::tagreader::SongMetadata* song) const {
qLog(Debug) << "Parsing FMPSFrame" << name << ", " << value;
FMPSParser parser;
if (!parser.Parse(value) || parser.is_empty()) return;
QVariant var;
if (name == "FMPS_Rating") {
var = parser.result()[0][0];
if (var.type() == QVariant::Double) {
song->set_rating(var.toDouble());
}
} else if (name == "FMPS_Rating_User") {
// Take a user rating only if there's no rating already set
if (song->rating() == -1 && parser.result()[0].count() >= 2) {
var = parser.result()[0][1];
if (var.type() == QVariant::Double) {
song->set_rating(var.toDouble());
}
}
} else if (name == "FMPS_PlayCount") {
var = parser.result()[0][0];
if (var.type() == QVariant::Double) {
song->set_playcount(var.toDouble());
}
} else if (name == "FMPS_PlayCount_User") {
// Take a user playcount only if there's no playcount already set
if (song->playcount() == 0 && parser.result()[0].count() >= 2) {
var = parser.result()[0][1];
if (var.type() == QVariant::Double) {
song->set_playcount(var.toDouble());
}
}
} else if (name == "FMPS_Rating_Amarok_Score") {
var = parser.result()[0][0];
if (var.type() == QVariant::Double) {
song->set_score(var.toFloat() * 100);
}
}
}
void TagReader::ParseOggTag(const TagLib::Ogg::FieldListMap& map,
const QTextCodec* codec, QString* disc,
QString* compilation,
pb::tagreader::SongMetadata* song) const {
if (!map["COMPOSER"].isEmpty())
Decode(map["COMPOSER"].front(), codec, song->mutable_composer());
if (!map["PERFORMER"].isEmpty())
Decode(map["PERFORMER"].front(), codec, song->mutable_performer());
if (!map["CONTENT GROUP"].isEmpty())
Decode(map["CONTENT GROUP"].front(), codec, song->mutable_grouping());
if (!map["ALBUMARTIST"].isEmpty()) {
Decode(map["ALBUMARTIST"].front(), codec, song->mutable_albumartist());
} else if (!map["ALBUM ARTIST"].isEmpty()) {
Decode(map["ALBUM ARTIST"].front(), codec, song->mutable_albumartist());
}
if (!map["BPM"].isEmpty())
song->set_bpm(TStringToQString(map["BPM"].front()).trimmed().toFloat());
if (!map["DISCNUMBER"].isEmpty())
*disc = TStringToQString(map["DISCNUMBER"].front()).trimmed();
if (!map["COMPILATION"].isEmpty())
*compilation = TStringToQString(map["COMPILATION"].front()).trimmed();
if (!map["COVERART"].isEmpty()) song->set_art_automatic(kEmbeddedCover);
if (!map["METADATA_BLOCK_PICTURE"].isEmpty())
song->set_art_automatic(kEmbeddedCover);
if (!map["FMPS_RATING"].isEmpty() && song->rating() <= 0)
song->set_rating(
TStringToQString(map["FMPS_RATING"].front()).trimmed().toFloat());
if (!map["FMPS_PLAYCOUNT"].isEmpty() && song->playcount() <= 0)
song->set_playcount(
TStringToQString(map["FMPS_PLAYCOUNT"].front()).trimmed().toFloat());
if (!map["FMPS_RATING_AMAROK_SCORE"].isEmpty() && song->score() <= 0)
song->set_score(TStringToQString(map["FMPS_RATING_AMAROK_SCORE"].front())
.trimmed()
.toFloat() *
100);
}
void TagReader::SetVorbisComments(
TagLib::Ogg::XiphComment* vorbis_comments,
const pb::tagreader::SongMetadata& song) const {
vorbis_comments->addField("COMPOSER",
StdStringToTaglibString(song.composer()), true);
vorbis_comments->addField("PERFORMER",
StdStringToTaglibString(song.performer()), true);
vorbis_comments->addField("CONTENT GROUP",
StdStringToTaglibString(song.grouping()), true);
vorbis_comments->addField(
"BPM", QStringToTaglibString(
song.bpm() <= 0 - 1 ? QString() : QString::number(song.bpm())),
true);
vorbis_comments->addField(
"DISCNUMBER",
QStringToTaglibString(
song.disc() <= 0 - 1 ? QString() : QString::number(song.disc())),
true);
vorbis_comments->addField(
"COMPILATION", StdStringToTaglibString(song.compilation() ? "1" : "0"),
true);
vorbis_comments->addField("ALBUM ARTIST",
StdStringToTaglibString(song.albumartist()), true);
}
void TagReader::SetFMPSStatisticsVorbisComments(
TagLib::Ogg::XiphComment* vorbis_comments,
const pb::tagreader::SongMetadata& song) const {
vorbis_comments->addField(
"FMPS_PLAYCOUNT",
QStringToTaglibString(QString::number(song.playcount())));
vorbis_comments->addField(
"FMPS_RATING_AMAROK_SCORE",
QStringToTaglibString(QString::number(song.score() / 100.0)));
}
void TagReader::SetFMPSRatingVorbisComments(
TagLib::Ogg::XiphComment* vorbis_comments,
const pb::tagreader::SongMetadata& song) const {
vorbis_comments->addField(
"FMPS_RATING", QStringToTaglibString(QString::number(song.rating())));
}
pb::tagreader::SongMetadata_Type TagReader::GuessFileType(
TagLib::FileRef* fileref) const {
#ifdef TAGLIB_WITH_ASF
if (dynamic_cast<TagLib::ASF::File*>(fileref->file()))
return pb::tagreader::SongMetadata_Type_ASF;
#endif
if (dynamic_cast<TagLib::FLAC::File*>(fileref->file()))
return pb::tagreader::SongMetadata_Type_FLAC;
#ifdef TAGLIB_WITH_MP4
if (dynamic_cast<TagLib::MP4::File*>(fileref->file()))
return pb::tagreader::SongMetadata_Type_MP4;
#endif
if (dynamic_cast<TagLib::MPC::File*>(fileref->file()))
return pb::tagreader::SongMetadata_Type_MPC;
if (dynamic_cast<TagLib::MPEG::File*>(fileref->file()))
return pb::tagreader::SongMetadata_Type_MPEG;
if (dynamic_cast<TagLib::Ogg::FLAC::File*>(fileref->file()))
return pb::tagreader::SongMetadata_Type_OGGFLAC;
if (dynamic_cast<TagLib::Ogg::Speex::File*>(fileref->file()))
return pb::tagreader::SongMetadata_Type_OGGSPEEX;
if (dynamic_cast<TagLib::Ogg::Vorbis::File*>(fileref->file()))
return pb::tagreader::SongMetadata_Type_OGGVORBIS;
#ifdef TAGLIB_HAS_OPUS
if (dynamic_cast<TagLib::Ogg::Opus::File*>(fileref->file()))
return pb::tagreader::SongMetadata_Type_OGGOPUS;
#endif
if (dynamic_cast<TagLib::RIFF::AIFF::File*>(fileref->file()))
return pb::tagreader::SongMetadata_Type_AIFF;
if (dynamic_cast<TagLib::RIFF::WAV::File*>(fileref->file()))
return pb::tagreader::SongMetadata_Type_WAV;
if (dynamic_cast<TagLib::TrueAudio::File*>(fileref->file()))
return pb::tagreader::SongMetadata_Type_TRUEAUDIO;
return pb::tagreader::SongMetadata_Type_UNKNOWN;
}
bool TagReader::SaveFile(const QString& filename,
const pb::tagreader::SongMetadata& song) const {
if (filename.isNull()) return false;
qLog(Debug) << "Saving tags to" << filename;
std::unique_ptr<TagLib::FileRef> fileref(factory_->GetFileRef(filename));
if (!fileref || fileref->isNull()) // The file probably doesn't exist
return false;
fileref->tag()->setTitle(StdStringToTaglibString(song.title()));
fileref->tag()->setArtist(StdStringToTaglibString(song.artist())); // TPE1
fileref->tag()->setAlbum(StdStringToTaglibString(song.album()));
fileref->tag()->setGenre(StdStringToTaglibString(song.genre()));
fileref->tag()->setComment(StdStringToTaglibString(song.comment()));
fileref->tag()->setYear(song.year());
fileref->tag()->setTrack(song.track());
if (TagLib::MPEG::File* file =
dynamic_cast<TagLib::MPEG::File*>(fileref->file())) {
TagLib::ID3v2::Tag* tag = file->ID3v2Tag(true);
SetTextFrame(
"TPOS", song.disc() <= 0 - 1 ? QString() : QString::number(song.disc()),
tag);
SetTextFrame("TBPM",
song.bpm() <= 0 - 1 ? QString() : QString::number(song.bpm()),
tag);
SetTextFrame("TCOM", song.composer(), tag);
SetTextFrame("TIT1", song.grouping(), tag);
SetTextFrame("TOPE", song.performer(), tag);
SetTextFrame("USLT", song.lyrics(), tag);
// Skip TPE1 (which is the artist) here because we already set it
SetTextFrame("TPE2", song.albumartist(), tag);
SetTextFrame("TCMP", std::string(song.compilation() ? "1" : "0"), tag);
} else if (TagLib::FLAC::File* file =
dynamic_cast<TagLib::FLAC::File*>(fileref->file())) {
TagLib::Ogg::XiphComment* tag = file->xiphComment();
SetVorbisComments(tag, song);
} else if (TagLib::MP4::File* file =
dynamic_cast<TagLib::MP4::File*>(fileref->file())) {
TagLib::MP4::Tag* tag = file->tag();
tag->itemListMap()["disk"] =
TagLib::MP4::Item(song.disc() <= 0 - 1 ? 0 : song.disc(), 0);
tag->itemListMap()["tmpo"] = TagLib::StringList(
song.bpm() <= 0 - 1 ? "0" : TagLib::String::number(song.bpm()));
tag->itemListMap()["\251wrt"] = TagLib::StringList(song.composer());
tag->itemListMap()["\251grp"] = TagLib::StringList(song.grouping());
tag->itemListMap()["aART"] = TagLib::StringList(song.albumartist());
tag->itemListMap()["cpil"] =
TagLib::StringList(song.compilation() ? "1" : "0");
}
// Handle all the files which have VorbisComments (Ogg, OPUS, ...) in the same
// way;
// apart, so we keep specific behavior for some formats by adding another
// "else if" block above.
if (TagLib::Ogg::XiphComment* tag =
dynamic_cast<TagLib::Ogg::XiphComment*>(fileref->file()->tag())) {
SetVorbisComments(tag, song);
}
bool ret = fileref->save();
#ifdef Q_OS_LINUX
if (ret) {
// Linux: inotify doesn't seem to notice the change to the file unless we
// change the timestamps as well. (this is what touch does)
utimensat(0, QFile::encodeName(filename).constData(), nullptr, 0);
}
#endif // Q_OS_LINUX
return ret;
}
bool TagReader::SaveSongStatisticsToFile(
const QString& filename, const pb::tagreader::SongMetadata& song) const {
if (filename.isNull()) return false;
qLog(Debug) << "Saving song statistics tags to" << filename;
std::unique_ptr<TagLib::FileRef> fileref(factory_->GetFileRef(filename));
if (!fileref || fileref->isNull()) // The file probably doesn't exist
return false;
if (TagLib::MPEG::File* file =
dynamic_cast<TagLib::MPEG::File*>(fileref->file())) {
TagLib::ID3v2::Tag* tag = file->ID3v2Tag(true);
// Save as FMPS
SetUserTextFrame("FMPS_PlayCount", QString::number(song.playcount()), tag);
SetUserTextFrame("FMPS_Rating_Amarok_Score",
QString::number(song.score() / 100.0), tag);
// Also save as POPM
TagLib::ID3v2::PopularimeterFrame* frame = GetPOPMFrameFromTag(tag);
frame->setCounter(song.playcount());
} else if (TagLib::FLAC::File* file =
dynamic_cast<TagLib::FLAC::File*>(fileref->file())) {
TagLib::Ogg::XiphComment* vorbis_comments = file->xiphComment(true);
SetFMPSStatisticsVorbisComments(vorbis_comments, song);
} else if (TagLib::Ogg::XiphComment* tag =
dynamic_cast<TagLib::Ogg::XiphComment*>(
fileref->file()->tag())) {
SetFMPSStatisticsVorbisComments(tag, song);
}
#ifdef TAGLIB_WITH_ASF
else if (TagLib::ASF::File* file =
dynamic_cast<TagLib::ASF::File*>(fileref->file())) {
TagLib::ASF::Tag* tag = file->tag();
tag->addAttribute("FMPS/Playcount", NumberToASFAttribute(song.playcount()));
tag->addAttribute("FMPS/Rating_Amarok_Score",
NumberToASFAttribute(song.score() / 100.0));
}
#endif
else if (TagLib::MP4::File* file =
dynamic_cast<TagLib::MP4::File*>(fileref->file())) {
TagLib::MP4::Tag* tag = file->tag();
tag->itemListMap()[kMP4_FMPS_Score_ID] = TagLib::StringList(
QStringToTaglibString(QString::number(song.score() / 100.0)));
tag->itemListMap()[kMP4_FMPS_Playcount_ID] =
TagLib::StringList(TagLib::String::number(song.playcount()));
} else {
// Nothing to save: stop now
return true;
}
bool ret = fileref->save();
#ifdef Q_OS_LINUX
if (ret) {
// Linux: inotify doesn't seem to notice the change to the file unless we
// change the timestamps as well. (this is what touch does)
utimensat(0, QFile::encodeName(filename).constData(), nullptr, 0);
}
#endif // Q_OS_LINUX
return ret;
}
bool TagReader::SaveSongRatingToFile(
const QString& filename, const pb::tagreader::SongMetadata& song) const {
if (filename.isNull()) return false;
qLog(Debug) << "Saving song rating tags to" << filename;
if (song.rating() < 0) {
// The FMPS spec says unrated == "tag not present". For us, no rating
// results in rating being -1, so don't write anything in that case.
// Actually, we should also remove tag set in this case, but in
// Clementine it is not possible to unset rating i.e. make a song "unrated".
qLog(Debug) << "Unrated: do nothing";
return true;
}
std::unique_ptr<TagLib::FileRef> fileref(factory_->GetFileRef(filename));
if (!fileref || fileref->isNull()) // The file probably doesn't exist
return false;
if (TagLib::MPEG::File* file =
dynamic_cast<TagLib::MPEG::File*>(fileref->file())) {
TagLib::ID3v2::Tag* tag = file->ID3v2Tag(true);
// Save as FMPS
SetUserTextFrame("FMPS_Rating", QString::number(song.rating()), tag);
// Also save as POPM
TagLib::ID3v2::PopularimeterFrame* frame = GetPOPMFrameFromTag(tag);
frame->setRating(ConvertToPOPMRating(song.rating()));
} else if (TagLib::FLAC::File* file =
dynamic_cast<TagLib::FLAC::File*>(fileref->file())) {
TagLib::Ogg::XiphComment* vorbis_comments = file->xiphComment(true);
SetFMPSRatingVorbisComments(vorbis_comments, song);
} else if (TagLib::Ogg::XiphComment* tag =
dynamic_cast<TagLib::Ogg::XiphComment*>(
fileref->file()->tag())) {
SetFMPSRatingVorbisComments(tag, song);
}
#ifdef TAGLIB_WITH_ASF
else if (TagLib::ASF::File* file =
dynamic_cast<TagLib::ASF::File*>(fileref->file())) {
TagLib::ASF::Tag* tag = file->tag();
tag->addAttribute("FMPS/Rating", NumberToASFAttribute(song.rating()));
}
#endif
else if (TagLib::MP4::File* file =
dynamic_cast<TagLib::MP4::File*>(fileref->file())) {
TagLib::MP4::Tag* tag = file->tag();
tag->itemListMap()[kMP4_FMPS_Rating_ID] = TagLib::StringList(
QStringToTaglibString(QString::number(song.rating())));
} else {
// Nothing to save: stop now
return true;
}
bool ret = fileref->save();
#ifdef Q_OS_LINUX
if (ret) {
// Linux: inotify doesn't seem to notice the change to the file unless we
// change the timestamps as well. (this is what touch does)
utimensat(0, QFile::encodeName(filename).constData(), nullptr, 0);
}
#endif // Q_OS_LINUX
return ret;
}
void TagReader::SetUserTextFrame(const QString& description,
const QString& value,
TagLib::ID3v2::Tag* tag) const {
const QByteArray descr_utf8(description.toUtf8());
const QByteArray value_utf8(value.toUtf8());
qLog(Debug) << "Setting FMPSFrame:" << description << ", " << value;
SetUserTextFrame(std::string(descr_utf8.constData(), descr_utf8.length()),
std::string(value_utf8.constData(), value_utf8.length()),
tag);
}
void TagReader::SetUserTextFrame(const std::string& description,
const std::string& value,
TagLib::ID3v2::Tag* tag) const {
const TagLib::String t_description = StdStringToTaglibString(description);
// Remove the frame if it already exists
TagLib::ID3v2::UserTextIdentificationFrame* frame =
TagLib::ID3v2::UserTextIdentificationFrame::find(tag, t_description);
if (frame) {
tag->removeFrame(frame);
}
// Create and add a new frame
frame = new TagLib::ID3v2::UserTextIdentificationFrame(TagLib::String::UTF8);
frame->setDescription(t_description);
frame->setText(StdStringToTaglibString(value));
tag->addFrame(frame);
}
void TagReader::SetTextFrame(const char* id, const QString& value,
TagLib::ID3v2::Tag* tag) const {
const QByteArray utf8(value.toUtf8());
SetTextFrame(id, std::string(utf8.constData(), utf8.length()), tag);
}
void TagReader::SetTextFrame(const char* id, const std::string& value,
TagLib::ID3v2::Tag* tag) const {
TagLib::ByteVector id_vector(id);
// Remove the frame if it already exists
while (tag->frameListMap().contains(id_vector) &&
tag->frameListMap()[id_vector].size() != 0) {
tag->removeFrame(tag->frameListMap()[id_vector].front());
}
// Create and add a new frame
TagLib::ID3v2::TextIdentificationFrame* frame =
new TagLib::ID3v2::TextIdentificationFrame(id_vector,
TagLib::String::UTF8);
frame->setText(StdStringToTaglibString(value));
tag->addFrame(frame);
}
bool TagReader::IsMediaFile(const QString& filename) const {
qLog(Debug) << "Checking for valid file" << filename;
std::unique_ptr<TagLib::FileRef> fileref(factory_->GetFileRef(filename));
return !fileref->isNull() && fileref->tag();
}
QByteArray TagReader::LoadEmbeddedArt(const QString& filename) const {
if (filename.isEmpty()) return QByteArray();
qLog(Debug) << "Loading art from" << filename;
#ifdef Q_OS_WIN32
TagLib::FileRef ref(filename.toStdWString().c_str());
#else
TagLib::FileRef ref(QFile::encodeName(filename).constData());
#endif
if (ref.isNull() || !ref.file()) return QByteArray();
// MP3
TagLib::MPEG::File* file = dynamic_cast<TagLib::MPEG::File*>(ref.file());
if (file && file->ID3v2Tag()) {
TagLib::ID3v2::FrameList apic_frames =
file->ID3v2Tag()->frameListMap()["APIC"];
if (apic_frames.isEmpty()) return QByteArray();
TagLib::ID3v2::AttachedPictureFrame* pic =
static_cast<TagLib::ID3v2::AttachedPictureFrame*>(apic_frames.front());
return QByteArray((const char*)pic->picture().data(),
pic->picture().size());
}
// Ogg vorbis/speex
TagLib::Ogg::XiphComment* xiph_comment =
dynamic_cast<TagLib::Ogg::XiphComment*>(ref.file()->tag());
if (xiph_comment) {
TagLib::Ogg::FieldListMap map = xiph_comment->fieldListMap();
// Other than the below mentioned non-standard COVERART,
// METADATA_BLOCK_PICTURE
// is the proposed tag for cover pictures.
// (see http://wiki.xiph.org/VorbisComment#METADATA_BLOCK_PICTURE)
if (map.contains("METADATA_BLOCK_PICTURE")) {
TagLib::StringList pict_list = map["METADATA_BLOCK_PICTURE"];
for (std::list<TagLib::String>::iterator it = pict_list.begin();
it != pict_list.end(); ++it) {
QByteArray data(QByteArray::fromBase64(it->toCString()));
TagLib::ByteVector tdata(data.data(), data.size());
TagLib::FLAC::Picture p(tdata);
if (p.type() == TagLib::FLAC::Picture::FrontCover)
return QByteArray(p.data().data(), p.data().size());
}
// If there was no specific front cover, just take the first picture
QByteArray data(QByteArray::fromBase64(
map["METADATA_BLOCK_PICTURE"].front().toCString()));
TagLib::ByteVector tdata(data.data(), data.size());
TagLib::FLAC::Picture p(tdata);
return QByteArray(p.data().data(), p.data().size());
}
// Ogg lacks a definitive standard for embedding cover art, but it seems
// b64 encoding a field called COVERART is the general convention
if (!map.contains("COVERART")) return QByteArray();
return QByteArray::fromBase64(map["COVERART"].toString().toCString());
}
#ifdef TAGLIB_HAS_FLAC_PICTURELIST
// Flac
TagLib::FLAC::File* flac_file = dynamic_cast<TagLib::FLAC::File*>(ref.file());
if (flac_file && flac_file->xiphComment()) {
TagLib::List<TagLib::FLAC::Picture*> pics = flac_file->pictureList();
if (!pics.isEmpty()) {
// Use the first picture in the file - this could be made cleverer and
// pick the front cover if it's present.
std::list<TagLib::FLAC::Picture*>::iterator it = pics.begin();
TagLib::FLAC::Picture* picture = *it;
return QByteArray(picture->data().data(), picture->data().size());
}
}
#endif
// MP4/AAC
TagLib::MP4::File* aac_file = dynamic_cast<TagLib::MP4::File*>(ref.file());
if (aac_file) {
TagLib::MP4::Tag* tag = aac_file->tag();
const TagLib::MP4::ItemListMap& items = tag->itemListMap();
TagLib::MP4::ItemListMap::ConstIterator it = items.find("covr");
if (it != items.end()) {
const TagLib::MP4::CoverArtList& art_list = it->second.toCoverArtList();
if (!art_list.isEmpty()) {
// Just take the first one for now
const TagLib::MP4::CoverArt& art = art_list.front();
return QByteArray(art.data().data(), art.data().size());
}
}
}
return QByteArray();
}
#ifdef HAVE_GOOGLE_DRIVE
bool TagReader::ReadCloudFile(const QUrl& download_url, const QString& title,
int size, const QString& mime_type,
const QString& authorisation_header,
pb::tagreader::SongMetadata* song) const {
qLog(Debug) << "Loading tags from" << title;
std::unique_ptr<CloudStream> stream(new CloudStream(
download_url, title, size, authorisation_header, network_));
stream->Precache();
std::unique_ptr<TagLib::File> tag;
if (mime_type == "audio/mpeg" && title.endsWith(".mp3")) {
tag.reset(new TagLib::MPEG::File(stream.get(),
TagLib::ID3v2::FrameFactory::instance(),
TagLib::AudioProperties::Accurate));
} else if (mime_type == "audio/mp4" ||
(mime_type == "audio/mpeg" && title.endsWith(".m4a"))) {
tag.reset(new TagLib::MP4::File(stream.get(), true,
TagLib::AudioProperties::Accurate));
}
#ifdef TAGLIB_HAS_OPUS
else if ((mime_type == "application/opus" || mime_type == "audio/opus" ||
mime_type == "application/ogg" || mime_type == "audio/ogg") &&
title.endsWith(".opus")) {
tag.reset(new TagLib::Ogg::Opus::File(stream.get(), true,
TagLib::AudioProperties::Accurate));
}
#endif
else if (mime_type == "application/ogg" || mime_type == "audio/ogg") {
tag.reset(new TagLib::Ogg::Vorbis::File(stream.get(), true,
TagLib::AudioProperties::Accurate));
} else if (mime_type == "application/x-flac" || mime_type == "audio/flac" ||
mime_type == "audio/x-flac") {
tag.reset(new TagLib::FLAC::File(stream.get(),
TagLib::ID3v2::FrameFactory::instance(),
true, TagLib::AudioProperties::Accurate));
} else if (mime_type == "audio/x-ms-wma") {
tag.reset(new TagLib::ASF::File(stream.get(), true,
TagLib::AudioProperties::Accurate));
} else {
qLog(Debug) << "Unknown mime type for tagging:" << mime_type;
return false;
}
if (stream->num_requests() > 2) {
// Warn if pre-caching failed.
qLog(Warning) << "Total requests for file:" << title
<< stream->num_requests() << stream->cached_bytes();
}
if (tag->tag() && !tag->tag()->isEmpty()) {
song->set_title(tag->tag()->title().toCString(true));
song->set_artist(tag->tag()->artist().toCString(true));
song->set_album(tag->tag()->album().toCString(true));
song->set_filesize(size);
if (tag->tag()->track() != 0) {
song->set_track(tag->tag()->track());
}
if (tag->tag()->year() != 0) {
song->set_year(tag->tag()->year());
}
song->set_type(pb::tagreader::SongMetadata_Type_STREAM);
if (tag->audioProperties()) {
song->set_length_nanosec(tag->audioProperties()->length() * kNsecPerSec);
}
return true;
}
return false;
}
#endif // HAVE_GOOGLE_DRIVE
TagLib::ID3v2::PopularimeterFrame* TagReader::GetPOPMFrameFromTag(
TagLib::ID3v2::Tag* tag) {
TagLib::ID3v2::PopularimeterFrame* frame = nullptr;
const TagLib::ID3v2::FrameListMap& map = tag->frameListMap();
if (!map["POPM"].isEmpty()) {
frame =
dynamic_cast<TagLib::ID3v2::PopularimeterFrame*>(map["POPM"].front());
}
if (!frame) {
frame = new TagLib::ID3v2::PopularimeterFrame();
tag->addFrame(frame);
}
return frame;
}
float TagReader::ConvertPOPMRating(const int POPM_rating) {
if (POPM_rating < 0x01) {
return 0.0;
} else if (POPM_rating < 0x40) {
return 0.20; // 1 star
} else if (POPM_rating < 0x80) {
return 0.40; // 2 stars
} else if (POPM_rating < 0xC0) {
return 0.60; // 3 stars
} else if (POPM_rating < 0xFC) { // some players store 5 stars as 0xFC
return 0.80; // 4 stars
}
return 1.0; // 5 stars
}
int TagReader::ConvertToPOPMRating(const float rating) {
if (rating < 0.20) {
return 0x00;
} else if (rating < 0.40) {
return 0x01;
} else if (rating < 0.60) {
return 0x40;
} else if (rating < 0.80) {
return 0x80;
} else if (rating < 1.0) {
return 0xC0;
}
return 0xFF;
}
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