QStringList
MetaBundle::genreList() //static
{
QStringList list;
TagLib::StringList genres = TagLib::ID3v1::genreList();
for( TagLib::StringList::ConstIterator it = genres.begin(), end = genres.end(); it != end; ++it )
list += TStringToQString( (*it) );
list.sort();
return list;
}
/*!
* \copydoc MetaIO::read()
*/
MusicMetadata *MetaIOID3::read(const QString &filename)
{
if (!OpenFile(filename))
return nullptr;
TagLib::ID3v2::Tag *tag = GetID3v2Tag(true); // Create tag if none are found
// if there is no ID3v2 tag, try to read the ID3v1 tag and copy it to
// the ID3v2 tag structure
if (tag->isEmpty())
{
TagLib::ID3v1::Tag *tag_v1 = GetID3v1Tag();
if (!tag_v1)
return nullptr;
if (!tag_v1->isEmpty())
{
tag->setTitle(tag_v1->title());
tag->setArtist(tag_v1->artist());
tag->setAlbum(tag_v1->album());
tag->setTrack(tag_v1->track());
tag->setYear(tag_v1->year());
tag->setGenre(tag_v1->genre());
}
}
MusicMetadata *metadata = new MusicMetadata(filename);
ReadGenericMetadata(tag, metadata);
bool compilation = false;
// Compilation Artist (TPE4 Remix) or fallback to (TPE2 Band)
// N.B. The existance of a either frame is NOT an indication that this
// is a compilation, but if it is then one of them will probably hold
// the compilation artist.
TextIdentificationFrame *tpeframe = nullptr;
TagLib::ID3v2::FrameList tpelist = tag->frameListMap()["TPE4"];
if (tpelist.isEmpty() || tpelist.front()->toString().isEmpty())
tpelist = tag->frameListMap()["TPE2"];
if (!tpelist.isEmpty())
tpeframe = (TextIdentificationFrame *)tpelist.front();
if (tpeframe && !tpeframe->toString().isEmpty())
{
QString compilation_artist = TStringToQString(tpeframe->toString())
.trimmed();
metadata->setCompilationArtist(compilation_artist);
}
// Rating and playcount, stored in POPM frame
PopularimeterFrame *popm = findPOPM(tag, ""); // Global (all apps) tag
// If no 'global' tag exists, look for the MythTV specific one
if (!popm)
{
popm = findPOPM(tag, email);
}
// Fallback to using any POPM tag we can find
if (!popm)
{
if (!tag->frameListMap()["POPM"].isEmpty())
popm = dynamic_cast<PopularimeterFrame *>
(tag->frameListMap()["POPM"].front());
}
if (popm)
{
int rating = popm->rating();
rating = lroundf(static_cast<float>(rating) / 255.0f * 10.0f);
metadata->setRating(rating);
metadata->setPlaycount(popm->counter());
}
// Look for MusicBrainz Album+Artist ID in TXXX Frame
UserTextIdentificationFrame *musicbrainz = find(tag,
"MusicBrainz Album Artist Id");
if (musicbrainz)
{
// If the MusicBrainz ID is the special "Various Artists" ID
// then compilation is TRUE
if (!compilation && !musicbrainz->fieldList().isEmpty())
{
TagLib::StringList l = musicbrainz->fieldList();
for (TagLib::StringList::ConstIterator it = l.begin(); it != l.end(); it++)
{
QString ID = TStringToQString((*it));
if (ID == MYTH_MUSICBRAINZ_ALBUMARTIST_UUID)
{
compilation = true;
break;
}
}
}
}
// TLEN - Ignored intentionally, some encoders write bad values
// e.g. Lame under certain circumstances will always write a length of
// 27 hours
// Length
if (!tag->frameListMap()["TLEN"].isEmpty())
{
int length = tag->frameListMap()["TLEN"].front()->toString().toInt();
LOG(VB_FILE, LOG_DEBUG,
QString("MetaIOID3::read: Length for '%1' from tag is '%2'\n").arg(filename).arg(length));
}
metadata->setCompilation(compilation);
metadata->setLength(getTrackLength(m_file));
// The number of tracks on the album, if supplied
if (!tag->frameListMap()["TRCK"].isEmpty())
{
QString trackFrame = TStringToQString(
tag->frameListMap()["TRCK"].front()->toString())
.trimmed();
int trackCount = trackFrame.section('/', -1).toInt();
if (trackCount > 0)
metadata->setTrackCount(trackCount);
}
LOG(VB_FILE, LOG_DEBUG,
QString("MetaIOID3::read: Length for '%1' from properties is '%2'\n").arg(filename).arg(metadata->Length()));
// Look for MythTVLastPlayed in TXXX Frame
UserTextIdentificationFrame *lastplayed = find(tag, "MythTVLastPlayed");
if (lastplayed)
{
QString lastPlayStr = TStringToQString(lastplayed->toString());
metadata->setLastPlay(QDateTime::fromString(lastPlayStr, Qt::ISODate));
}
// Part of a set
if (!tag->frameListMap()["TPOS"].isEmpty())
{
QString pos = TStringToQString(
tag->frameListMap()["TPOS"].front()->toString()).trimmed();
int discNumber = pos.section('/', 0, 0).toInt();
int discCount = pos.section('/', -1).toInt();
if (discNumber > 0)
metadata->setDiscNumber(discNumber);
if (discCount > 0)
metadata->setDiscCount(discCount);
}
return metadata;
}