C++ TrackPtr::length方法代码示例

StatSyncing::ScrobblingService::ScrobbleError
ScrobblerAdapter::scrobble( const Meta::TrackPtr &track, double playedFraction,
                            const QDateTime &time )
{
    Q_ASSERT( track );
    if( isToBeSkipped( track ) )
    {
        debug() << "scrobble(): refusing track" << track->prettyUrl()
                << "- contains label:" << m_config->filteredLabel() << "which is marked to be skipped";
        return SkippedByUser;
    }
    if( track->length() * qMin( 1.0, playedFraction ) < 30 * 1000 )
    {
        debug() << "scrobble(): refusing track" << track->prettyUrl() << "- played time ("
                << track->length() / 1000 << "*" << playedFraction << "s) shorter than 30 s";
        return TooShort;
    }
    int playcount = qRound( playedFraction );
    if( playcount <= 0 )
    {
        debug() << "scrobble(): refusing track" << track->prettyUrl() << "- played "
                << "fraction (" << playedFraction * 100 << "%) less than 50 %";
        return TooShort;
    }

    lastfm::MutableTrack lfmTrack;
    copyTrackMetadata( lfmTrack, track );
    // since liblastfm >= 1.0.3 it interprets following extra property:
    lfmTrack.setExtra( "playCount", QString::number( playcount ) );
    lfmTrack.setTimeStamp( time.isValid() ? time : QDateTime::currentDateTime() );
    debug() << "scrobble: " << lfmTrack.artist() << "-" << lfmTrack.album() << "-"
            << lfmTrack.title() << "source:" << lfmTrack.source() << "duration:"
            << lfmTrack.duration();
    m_scrobbler.cache( lfmTrack );
    m_scrobbler.submit(); // since liblastfm 1.0.7, submit() is not called automatically upon cache()
    switch( lfmTrack.scrobbleStatus() )
    {
        case lastfm::Track::Cached:
        case lastfm::Track::Submitted:
            return NoError;
        case lastfm::Track::Null:
        case lastfm::Track::Error:
            break;
    }
    return BadMetadata;
}

void
Amarok::OSD::show( Meta::TrackPtr track ) //slot
{
    setAlignment( static_cast<OSDWidget::Alignment>( AmarokConfig::osdAlignment() ) );
    setOffset( AmarokConfig::osdYOffset() );

    QString text;
    if( !track || track->playableUrl().isEmpty() )
    {
        text = i18n( "No track playing" );
        setRating( 0 ); // otherwise stars from last rating change are visible
    }
    else
    {
        setRating( track->rating() );
        text = track->prettyName();
        if( track->artist() && !track->artist()->prettyName().isEmpty() )
            text = track->artist()->prettyName() + " - " + text;
        if( track->album() && !track->album()->prettyName().isEmpty() )
            text += "\n (" + track->album()->prettyName() + ") ";
        else
            text += '\n';
        if( track->length() > 0 )
            text += Meta::msToPrettyTime( track->length() );
    }

    if( text.isEmpty() )
        text =  track->playableUrl().fileName();

    if( text.startsWith( "- " ) ) //When we only have a title tag, _something_ prepends a fucking hyphen. Remove that.
        text = text.mid( 2 );

    if( text.isEmpty() ) //still
        text = i18n("No information available for this track");

    QImage image;
    if( track && track->album() )
        image = The::svgHandler()->imageWithBorder( track->album(), 100, 5 ).toImage();

    OSDWidget::show( text, image );
}

void
ScrobblerAdapter::copyTrackMetadata( lastfm::MutableTrack &to, const Meta::TrackPtr &track )
{
    to.setTitle( track->name() );

    QString artistOrComposer;
    Meta::ComposerPtr composer = track->composer();
    if( m_config->scrobbleComposer() && composer )
        artistOrComposer = composer->name();
    Meta::ArtistPtr artist = track->artist();
    if( artistOrComposer.isEmpty() && artist )
        artistOrComposer = artist->name();
    to.setArtist( artistOrComposer );

    Meta::AlbumPtr album = track->album();
    Meta::ArtistPtr albumArtist;
    if( album )
    {
        to.setAlbum( album->name() );
        albumArtist = album->hasAlbumArtist() ? album->albumArtist() : Meta::ArtistPtr();
    }
    if( albumArtist )
        to.setAlbumArtist( albumArtist->name() );

    to.setDuration( track->length() / 1000 );
    if( track->trackNumber() >= 0 )
        to.setTrackNumber( track->trackNumber() );

    lastfm::Track::Source source = lastfm::Track::Player;
    if( track->type() == "stream/lastfm" )
        source = lastfm::Track::LastFmRadio;
    else if( track->type().startsWith( "stream" ) )
        source = lastfm::Track::NonPersonalisedBroadcast;
    else if( track->collection() && track->collection()->collectionId() != "localCollection" )
        source = lastfm::Track::MediaDevice;
    to.setSource( source );
}

QString TrackOrganizer::buildDestination(const QString& format, const Meta::TrackPtr& track) const
{
    // get hold of the shared pointers
    Meta::AlbumPtr album = track->album();
    Meta::ArtistPtr artist = track->artist();
    Meta::ComposerPtr composer = track->composer();
    Meta::ArtistPtr albumArtist = album ? album->albumArtist() : Meta::ArtistPtr();
    Meta::GenrePtr genre = track->genre();
    Meta::YearPtr year = track->year();

    bool isCompilation = album && album->isCompilation();

    QMap<QString, QString> args;
    QString strArtist = artist ? artist->name() : QString();
    QString strAlbumArtist = isCompilation ? i18n( "Various Artists" ) :
        ( albumArtist ? albumArtist->name() : strArtist );

    args["theartist"] = strArtist;
    args["thealbumartist"] = strAlbumArtist;

    if( m_postfixThe )
    {
        Amarok::manipulateThe( strArtist, true );
        Amarok::manipulateThe( strAlbumArtist, true );
    }

    if ( track->trackNumber() )
    {
        QString trackNum = QString("%1").arg( track->trackNumber(), 2, 10, QChar('0') );
        args["track"] = trackNum;
    }
    args["title"] = track->name();
    args["artist"] = strArtist;
    args["composer"] = composer ? composer->name() : QString();
    // if year == 0 then we don't want include it
    QString strYear = year ? year->name() : QString();
    args["year"] = strYear.localeAwareCompare( "0" ) == 0 ? QString() : strYear;
    args["album"] = track->album() ? track->album()->name() : QString();
    args["albumartist"] = strAlbumArtist;
    args["comment"] = track->comment();
    args["genre"] = genre ? genre->name() : QString();
    if( m_targetFileExtension.isEmpty() )
        args["filetype"] = track->type();
    else
        args["filetype"] = m_targetFileExtension;
    QString strFolder = QFileInfo( track->playableUrl().toLocalFile() ).path();
    strFolder = strFolder.mid( commonPrefixLength( m_folderPrefix, strFolder ) );
    args["folder"] = strFolder;
    args["initial"] = strAlbumArtist.mid( 0, 1 ).toUpper(); //artists starting with The are already handled above
    if( track->discNumber() )
        args["discnumber"] = QString::number( track->discNumber() );
    args["collectionroot"] = m_folderPrefix;

    // some additional properties not supported by organize dialog.
    args["rating"] = track->statistics()->rating();
    args["filesize"] = track->filesize();
    args["length"] = track->length() / 1000;

    // Fill up default empty values for StringX formater
    // TODO make this values changeable by user
    args["default_album"]           = i18n( "Unknown album" );
    args["default_albumartist"]     = i18n( "Unknown artist" );
    args["default_artist"]          = args["albumartist"];
    args["default_thealbumartist"]  = args["albumartist"];
    args["default_theartist"]       = args["albumartist"];
    args["default_comment"]         = i18n( "No comments" );
    args["default_composer"]        = i18n( "Unknown composer" );
    args["default_discnumber"]      = i18n( "Unknown disc number" );
    args["default_genre"]           = i18n( "Unknown genre" );
    args["default_title"]           = i18n( "Unknown title" );
    args["default_year"]            = i18n( "Unknown year" );

    foreach( const QString &key, args.keys() )
        if( key != "collectionroot" && key != "folder" )
            args[key] = args[key].replace( '/', '-' );

    Amarok::QStringx formatx( format );
    QString result = formatx.namedOptArgs( args );
    return cleanPath( result );
}

QVariant Meta::valueForField( qint64 field, Meta::TrackPtr track )
{
    if( !track )
        return QVariant();

    switch( field )
    {
    case 0:
    {
        // that is the simple search for MetaQueryWidget
        QSet<QString> allInfos;
        allInfos += track->playableUrl().path()
            += track->name()
            += track->comment();
        if( track->artist() )
            allInfos += track->artist()->name();
        if( track->album() )
            allInfos += track->album()->name();
        if( track->genre() )
            allInfos += track->genre()->name();

        return QVariant( allInfos.toList() );
    }
    case Meta::valUrl:         return track->playableUrl().path();
    case Meta::valTitle:       return track->name();
    case Meta::valArtist:      return track->artist() ?
                               QVariant(track->artist()->name()) : QVariant();
    case Meta::valAlbum:       return track->album() ?
                               QVariant(track->album()->name()) : QVariant();
    case Meta::valGenre:       return track->genre() ?
                               QVariant(track->genre()->name()) : QVariant();
    case Meta::valComposer:    return track->composer() ?
                               QVariant(track->composer()->name()) : QVariant();
    case Meta::valYear:        return track->year() ?
                               QVariant(track->year()->name().toInt()) : QVariant();
    case Meta::valComment:     return track->comment();
    case Meta::valTrackNr:     return track->trackNumber();
    case Meta::valDiscNr:      return track->discNumber();
    case Meta::valBpm:         return track->bpm();
    case Meta::valLength:      return track->length();
    case Meta::valBitrate:     return track->bitrate();
    case Meta::valSamplerate:  return track->sampleRate();
    case Meta::valFilesize:    return track->filesize();
    case Meta::valFormat:      return int(Amarok::FileTypeSupport::fileType(track->type()));

    case Meta::valCreateDate:  return track->createDate();
    case Meta::valScore:       return track->statistics()->score();
    case Meta::valRating:      return track->statistics()->rating();
    case Meta::valFirstPlayed: return track->statistics()->firstPlayed();
    case Meta::valLastPlayed:  return track->statistics()->lastPlayed();
    case Meta::valPlaycount:   return track->statistics()->playCount();
    case Meta::valUniqueId:    return track->uidUrl();

    // todo
    case Meta::valTrackGain:   return "track gain";
    case Meta::valTrackGainPeak:   return "track gain peak";
    case Meta::valAlbumGain:   return "album gain";
    case Meta::valAlbumGainPeak:   return "album gain peak";

    case Meta::valAlbumArtist: return (track->album() && track->album()->albumArtist()) ?
                               QVariant(track->album()->albumArtist()->name()) : QVariant();
    case Meta::valLabel:
      {
          Meta::LabelList labels = track->labels();
          QStringList strLabels;
          foreach( Meta::LabelPtr label, labels )
              strLabels.append( label->name() );
          return QVariant( strLabels );
      }
    case Meta::valModified:  return track->modifyDate();
    default: return QVariant();
    }
}