C++ MusicMetadata::setLastPlay方法代码示例

//.........这里部分代码省略.........
    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;
}

static int UpdateMeta(const MythUtilCommandLineParser &cmdline)
{
    bool ok = true;
    int result = GENERIC_EXIT_OK;

    if (cmdline.toString("songid").isEmpty())
    {
        LOG(VB_GENERAL, LOG_ERR, "Missing --songid option");
        return GENERIC_EXIT_INVALID_CMDLINE;
    }
    int songID = cmdline.toInt("songid");

    MusicMetadata *mdata = MusicMetadata::createFromID(songID);
    if (!mdata)
    {
        LOG(VB_GENERAL, LOG_ERR, QString("Cannot find metadata for trackid: %1").arg(songID));
        return GENERIC_EXIT_NOT_OK;
    }

    if (!cmdline.toString("title").isEmpty())
        mdata->setTitle(cmdline.toString("title"));

    if (!cmdline.toString("artist").isEmpty())
        mdata->setArtist(cmdline.toString("artist"));

    if (!cmdline.toString("album").isEmpty())
        mdata->setAlbum(cmdline.toString("album"));

    if (!cmdline.toString("genre").isEmpty())
        mdata->setGenre(cmdline.toString("genre"));

    if (!cmdline.toString("trackno").isEmpty())
        mdata->setTrack(cmdline.toInt("trackno"));

    if (!cmdline.toString("year").isEmpty())
        mdata->setYear(cmdline.toInt("year"));

    if (!cmdline.toString("rating").isEmpty())
        mdata->setRating(cmdline.toInt("rating"));

    if (!cmdline.toString("playcount").isEmpty())
        mdata->setPlaycount(cmdline.toInt("playcount"));

    if (!cmdline.toString("lastplayed").isEmpty())
        mdata->setLastPlay(cmdline.toDateTime("lastplayed"));

    mdata->dumpToDatabase();

    MetaIO *tagger = mdata->getTagger();
    if (tagger)
    {
        ok = tagger->write(mdata->getLocalFilename(), mdata);

        if (!ok)
            LOG(VB_GENERAL, LOG_ERR, QString("Failed to write to tag for trackid: %1").arg(songID));
    }

    // tell any clients that the metadata for this track has changed
    gCoreContext->SendMessage(QString("MUSIC_METADATA_CHANGED %1").arg(songID));

    if (!ok)
        result = GENERIC_EXIT_NOT_OK;

    return result;
}