C++ MediaSource::fileName方法代码示例

/*
 * !reimp
 */
void MediaObject::setSource(const MediaSource &source)
{
    QMultiMap<QString, QString> ret;

    ret.insert(QLatin1String("ARTIST"), "Nokia Dude");
    ret.insert(QLatin1String("ALBUM"), "Sound of silence");
    ret.insert(QLatin1String("DATE"), "2009");

    m_error = Phonon::NoError;
    setState(Phonon::LoadingState);

    m_source = source;
    currentPos = 0;

    if((source.fileName().contains(".avi")) ||
       (source.fileName().contains(".mp4"))) {
        m_hasVideo = true;
        emit hasVideoChanged(m_hasVideo);
    }
    if(source.fileName().contains(".wav")) {
        QFile file(source.fileName());
        if (file.open(QIODevice::ReadOnly)) {
            int len = file.read((char*)&header, sizeof(CombinedHeader));
            if(len == sizeof(CombinedHeader)) {
                if(memcmp(&header.riff.descriptor.id, riffId, 4) != 0) {
                    // Not a valid wav file, to satisfy unit test for mediaobject
                    m_error = Phonon::FatalError;
                    //m_state = Phonon::ErrorState;
                    m_errorString = "Invalid wav file";
                    setState(Phonon::ErrorState);
                    file.close();
                    return;
                }
            }
            file.close();
        }
    }
    emit metaDataChanged(ret);
    emit currentSourceChanged(source);
    emit totalTimeChanged(m_totalTime);

    setState(Phonon::StoppedState);
}

/** Add a track to this Playlist instance. */
void Playlist::append(const MediaSource &m)
{
	// Resolve metaDatas from TagLib
	TagLib::FileRef f(m.fileName().toLocal8Bit().data());
	if (!f.isNull()) {
		sources.append(m);
		QString title(f.tag()->title().toCString());
		if (title.isEmpty()) {
			// Filename in a MediaSource doesn't handle cross-platform QDir::separator(), so '/' is hardcoded
			title = m.fileName().split('/').last();
		}

		// Then, construct a new row with correct informations
		QList<QTableWidgetItem *> widgetItems;
		QTableWidgetItem *trackItem = new QTableWidgetItem(QString::number(f.tag()->track()));
		QTableWidgetItem *titleItem = new QTableWidgetItem(title);
		QTableWidgetItem *albumItem = new QTableWidgetItem(f.tag()->album().toCString());
		QTableWidgetItem *lengthItem = new QTableWidgetItem(this->convertTrackLength(f.audioProperties()->length()));
		QTableWidgetItem *artistItem = new QTableWidgetItem(f.tag()->artist().toCString());
		QTableWidgetItem *ratingItem = new QTableWidgetItem("***");
		QTableWidgetItem *yearItem = new QTableWidgetItem(QString::number(f.tag()->year()));

		widgetItems << trackItem << titleItem << albumItem << lengthItem << artistItem << ratingItem << yearItem;

		int currentRow = rowCount();
		insertRow(currentRow);

		QFont font = Settings::getInstance()->font(Settings::PLAYLIST);
		for (int i=0; i < widgetItems.length(); i++) {
			QTableWidgetItem *item = widgetItems.at(i);
			item->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
			item->setFont(font);
			setItem(currentRow, i, item);
			QFontMetrics fm(font);
			setRowHeight(currentRow, fm.height());
		}

		trackItem->setTextAlignment(Qt::AlignCenter);
		lengthItem->setTextAlignment(Qt::AlignCenter);
		ratingItem->setTextAlignment(Qt::AlignCenter);
		yearItem->setTextAlignment(Qt::AlignCenter);
	}
}

void MediaSourceTest::testIODevice()
{
    const QByteArray data("0192380");
    QBuffer *buffer = new QBuffer;
    buffer->setData(data);
    buffer->open(QIODevice::ReadOnly);

    MediaSource a(buffer);
    QCOMPARE(a.type(), MediaSource::Stream);
    QCOMPARE(a.fileName(), QString());
    QCOMPARE(a.url(), QUrl());
    QCOMPARE(a.discType(), Phonon::NoDisc);
    QVERIFY(a.stream() != 0);
    QCOMPARE(a.deviceName(), QString());
    //QCOMPARE(a.audioCaptureDevice(), AudioCaptureDevice());
    //QCOMPARE(a.videoCaptureDevice(), VideoCaptureDevice());
    MediaSource b(a);
    MediaSource c;
    c = a;
    QCOMPARE(a, b);
    QCOMPARE(a, c);
    QCOMPARE(b, c);

    QCOMPARE(b.type(), MediaSource::Stream);
    QCOMPARE(b.fileName(), QString());
    QCOMPARE(b.url(), QUrl());
    QCOMPARE(b.discType(), Phonon::NoDisc);
    QVERIFY(b.stream() != 0);
    QCOMPARE(b.deviceName(), QString());
    //QCOMPARE(b.audioCaptureDevice(), AudioCaptureDevice());
    //QCOMPARE(b.videoCaptureDevice(), VideoCaptureDevice());

    QCOMPARE(c.type(), MediaSource::Stream);
    QCOMPARE(c.fileName(), QString());
    QCOMPARE(c.url(), QUrl());
    QCOMPARE(c.discType(), Phonon::NoDisc);
    QVERIFY(c.stream() != 0);
    QCOMPARE(c.deviceName(), QString());
    //QCOMPARE(c.audioCaptureDevice(), AudioCaptureDevice());
    //QCOMPARE(c.videoCaptureDevice(), VideoCaptureDevice());

    delete buffer;
    QCOMPARE(a.type(), MediaSource::Invalid);
    QCOMPARE(b.type(), MediaSource::Invalid);
    QCOMPARE(c.type(), MediaSource::Invalid);
    const AbstractMediaStream *null = 0;
    QCOMPARE(a.stream(), null);
    QCOMPARE(b.stream(), null);
    QCOMPARE(c.stream(), null);
}

void MediaSourceTest::testStream()
{
    AbstractMediaStream *stream = new Stream;

    MediaSource a(stream);
    QCOMPARE(a.type(), MediaSource::Stream);
    QCOMPARE(a.fileName(), QString());
    QCOMPARE(a.url(), QUrl());
    QCOMPARE(a.discType(), Phonon::NoDisc);
    QCOMPARE(a.stream(), stream);
    QCOMPARE(a.deviceName(), QString());
    //QCOMPARE(a.audioCaptureDevice(), AudioCaptureDevice());
    //QCOMPARE(a.videoCaptureDevice(), VideoCaptureDevice());
    MediaSource b(a);
    MediaSource c;
    c = a;
    QCOMPARE(a, b);
    QCOMPARE(a, c);
    QCOMPARE(b, c);

    QCOMPARE(b.type(), MediaSource::Stream);
    QCOMPARE(b.fileName(), QString());
    QCOMPARE(b.url(), QUrl());
    QCOMPARE(b.discType(), Phonon::NoDisc);
    QCOMPARE(b.stream(), stream);
    QCOMPARE(b.deviceName(), QString());
    //QCOMPARE(b.audioCaptureDevice(), AudioCaptureDevice());
    //QCOMPARE(b.videoCaptureDevice(), VideoCaptureDevice());

    QCOMPARE(c.type(), MediaSource::Stream);
    QCOMPARE(c.fileName(), QString());
    QCOMPARE(c.url(), QUrl());
    QCOMPARE(c.discType(), Phonon::NoDisc);
    QCOMPARE(c.stream(), stream);
    QCOMPARE(c.deviceName(), QString());
    //QCOMPARE(c.audioCaptureDevice(), AudioCaptureDevice());
    //QCOMPARE(c.videoCaptureDevice(), VideoCaptureDevice());

    delete stream;
    QCOMPARE(a.type(), MediaSource::Invalid);
    QCOMPARE(b.type(), MediaSource::Invalid);
    QCOMPARE(c.type(), MediaSource::Invalid);
    const AbstractMediaStream *null = 0;
    QCOMPARE(a.stream(), null);
    QCOMPARE(b.stream(), null);
    QCOMPARE(c.stream(), null);
}

void MediaSourceTest::testDiscType()
{
    for (int i = 0; i <= Phonon::Vcd; ++i) {
        Phonon::DiscType discType = static_cast<Phonon::DiscType>(i);
        AbstractMediaStream *stream = 0;

        MediaSource a(discType);

        QCOMPARE(a.type(), MediaSource::Disc);
        QCOMPARE(a.fileName(), QString());
        QCOMPARE(a.url(), QUrl());
        QCOMPARE(a.discType(), discType);
        QCOMPARE(a.stream(), stream);
        QCOMPARE(a.deviceName(), QString());
        //QCOMPARE(a.audioCaptureDevice(), AudioCaptureDevice());
        //QCOMPARE(a.videoCaptureDevice(), VideoCaptureDevice());
        MediaSource b(a);
        MediaSource c;
        c = a;
        QCOMPARE(a, b);
        QCOMPARE(a, c);
        QCOMPARE(b, c);

        QCOMPARE(b.type(), MediaSource::Disc);
        QCOMPARE(b.fileName(), QString());
        QCOMPARE(b.url(), QUrl());
        QCOMPARE(b.discType(), discType);
        QCOMPARE(b.stream(), stream);
        QCOMPARE(b.deviceName(), QString());
        //QCOMPARE(b.audioCaptureDevice(), AudioCaptureDevice());
        //QCOMPARE(b.videoCaptureDevice(), VideoCaptureDevice());

        QCOMPARE(c.type(), MediaSource::Disc);
        QCOMPARE(c.fileName(), QString());
        QCOMPARE(c.url(), QUrl());
        QCOMPARE(c.discType(), discType);
        QCOMPARE(c.stream(), stream);
        QCOMPARE(c.deviceName(), QString());
        //QCOMPARE(c.audioCaptureDevice(), AudioCaptureDevice());
        //QCOMPARE(c.videoCaptureDevice(), VideoCaptureDevice());
    }
}

void MediaSourceTest::testUrl()
{
    QUrl url("http://www.example.com/music.ogg");
    AbstractMediaStream *stream = 0;

    MediaSource a(url);
    QCOMPARE(a.type(), MediaSource::Url);
    QCOMPARE(a.fileName(), QString());
    QCOMPARE(a.url(), url);
    QCOMPARE(a.discType(), Phonon::NoDisc);
    QCOMPARE(a.stream(), stream);
    QCOMPARE(a.deviceName(), QString());
    //QCOMPARE(a.audioCaptureDevice(), AudioCaptureDevice());
    //QCOMPARE(a.videoCaptureDevice(), VideoCaptureDevice());
    MediaSource b(a);
    MediaSource c;
    c = a;
    QCOMPARE(a, b);
    QCOMPARE(a, c);
    QCOMPARE(b, c);

    QCOMPARE(b.type(), MediaSource::Url);
    QCOMPARE(b.fileName(), QString());
    QCOMPARE(b.url(), url);
    QCOMPARE(b.discType(), Phonon::NoDisc);
    QCOMPARE(b.stream(), stream);
    QCOMPARE(b.deviceName(), QString());
    //QCOMPARE(b.audioCaptureDevice(), AudioCaptureDevice());
    //QCOMPARE(b.videoCaptureDevice(), VideoCaptureDevice());

    QCOMPARE(c.type(), MediaSource::Url);
    QCOMPARE(c.fileName(), QString());
    QCOMPARE(c.url(), url);
    QCOMPARE(c.discType(), Phonon::NoDisc);
    QCOMPARE(c.stream(), stream);
    QCOMPARE(c.deviceName(), QString());
    //QCOMPARE(c.audioCaptureDevice(), AudioCaptureDevice());
    //QCOMPARE(c.videoCaptureDevice(), VideoCaptureDevice());
}

void MediaSourceTest::testQtResource()
{
    const QString filename(":/ogg/zero.ogg");
    MediaSource a(filename);
    QCOMPARE(a.type(), MediaSource::Stream);
    QCOMPARE(a.fileName(), QString());
    QCOMPARE(a.url(), QUrl());
    QCOMPARE(a.discType(), Phonon::NoDisc);
    QVERIFY(a.stream() != 0);
    QCOMPARE(a.deviceName(), QString());
    //QCOMPARE(a.audioCaptureDevice(), AudioCaptureDevice());
    //QCOMPARE(a.videoCaptureDevice(), VideoCaptureDevice());
    MediaSource b(a);
    MediaSource c;
    c = a;
    QCOMPARE(a, b);
    QCOMPARE(a, c);
    QCOMPARE(b, c);

    QCOMPARE(b.type(), MediaSource::Stream);
    QCOMPARE(b.fileName(), QString());
    QCOMPARE(b.url(), QUrl());
    QCOMPARE(b.discType(), Phonon::NoDisc);
    QVERIFY(b.stream() != 0);
    QCOMPARE(b.deviceName(), QString());
    //QCOMPARE(b.audioCaptureDevice(), AudioCaptureDevice());
    //QCOMPARE(b.videoCaptureDevice(), VideoCaptureDevice());

    QCOMPARE(c.type(), MediaSource::Stream);
    QCOMPARE(c.fileName(), QString());
    QCOMPARE(c.url(), QUrl());
    QCOMPARE(c.discType(), Phonon::NoDisc);
    QVERIFY(c.stream() != 0);
    QCOMPARE(c.deviceName(), QString());
    //QCOMPARE(c.audioCaptureDevice(), AudioCaptureDevice());
    //QCOMPARE(c.videoCaptureDevice(), VideoCaptureDevice());
}

void MMF::MediaObject::createPlayer(const MediaSource &source)
{
    TRACE_CONTEXT(MediaObject::createPlayer, EAudioApi);
    TRACE_ENTRY("state %d source.type %d", state(), source.type());
    TRACE_ENTRY("source.type %d", source.type());

    MediaType mediaType = MediaTypeUnknown;

    AbstractPlayer* oldPlayer = m_player.data();

    const bool oldPlayerHasVideo = oldPlayer->hasVideo();
    const bool oldPlayerSeekable = oldPlayer->isSeekable();

    QString errorMessage;

    // Determine media type
    switch (source.type()) {
    case MediaSource::LocalFile:
        mediaType = fileMediaType(source.fileName());
        break;

    case MediaSource::Url:
        {
            const QUrl url(source.url());
            if (url.scheme() == QLatin1String("file")) {
                mediaType = fileMediaType(url.toLocalFile());
            }
            else {
                // Streaming playback is generally not supported by the implementation
                // of the audio player API, so we use CVideoPlayerUtility for both
                // audio and video streaming.
                mediaType = MediaTypeVideo;
            }
        }
        break;

    case MediaSource::Invalid:
    case MediaSource::Disc:
    case MediaSource::Stream:
        errorMessage = tr("Error opening source: type not supported");
        break;

    case MediaSource::Empty:
        TRACE_0("Empty media source");
        break;
    }

    if (oldPlayer)
        oldPlayer->close();

    AbstractPlayer* newPlayer = 0;

    // Construct newPlayer using oldPlayer (if not 0) in order to copy
    // parameters (volume, prefinishMark, transitionTime) which may have
    // been set on oldPlayer.

    switch (mediaType) {
    case MediaTypeUnknown:
        TRACE_0("Media type could not be determined");
        newPlayer = new DummyPlayer(oldPlayer);
        errorMessage = tr("Error opening source: media type could not be determined");
        break;

    case MediaTypeAudio:
        newPlayer = new AudioPlayer(this, oldPlayer);
        break;

    case MediaTypeVideo:
#ifdef PHONON_MMF_VIDEO_SURFACES
        newPlayer = SurfaceVideoPlayer::create(this, oldPlayer);
#else
        newPlayer = DsaVideoPlayer::create(this, oldPlayer);
#endif
        break;
    }

    if (oldPlayer)
        emit abstractPlayerChanged(0);
    m_player.reset(newPlayer);
    emit abstractPlayerChanged(newPlayer);

    if (oldPlayerHasVideo != hasVideo()) {
        emit hasVideoChanged(hasVideo());
    }

    if (oldPlayerSeekable != isSeekable()) {
        emit seekableChanged(isSeekable());
    }

    connect(m_player.data(), SIGNAL(totalTimeChanged(qint64)), SIGNAL(totalTimeChanged(qint64)));
    connect(m_player.data(), SIGNAL(stateChanged(Phonon::State,Phonon::State)), SIGNAL(stateChanged(Phonon::State,Phonon::State)));
    connect(m_player.data(), SIGNAL(finished()), SIGNAL(finished()));
    connect(m_player.data(), SIGNAL(bufferStatus(int)), SIGNAL(bufferStatus(int)));
    connect(m_player.data(), SIGNAL(metaDataChanged(QMultiMap<QString,QString>)), SIGNAL(metaDataChanged(QMultiMap<QString,QString>)));
    connect(m_player.data(), SIGNAL(aboutToFinish()), SIGNAL(aboutToFinish()));
    connect(m_player.data(), SIGNAL(prefinishMarkReached(qint32)), SIGNAL(prefinishMarkReached(qint32)));
    connect(m_player.data(), SIGNAL(prefinishMarkReached(qint32)), SLOT(handlePrefinishMarkReached(qint32)));
    connect(m_player.data(), SIGNAL(tick(qint64)), SIGNAL(tick(qint64)));

    // We need to call setError() after doing the connects, otherwise the
//.........这里部分代码省略.........

void MediaSourceTest::testLocalFile()
{
    QString filename("/usr/share/sounds/KDE_Beep.ogg");
    AbstractMediaStream *stream = 0;

    MediaSource a(filename);
    QCOMPARE(a.type(), MediaSource::LocalFile);
    QCOMPARE(a.fileName(), filename);
    QCOMPARE(a.url(), QUrl::fromLocalFile(filename));
    QCOMPARE(a.discType(), Phonon::NoDisc);
    QCOMPARE(a.stream(), stream);
    QCOMPARE(a.deviceName(), QString());
    //QCOMPARE(a.audioCaptureDevice(), AudioCaptureDevice());
    //QCOMPARE(a.videoCaptureDevice(), VideoCaptureDevice());
    MediaSource b(a);
    MediaSource c;
    c = a;
    QCOMPARE(a, b);
    QCOMPARE(a, c);
    QCOMPARE(b, c);

    QCOMPARE(b.type(), MediaSource::LocalFile);
    QCOMPARE(b.fileName(), filename);
    QCOMPARE(b.url(), QUrl::fromLocalFile(filename));
    QCOMPARE(b.discType(), Phonon::NoDisc);
    QCOMPARE(b.stream(), stream);
    QCOMPARE(b.deviceName(), QString());
    //QCOMPARE(b.audioCaptureDevice(), AudioCaptureDevice());
    //QCOMPARE(b.videoCaptureDevice(), VideoCaptureDevice());

    QCOMPARE(c.type(), MediaSource::LocalFile);
    QCOMPARE(c.fileName(), filename);
    QCOMPARE(c.url(), QUrl::fromLocalFile(filename));
    QCOMPARE(c.discType(), Phonon::NoDisc);
    QCOMPARE(c.stream(), stream);
    QCOMPARE(c.deviceName(), QString());
    //QCOMPARE(c.audioCaptureDevice(), AudioCaptureDevice());
    //QCOMPARE(c.videoCaptureDevice(), VideoCaptureDevice());

    // non-existing files should become invalid sources
    filename = "/some/invalid/file.xyz";
    MediaSource invalid(filename);
    QCOMPARE(invalid.type(), MediaSource::Invalid);
    QCOMPARE(invalid.fileName(), QString());

    //test that a relative file path is correctly set as an absolute URL
    QFile testFile("foo.ogg");
    bool deleteFile = false;
    if (!testFile.exists()) {
        deleteFile = true;
        testFile.open(QIODevice::WriteOnly);
        testFile.close();
    }
    filename = "foo.ogg";
    MediaSource relative(filename);
    //QCOMPARE(relative.fileName(), filename);
    QFileInfo urlInfo(relative.url().toLocalFile());
    QVERIFY(urlInfo.isAbsolute());
    QCOMPARE(urlInfo.fileName(), filename);
    QCOMPARE(urlInfo.absolutePath(), QDir::currentPath());
    if (deleteFile) {
        testFile.remove();
    }
}