C++ MediaInfo::setCueStartIndex方法代码示例

void CUEParser::load() {
	QTime timeElapsed;
	timeElapsed.start();

	_stop = false;

	QList<MediaInfo> files;

	qDebug() << __FUNCTION__ << "Playlist:" << _filename;

	//See http://regexlib.com/DisplayPatterns.aspx

	//REM GENRE "Alternative rock"
	//REM GENRE Pop
	static QRegExp rx_genre("^REM GENRE (.*)$");
	//REM DATE 1994
	static QRegExp rx_date("^REM DATE (\\d+)$");
	//PERFORMER "Weezer"
	static QRegExp rx_root_performer("^PERFORMER \"(.*)\"$");
	//TITLE "Weezer (The Blue Album)"
	static QRegExp rx_root_title("^TITLE \"(.*)\"$");
	//FILE "01. My Name Is Jonas - [Weezer] .wav" WAVE
	static QRegExp rx_file("^FILE \"(.*)\"");
	//  TRACK 01 AUDIO
	static QRegExp rx_track("^  TRACK (\\d+)");
	//    TITLE "No One Else"
	static QRegExp rx_title("^    TITLE \"(.*)\"$");
	//    PERFORMER "Weezer"
	static QRegExp rx_performer("^    PERFORMER \"(.*)\"$");
	//    INDEX 01 00:00:00
	static QRegExp rx_index("^    INDEX 01 (.*)$");

	QFile file(_filename);
	if (file.open(QIODevice::ReadOnly)) {
		QString path(QFileInfo(_filename).path());

		QTextStream stream(&file);

		MediaInfo mediaInfo;

		//Root elements
		QString genre;
		QString date;
		QString albumArtist;
		QString album;
		///

		QString filename;

		while (!stream.atEnd() && !_stop) {
			//Line of text, don't use trimmed()
			//since CUE sheet files contain indentation spaces
			QString line(stream.readLine());

			if (line.isEmpty()) {
				//Do nothing
			}

			else if (rx_genre.indexIn(line) != -1) {
				genre = rx_genre.cap(1);
			}

			else if (rx_date.indexIn(line) != -1) {
				date = rx_date.cap(1);
			}

			else if (rx_root_performer.indexIn(line) != -1) {
				albumArtist = rx_root_performer.cap(1);
			}

			else if (rx_root_title.indexIn(line) != -1) {
				album = rx_root_title.cap(1);
			}

			else if (rx_file.indexIn(line) != -1) {
				filename = rx_file.cap(1);
			}

			else if (rx_track.indexIn(line) != -1) {
				QString track(rx_track.cap(1));
				mediaInfo.insertMetadata(MediaInfo::TrackNumber, track);
			}

			else if (rx_title.indexIn(line) != -1) {
				QString title(rx_title.cap(1));
				mediaInfo.insertMetadata(MediaInfo::Title, title);
			}

			else if (rx_performer.indexIn(line) != -1) {
				QString performer(rx_performer.cap(1));
				mediaInfo.insertMetadata(MediaInfo::Artist, performer);
			}

			else if (rx_index.indexIn(line) != -1) {
				QString index(rx_index.cap(1));
				mediaInfo.setCueStartIndex(index);

				if (!files.isEmpty()) {
					//Now we know the CUE end index from the previous media
					files.last().setCueEndIndex(index);
//.........这里部分代码省略.........

//.........这里部分代码省略.........
			//Comment
			else if (element == XSPF_ANNOTATION) {
				QString annotation(xml.readElementText());
				if (mediaInfo.metadataValue(MediaInfo::Title).isEmpty()) {
					//Some people didn't understand how XSPF works
					//and confused annotation with title
					mediaInfo.insertMetadata(MediaInfo::Title, annotation);
				}
				mediaInfo.insertMetadata(MediaInfo::Comment, annotation);
			}

			//Length
			else if (element == XSPF_DURATION) {
				int duration = xml.readElementText().toInt();
				//XSPF gives us the duration in milliseconds
				//Let's convert it to seconds
				mediaInfo.setLength(duration / 1000);
			}

			//Album art URL
			else if (element == XSPF_IMAGE) {
				QString image(xml.readElementText());
				//FIXME not implemented yet
				//mediaInfo.insertMetadata(MediaInfo::AlbumArt, image);
			}

			//URL of the original web page
			else if (element == XSPF_INFO) {
				QString info(xml.readElementText());
				mediaInfo.insertMetadata(MediaInfo::URL, info);
			}

			//Meta
			else if (element == XSPF_META) {

				//These tags are specific to foobar2000 XSPF plugin

				QXmlStreamAttributes attributes = xml.attributes();

				//Date
				if (attributes.hasAttribute(XSPF_FOOBAR2000_DATE)) {
					QString date(attributes.value(XSPF_FOOBAR2000_DATE).toString());
					mediaInfo.insertMetadata(MediaInfo::Year, date);
				}

				//Genre
				else if (attributes.hasAttribute(XSPF_FOOBAR2000_GENRE)) {
					QString genre(attributes.value(XSPF_FOOBAR2000_GENRE).toString());
					mediaInfo.insertMetadata(MediaInfo::Genre, genre);
				}
			}

			else if (element == XSPF_EXTENSION) {
				QString xspfNamespace(xml.attributes().value(XSPF_APPLICATION).toString());

				if (xspfNamespace == XSPF_QUARKPLAYER_NAMESPACE) {
					while (!xml.atEnd() && !_stop) {
						xml.readNext();

						QString extensionElement(xml.name().toString());
						if (xml.isStartElement()) {

							if (extensionElement == XSPF_QUARKPLAYER_CUE_START_INDEX) {
								QString cueStartIndex(xml.readElementText());
								mediaInfo.setCueStartIndex(cueStartIndex);
							}

							else if (extensionElement == XSPF_QUARKPLAYER_CUE_END_INDEX) {
								QString cueEndIndex(xml.readElementText());
								mediaInfo.setCueEndIndex(cueEndIndex);
							}

							else if (extensionElement == XSPF_QUARKPLAYER_YEAR) {
								QString year(xml.readElementText());
								mediaInfo.insertMetadata(MediaInfo::Year, year);
							}

							else if (extensionElement == XSPF_QUARKPLAYER_GENRE) {
								QString genre(xml.readElementText());
								mediaInfo.insertMetadata(MediaInfo::Genre, genre);
							}
						}

						if (xml.isEndElement()) {
							if (extensionElement == XSPF_EXTENSION) {
								break;
							}
						}
					}
				}
			}
		}

		if (xml.isEndElement()) {
			if (element == XSPF_TRACK) {
				return;
			}
		}
	}
}