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| |
| #include "qmediastoragelocation_p.h" |
| |
| #include <QStandardPaths> |
| |
| QT_BEGIN_NAMESPACE |
| |
| QMediaStorageLocation::QMediaStorageLocation() |
| { |
| } |
| |
| void QMediaStorageLocation::addStorageLocation(MediaType type, const QString &location) |
| { |
| m_customLocations[type].append(location); |
| } |
| |
| QDir QMediaStorageLocation::defaultLocation(MediaType type) const |
| { |
| QStringList dirCandidates; |
| |
| dirCandidates << m_customLocations.value(type); |
| |
| switch (type) { |
| case Movies: |
| dirCandidates << QStandardPaths::writableLocation(QStandardPaths::MoviesLocation); |
| break; |
| case Music: |
| dirCandidates << QStandardPaths::writableLocation(QStandardPaths::MusicLocation); |
| break; |
| case Pictures: |
| dirCandidates << QStandardPaths::writableLocation(QStandardPaths::PicturesLocation); |
| default: |
| break; |
| } |
| |
| dirCandidates << QDir::homePath(); |
| dirCandidates << QDir::currentPath(); |
| dirCandidates << QDir::tempPath(); |
| |
| for (const QString &path : qAsConst(dirCandidates)) { |
| if (QFileInfo(path).isWritable()) |
| return QDir(path); |
| } |
| |
| return QDir(); |
| } |
| |
| QString QMediaStorageLocation::generateFileName(const QString &requestedName, |
| MediaType type, |
| const QString &prefix, |
| const QString &extension) const |
| { |
| if (requestedName.isEmpty()) |
| return generateFileName(prefix, defaultLocation(type), extension); |
| |
| QString path = requestedName; |
| |
| if (QFileInfo(path).isRelative()) |
| path = defaultLocation(type).absoluteFilePath(path); |
| |
| if (QFileInfo(path).isDir()) |
| return generateFileName(prefix, QDir(path), extension); |
| |
| if (!path.endsWith(extension)) |
| path.append(QString(QLatin1String(".%1")).arg(extension)); |
| |
| return path; |
| } |
| |
| QString QMediaStorageLocation::generateFileName(const QString &prefix, |
| const QDir &dir, |
| const QString &extension) const |
| { |
| QMutexLocker lock(&m_mutex); |
| |
| const QString lastMediaKey = dir.absolutePath() + QLatin1Char(' ') + prefix + QLatin1Char(' ') + extension; |
| qint64 lastMediaIndex = m_lastUsedIndex.value(lastMediaKey, 0); |
| |
| if (lastMediaIndex == 0) { |
| // first run, find the maximum media number during the fist capture |
| const auto list = dir.entryList(QStringList() << QString(QLatin1String("%1*.%2")).arg(prefix).arg(extension)); |
| for (const QString &fileName : list) { |
| const qint64 mediaIndex = fileName.midRef(prefix.length(), fileName.size() - prefix.length() - extension.length() - 1).toInt(); |
| lastMediaIndex = qMax(lastMediaIndex, mediaIndex); |
| } |
| } |
| |
| // don't just rely on cached lastMediaIndex value, |
| // someone else may create a file after camera started |
| while (true) { |
| const QString name = QString(QLatin1String("%1%2.%3")).arg(prefix) |
| .arg(lastMediaIndex + 1, 8, 10, QLatin1Char('0')) |
| .arg(extension); |
| |
| const QString path = dir.absoluteFilePath(name); |
| if (!QFileInfo::exists(path)) { |
| m_lastUsedIndex[lastMediaKey] = lastMediaIndex + 1; |
| return path; |
| } |
| |
| lastMediaIndex++; |
| } |
| |
| return QString(); |
| } |
| |
| QT_END_NAMESPACE |