asProperties

Flat string pairs, version-stamped. Keys: version, queue.size, then per item queue.N.uri, queue.N.formatHint, queue.N.startPosition (microseconds), queue.N.clipStart and queue.N.clipEnd (microseconds) for a clipped item, queue.N.title, queue.N.artist, queue.N.album, queue.N.audioContent when it is not automatic, queue.N.header.<name>, queue.N.option.<key> and queue.N.demux.<field>; then queueOrder as space-separated positions when there is one, one key per setting, durations in microseconds, and audioLanguage and subtitleLanguage only when known.