---
title: Timed metadata dictionary keys
framework: mediaplayer
role: collectionGroup
role_heading: API Collection
path: mediaplayer/timed-metadata-dictionary-keys
---

# Timed metadata dictionary keys

Dictionary keys for use with the allMetadata property. All keys are optional.

## Topics

### Constants

- [MPMoviePlayerTimedMetadataKeyName](mediaplayer/mpmovieplayertimedmetadatakeyname.md)
- [MPMoviePlayerTimedMetadataKeyInfo](mediaplayer/mpmovieplayertimedmetadatakeyinfo.md)
- [MPMoviePlayerTimedMetadataKeyMIMEType](mediaplayer/mpmovieplayertimedmetadatakeymimetype.md)
- [MPMoviePlayerTimedMetadataKeyDataType](mediaplayer/mpmovieplayertimedmetadatakeydatatype.md)
- [MPMoviePlayerTimedMetadataKeyLanguageCode](mediaplayer/mpmovieplayertimedmetadatakeylanguagecode.md)