essenceTrackEncoding

The descriptor essenceTrackEncoding identifies how the actual information in a media item is compressed, interpreted, or formulated using a particular scheme. Identifying the encoding used is beneficial for a number of reasons, including as a way to achieve reversible compression; for the construction of document indices to facilitate searching and access; or for efficient distribution of the information across data networks with differing bandwidths or pipeline capacities.

XPATH LOCATION:

/ pbcoreDescriptionDocument / pbcoreInstantiation / instantiationEssenceTrack / essenceTrackEncoding

USAGE RULES:

Occurs:

1 time or less

May Contain:

4 or less optional attributes, specific:

Contained by:

Contained with:

[Any elements used MUST appear in this relative order]

EXAMPLES:

  • <essenceTrackEncoding source="PBCore essenceTrackEncoding" ref="http://metadataregistry.org/concept/show/id/2889.html">H.264/MPEG-4 AVC: QuickTime H.264 </essenceTrackEncoding>
  • <essenceTrackEncoding>WAV</essenceTrackEncoding>

VOCABULARIES:

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