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AVAsset.MetadataKeys

Queries metadata keys.

Component Version macOS Windows Server FileMaker Cloud FileMaker iOS SDK
AVAsset 5.2 Yes No Yes, macOS only No Yes

MBS( "AVAsset.MetadataKeys"; Asset { ; Format } )

Parameters

Parameter Description Example value
Asset The reference number of the asset. Please use AVAsset.OpenContainer, AVAsset.OpenFile or AVAsset.OpenURL function to get asset reference. $asset
Format Optional
The metadata format to use.
"com.apple.quicktime.udta"

Result

Returns list or error.

Description

Queries metadata keys.
You can pass empty format to query all keys.
Or you use AVAsset.AvailableMetadataFormats to query the list of formats and limit query to only the given format.

Examples

Queries metadata keys:

MBS( "AVAsset.MetadataKeys"; "40001" )

See also

Example Databases


AVAsset.Metadata   -   AVAsset.NaturalHeight

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Links
MBS Xojo tutorial videos