Custom Metadata

This page is about valid key-value pairs which can be used within Adobe Premiere Pro + Media Encoder and synced to Cosmo.

In general Adobe is following the default definition of allowed character for xmp.

Key

Are case-sensitive
Can not start with a number
Can not contain underscore (_)

Value

Are case-sensitive
Can start with a number, contain only numbers, or be a combination of numbers and letters
Can contain underscores (_)

Example for metadata key

Metadata key: "key_value pair" This is not valid because there is a underscore in the key name. While values can contain spaces, keys can not.

Metadata key: "1story" This is not valid because the key starts with a number which is forbidden.

Disallowed characters in keys or values

The following characters are reserved and not allowed in key names or values.

Character

not allowed in

Description

Key

Double quotes

Key

Single quotes or apostrophe

Key/Value

Equal sign

Key

Exclamation point

Key

Plus sign

Key/Value

Pound or hash symbol

Key/Value

Asterisk

Key/Value

Tilde

;

Key/Value

Semicolon

Key/Value

Caret

()

Key/Value

Parentheses

< >

Key/Value

Angle brackets

[ ]

Key/Value

Square brackets

Key/Value

Comma

Key/Value

Ampersand

Key/Value

Pipe

Key

Question mark

Key/Value

Double point

Umlauts

As umlauts are often treated as special characters, those can cause issues when working on different operating systems as well with foreign language projects.

Within Helmut4 we have defined the most known and used umlauts in the European region to be proper detected & escaped when indexing a project.

Lower case

Uper case

Description

German

ẞ

German

Northern Europe

Western Europe

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Last updated 1 year ago