Supported Closed Captions

Before uploading closed caption files to Backlot, verify that you are using a supported language and file format.

Supported Closed Caption File Formats

You can upload closed caption files that use any of the following file formats.
Important: To ingest or upload a closed caption file, be sure to use the appropriate option (Ooyala Ingestion Service, Backlot UI, or Backlot API) that supports (✔) the format that you want to load into your Backlot account.
Note: If the source file uploaded is not of the same type as what the receiving device uses, styling added into the closed caption files is currently removed. For the Ooyala Web Player, WebVTT is used. For the Ooyala iOS and Android SDKs, TTML format is used. If the uploaded closed caption file type does not match, our closed caption conversion service converts the format to be compatible, but removes any style formatting in the conversion.
Extension Description OIS Backlot UI Backlot API
.TTML (formerly DXFP) TTML (Timed Text Markup Language file. Generally, a closed caption file will have a .dfxp (Distribution Format Exchange Profile) extension. For details, see Supported Closed Caption DFXP (now TTML) Format.
.SCC SCC (Scenarist Closed Caption) file.  
.SRT WebSRT (Web Subtitle Resource Tracks) file.    
.VTT WebVTT (Web Video Text Tracks) file.  

Supported Closed Caption Languages

You can upload closed caption files that use any of the following languages.
Note: The language codes used for closed caption files should be in the ISO 639-1 format.
Language Code Language
ar Arabic
ca Catalan
zh-Hans Chinese (Simplified)
zh-Hant Chinese (Traditional)
cs Czech
da Danish
nl Dutch
en English
fi Finnish
fr French
de German
el Greek
he Hebrew
hi Hindi
hu Hungarian
is Icelandic
id Indonesian
it Italian
jp Japanese
ko Korean
ms Malay
no Norwegian
pl Polish
pt Portuguese
pa Punjabi
ro Romanian
sr Serbian
es Spanish
sv Swedish
ta Tamil
th Thai
tr Turkish
uk Ukrainian
vi Vietnamese
Note: If you are uploading a closed caption file using an ingest manifest, you can specify the language code in the CSV Manifest File and XML Manifest File.