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Table Of Contents
104Compressor User Guide
Spherical Video V1: The 360° metadata format most commonly used by sharing sites,
including YouTube and Vimeo.
Spherical Video V2: A less common but more up-to-date 360° metadata format used
by YouTube and Vimeo.
3. Click Start Batch to export your file and its 360° metadata.
If you applied a YouTube or Vimeo destination to the source file, the metadata will be
parsed by the sharing website so that your 360° video displays correctly.
360º image © 2015 Jaunt, Inc.
Work with captions
Intro to supporting captions in Compressor
Captions are lines of text superimposed over a video program and synchronized to the
program’s video and audio. Compressor lets you combine captions with video (and
optionally edit them) in either of two industry-standard caption formats:
CEA-608 closed captions: Originally developed for people who are deaf or hard of
hearing, CEA-608 closed captions (also known as Line 21 text) are frequently used on
televisions in loud environments (such as bars and airports). CEA-608 closed captions,
which use the .scc filename extension, offer numerous formatting options. Viewers can
turn closed captions on or off while watching television shows, movies, web videos, and
other programs. In Compressor, CEA-608 captions are compatible with iTunes Store
packages and many transcode settings.
iTT (iTunes Timed Text) subtitles: The caption format for subtitles in iTunes Store
content and in YouTube and Vimeo videos, iTT subtitles can be used to deliver foreign-
language translations or a transcript of dialog, narration, or audio descriptions to people
who are deaf or hard of hearing. iTT subtitles, which use the .itt filename extension,
offer more limited formatting options than CEA-608 captions. In Compressor, you can
specify whether to let viewers turn iTT subtitles on or off (for example, for full foreign-
language translations) or force subtitles to appear onscreen (for example, for specific
characters in a movie who speak a different language). In Compressor, iTT subtitles
are compatible with iTunes Store packages, but are of limited use in other transcode
settings because iTT subtitles can’t be directly embedded into a video file.