View source for MPTF/MPTF Discussions/Timed Text

'''Submitter:''' CableLabs


'''Tracker Issue ID:''' [http://www.w3.org/2011/webtv/track/issues/33 ISSUE-33]


'''Description: '''

The content provider is able to identify temporal regions for display of textual data with the video playback. Two important applications of timed text are:
# Closed captions
# Subtitles


'''Motivation: '''

# Need textual information for hearing-impaired viewers or speakers of different languages.


'''Dependencies: '''

# Closed captioning information may need to be transmitted using existing government-mandated television standards.
# Accessibility for different language speakers is desirable.


'''What needs to be standardized'''

Timed text tracks currently support track kinds of caption and subtitle
# Track elements are expected to only appear at the beginning of a media stream. Track elements will come and go if the media stream is scheduled programming to there needs to be way to account for this.


'''Comments:'''