Use cases for timed tracks rendered over video by the UA
This page contains examples of features where timed tracks are rendered over video by user agents natively.
Return to timed tracks home page.
- 1 Static Examples
- 1.1 Positioning
- 1.2 Ruby
- 1.3 Italics or other inline emphasis
- 1.4 Karaoke
- 1.5 Multiple voices
- 1.6 Important line feeds
- 1.7 Plain text
- 1.8 Background emphasis
- 1.9 Multiple colors
- 1.10 Legal notices
- 1.11 Watermarks
- 1.12 Hyperlinks on caption cues or indivdual words
- 1.13 Informative
- 1.14 Formal documentation for real-world captioning
These are categorised by what features they demonstrate that is most interesting.
This example shows how multiple segments with overlapping times should be automatically placed so as to not overlap: http://www.youtube.com/watch?v=xG9KluukpJI#t=2m40
This example shows that we need line-based positioning: http://www.youtube.com/watch?v=bw5JBWdaUHI#t=0m12s
Italics or other inline emphasis
Important line feeds
This is from a mobile phone and needs particular contrast and visibility.
Colors are often used in closing comments to signify the author of the captions.
- CBC captioning manual requires:
- minor control over position
- word-level italics control
- frame-level timing