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Difference between revisions of "Use cases for timed tracks rendered over video by the UA"
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<img src="http://joeclark.org/access/crtc/CRTC-2008/reply/images/CCfoto-CBC-CC-ST-ManWithoutaFace.jpg" title="things gone wrong"> | <img src="http://joeclark.org/access/crtc/CRTC-2008/reply/images/CCfoto-CBC-CC-ST-ManWithoutaFace.jpg" title="things gone wrong"> | ||
<img src="http://dashiva.net/misc/vertical_karaoke.jpg"> | <img src="http://dashiva.net/misc/vertical_karaoke.jpg"> | ||
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+ | 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 | ||
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+ | This example shows that we need line-based positioning: http://www.youtube.com/watch?v=bw5JBWdaUHI#t=0m12s | ||
=== Ruby === | === Ruby === | ||
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** word-level italics control | ** word-level italics control | ||
** frame-level timing | ** frame-level timing | ||
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Revision as of 21:35, 23 April 2010
This page contains examples of features where timed tracks are rendered over video by user agents natively.
Return to timed tracks home page.
Contents
Static Examples
These are categorised by what features they demonstrate that is most interesting.
Positioning
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
Ruby
Italics or other inline emphasis
Karaoke
Multiple voices
Important line feeds
Plain text
Background emphasis
This is from a mobile phone and needs particular contrast and visibility.
Legal notices
Watermarks
Informative
Formal documentation for real-world captioning
- CBC captioning manual requires:
- minor control over position
- word-level italics control
- frame-level timing