Timed Text Markup Language: Difference between revisions

Revision as of 10:53, 30 March 2015

Revision as of 15:26, 30 April 2015

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| mime = application/ttml+xml

| developer = [[World Wide Web Consortium|W3C]]

| released = {{start date and age|2004|11|01|df=yes}}<ref>{{cite web |url=http://www.w3.org/TR/2004/WD-ttaf1-dfxp-20041101/ |title=Timed Text (TT) Authoring Format 1.0 – Distribution Format Exchange Profile (DFXP)|accessdate=2015-02-16}}</ref>

| latest_release_date = {{start date and age|2015|01|31|df=yes}}

| genre = [[Timed text]]

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=== SMPTE-TT ===

This profile extends the full DFXP and alsowith requiresthree theSMPTE-specific supportelements ofaimed threeat SMPTElegacy formats. Interoperability with pre-existing and regionally-specific features:formats (such as CEA-708, CEA-608, DVB Subtitles, and

WST (World System Teletext)) is provided by means of [[tunneling]] data or bit map images and adding necessary metadata.<ref>{{cite web | url=https://www.smpte.org/sites/default/files/st2052-1-2010.pdf |title=SMPTE Timed Text Format (SMPTE ST 2052-1:2010) |date=3 December 2010}}</ref>

* #data

* #image

* <code>#data</code> – [[Base64]] encoded [[blob| binary data]] stream

* #information

* <code>#image</code> – [[Base64]] encoded transparent [[PNG]] images

* <code>#information</code> – Metadata

== References ==