RTP Payload Format for 3rd Generation Partnership Project (3GPP) Timed Text
3GPP
3GPP timed text
streaming
real-time streaming
titling
decorated text
scrolling text
karaoke
hyperlinked text
highlighted text
blinking text
highlight color
text delay
text style
text box
text wrap
text sample
sample descriptions
modifier boxes
UTF-8
UTF-16
This document specifies an RTP payload format for the transmission of 3GPP (3rd Generation Partnership Project) timed text. 3GPP timed text is a time-lined, decorated text media format with defined storage in a 3GP file. Timed Text can be synchronized with audio/video contents and used in applications such as captioning, titling, and multimedia presentations. In the following sections, the problems of streaming timed text are addressed, and a payload format for streaming 3GPP timed text over RTP is specified. [STANDARDS-TRACK]