Restrictions of Teletext to DVB Subtitles Translation
1. The VBI data supported is Presentation Level 1 of ETS 300 706, version 1.2.1.
2. Languages supported are restricted by Presentation Level 1, limited by codes
within the data stream, and by character sets available for the conversion into
pictures.
3. The DVB subtitle output is standardized in ETS 300 743, and the conversion
process supports version 1.4.1.
4. Only 576i25 SD-SDI is supported as an input video format.
Setting Up Teletext to DVB Subtitle Translation
1. Set up an encoding service according to section 3.7.5.
2. Add the main video component as described in section 3.7.5, and any other
components as required.
3. From the Inputs widget, select and drag the component Video 1 DVB Subtitles
Stream 1, and add it to the service, as shown below.
Figure 3.42 Adding DVB Subtitles Component
4. In the Outputs widget, Select the Video component, and then select the
Properties tab VBI.
5. For each line known to contain Teletext data, select Teletext System B from the
drop-down box on that line. This must be completed for both fields 1 and 2.
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