Support for multiple languages

If the source includes captions in multiple languages, you can include multiple languages in the output as follows:

• Embedded Passthrough. For any of the embedded source formats, if you specify embedded as the output format, then all languages that are in the input are included in the output. You can't remove any of the languages.

• Embedded In, Other Out. For any of the embedded source formats, if you are doing “embedded in, other out,” you can specify which languages to extract from the input.

• Teletext Passthrough. For teletext sources, if you specify teletext as the output, then all languages (pages) are included in the output. You can't strip out any languages. In fact, the entire teletext content is included in the output; you can't strip out any of the pages. Furthermore, teletext passthrough is supported only in TS outputs.

• Teletext In, Other Out. For teletext source, if you are doing “teletext in, other out,” you can specify which languages (teletext pages) to extract and which languages to include in an output.

• Any Other Combination. For all other sources, you always specify the language to extract from the input and the language to include in an output, regardless of the source format and output format.