Supported source captions and output captions in a captions-only output container

This table describes the caption formats that can be included on their own in an output. With this option, the container is always a raw container that contains only the captions (video would be in another container that may be a raw container or may be some other type).

If you have one of the source caption formats listed in the first column – regardless of the source container – you can convert it to an external captions file and include it in a raw container that contains only that captions file.