fontFamily

Specifies the font family to include in the font data attached to the EBU-TT captions. Valid only if style_control is set to include. (If style_control is set to exclude, the font family is always set to monospaced.) Enter a list of font families, as a comma-separated list of font names, in order of preference. The name can be a font family (such as Arial), or a generic font family (such as serif), or default (to let the downstream player choose the font). Or leave blank to set the family to monospace. Note that you can specify only the font family. All other style information (color, bold, position and so on) is copied from the input captions. The size is always set to 100% to allow the downstream player to choose the size.