The styling information associated
with the closed-caption track is abstracted by the TextFormat interface.
This class encapsulates closed-caption styling information such
as the font type, size, color, and background opacity.
Closed caption styling options
The PSDK allows you to specify several caption styling options. These settings override any style options in the original captions.
Caption formatting samples
Also refer to the PMPDemoApp, which includes these operations in the scrub-bar controls.