[FFmpeg-devel] [PATCH] lavc: Replace 181 magic number with ITU_T_T35_COUNTRY_CODE_US

[Marth64]

Hi,

Expanding on Devin's comment,

See the diagram I have created on page 3 of this deck showing the
digital caption embedding and this XDS stream visually:
https://docs.google.com/presentation/d/19_0EIol3xBy-ubyzHG-vw1y8OLOLOaJgHNlgkY2HsB4/edit#slide=id.g32866a10389_0_53

(Rest of the deck is a work-in-progress but thought this diagram would
be helpful)