mpegts: update documentation / defines
This updates some MPEG-TS related documentation and defines to be consistent, by making it up to date against the 2018 version of H.222 (the latest free version).
Also has some minor typo fixes.
This updates some MPEG-TS related documentation and defines to be consistent, by making it up to date against the 2018 version of H.222 (the latest free version).
Also has some minor typo fixes.