The spec technically allows to mark adaptation sets with the switching
property if they allow seamless switching with non-overlapping
segments. This is typically only used for compatible content (e.g.
different codecs), but the spec allows it to be used for other
content as well (e.g. different languages, roles). ExoPlayer's concept
of a TrackGroup only allows formats with the same language and role
flags to be merged, so we should check that before merging.
Issue: androidx/media#2222
PiperOrigin-RevId: 736564055
(cherry picked from commit d37f05238a2d8b45ea2e5f4ac026084b917f30df)
24b3bf21b8