Update to ExoPlayer 2.12.3#5457

Merged

Stypox merged 2 commits intoTeamNewPipe:devfrom

Redirion:exo123

Mar 18, 2021

Commits on Feb 16, 2021

Update to ExoPlayer 2.12.3

Robin
authored and
Stypox
committed
Improve code style and fix some warnings
Stypox
committed