How can I customize the video player on android?

Question

Android

Good afternoon.
It is necessary to add the output of two subtitles in different languages ​​in the video player on android, plus add custom buttons: increase / decrease fonts, increase / decrease playback speed, etc.
How it is better to implement it?
I myself think in the direction of ExoPlayer and add my own textviews and buttons on top of the player, but I would like to hear advice, since I myself am not strong in android.