duration

number

The number of seconds the player was in this state. If this is the last entry in the list, the player is still in this state, so the duration will continue to increase.

state

string

The state the player entered. This could be 'buffering', 'playing', 'paused', or 'ended'.

timestamp

number

The timestamp the state was entered, in seconds since 1970 (i.e. Date.now() / 1000).