How to bind an angular service to an external asynchronous module?

Question

JavaScript

There is an angular application and a separate module, suppose a video player flash library

FlashVideo.onTimeChange = function(currentTime){ /* doSomething */ }

What is the right way to implement this in terms of angular architecture and performance? The actions in the function are simple, but somehow tied to the angular application, plus the function is called quite often (several times per second).
So far, a few ideas have come up, but they all seem like crutches to me, or bad in terms of performance.
1) use $watch on $rootScope
2) notify via promise
3) $emit, $broadcast events

Answer 1

use $watch on $rootScope

at you there event is launched, instead of the state of object changes. Stop shoving watches everywhere and everywhere
He's not for that. It is to notify that there will be a resolve soon.
exactly. You can make your own isolated scope to drive events only between two components, without affecting the rest of the system.

Answer 2

In addition to Sergey Protko 's answer - use throttling on the event

Answer 3

Do you need to update something in the application every time you call this function?
Is it possible to call digest not with every call, but for example once a second?