for android developers who use rxjava could u plea...

# rx

[am414]

for android developers who use rxjava
could u please help me
how I can convert live data result into rxjava2 stream as Observable to use its result into filter operator
??

fun getAllFavMoviesIDs(): Observable<ArrayList<Int>> {
        val ids = arrayListOf<Int>()
         favVM.favObservable!!.observe( this, Observer { favMovies ->
        //collecting ids 
        } )

        return Observable.just(ids)
    }