Autoplay plugin has three options:
1. autoplay
Type: Boolean
Default: false
Autoplay.
2.autoplayTimeout
Type: Number
Default: 5000
Autoplay interval timeout.
3. autoplayHoverPause
Type: Boolean
Default: false
Pause on mouse hover.
Example
var owl = $('.owl-carousel');
owl.owlCarousel({
    items:4,
    loop:true,
    margin:10,
    autoplay:true,
    autoplayTimeout:1000,
    autoplayHoverPause:true
});
$('.play').on('click',function(){
    owl.trigger('play.owl.autoplay',[1000])
})
$('.stop').on('click',function(){
    owl.trigger('stop.owl.autoplay')
})