Thanks for asking.
Can you please elaborate this part of the question
I don't have access to revolution slider.? Using Revolution Slider you can easily setup video to display top section of page. To install Revolution Slider you need to first validate the theme. I am sharing link to our validation guide https://theme.co/apex/forum/t/setup-product-validation/55.
After that all you need to do is install Revolution Slider and then create your first slide. Once that is done, you need to open the relevant page and under
Slider Settings Above Masthead select the slider you just created.