Third party video player FB

We use a third party video player, Kaltura. Even though FB says we can use third party players we have had no success finding any documentation on how to code it.
Can you provide any clarity on how we should start? It this part of the transformer process?
Within our WP post the video is a shortcode looking like this:[kaltura-widget uiconfid=”29279321″ entryid=”1_dvj05lid” width=”640″ height=”451″ /]

The debug information errors in your plugin show none of this is getting to FB.

<p><script src=”http://www.kaltura.com/p/1679301/sp/167930100/embedIframeJs/uiconf_id/29279321/partner_id/1679301″></script></p&gt;
<div id=”kaltura_player_b08902f7ffe4fcf78e537c1c32184321_wrapper” class=”kaltura-player-wrapper”>
<div id=”kaltura_player_b08902f7ffe4fcf78e537c1c32184321″ style=”width:640px; height: 461px; float:;”>
Video Management, Video Hosting, Video Streaming, Video Platform
</div>
<div class=”kaltura-powered-by” style=”width: 640px”>
<div>
Video Player by Kaltura
</div>
</p>
</div>
</div>
<p><script>
kWidget.embed({
“targetId”: “kaltura_player_b08902f7ffe4fcf78e537c1c32184321”,
“wid”: “_1679301”,
“uiconf_id”: 29279321,
“entry_id”: “1_dvj05lid” });
</script></p>

https://ww.wp.xz.cn/plugins/fb-instant-articles/