When using KWIKplayer, you can assign unique ID to your player when construcing it.
mediaid is used to track your player through analytics as well as other uses.
mediaid takes a string. In the example below we assign to our new player a mediaid of "my_unique_id".
<script>
...
mediaid: "my_unique_id", //our own unique ID that we gave to the player
sources: [ //video sources
{file:"https://clvod.itworkscdn.net/itwvod/smil:itwfcdn/admin/515002-R204MDrB22W6kG8.smil/playlist.m3u8"},
{file: "https://clvod.itworkscdn.net/itwvod/smil:itwfcdn/admin/515002-R204MDrB22W6kG8.smil/manifest.mpd"},
{file: "https://clvod.itworkscdn.net/itwvod/smil:itwfcdn/admin/515002-R204MDrB22W6kG8.smil/Manifest"}],
...
</script>