Rendering video assets in V3

Hi, im trying to render a video from my uploaded assets but I can't get the file url to echo to the page. Currently, all I get shown is something that looks like [{}] in the video file url path.

My current code looks like

{{ if item_video }}
  <video class="c-card_image" width="320" height="240" controls>
    <source src="{{ item_video }}" type="video/mp4">
    Your browser does not support the video tag.
  </video>
{{ else if secondary_image }}
  <picture class="c-card_image">
    <img data-src="{{ glide:secondary_image width="982" height="1253" fit="crop_focal" }}" class="lazyload" width="746px" height="952px" />
  </picture>
{{ else }}
  <picture class="c-card_image">
    <img data-src="{{ glide:feature_image width="982" height="1253" fit="crop_focal" }}" class="lazyload" width="746px" height="952px" />
  </picture>
{{ /if }}