Angular json errors

i have a video with json file contains the time and the name of each error and i want to display those errors at those times of errors when the video work

              <video width="100%" height="240" controls controlsList="nodownload" class="video">
                <source src="{{host+student.video}}" type="video/mp4">
                Your browser does not support the video tag.
              </video>
            </div>

Source: Angular Questions