Should use video file specified in video database instead of searching in file system

[petterreinholdtsen]

At the moment, the player ignore the files associated with a given video ID in the database, and instead search its local file system for something that can be used. It should use the file listed in the database instead.

The code in locate_media_by_id() is currently used to figure out which video file to play. Instead the API output for videofiles should be used. Here is an example:

curl --silent https://frikanalen.no/api/videofiles/?video_id=626056|jq .
{
  "count": 2,
  "next": null,
  "previous": null,
  "results": [
    {
      "id": 21541,
      "video": 626056,
      "format": 6,
      "filename": "626056/original/tv_gs_261.mp4",
      "old_filename": "",
      "created_time": "2018-11-12T07:37:03.689680Z"
    },
    {
      "id": 21540,
      "video": 626056,
      "format": 1,
      "filename": "626056/large_thumb/tv_gs_261.jpg",
      "old_filename": "",
      "created_time": "2018-11-12T07:37:03.604847Z"
    }
  ]
}

Note, in this case the broadcast format file is missing, so the video can not be played.

[petterreinholdtsen]

From today, the audio loudness measured for each video file is available. This should be used by the video player to adjust the playout volume.