{
    "id": "",
    "title": "",
    "thumb": "", //an image file
    "token": "",
    "subtitles": "", //a .vtt file
    "sources": [ //any number of sources, tested up to 4
        {
            "video": { //all sources should have the same set of resolutions
                "720":  "" //map a resolution to a video file
            },
            "poster": "", //an image file
            "playAudio": true //only one source should play audio
        }
    ]
}