debug info youtube player

{
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  "docid": "8JGFKmPrFF8",
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  "euri": "",
  "lact": 2,
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  "vm": "CAEQARgE",
  "volume": 100,
  "c": "WEB",
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  "cplayer": "UNIPLAYER",
  "cbr": "Chrome",
  "cbrver": "62.0.3202.75",
  "cos": "Macintosh",
  "cosver": "10_11_4",
  "hl": "en_US",
  "cr": "AR",
  "len": "228.981",
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  "afmt": "251",
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  "vd": "228.981",
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  "vbu": "0.000-69.333,",
  "vpa": "false",
  "vsk": "false",
  "ven": "false",
  "vpr": "1",
  "vrs": "4",
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  "vec": "null",
  "vvol": "1",
  "totalVideoFrames": 722,
  "droppedVideoFrames": 2,
  "lct": "23.772",
  "lsk": false,
  "lmf": false,
  "lbw": "1936172.810",
  "lhd": "0.032",
  "lst": "261.086",
  "laa": "itag=251,seg=6,range=1018758-1195798,time=60.0-70.0,off=0,len=177041,end=1",
  "lva": "itag=247,seg=12,range=5562116-6075297,time=64.0-69.3,off=0,len=513182,end=1",
  "lar": "itag=251,seg=7,range=1195799-1364868,time=70.0-80.0,off=0,len=169070,end=1",
  "lvr": "itag=247,seg=12,range=5562116-6075297,time=64.0-69.3,off=0,len=513182,end=1",
  "lvh": "r1---sn-uxaxjxougv-x1xk",
  "lab": "0.000-70.001,",
  "lvb": "0.000-69.333,",
  "ismb": 6390000,
  "relative_loudness": "-1.229",
  "optimal_format": "720p",
  "user_qual": "hd720",
  "debug_videoId": "8JGFKmPrFF8",
  "0sz": false,
  "op": "",
  "yof": false,
  "dis": "",
  "cgr": true,
  "debug_playbackQuality": "hd720",
  "debug_date": "Thu Nov 02 2017 09:04:04 GMT-0300 (ART)"
}