# ffmpeg -f lavfi -i sine -t 10ms test.mp3
/test.mp3:
> fq -d mp3 '.headers[0].magic == "ID3"' /test.mp3
true
> fq -d mp3 '.headers[0].version == 4' /test.mp3
true
> fq -d mp3 '.frames[0].header.protection == true' /test.mp3
true
> fq -d mp3 '.headers[0].flags + {}' /test.mp3
{
  "experimental_indicator": false,
  "extended_header": false,
  "unsynchronisation": false,
  "unused": 0
}
> fq -d mp3 '._unknown' /test.mp3
false
> fq -d mp3 '._format' /test.mp3
"mp3"
> fq -d mp3 '.headers[0].magic._format' /test.mp3
null
> fq -d raw '._bytes | string'
"abc\n"
stdin:
abc
> fq -n "{a: 123, b: []} | debug"
{
  "a": 123,
  "b": []
}
stderr:
["DEBUG",{"a":123,"b":[]}]
> fq -n options
{
  "addrbase": 16,
  "bitsformat": "snippet",
  "bytecolors": "0-0xff=brightwhite,0=brightblack,32-126:9-13=white",
  "color": false,
  "colors": "array=white,dumpaddr=yellow,dumpheader=yellow+underline,error=brightred,false=yellow,index=white,null=brightblack,number=cyan,object=white,objectkey=brightblue,string=green,true=yellow,value=white",
  "compact": false,
  "decodeprogress": false,
  "depth": 0,
  "displaybytes": 16,
  "joinstring": "\n",
  "linebytes": 16,
  "raw": false,
  "rawstring": false,
  "repl": false,
  "sizebase": 10,
  "unicode": false,
  "verbose": false
}