audio: MPEG ADTS checks

[karlhiramoto]

Check header that matches MPEG ADTS

References:

• https://wiki.multimedia.cx/index.php/ADTS
• https://github.com/file/file/blob/master/magic/Magdir/animation#L496

[karlhiramoto]

trid is another tool that also detects as mpeg2

trid fixture/fixture-faac-adts.mp2

TrID/32 - File Identifier v2.24 - (C) 2003-16 By M.Pontello
Definitions found:  8809
Analyzing...

Collecting data from file: fixture/fixture-faac-adts.mp2
 66.6% (.AAC) MPEG-2 LC-AAC Audio (2000/1)
 33.3% (.MP3) MP3 audio (1000/1)

[karlhiramoto]

Note. build failure is a lint issue also occurs on the current master branch, due to dependency update

[mifi]

Thanks!