[M4IF Technotes] Start code

[Dokic, Miroslav]

Clover,
MP3 and AAC do not have the start_codes in the form of 0x000001,
rather the audio frame starts with 12 bit field 0xfff. 
This is true for both MP3 and AAC. More bits after 0xfff are
needed
to figure out is it MP3 or AAC (or MPEG-1/2 Layer I or II for
that matter) 
Best regards,
Miroslav
-----Original Message-----
From: cloverleafland   mail.hongkong.com
[mailto:cloverleafland   mail.hongkong.com]
Sent: Tuesday, June 24, 2023 1:31 AM
To: technotes   lists.m4if.org
Subject: [M4IF Technotes] Start code
Dear all,
Would any one know whether MP3 or AAC have start_code? if yes,
what are the start code? Thanks a lot.
regards,
clover
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