Home/ Questions/Q 4598084
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-21T23:20:55+00:00

I understand that the MP3 file format essentially consists of two segments, id3 metadata+audio

  • 0

I understand that the MP3 file format essentially consists of two segments, id3 metadata+audio frames. How can I read in binary form, all of the id3 segment and all of the audio frames as two binary blobs? I’m looking to simply perform a hash calculation on the metadata and the audio as two separate units in a file. How can I determine where the “split point” is in the file?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    From the ID3 tag specification:

    +-----------------------------+
|      Header (10 bytes)      |
+-----------------------------+
|       Extended Header       |
| (variable length, OPTIONAL) |
+-----------------------------+
|   Frames (variable length)  |
+-----------------------------+
|           Padding           |
| (variable length, OPTIONAL) |
+-----------------------------+
| Footer (10 bytes, OPTIONAL) |
+-----------------------------+

    Note that there are several ID3 tag versions out there.

    Specification: http://www.id3.org/id3v2.4.0-structure

    • 0