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Published 20 hours ago • verified publisher icon digital-preservation

ADTS and MP3 clashes

Open Dclipsham opened this issue 8 months ago • 1 comments

The attached file is the output of a Real Audio -> MP3 migration, using FFMPEG (package ffmpeg-5.1.4-1.el9) using a super basic ffmpeg -i <inputfile.ra> <outputfile.mp3> command line conversion.

The file currently identifies as fmt/1812 ADTS, because there is an 0xFFF041 sequence within 2045 bytes of the ID3 tag, so it pattern matches Audio Data Transport Stream sig.2 variant, and fmt/1812 has priority over fmt/134 MP3. The fmt/1812 identification is a false positive and it should identify as fmt/134 MP3.

I don't have an immediate solution and am curious if @thorsted has any thoughts...?

fmt-404_RealAudio_44_mp3.zip

Dclipsham avatar Jun 05 '24 13:06 Dclipsham