[Ffmpeg-devel] Is 0xffff a valid mpeg audio header prefix?

Michel Bardiaux mbardiaux
Mon Apr 24 11:31:13 CEST 2006


Nico Sabbi wrote:
> $Subj.
> 
> According to the drafts I have 0xffff corresponds to mpeg audio1 layer1 
> with protection bit set,

According to official ISO/IEC 11172-3:1993(E), this is correct - except 
there is no explicit byte alignment requirement for the 12-bits audio 
syncword.

> but I can't convince myself that it's not stuffing.

Its definitely not stuffing.

> Is it safe to discard such sequences?

No.

HaND,
-- 
Michel Bardiaux
R&D Director
T +32 [0] 2 790 29 41
F +32 [0] 2 790 29 02
E mailto:mbardiaux at mediaxim.be

Mediaxim NV/SA
Vorstlaan 191 Boulevard du Souverain
Brussel 1160 Bruxelles
http://www.mediaxim.com/





More information about the ffmpeg-devel mailing list