[Mp4-tech] DRM MPEG-4

[bfelts envivio.com]

Actually, MPEG-4 systems has defined a whole section about DRM integration 
called IPMP. You will find two versions of IPMP: IPMP-H (IPMP "hooks" to plug a 
DRM solution) and IPMP-X (full support for DRM). IPMP-H is compatible with IPMP-
X. We have implemented IPMP-H in our plug-in for example.
You can also check www.isma.tv, which has defined full encryption and signaling 
for MPEG-4.
Best regards,
Boris Felts
Envivio.
> 
> In the MPEG-4 System, you can customize your own atoms by putting them as
> subtree of the atom "uuid". "uuid" is the only atoms allowing you to
> customize. So you can put your own DRM info under the "uuid" atom. Note
> that there may be multiple "uuid" atoms in one mp4 file. Also, you can put
> some encrypted keys there, e.g., the UUID/class id there to make other
> MPEG-4 decoder cannot decode your own DRM info. It depends how you utilize
> them. If you only want to do it in the m4v file, then the only possibility
> is to use the "userdata" segment. Check out the spec for more details.
> 
> On Fri, 24 Oct 2003, Jechiam Gural wrote:
> 
> > Hello,
> >
> > Does someone have a references available to DRM solutions targeting
> > MPEG-4,  i.e. experience with implementation of a vendor, cost of the
> > software, ( perhaps open source),  example project etc?
> >
> > Thanks,
> >
> > Gural
> >
> >
> > _______________________________________________
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> > Mp4-tech lists.mpegif.org
> > http://lists.mpegif.org/mailman/listinfo/mp4-tech
> >
> 
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