Decryptor Element Seeking

MartinK martin.kohn at fortiumtech.com
Tue Mar 4 01:26:50 PST 2014


Thanks Nicolas and Sebastian for your replies.

I have some further information which may be useful. 
The current version of the decryptor just inverts every byte (not the
header). Obviously that will change later.
Also, I tried a test which altered the design as follows:
Instead of having an extra header block preceding the encrypted video
content, I overlayed the same header over the start of the encrypted file so
that the encrypted file is the same size as the original (including the
header). The bytes that were overlayed by the header were hard-coded in an
array. Seeking with this arrangement works perfectly. It can seek to any
location. Obviously I cannot use this approach for real though!


Regards,  Martin



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