[Bf-committers] .blend magic number & MIME type
Jeff Harmon
jharmon at colorhythm.com
Thu Mar 17 11:11:27 CET 2011
i work on resourcespace, an open source digital asset management
application that already supports the previewing of Blender files. we
are working on supporting metadata and recognizing the file type.
http://resourcespace.org
we are contructing a "magic number" database that will assist in
automatically recognizing file types. this "magic number" is a unique
byte sequence to use for recognizing the file (and the offset from the
start of the file where it occurs -- must be within the first 1024
bytes). this sequence may contain a range of values. for example, the
BZ2 pattern is 'BZh[1-9]\x31\x41\x59\x26\x53\x59', which means the ASCII
string "BZh", followed by an ASCII character between "1" and "9",
followed by the hex bytes 31 41 59 26 53 59. (for a total of 10 bytes,
which is a reasonably strong pattern.)
can anyone provide a magic number for .blend files?
also, did anyone end up registering the MIME type
"application/x-blender" with the IANA? even if not, is that the one we
should use?
thanks!
- J
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