One thing that might be useful is that jpeg files have 'magic bytes'
at the start and end.
For jpegs, they are (enclosed in angle brackets)
<ˇÿ> at the start
<ˇŸ> at the end
(hope these come through email encoding ok)
More info here:
http://en.wikipedia.org/wiki/Magic_number_(programming)
Best,
Mark
On 23 Jan 2008, at 23:30, Richard Miller wrote:
Brian,
This is the header:
-----------------------------22007350812635
Content-Disposition: form-data; name="upfile"; filename="we10_1.jpg"
Content-Type: image/jpeg
I used "binfile" and have been using a Rev script to discard the
header and end data. I am reading directly from the .jpg file into
a variable in Rev and doing all the processing in that variable
before writing it to a new .jpg file. Still, there are some "funky"
characters appearing throughout the file.. something on the order
of 30 bytes in a 12k file (and they are there before I do anything
in Rev).
Thanks.
Richard
On Jan 23, 2008, at 6:10 PM, Brian Yennie wrote:
Richard,
Can you post the exact headers that you are getting? For example:
Content-Type: image/jpeg
Content-Transfer-Encoding: binary
You may have to focus on the encoding portion to make sure you are
decoding the data properly. A couple other notes:
* Once you have the correct data in a variable, you should be able
to just write it to a file using "binfile:". Be sure NOT to use
the ordinary "file:" URL since you definitely have binary image
data and not text.
* When you remove the MIME headers (the funky numbers and Content-
headers), are you doing it manually with a text editor? If so, you
might be introducing the funny characters yourself by accident.
Better to make sure these are removed by script if possible.
Hope that helps a bit.
- Brian
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