We've only been doing this testing so far on OS X. Looks like you were
doing it on Windows. Might work fine there.
Richard
On Jan 12, 2005, at 1:49 PM, Alex Tweedly wrote:
Richard Miller wrote:
Looking for the simplest and quickest solution to a compression
problem. The goal is to take 50 jpeg images (highly compressed)
starting on a Mac, move them to our directory on a hosted web server,
then have them downloaded and displayed on a Windows XP machine.
Transmission time (over the Internet) is a very big factor here.
Here's what we've done so far:
1. Started with 50 jpeg images.
2. Put them into 50 custom properties of a holding stack.
3. Compressed the stack using the RR compress command.
4. Decompressed that stack using the decompress command.
5. Tried to open that stack, but it is always reported as corrupted.
6. The size of the decompressed stack is ALMOST the same as the
original stack, but a few bytes short.
Also tried this:
1. Took one of these jpeg images.
2. Compressed it with RR compress command.
3. Decompressed it.
4. Tried to open it. It is always corrupt.
5. The size of the decompressed file is the same as the original file
size, but in looking at the data in TextEdit, it is readily seen a
few characters have shifted places in the first few lines.
Suggestions? What's going on here? Thanks.
The overall description mentioned various different machines - but the
step-by-step didn't. Is this testing all on one machine ?
I tried this script
on mouseUp
local t, t1
put URL ("binfile:d:/Our Documents/Alex/RunRev/Photo/IMGP0633.JPG")
into t
put the number of chars in t after msg
put compress( t ) into t1
put " " & the number of chars in t1 after msg
put decompress(t1) into t
put " " & the number of chars in t & cr after msg
put t into URL ("binfile:d:/Our
Documents/Alex/RunRev/Photo/IMGP0633-x.JPG")
end mouseUp
and verified that it the output JPG works fine. Might be worth you
trying it (with suitable file name, of course :-) and then narrowing
in on any differences between it and your own test script.
-- Alex.
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