Help :(

Post by **Tank Program** » Wed Apr 13, 2005 5:47 am

iceman wrote:that avatar took forever to load and whats this about 700k ??? its 9.14mb ! grrrrr

From the upload thingy: " Filesize: 699.45 KB." It's 700k, but I still think that's just a weee bit too big...

iceman · Post by **iceman** » Wed Apr 13, 2005 12:55 pm

well it might say 699.... but if I right click on it and show propeties its > 9mb, also if I save it its > 9mb and judging how long it took well

i dont know whats going on ????????????? this has never happened before ??????????????????????????????????????????

Sabarai · Post by **Sabarai** » Wed Apr 13, 2005 1:58 pm

Iceman: <see the pic>

I won't take it as my signature, but here's the proof it actually is just 699 or 700 kb...

Or can anyone edit it or something that it's only like 100k or something???

Website · Post by **Z-Man** » Wed Apr 13, 2005 2:55 pm

I also explicitly downloaded the animation. It's 9 Mb on my HD, too, and Konqueror says so during the download.

Code: Select all

-rw-r--r--  1 moos users 9593000 2005-04-13 15:27 t_coolasfuck0pc.gif

which is really weird, because it's just a 160x120x2 883 frames animation which is a little over 2 Mb uncompressed.

Hmm. Have you heard about the gif loading bug in most old Unix and Windows systems that was fixed half a year ago? The one that allowed you to execute arbitrary code? Better check if your system is patched...

Edit: when I load the animation in GIMP and save it again, it boils down to about 700kb as it should. I suspect a bug in the phpBB board code that just adds a huge stream of useless bytes to the image, but that's just a wild guess.

EditEdit: Mozilla crashes when I try to do anything with the image, but it shows 9Mb as the size when I ask it about the image properties, too. ( 1 min later: ) Ok, managed to download it without a crash, with 700kb in size. Weird really.

Jonathan · Post by **Jonathan** » Wed Apr 13, 2005 2:59 pm

716239 bytes here...
(699.4521484375 KB with K=1024)

Sabarai · Post by **Sabarai** » Wed Apr 13, 2005 3:26 pm

Hmmmmm... Could there be any way the web loads it and shows it as 700kb??? since it's obviously not 700kb now, my msn crashes if i try to add it as emoticon (yes you can add motioning pictures)

Post by **dlh** » Wed Apr 13, 2005 3:37 pm

When I download it, it turns into 9 MB too.

Code: Select all

-rw-r--r--  1 nemo  staff  9M  12 Apr 11:09 t_coolasfuck0pc.gif

odd...

iceman · Post by **iceman** » Wed Apr 13, 2005 3:43 pm

exploit hmmm didnt consider that

i'll dust off my trusty old hex editor and disassembler and let you know whats in there

Jonathan · Post by **Jonathan** » Wed Apr 13, 2005 3:44 pm

I found it! The actual file is 716239 bytes but the preview made by this board is 9593000 bytes!

Website · Post by **Z-Man** » Wed Apr 13, 2005 3:51 pm

Right. First clicking on the attachment, then saving it from the new window gives me a moderately sized picture, too.

Lackadaisical · Post by **Lackadaisical** » Wed Apr 13, 2005 4:11 pm

yeah, there has been more problems with thumbnailing animated gifs by phpbb before.

@nemo: you could probably achieve the 'lite' effect with some kind of phpbb template, and i guess there probably is one out there.. somewhere.

iceman · Post by **iceman** » Wed Apr 13, 2005 4:26 pm

ok its prolly that the phpbb re-renders every frame in the preview animation to its full size 160x120 where as the original gif uses dirty frames

dirty frames: 1st frame stored as full size including every pixel, following frames are cropped to an area to only include the pixels that changed from the previous frame reducing the storage needed

iceman · Post by **iceman** » Wed Apr 13, 2005 4:30 pm

im still gonna check into it just to make sure

Jonathan · Post by **Jonathan** » Wed Apr 13, 2005 4:55 pm

Seems to me that it uses 8 bpp instead of 1.

Sabarai · Post by **Sabarai** » Wed Apr 13, 2005 5:09 pm

Jonathan wrote:I found it! The actual file is 716239 bytes but the preview made by this board is 9593000 bytes!

WOO GO DUTCH