Comment Re:An unfortunate hack (Score 3, Informative) 424
It doesn't break such code -- if that code is expecting png datastreams one after the other, then it won't find a PNG header after the first one. The "bunch of user chunks" after the IEND are simply an entire PNG, minus the 8-byte PNG header, hardly random chunks. Finally, EOF is mentioned nowhere -- the number of frames that are expected to follow is clearly specified as part of the anIm chunk; EOF before this would be an error/incomplete data condition, and nothing more.
