|TIFF and LibTiff Mailing List Archive|
LibTiff Mailing List
2004.04.23 13:16 "Re: Large TIFF files", by Phillip Crews
At 08:45 AM 4/23/2004 , you wrote: > Chris Cox wrote: > > > We don't have to start over - but we have learned some things since the > > original TIFF spec. was written. > > I think that it's important that any new large file support remain as > close to the old spec as possible, so as to minimise the work needed for > application support. Most important is that any file which does not in > fact exceed 2GB must be readable by old code. > > Once you open the box and start making improvements which aren't backward > compatible, it's necessary to ask whether TIFF is the right starting > point, rather than some other image format. I think they should be considered a separate file type, with a separate signature. The organization of the library may be a difficult decision: choosing whether the library automatically creates a BTIFF when the data exceeds 2 or 4 Gb and automatically recognizes TIFF vs BTIFF, or whether a separate (but quite similar) API is used.