2020.08.16 13:51 "[Tiff] Disable Old JPEG in libtiff by default!", by Bob Friesenhahn

2020.08.16 14:41 "Re: [Tiff] Disable Old JPEG in libtiff by default!", by Toby Thain

In 1995 Adobe published DRAFT TIFF Technical Note #2 which abandoned the JPEG format described by TIFF 6.0. It is now 2020, which has provided plenty of time to stop using the deprecated/defunct format and convert existing files to the modern format.

The libtiff configure script enables support for reading old JPEG by default. I propose that the libtiff default should be to disable support for old JPEG.

While support for the deprecated old JPEG was substantially improved by libtiff 4.x (thanks to considerable effort by Joris Van Damme), support

Hi,

Without opining one way or the other on this, I am wondering if there exists a corpus of test data for "old jpeg" that a maintainer could refer to. That would seem to be a prerequisite for practical maintenance.

--Toby