Fwd: [Libjpeg-turbo-users] jpeg-9, API/ABI compatibility, and the future role of this project

Michael Stahl mstahl at redhat.com
Wed Jan 16 12:02:57 UTC 2013


On 15/01/13 20:04, Xose Vazquez Perez wrote:
> On 01/15/2013 01:01 PM, Adam Tkac wrote:
> 
>> Another interesting thread is
>> http://sourceforge.net/mailarchive/message.php?msg_id=30352453
>>
>> We are currently discussing drop of the
>> https://fedoraproject.org/wiki/Features/libjpeg-turbo-jpeg8-ABI feature because
>> SmartScale encoding (only reason of the jpeg7 and jpeg 8 ABI bumps) was rejected
>> by ISO and actually doesn't bring any benefit over widely used png/webp codecs.
>>
>> So Fedora will probably stick with old jpeg6 API/ABI unless IJG maintainer
>> reveals some new facts about SmartScale. All facts are currently against
>> SmartScale (image quality/size, compression/decompression speed).
> 
> Upstream Tracker shows 0% of binary compatibility with previous
> releases: http://upstream-tracker.org/versions/libjpeg.html
> 
> I hope other distributions don't use that release.

FWIW i'm afraid i've had to build jpeg8 from source already to get a
certain binary [1] built on Ubuntu to run on Fedora 17...

[1] actually a git repo full of binaries:
    https://wiki.documentfoundation.org/Bibisect



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