[Buildroot] [PATCH] jpeg-turbo: new package
Murat Demirten
mdemirten at yh.com.tr
Mon Jun 4 08:41:18 UTC 2012
Yes, jpeg-turbo is source compatible with libjpeg and some distributions
(including Ubuntu, Fedora, Gentoo) start to ship it for the default libjpeg.
Please note that, jpeg-turbo and TurboJPEG-IPP is not the same, TurboJPEG
has some disadvantages on new 64 bit systems and it's development stopped.
2012/6/4 Peter Korsgaard <jacmet at uclibc.org>
> >>>>> "Murat" == Murat Demirten <mdemirten at yh.com.tr> writes:
>
> Murat> Hi,
>
> Murat> Your solution will work. Adding a PROVIDES mechanism need more
> Murat> work (like the what is provides-default of jpeg?). I'm not
> Murat> changing anything in patch now. I'm not sure about that to add a
> Murat> generic PROVIDES mechanism because it will increase the
> Murat> buildroot complexity if only used by jpeg-turbo. When we see
> Murat> that there are more packages like this, we have to add generic
> Murat> PROVIDES mechanism.
>
> Murat> jpeg-turbo's performance gain depends to type of images you're
> Murat> working on too. We tested it on mips and arm platform (yes, it
> Murat> make difference on mips too) and it is %30-%50 times faster than
> Murat> libjpeg (I don't have the exact results now). It is a big
> Murat> difference when you have to make lots of jpeg decompression in
> Murat> your program.
>
> Is there any reason to NOT use jpeg-turbo? Isn't it source level
> compatible with the "normal" libjpeg?
>
> --
> Bye, Peter Korsgaard
>
--
Murat Demirten
Genel Müdür
http://www.yh.com.tr
(212) 292 04 46 - 113
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