Yves Rutschle wrote:
> Hint: when using "reply" to save yourself typing the address of the
> list, try to choose a new subject line. Preferably, something related
> to the subject.
>
My apologies. I realised too late that I did not change the subject
>
> > We are working with the SA1110 for image processing applications. We
> > have come across the performance library of Intel. Although the
> > primitives in the library give good performance, they are very much
> > oriented to implementing image decompression. Is anybody out there
> > working in image compression primitives for the SA and
> > willing to share
> > experiences? In particular, is any forward DCT application available
> > somewhere?
>
> libjpeg compresses and decompresses jpeg, so it definitely has both
> DCT and IDCT. It actually comes with 3 different algorithms, one
> integer DCT, one fast integer DCT (faster but not as good compression),
> and one FP DCT (don't even think about it on SA1110).
>
> I happen to have timed decompression last monday on SA1110 running at
> 200Mhz, decompression of a jpeg 225x145 took about 30ms.
>
Do you happen to know if your image was black and white or colour? if it
were colour, what was the colour subsampling? (if you send the compressed
image to me I can figure out myself).
>
> The library source is available from ftp.uu.net/graphics/jpeg
>
I assume that this code is not specifically optimised for the SA
instruction set, is it?
Thanks for the information.
Paco.
--
-----------------------------------
Paco Gomez-Molinero
Technical Director
Visual Tools S.A.
Xaudaro, 13 bis
28034 Madrid
SPAIN
Tel: +34 91 7294844
Fax: +34 91 3585236
email: [EMAIL PROTECTED]
http://www.vtools.es/
_______________________________________________
http://lists.arm.linux.org.uk/mailman/listinfo/linux-arm
Please visit the above address for information on this list.
