Re: Needed: Performance Tips

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Hello,

The OV511 uses a proprietary compression algorithm which is not implemented
in linux driver because OmniVision (www.ovt.com)doesn't want to release the
specs.
This compression is working in Windows.

Perhaps you can also write Omnivision to release their algorithm
(OmniCE) to the linux community.

Francois.

-----Message d'origine-----
De: Devin <dsc@xxxxxx>
À: video4linux-list@xxxxxxxxxx <video4linux-list@xxxxxxxxxx>
Date: mardi 16 janvier 2001 5:30
Objet:  Needed: Performance Tips


>Hello,
>
>I have a OV511 based web cam, and I have gleaned code from wherever
possible
>to see how to read it.
>
>Its functional, but the performance is lousy.  In 640 - 480 mode I get ~1
>picture a second.  320 x 240 ~3.5 fps.
>
>The windows software performs much better.
>
>I've tried both file IO and  mmap, but I get about the same results.
>
>Has anyone got this working better?  Hints?
>
>I'll gladly share my simple little viewer I wrote from Nano-x.
>
>-- Devin
>
>
>
>_______________________________________________
>Video4linux-list mailing list
>Video4linux-list@xxxxxxxxxx
>https://listman.redhat.com/mailman/listinfo/video4linux-list
>





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