Hi,
--- On Fri, 7/9/10, P F <public_fil...@yahoo.com> wrote:
>
> I have ordered a camera which uses the gspca driver
> (Logitech QuickCam
> Communicate STX), so hopefully that should give me
> something to compare
> against. The gscpa maintainer long ago noted memory
> corruption on ARM
> platforms
> (http://sourceforge.net/mailarchive/forum.php?thread_name=200512301104.13088.mxhaard%40magic.fr&forum_name=spca50x-devs),
> so maybe he will have some insight.
>
I received the non-UVC Logitech camera (it uses gspca_zc3xx) and re-ran my
tests. It experiences corruption identical to the two UVC cameras.
In trying to better understand the corruption, I split a corrupted JPEG
into 3 grayscale PNMs consisting of its 3-components (Y, Cb, Cr).
Interestingly, each component shows corruption, they all start at the same
macroblock, and the corruption manifestation is slightly different in each
component. To me it seems there is a pattern.
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