From: Jean-Francois Moine <moinejf@free.fr>
To: "Németh Márton" <nm127@freemail.hu>
Cc: Thomas Kaiser <thomas@kaiser-linux.li>,
V4L Mailing List <linux-media@vger.kernel.org>,
leandro Costantino <lcostantino@gmail.com>,
Hans de Goede <hdegoede@redhat.com>
Subject: Re: image quality of Labtec Webcam 2200
Date: Sun, 13 Sep 2009 09:20:15 +0200 [thread overview]
Message-ID: <20090913092015.485fdbcd@tele> (raw)
In-Reply-To: <4AA9F7A0.5080802@freemail.hu>
On Fri, 11 Sep 2009 09:09:20 +0200
Németh Márton <nm127@freemail.hu> wrote:
> You can find my results at
> http://v4l-test.sourceforge.net/results/test-20090911/index.html
> There are three types of problems: a) Sometimes the picture contains
> a 8x8 pixel error, like in image #9
> http://v4l-test.sourceforge.net/results/test-20090911/index.html#img00009
> b) Sometimes the brightness of the half picture is changed, like in
> images #7, #36 and #37
> http://v4l-test.sourceforge.net/results/test-20090911/index.html#img00007
> http://v4l-test.sourceforge.net/results/test-20090911/index.html#img00036
> http://v4l-test.sourceforge.net/results/test-20090911/index.html#img00037
> c) Sometimes the libv4l cannot convert the raw image and the errno is
> set to EAGAIN (11), for example image #1, #2 and #3
>
> Do you know how can I fix these problems?
The error EAGAIN is normal when decoding pac7311 images, because they
are rotated 90°. But this error should occur one time only.
I looked at the raw image #1, and it seems that there are JPEG errors
inside (sequences ff ff). There should be a problem in the pac7311
driver. Hans, may you confirm?
--
Ken ar c'hentañ | ** Breizh ha Linux atav! **
Jef | http://moinejf.free.fr/
next prev parent reply other threads:[~2009-09-13 7:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-11 7:09 image quality of Labtec Webcam 2200 Németh Márton
2009-09-11 18:17 ` Németh Márton
2009-09-12 0:43 ` leandro Costantino
2009-09-12 1:21 ` leandro Costantino
[not found] ` <c2fe070d0909111741l21120025v3f45eb8566d27c7a@mail.gmail.com>
[not found] ` <4AAB3CB5.7090106@freemail.hu>
2009-09-12 14:51 ` leandro Costantino
2009-09-12 18:26 ` Németh Márton
2009-09-13 7:20 ` Jean-Francois Moine [this message]
2009-09-13 11:00 ` Németh Márton
2009-09-13 14:42 ` leandro Costantino
2009-09-13 15:59 ` Thomas Kaiser
2009-09-13 18:50 ` Hans de Goede
2009-09-13 18:48 ` Hans de Goede
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