Differences between version 17 and predecessor to the previous major change of OV519WebCam.
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Newer page: | version 17 | Last edited on Friday, September 23, 2005 9:30:47 am | by IanMcDonald | Revert |
Older page: | version 16 | Last edited on Wednesday, September 21, 2005 1:00:17 pm | by IanMcDonald | Revert |
@@ -1,24 +1,11 @@
-The OV519 chip is used in some cheap webcams -
for example, from [DSE] (product code XH5096) sold as "Internet Camera with Microphone", as well in the Sony ~EyeToy.
+The OV519 chip is used in some cheap webcams for example, from [DSE] (product code XH5096) sold as "Internet Camera with Microphone", as well in the Sony ~EyeToy.
-This [USB] WebCam supports 640x480 resolution images at 15fps, and video at 25fps, according to the box.
-
-!Linux Support
-The 2.6 series LinuxKernel (as of 2.6.7 at least) come with support for [WebCam]s that use the similar OV511 chip, but not these [WebCam]s.
-
-The 'lsusb' program shows:
- 05a9:8519 ~OmniVision Technologies, Inc.
-
-However, there
is a driver (licensed under the [GPL]) that you can download
+There
is a driver (licensed under the [GPL]) that you can download
from http://alpha.dyndns.org/ov511/download.html#ov51x - the module will be called ov51x. It should work with 2.2, 2,4 and 2.6 kernels.
-
-The camera's built-in microphone is detected by the kernel's USB [ALSA] drivers, but it doesn't actually seem to work - a new sound device is registered (/dev/dsp1) but reading from this device doesn't do anything.
Unfortunately, these cameras serve images up in [JPEG] format only, and this behaviour will require application-level support. No webcam software for [Linux] seems to handle this (yet - at least for [V4L] version 1). The source code for the driver (linked above) comes with a small program that can grab and save [JPEG] images from the camera. JohnMcPherson has a modified version of this program that will display captured video in an X window -
grab the "showvideo" package from [our software archive|http://www.wlug.org.nz/archive/software/ov51x/].
-
-
-Best bet (for now) is to get a camera with better [Linux] support.
You can also code the decompression in the kernel space! Take a look at the decompression for ov518: it is very very close to JPEG decompression.
But there are patents about JPEG decompression and that is why - as far as I understand - the module doesn't handle JPEG decompression in kernel space..
But an individual that coded it for himself (and his friends ;) ) would not have to fear those patents... and the ov519 would work anywhere no mater with what app!