Am Dienstag, den 21.06.2011, 10:33 -0700 schrieb Carl Michal:
> Hi,
>
> I don't feel like I'm really near to solving this. The best I can say is
> that I think sometimes there may be a header missing. With the patch to fully
> disable FID, 640x480 and lower in YUV seem to work reasonably well.
> Nothing in MJPG is acceptable. I think this is because the driver does a
> much better job of dropping bad frames in YUV with the check for the
> correct frame length.
>
> I'm wondering if the camera is confused about its capabilities? It claims
> to be able to do 768x480, 1024x768, 1280x720, 1280x1024, and 1600x1200
> uncompressed at 30fps (and no other frame rates). Lower resolutions have
> a reasonable selection of frame rates - eg 640x480 lists 30, 25, 20, 15,
> 10 and 5fps. For 1600x1200 the bit rate listed (by lsusb -v) is 921600000,
> but isn't that way more the bus can do? This computer does have USB3
> ports, but the camera is handled by ehci_hcd.
>
> Could this be part of the problem?
this cam do many things in wrong/other way.
the question is, do we can work around the bugs it has?
There is a windows driver on dell website for this webcam, it use ms
uvcvideo driver but it use also some driver wich looks like proxy
between uvcvideo and the cam.
Can you confirm that it works well without driver on videos 7/Vista
(with native uvcvideo), if not it will be interesting to know what doing
this extra driver: filters bad frames or filters the settings?
--
Regards,
Alexey
_______________________________________________
Linux-uvc-devel mailing list
Linux-uvc-devel@lists.berlios.de
https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
