Hi Filippo, On Monday 17 November 2008, Filippo Argiolas wrote: > Hi Laurent, > > A couple of users reported me a little issue with Cheese after > upgrading uvcvideo to the last changeset (62c88b326ecd). > As soon as they start cheese they get this error: > > libv4l2: error converting / decoding frame data: v4l-convert: error > parsing JPEG header: Not a JPG file ? > > It only happens once and doesn't seem anything fatal since cheese runs > fine with no noticeable issue. > Both users have a dell xps (m13xx?) with a " 05a9:2640 OmniVision > Technologies, Inc." webcam. > I forwarded their mails to Hans de Goede, thinking it may be something > related to libv4l, but he said, and I believe he's right, it probably > is a driver or an hardware fault. > He said that most likely the first frame sent by the webcam doesn't > have a valid jpeg header, maybe because it starts sending in the > middle of a frame. > Any idea about it?
That would be my guess too. Would it be possible to dump the first frame to a file for analysis ? Best regards, Laurent Pinchart _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
