Hi Juan, On Wednesday 19 November 2008, Juan Pablo Garbarino wrote: > On Tue, Nov 18, 2008 at 6:39 PM, Filippo Argiolas wrote: > > On Tue, Nov 18, 2008 at 12:36 AM, Laurent Pinchart wrote: > >> > 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 ? > > > > Ok attached you can find the first frame from one of the two users > > (Juan Pablo could you attach a first frame dump too? Thank you) > > It's been created with "luvcvideo -f mjpg -c", is it ok? The webcam > > seems to support yuv too but since that error is jpeg related this > > should be the right command. > > > Here is my dump, I did it as Filipo ( luvcview -f mjpg -c ). > Hope it helps. Anything else, just ask.
Thanks for the data. Your frame starts with valid JPEG data but seems incomplete. This isn't the same issue Filippo reported at first. I'll first work with him to see if we can solve his problem, and I'll then come back to you if you still experience problems with the uvcvideo driver. Best regards, Laurent Pinchart _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
