Hello! thx for your answer! Now we get much better fps (aprox. 6) but we still have the automatic brightness control problem and we wish to get a better ftp (15-20). I would like to get your recommendation for alternative usb camera that is properly supported by v4l and is low cost. Also, expecting your 0.1 version of qc-usb... Thank you! Arie. Tuukka Toivonen wrote: > Subject: Re: v4l: very low fps > From: Tuukka Toivonen <tuukkat@xxxxxxxxxx> > To: Arie Tuchfeld <arie@xxxxxxxxxxxxxx> > Date: Tue, 17 Jun 2003 15:17:38 +0300 (EEST) > > >On Tue, 17 Jun -1, Arie Tuchfeld wrote: > >>I'm using v4l driver to capture from Logitech USB camera. >>I meerly get 2 fps. > >The driver has automatic brightness control and changes constantly exposure >time and signal gain. Unfortunately, changing exposure while streaming >video with HDCS chips causes frames to be skipped. Alternatively, you have >HDCS1020 sensor for which there might be a bug the qce-ga driver (it is >fixed in CVS, but I'm not sure about the released version). > >Solutions: get CVS version of qce-ga (available from sourceforge via cvs or >http://www.ee.oulu.fi/~tuukkat/quickcam/qce-ga-cvs.tar.gz) >OR (I would recommend) use qc-usb which is next generation version of >qce-ga with lots of extra functionality /and/ option to disable automatic >exposure control (if that is which is causing troubles), >http://www.ee.oulu.fi/~tuukkat/quickcam/qc-usb-cvs.tar.gz >(or directly sourceforge cvs for even later version). > >I'm planning to release official 0.1 version of qc-usb this week or at >least early next week (but then again, so did I spoke a week ago, and a few >weeks ago...) > >Unfortunately, with Quickcam you don't get much better than 7.5 fps (or max >15 fps if you use subsampling/small window size or compressed mode in >Quickcam Web/LEGO cam). > >You could, of course, complain to Logitech for providing no documentation >but it would be useless. > > >-- >video4linux-list mailing list >Unsubscribe mailto:video4linux-list-request@xxxxxxxxxx? subject=unsubscribe >https://www.redhat.com/mailman/listinfo/video4linux-list > >__________________________________________________________________ > _______________________________ Sent by TalkM@il WEBMail Server MailVision Inc. http://www.mailvision.net
