From: Christopher G. <mo...@gm...> - 2007-07-24 16:01:45
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Damn good question, I have compiled both GSPCA and ZC301 modules and put them in the system (sorry that I forgot about GSPCA btw)...I am not sure which the system chooses for the webcam. When I use my webcam on my Linux desktop, I need to use GSPCA so I assumed that was what was being utilized. When you say that the two cameras do not present usable data, what exactly do you mean? One reason I can think of is that vidcat uses the png format by default (if I remember correctly). You may want to explicitly set the format option on the command line. I am going to get some work done with my verdex tonight, so I will let you know if I come up with something definitive with regards to your question. 2007/7/24, 48...@la... <48...@la...>: > > Christopher, > > I was successful last night in compiling the gspca driver, the linux-uvc > driver and vidcat. > > As a result I was able to use three different webcams, an MS VX-3000 > (gspca), a Logitech Quickcam Deluxe for Notebooks (linux-uvc), and a > Vimicro ZC301P (gspca). > > The two that used the gspca driver mapped up to /dev/video0 and I was able > to get them to respond to vidcat--the camera light would come on and go > off based on vidcat control. However, they did not produce useable data. > > The VX-3000 is supposed to be able to provide jpeg images but when I tried > vidcat with the jpg option the resulting file did not have a JFIF header > anywhere...and assuming that vidcat actually compresses the raw data > itself, I would expect a JFIF header then, especially. > > The Vimicro behaved about the same except that it produced about 2.5 times > the amount of data as the VX-3000 for the same vidcat command options. > > The linux-uvc driver and the Quickcam Deluxe for Notebooks would map to > /dev/video0 but attempts to reference /dev/video0 from vidcat would result > in "device does not exist" (or whatever the verbiage is). > > So, thinking of different ways to attack the problem, I have a question; > > Are you using the ZC301[P] driver that comes with the kernel? > > If so, I'll drop the gspca driver and try that driver instead. > > Thanks again for sharing! > > James > > > Have you seen this: > > > > http://www.mikekohn.net/nakenweb.php > > > > -marc > > > > On 7/23/07, Christopher Gilbert <mo...@gm...> wrote: > >> I am working with a Vimicro ZC301PLH. It cost me $5 on EBay. I haven't > >> been > >> able to get a _clear_ picture out of vidcat on the gumstix, but it > works > >> fine in Windows and Linux. If you have problems getting a clean image > >> with > >> vidcat as well, I'd be interested to hear about it. > >> > >> 2007/7/23, Marc Nicholas <gee...@gm...>: > >> > Hi Christopher, > >> > > >> > Out of interest...which USB camera are you using? > >> > > >> > -marc > >> > > >> > On 7/23/07, Christopher Gilbert <mo...@gm...> wrote: > >> > > Attached is the makefile I used. My typical approach to building > >> extra > >> tools > >> > > is just to hack through the makefiles by hand, however I am sure > the > >> > > configure script could do this all for you. The vidcat utility is > >> part > >> of > >> > > the w3cam package. > >> > > Something to note, running the webcam draws a considerable amount > of > >> power. > >> > > If you find yourself using a USB hub, you may want to rig up a > >> separate > >> > > power source. > >> > > > >> > > > >> > > 2007/7/23, 48...@la... < 48...@la...>: > >> > > > Christopher, > >> > > > > >> > > > Thanks for the reply! > >> > > > > >> > > > vidcat is what I was looking for. Until now I was looking at > >> streamer, > >> > > > etc. from the xawtv package for V4L. > >> > > > > >> > > > Will you share your makefile for vidcat? Any other instructions > >> to > >> > > > compile it? > >> > > > > >> > > > Everything will be greatly appreciated. > >> > > > > >> > > > Btw, I've already recompiled the kernel with v4l, pwc, sn9c1xx. > >> I've > >> also > >> > > > updated the sn9c1xx driver to the latest 1.48 version and made a > >> few > >> > > > modifications. However, embracing the wisdom of KISS, I've just > >> ordered a > >> > > > Quickcam Pro 4000 (which I understand to be compatible with the > >> pwc > >> driver > >> > > > in the kernel). My goal is to be able to run the kernel I have > >> now > >> (no > >> > > > further modifications) and achieve plug-and-play with the webcam. > >> > > > > >> > > > James > >> > > > > >> > > > > Hi James, > >> > > > > I have done some work with a Verdex and a USB webcam and a > >> Console > >> VX, > >> > > so > >> > > > > I'll try an give you a rundown of what I did. > >> > > > > I recompiled the kernel with video for linux support, and > >> enabled > >> the > >> > > usb > >> > > > > camera support as well. > >> > > > > I used buildroot to compile vidcat, which allowed me to capture > >> still > >> > > > > images > >> > > > > in PNG and JPEG formats. > >> > > > > I haven't tried venturing into video streams yet, but I would > be > >> > > > > interested > >> > > > > if you get things working. > >> > > > > I found a link in my research, maybe it will help you out: > >> > > > > http://www.pabr.org/cfcam/doc/cfcam.en.html > >> > > > > Hope things turn out well. > >> > > > > > >> > > > > > >> > > > > 2007/7/23, 48...@la... < 48...@la...>: > >> > > > >> > >> > > > >> Dave, > >> > > > >> > >> > > > >> Oops. Sorry. > >> > > > >> > >> > > > >> I must be getting bleed-through from the wifi effort that > >> preceeded > >> the > >> > > > >> webcam effort. > >> > > > >> > >> > > > >> But, hey, thanks for sharing the info on wifi! > >> > > > >> > >> > > > >> James > >> > > > >> > >> > > > >> > Hi James, > >> > > > >> > > >> > > > >> >> I've noticed that the Hylands brothers seem to have been > >> successful > >> > > > >> but > >> > > > >> >> I > >> > > > >> >> haven't seen any posts where they discuss the application > >> they > >> use, > >> > > > >> only > >> > > > >> >> the driver(s). > >> > > > >> > > >> > > > >> > Umm - we haven't done anything with webcam's, just wifi > >> dongles. > >> > > > >> > > >> > > > >> > -- > >> > > > >> > Dave Hylands > >> > > > >> > Vancouver, BC, Canada > >> > > > >> > http://www.DaveHylands.com/ > >> > > > >> > > >> > > > >> > > >> > > > >> > >> > > > >> > ------------------------------------------------------------------------- > >> > > > >> > This SF.net email is sponsored by: Splunk Inc. > >> > > > >> > Still grepping through log files to find problems? 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Stop. > >> > > > Now Search log events and configuration files using AJAX and a > >> browser. > >> > > > Download your FREE copy of Splunk now >> http://get.splunk.com/ > >> > > > _______________________________________________ > >> > > > gumstix-users mailing list > >> > > > gum...@li... > >> > > > > >> > > > >> https://lists.sourceforge.net/lists/listinfo/gumstix-users > >> > > > > >> > > > >> > > > >> > > > >> > ------------------------------------------------------------------------- > >> > > This SF.net email is sponsored by: Splunk Inc. > >> > > Still grepping through log files to find problems? Stop. > >> > > Now Search log events and configuration files using AJAX and a > >> browser. > >> > > Download your FREE copy of Splunk now >> http://get.splunk.com/ > >> > > _______________________________________________ > >> > > gumstix-users mailing list > >> > > gum...@li... > >> > > > >> https://lists.sourceforge.net/lists/listinfo/gumstix-users > >> > > > >> > > > >> > > > >> > > >> > > >> > ------------------------------------------------------------------------- > >> > This SF.net email is sponsored by: Splunk Inc. > >> > Still grepping through log files to find problems? Stop. > >> > Now Search log events and configuration files using AJAX and a > >> browser. > >> > Download your FREE copy of Splunk now >> http://get.splunk.com/ > >> > _______________________________________________ > >> > gumstix-users mailing list > >> > gum...@li... > >> > > >> https://lists.sourceforge.net/lists/listinfo/gumstix-users > >> > > >> > >> > >> > ------------------------------------------------------------------------- > >> This SF.net email is sponsored by: Splunk Inc. > >> Still grepping through log files to find problems? 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