Berco Beute wrote: > I've been trying to access my webcam using Python, but I failed > miserably. The camera works fine under Ubuntu (using camora and > skype), but I am unable to get WebCamSpy or libfg to access my webcam. > > First I tried webcamspy (http://webcamspy.sourceforge.net/). That > requires pySerial and pyParallel, and optionally pyI2C. Runing > WebCamSpy results in: > > Exception exceptions.AttributeError: "Parallel instance has no > attribute '_fd'" in <bound method Parallel.__del__ of > <parallel.parallelppdev.Parallel instance at 0x83326ac>> ignored > > This seems to come from importing I2C. The application window opens, > but there's an error message: > > NO VIDEO SOURCE FOUND > > Next I tried libfg (http://antonym.org/libfg). I built it, made the > Python bindings and installed it. Unfortunately the following: > >>>>import fg >>>>grabber = fg.Grabber() > > results in: > > fg_open(): open video device failed: No such file or directory > > Since the camera works fine in Ubuntu itself my guess is that the > problem is with the python libraries (or even likelier, my usage of > them). Is there anybody here that was successful in accessing their > webcam on linux using Python? Else I have to reside to Windows and > VideoCapture (which relies on the win32 api and thus is Windows-only), > something I'd rather not do.
It has been *ages* since I did this - so take it with a grain of salt. However, back then I was able to access a video camera using gqcam. Looking into the source of that revealed that all it did were some simple ioctl-calls and reading from a /dev/video*-device. That did the trick for me... Additionally, you might consider using gstreamer + the python bindings for that. I was also successful using them - if I remember this conversation tonight or so, I'll send you the sources. Diez Diez -- http://mail.python.org/mailman/listinfo/python-list
