So, I got this new webcam today - it is a Philips SPC 1300NC (0471:0331).
Unlike other webcam's I've had (I had a logitech QC pro 5000, which worked
marvelously with the UVC driver, but it caught fire unfortunately - it would
have a slow shutter speed and blur, but the framerate was always 30 when I
asked it to be), instead of sending a constant frame rate, no matter the
lighting conditions, this camera seems to sync the framerate with the shutter
speed - in less-than-daylight conditions, it sends 5 frames per second out,
after telling what ever program (luvcview, mplayer, gst-launch, or a simple
python video-grabbing script I wrote, available here:
http://www.ndeschildre.net/2008/04/29/python-and-webcam-part-2/ ) I try it with
to use 30 FPS. luvcview shows FPS at the top, and indeed the camera's output
goes from 30FPS if I shove it up to my computer monitor, to 5 FPS if I point it
at me. It gives somewhat comical results when I record a video as it
plays back at 30FPS, so 30 seconds of recording becomes a 6 second clip of me
moving very fast. Unfortunately, comical was not why I bought the camera.
I read a post around the 19th of May on this list regarding a similar issue
with an SPC 1000NC camera, though I never heard anything further regarding it.
Does anyone know if this is a hardware issue that was 'patched' by philips'
Windows drivers (90FPS and 6 megapixels my ass!) and I should just return this
turd, or is it something that could be fixed with software? The only thing that
swayed me from buying another QC5000 was the 1280x1024 capture, but it only
goes to 15FPS with this camera, and I have a real camera if I need to take
pictures. Let me know if you all need anymore information, or any thoughts on
the subject. Thanks,
-rich
_______________________________________________
Linux-uvc-devel mailing list
[email protected]
https://lists.berlios.de/mailman/listinfo/linux-uvc-devel