I'm using iSweet FW webcam, it works really well with 320x240, nearly with no delay, I've brought that from a fake japanese company in the US.
BTW, I'm using mac osx 10.3.4
於 26 Jul 04 11:36 PM 時，jim ruxton 提到：
Thanks Tom, I'm wondering if anyone can recommend a camera that they are using with pdp/pidip . I've tried using the Labtec camera (same driver as Logitech Quickcam express) which works with Gem (extremely slow) but not pdp. Tom suggested a camera with the Phillips Chipset. I haven't seen any Phillips cameras here but it appears that the Logitech Quickcam 3000 and 4000 use the Phillips chipset. So anyone using the Logitech Quickcam 3000 or 4000 with pdp?? Has anyone got the Labtech camera to work with pdp. Thanks, Jim On Sun, 2004-07-25 at 16:49, Tom Schouten wrote:
hi jim,
try to send a 'captureformat RGB24' or 'captureformat RGB32' the the pdp_v4l object. if that doesn't help, it means your camera is either too new (and has only a video4linux2 driver), or it doesn't support double buffered capturing, which is implicitly assumed in pdp_v4l, or has a broken driver.
if it's the double buffering, it means you're stuck. maybe i will support it later, but that's no priority for me now.
consider buying a camera with a philips chipset. they are a little more expensive, but it's worth it. it's decent hardware, but more importantly, there's a good driver that supports its special features. this driver is explicitly supported in pdp. the driver is called 'pwc' and is in the kernel. the proprietary codec is supported in the 'pwcx' module.
they have built-in compression which makes it possible to have a relatively high framerate for a webcam: 27fps at 320x240 compared to 10 for the cheap ones. i don't know if there are any other driver/camera combinations that can do this.
and no, i'm not payed by philips, but as far as i can see, it's the only thing that really works well, despite the fact that there's non-open source part that makes it go that extra mile..
see http://www.smcc.demon.nl/webcam/ for a list of cameras supported by the pwc/pwcx driver.
cheers,
tom
On Sun, 25 Jul 2004, jim ruxton wrote:
I'm still trying to figure out why nothing is in the video window. Any thoughts where I should start to look. Jim
I thought I had succeeded but when I try to look for an image in an example patch (input_output.pd) I don't see it. Below is what I get in the terminal window after creating a window opening pdp_v4l and banging it once. I tried pdp_xv and pdp_glx with no luck. I can see the video with Gem and xawtv so I think video4linux is ok. Any thought where I should start to look for problems. I'm using a logitech usb based webcam. Jim Sample width set to 2 bytes PDP: pure data packet PDP: version 0.12.3 pdp_xvideo: grabbed port 61 on adaptor 0 pdp_v4l: opening /dev/video0 pdp_v4l: cap: name Logitech USB Camera type 513 channels 1 maxw 352 maxh 292 minw 32 minh 32 pdp_v4l: picture: brightness 32767 depth 24 palette 4 pdp_v4l: channel 0 name Camera type 2 flags 0 pdp_v4l: switched to channel 0 pdp_v4l: set norm to 0 pdp_v4l: buffer size 426240, frames 1, offset 0 0 pdp_v4l: using VIDEO_PALETTE_YUV422 pdp_v4l: frame 0 0, format 7, width 320, height 240 pdp_v4l: Opened video connection (320x240) pdp_v4l: VIDIOCMCAPTURE: Invalid argument pdp_v4l: VIDIOCMCAPTURE2: Invalid argument pdp_v4l: frame 1 1, format 7, width 320, height 240 pdp_v4l: VIDIOCSYNC: Bad file descriptor pdp_v4l: no device opened pdp_v4l: attempting auto open pdp_v4l: opening /dev/video0 pdp_v4l: cap: name Logitech USB Camera type 513 channels 1 maxw 352 maxh 292 minw 32 minh 32 pdp_v4l: picture: brightness 32767 depth 24 palette 4 pdp_v4l: channel 0 name Camera type 2 flags 0 pdp_v4l: switched to channel 0 pdp_v4l: set norm to 0 pdp_v4l: buffer size 426240, frames 1, offset 0 0 pdp_v4l: using VIDEO_PALETTE_YUV422 pdp_v4l: frame 0 0, format 7, width 320, height 240 pdp_v4l: Opened video connection (320x240) pdp_v4l: VIDIOCMCAPTURE: Invalid argument pdp_v4l: VIDIOCMCAPTURE2: Invalid argument pdp_v4l: frame 1 1, format 7, width 320, height 240 pdp_v4l: VIDIOCSYNC: Bad file descriptor pdp_v4l: auto open failed
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