[PD] pdp and webcams
jim ruxton
cinetron at passport.ca
Wed Jul 28 17:35:46 CEST 2004
Thank you everyone for your suggestions of webcams. I bought a Quickam
4000 Pro and it works well with PDP and PiDip. Although I am getting a
glitch in the video about every second. I think I just have to
experiment with the settings. Thanks especially to Tom and Yves for a
couple of great Externals.
Jim
> with pwc/pwcx 2.4/2.6 kernels:
>
> Philips ToUcam Pro is very fine (not produced anymore, ebay?)
> Philips ToUcam Pro II is very fine (around 80 euros)
> Philips ToUcam Fun II is not working properly (image reversed, random
> crash, huge slowdowns) (around 60 euros)
>
>
>
>
> On Mon, 26 Jul 2004 20:10:52 +0200
> Yves Degoyon <ydegoyon at free.fr> wrote:
>
> > i use an aiptek mobile v-cam ( modulo ov511 ),
> > but i don't use much pdp/pidip myself,
> > some friends do ( laughters )
> >
> > suerte,
> > sevy
> >
> > Ian Smith-Heisters wrote:
> >
> > >Quickcam 4000 works like a dream for me. There were a few problems
> > >when kernel 2.6 first came out, but the pwc drivers are at 9.0.1 now,
> > >and look like they'll run nicely.
> > >
> > >
> > >
> > >>-----Original Message-----
> > >>From: pd-list-admin at iem.at [mailto:pd-list-admin at iem.at] On
> > >>Behalf Of jim ruxton
> > >>Sent: Monday, July 26, 2004 11:37 A
> > >>Cc: pd list
> > >>Subject: Re: [PD] pdp and webcams
> > >>
> > >>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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