Re: webcam support -- first success!!

Le Jeudi 19 Mai 2005 20:46, poeml_at_cmdline.net a écrit :
> On Thu, May 19, 2005 at 02:18:43PM +0200, Peter Poeml wrote:
> > Wild flickering on the display, but only for a short time. (It does look
> > more like initialising the screen than an actual video stream.) In fact,
> > the spcaview terminates quite soon:
>
> When I capture to a file rather, I can avoid the problem with the
> framebuffer. ...and it works!
>
> http://bro.poeml.de/~poeml/cl20.avi (1.3MB)
> (me waving)
>
> (The actual historical first stream is somewhat larger, 5MB ;)
> http://bro.poeml.de/~poeml/cl20-very_first_stream.avi
>
>
> It seems to work when the camera has powered on just before. In other
> words, if I try a second time without resetting the camera it doesn't
> work, and only a very small file is captured (2056 bytes), and spcaview
> logs something like "Used 26474ms for 1 images => 26474ms/image 0fps."
>
>
> The log of a successful attempt:
>
>
>  # ./spcaview -f jpg -s 320x240 -j -o /tmp/bla.avi
>  Spcaview version:1.0.4 date: 01:05:2005 (C) mxhaard_at_magic.fr
>  size width: 320 height: 240
> Initializing SDL.
> SDL initialized.
> bpp 3 format 21
> Using video device /dev/video0.
> Initializing v4l.
> May 19 20:24:49 g3bw kernel: drivers/usb/spca5xx.c:
> [spca500_initialise:5921] Spca500 Sensor Address  0x00 ****************
> PROBING CAMERA *********************
> Camera found: Agfa ephoto CL20
>
> Bridge found: SPCA500
>
> StreamId: JPEG Camera
> Available Resolutions width 640  heigth 480 native
> Available Resolutions width 352  heigth 288 native
> Available Resolutions width 320  heigth 240 native *
> Available Resolutions width 176  heigth 144 native
> *****************************************************
>  grabbing method default MMAP asked
> VIDIOCGMBUF size 4915232  frames 4  offets[0]=0 offsets[1]=1228808
> VIDIOCGPICT
> brightnes=0 hue=0 color=0 contrast=0 whiteness=0
> depth=8 palette=21
> VIDIOCSPICT
> brightness=0 hue=0 color=0 contrast=0 whiteness=0
> depth=24 palette=21
>
> May 19 20:24:58 g3bw last message repeated 2 times
> May 19 20:25:22 g3bw sshd[1159]: Accepted publickey for root from
> ::ffff:192.168.0.180 port 34540 ssh2 cvsync err
>
> : Interrupted system call
>
> Used 64235ms for 1153 images => 55ms/image 17fps.
> Quiting SDL.
> Decoded frames:1153 Average decode time: 0.000000
> unmapping
> closing
> closed
> close avi
> Destroy Picture thread ...
> Quiting....
>
>
>
> Peter
Peter, 
A good news :) I know the problem about resetting the webcam in some spca500 
webcam. I am pretty sure the problem is simple to solve but i did not have a 
hardware for testing :( 
I have download your first avi , frame rate and quality seem good :)
Best regards
-- 
Michel Xhaard