> I would like to grab a single frame at a time of composite video to my
> Linux PC, and would greatly welcome any advice on the best way to do
For a couple of months recently I've taken snapshots at 5 min intervals of the
interior of a bird nesting box. The hardware is a generic BT848 TV card and a cheap
miniature B/W TV camera with infra red diodes for lighting.
The kernel is 2.2.13 with v4l and bttv modules. I used xawtv running in an X window
and a cron entry as follows:
# Take a snapshot of the nest box every 5 mins. Move snapshot to
# ~/Video/snapshot dir, after sleeping for 4 secs to allow image to be written.
# Dump any messages.
*/5 * * * * /usr/local/bin/xawtv-remote -v 2 -d 0:0 snap jpeg win 1> /dev/null 2>
/dev/null; sleep 4; mv ~/snap-Camera* ~/Video/snapshots
# Make a movie out of snapshots in ~/Video/snapshots at midnight
59 23 * * * cd ~/Video/; /usr/local/bin/mpeg_encode default.param 1> /dev/null; cd -
As you can see, as well as generating 5 min snapshots, a time-lapse movie was created.
I found the system worked very well.
Hope this helps - let me know if you want any more details.
Regards: Jim Ford
_______________________________________________________________________
FSmail - Get your free web-based email from Freeserve: www.fsmail.net
_______________________________________________
Video4linux-list mailing list
[EMAIL PROTECTED]
https://listman.redhat.com/mailman/listinfo/video4linux-list
