Help with DVR (Digital Video Recorder)

hate29 · 01-03-2007, 05:23 PM

I'm trying to use DVR to record from my tvcard. http://dvr.sourceforge.net/html/main.html
I put this link for more information about this software. I've succesfully installed it and get it started and it recognizes my Tvcard right but when I choose my tvcard it shuts down with an error:

Code:

*** WARNING *** : the driver doesn't provide a correct size for memory mapping. DVR tries to correct this error, but some strange things may happend, you are warned.
Can't map memory for capture : Virheellinen argumentti

Can someone please tell me what this means and can I do something to it? Or should I just change my software to another one.

rubadub · 01-04-2007, 01:01 PM

Doing something similar I use mplayer and / or mencoder. The following scripts show how!

Code:

#mplayer tv:// -tv driver=v4l:width=352:height=288:output=yv12:device=/dev/video0

# $1 = device, e.g. /dev/video0
# $2 = length in frames
#mplayer tv:// -tv driver=v4l:width=352:height=288:outfmt=yv12:device=/dev/video0 -frames 10
mplayer tv:// -tv driver=v4l:width=352:height=288:outfmt=yv12:device=$1 -frames $2

Code:

echo This script only records 30 seconds of video

# $1 = device, e.g. /dev/video0
# $2 = length in seconds
# $3 = output filename


#mencoder -tv driver=v4l:width=352:height=288:device=/dev/video0 \
#	-ovc lavc -lavcopts vcodec=mpeg4 \
#	-endpos 30	\
#	-o output.avi tv://

mencoder -tv driver=v4l:width=352:height=288:device=$1 \
	-ovc lavc -lavcopts vcodec=mpeg4 \
	-endpos $2	\
	-o $3.avi tv://

Both scripts i've left the crud in to help explain and both need you to pass cmdl args...

p.s. My cams are set up using v4l (video 4 linux)

Have fun!

hate29 · 01-04-2007, 01:09 PM

Can I set times for recordings with those scripts? I really need to set times for them, or I don't really have any use for it.