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Old 12-09-2004, 08:59 AM   #1
LQ Newbie
Registered: Apr 2004
Posts: 29

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dvgrab - raw 1394 error

I have a new computer that I am trying to do some video capture on from a digital camcorder. I am using dvgrab, however every time I try to capture some video I receive this error:

raw1394 - failed to get handle: No such file or directory.
So I checked to see which modules I have loaded:

lsmod | grep 1394
raw1394                24492  0
dv1394                 17196  0
eth1394                17000  0
ohci1394               30788  1 dv1394
ieee1394              292056  4 raw1394,dv1394,eth1394,ohci1394
It appears that everything that should be loaded is, although it seems that on an old system that I had I also had:

but I don't seem to have that now. I am using Mandrake 10.1 Community.

Old 12-10-2004, 08:41 AM   #2
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Registered: Apr 2004
Posts: 29

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Found the answer for anyone interested:

mknod -m 666 /dev/raw1394 c 171 0
Old 12-21-2004, 10:09 AM   #3
LQ Newbie
Registered: Nov 2004
Location: Sauble Beach, Ontario, Canada
Distribution: Mandriva/Mandrake, RedHat, Debian, Ubuntu, Gentoo, Morphix, Knoppix, Peanut
Posts: 21

Rep: Reputation: 15
dvgrab still doesn't, but kino does

Making the device did let dvgrab run, but the AVI files it creates are all junk -- xine just skips the lot of them (using format dv2)

dvgrab --autosplit --frames 7200 --format dv2
is writing 124k files every second or so, instead of much larger 4-minute files; I get the same behaviour if I omit the --frames. and just to confirm, I have the 1394 device registered as

crw-rw-rw-  1 root root 171, 0 Dec 21 09:27 /dev/raw1394
and there is no /dev/ieee1394 directory, although I do have all the devices listed in the /sbin/lsmod and /sys/bus/ieee1394/drivers seems to contain correct information.

Also, I'm still investigating, but although Kino does capture raw digital video, the audio channel was junk.

all of this worked just fine with Mandrake 9.2, same camera, same cables.


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