Re: generating firewire traffic

OK, the dvgrab issue is probably a non issue given I can not panic
with just cat and ping:

cat /dev/dv1394/0 >/dev/null &
sudo ping -r -f -l 100 -s 2000 $ECHOSVR

ping -f misses a packet (a . gets left on the screen) about 1/second.
 remove the cat /dev/dv1394..., it doesn't miss any, and no panic (at
least after I let it run for 30 min, normally plenty of time.)

But if you think it is worth investigating dvgrab and new drivers:


On Sat, Jun 13, 2009 at 5:46 PM, Stefan
Richter<[email protected]> wrote:
> Carl Karsten wrote:
>>
>> dvgrab does not work with libraw1394 v2.  (right?  woo, thread is on
>> the right list again!)
>
> Yes it does.
>
> If you have a dvgrab binary which is linked against a libraw1394 v1, then it
> won't use libraw1394 v2 though.

I need help building:

dvgrab from ubuntu repos:

carl@dv67:~$ ldd /usr/bin/dvgrab |grep raw1394
	libraw1394.so.11 => /usr/lib/libraw1394.so.11 (0x00007fdf9dbfa000)
	libraw1394.so.8 => /usr/lib/libraw1394.so.8 (0x00007fdf9bbb7000)


So I try to make my own and not let it find .8:

juser@e18:~/vga2usb/dvgrab/dvgrab/dvgrab-trunk$ ./configure

checking for LIBRAW1394... yes
checking for LIBAVC1394... configure: error: Package requirements
(libavc1394 >= 0.5.1) were not met:

No package 'libavc1394' found

so I installed libavc1394-dev,
sudo rm  /usr/lib/libraw1394.so.8
./configure;make

juser@e18:~/dvgrab-trunk$ ./dvgrab |grep raw1394
./dvgrab: error while loading shared libraries: libraw1394.so.8:
cannot open shared object file: No such file or directory
juser@e18:~/vga2usb/dvgrab/dvgrab/dvgrab-trunk$ ldd dvgrab |grep raw1394
	libraw1394.so.11 => /usr/lib/libraw1394.so.11 (0x003c7000)
	libraw1394.so.8 => not found
	libraw1394.so.8 => not found

>>    root@dhcp216:~# echo x|/dev/raw1394
>"x" is not a valid request:
>http://lxr.linux.no/linux+v2.6.30/drivers/ieee1394/raw1394.h
>In other words, you need a libraw1394 based program to do anything with >/dev/raw1394.

got it.  just like I need to use nc to do network i/o.

>>   Where do I get testdv?
> It's a utility which is provided in the libiec61883 source distribution and
> installed by some, but not all, libiec61883 binary packages.

huh - ubuntu had that package in universe, but dropped it about a year ago.

I guess dvgrab is simple enough, and anyone interested in this bug
(assuming it is dependent on firewire) will be OK using dvgrab as part
of the test.

-- 
Carl K

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