[libdc] Crash behaviour change from v1 to v2

[Georg K. <gk...@ro...>]

Hi,

I've been trying to port parts of libcvd (a computer vision library) from 
libdc1394v1 to libdc1394v2. We use libdc1394 to do live capture from 
firewire webcams. The new API is much friendlier to program that the old 
one, but I'm having problems at run-time.

If I crash or kill -9 a program with v2, I can't then run it again (*) 
until I use dc1394_reset_bus. However, I can still use v1 programs fine; 
so:

Run v2 program; kill it; Run v2 program => fail to setup capture.
Run v1 program; kill it; Run v1 program => Runs OK
Run v2 program; kill it; Run v1 program => Runs OK

(*) - For 640x480x30xMONO8 it will fail after three previous instances 
have crashed, for 640x480x30xYUV411 it needs only two, I'm guessing this 
has to do with bandwidth allocation.

Is this a common thing? Is there a workaround I can use to get the same 
behaviour as v1? I'd rather not use dc1394_reset_bus before/ after every 
program run.

Thanks
Georg