From: Jason W. <jw...@cl...> - 2003-09-17 09:40:32
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> -----Original Message----- > From: Reinhard Amersberger [mailto:pr...@we...] > Sent: 17 September 2003 10:31 > To: kde...@li... > Subject: [Kdenlive-devel] testing pgrab > > > kde...@li... schrieb am 15.09.03 13:45:40: > > BTW, did I mention that pgrab is in the CVS HEAD? You can > use it to capture DV > > from your DV-Cam if it's supported by avc1395. > > > > > Ok, I've tested it, but had to run pgrab as root, otherwise I > get this error: > > .... > .... > avccontroller.cc:75 INFO: AVCController::AVCController() > avccontroller.cc:84 WARNING: couldn't get raw1394 handle > avstream.cc:63 INFO: _deliveredFrames=0 > caught std exception: raw1394 system error > [booker@linux piave]$ > > But maybe this is a general problem on my machine, because I > had to run kino also as root to be able to grab using the > IEEE1394 interface. It sounds like your normal user does not have read/write access to the relevant ieee1394 devices. I cannot remember which devices they are, but I believe /dev/raw1394 or similar is one of them. There are others for camcorder control and recording, I believe. There are potential security issues with making the firewire bus read/writable by a normal user - any ieee1394 device can be accessed via the bus, so if you had a firewire harddrive for example, a normal user could completely trash it... Personally, I don't care about multi-user secutiry issues on my laptop though, I'm more concerned with the security issues of people walking off with it ;-) Cheers, Jason |
From: Reinhard A. <pr...@we...> - 2003-09-18 12:00:44
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kde...@li... schrieb am 18.09.03 12:01:04: > > On Wednesday 17 September 2003 11:31, Reinhard Amersberger wrote: > > Ok, I've tested it, but had to run pgrab as root, otherwise I get this > > We can only "fix" this by giving the user an understandable error message and > give instructions on how to change the necessary permisssions. Yes, very good idea, since this isn't a very common action for ordinary users ... just like me ;-) > > avstream.cc:69 INFO: _recievedFrames=0 > > > > Is this the answer to my problem? > > Well, I would say, that is is the problem, not actually the answer ;-) hehehe ;-)) > What camera do you have? avccontroller.cc:189 INFO: Found node: Hollywood Dazzle*, Inc. type=AVC (subtype=VCR) > Does the cam react to the other commands, like play, > play, fwd, rewind, etc. ? The Hollywood bridge is an analog to firewire connector, and vice versa, so I just could test the play and stop actions which was working fine. ASAP I willl connect my cam to check the other commands. greetings Reinhard |
From: Rolf D. <Rol...@ph...> - 2003-09-18 13:00:54
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On Thursday 18 September 2003 13:59, Reinhard Amersberger wrote: > kde...@li... schrieb am 18.09.03 12:01:04: > > Does the cam react to the other commands, like play, > > play, fwd, rewind, etc. ? > > The Hollywood bridge is an analog to firewire connector, and vice versa= , so > I just could test the play and stop actions which was working fine.=20 Interesting, I presume it's orking with kino/dvgrab, right? Cheers, Rolf --=20 contacts: www.physi.uni-heidelberg.de/~dubitzky |