Re: capture of camera often fails to work
Brought to you by:
aeb,
bencollins
From: Dirk L. <dir...@gm...> - 2012-08-28 19:35:22
|
Hi Stefan, thanks for the reply. Am Dienstag, 28. August 2012, 16:19:26 schrieb Stefan Richter: > On Aug 28 Dirk Langner wrote: > > A friend of mine tries to attach his (Sony) camera to a NEC uPD72874 > > firewire card. Sometimes the captures works, most of the time the > > control of camera and firewire interface for whatever reason fails to > > work correctly. > > Is this a DV/HDV camcorder or an IIDC/DCAM industrial camera? > Which application is your friend using for control and capture? Sony DCR-TRV9E, DVCAM. We've tried with kdenlive, kino, but also dvgrab -i. The behaviour was unstable, sometimes a picture could be seen, but you hadn't had any control of the camera, most of the time simply nothing happens (especially using dvgrab). But also: sometimes the capture went through. > > dmesg throughs out the messages: > > [...] > > [ 480.812183] [<ffffffffa0074f50>] ? ioctl_get_speed+0x20/0x20 > > [firewire_core] [ 480.812210] [<ffffffffa0076eb5>] > > fw_device_op_release+0x1a5/0x270 [firewire_core] > > > > Has anybody seen error messages like that and know what this might cause? > > How to get around this problem? > > These two lines are unexpected. Please post all dmesg lines around these > two, not only the lines which contain something about firewire. If you > are only in the slightest doubt what could be related and what's not, > simply post everything from dmesg. (Try to keep the message size below 50 > kByte, otherwise the message will make a detour through the moderation > queue.) Ok, thanks. I'll try to obtain the requested info and keep you posted. Dirk |