beginner's problem with dvgrab

[Steve S. <st...@cs...>]

Hello,
I hate to trouble you, but I am having problems getting dvgrab
to work.  I have installed the ieee1394-2.2.14-20000318 patch in
a 2.2.14 kernel and that seems to work just fine.  At
boot time I see:

ieee1394: registered ohci1394 driver, initializing now
ohci1394: looking for Ohci1394 cards
ohci1394_0: allocated interrupt 10
ohci1394_0: remapped memory spaces reg 0xc8013000
ohci1394_0: soft reset finished
ohci1394_0: max packet size = 2048 bytes
ohci1394_0: 4 iso contexts available
ohci1394_0: Receive DMA ctx=2 initialized
ohci1394_0: Receive DMA ctx=0 initialized
ohci1394_0: Receive DMA ctx=1 initialized
ohci1394_0: AT dma ctx=0 initialized
ohci1394_0: AT dma ctx=1 initialized
ohci1394_0: resetting bus on request and attempting to become root
ieee1394: detected 1 ohci1394 adapter
ieee1394: 1 host adapter initialized

I have built your dvgrab 0.7 with the libraw1394-0.6 library.
I am trying to capture the raw DV so I can decode it with playdv
(the libDV package from OGI).

I have a SIIG card with a TI TSB12LV23 chip on it.

If I run your dvgrab like this:
	dvgrab --ntsc --raw --frames 200 raw.dv
without a camera connected I see these messages in the log file:
ohci1394_0: Got phy packet ctx=0 ... discarded
ohci1394_0: listening enabled on channel 63

That seems okay to me.  If I hook up a camera (a Canon Optura, or a
Panasonic Palmsight - I tried two different cameras) I get zillions of
these messages:
ieee1394: received packet during reset; ignoring

There are huge numbers sent per second - causing klogd to use up
20% of my 533MHz CPU just throwing them away (I must not have the
syslog.conf set to store them away, thankfully).  If I unplug
the DV connector from the camera the reset messages stop with one
additional message:
ieee1394: received packet during reset; ignoring
ieee1394: received packet during reset; ignoring
ohci1394_0: Got phy packet ctx=0 ... discarded

The file "raw.dv" does not receive any data (i.e. it is always empty).

If I terminate the dvgrab program then this message is logged:

ohci1394_0: listening disabled on iso channel 63

which also makes sense to me.
If I plug in the camera when the program is not running I see these
log messages:
ohci1394_0: Got phy packet ctx=0 ... discarded
ohci1394_0: Got phy packet ctx=0 ... discarded
ohci1394_0: Got phy packet ctx=0 ... discarded
(there are 3 of them with a single plugging in operation, and one more
when I unplug).

Any idea what I am doing wrong?  I am not totally unfamiliar with
UNIX kernels (I have been dabbling with them since 1973), but
IEEE1394 and DV are new to me (I have done some background reading,
but not enough).

Can you start me in the right direction?  Do I need to supply more
information?

Thank you, it looks like a nice little package, once I get over the
initial problems.
	st...@cs...