Re: beginner's problem with dvgrab

[Charles 'B. K. <kr...@cs...>]

Hi Steve,

I just got around to trying the new card.

My hardware:
	generic 400MHz PII 	
	SIIG 1394 interface model # NN2603.
	Canon Elura camcorder (NTSC)

I'm using the following software:
	
	linux kernel -- vanilla 2.2.14 (on RH 6.1 dist)
	ieee1394     -- I started with the patch, then I replaced the driver
                        with the current CVS version
        libraw       -- current CVS version
        dvgrab       -- 0.7 + Alastair Mayer's patch to generate raw output 
                        for libdv
        libdv        -- CVS version

I have strange results.  The first two tries produced video with odd
sync problems, i.e. the picture from playdv (libdv) was vertically
offset by about 2/3 of a frame.  A third one produced video that
seemed OK, but playdv seg faulted (I think on the last frame).

The commands I use :  dvgrab --ntsc --frames 300 --dv file
                      playdv file.dv

At one point, I unloaded/reloaded the ohci module.  

Since then, I've done about 8 clips in a row that all work correctly.
Takes time to warm up? 8-|

-- Buck

ps Here is what I see in my syslog:

Apr 24 23:55:44 c360746-a kernel: ieee1394: registered ohci1394 driver, initializing now 
Apr 24 23:55:44 c360746-a kernel: ohci1394: looking for Ohci1394 cards 
Apr 24 23:55:44 c360746-a kernel: ohci1394_0: allocated interrupt 15 
Apr 24 23:55:44 c360746-a kernel: ohci1394_0: remapped memory spaces reg 0xc8854000 
Apr 24 23:55:44 c360746-a kernel: ohci1394_0: soft reset finished 
Apr 24 23:55:44 c360746-a kernel: ohci1394_0: max packet size = 2048 bytes 
Apr 24 23:55:44 c360746-a kernel: ohci1394_0: 4 iso contexts available 
Apr 24 23:55:44 c360746-a kernel: ohci1394_0: Receive DMA ctx=0 initialized 
Apr 24 23:55:44 c360746-a kernel: ohci1394_0: Receive DMA ctx=1 initialized 
Apr 24 23:55:44 c360746-a kernel: ohci1394_0: AT dma ctx=0 initialized 
Apr 24 23:55:44 c360746-a kernel: ohci1394_0: AT dma ctx=1 initialized 
Apr 24 23:55:44 c360746-a kernel: ohci1394_0: Receive DMA ctx=2 initialized 
Apr 24 23:55:44 c360746-a kernel: ohci1394_0: resetting bus on request and attempting to become root 
Apr 24 23:55:44 c360746-a kernel: ieee1394: detected 1 ohci1394 adapter  
Apr 24 23:55:44 c360746-a kernel: ohci1394_0: SelfID process finished (phyid 1, root) 
Apr 24 23:55:44 c360746-a kernel: ohci1394_0: selfid packet 0x807f0880 rcvd 
Apr 24 23:55:44 c360746-a kernel: ohci1394_0: selfid packet 0x817f815e rcvd 
Apr 24 23:55:44 c360746-a kernel: ohci1394_0: This node self-id is 0x817f815e 
Apr 24 23:55:44 c360746-a kernel: ohci1394_0: calling self-id complete 
Apr 24 23:55:44 c360746-a kernel: ohci1394_0: Got phy packet ctx=0 ... discarded 
Apr 24 23:56:48 c360746-a kernel: ohci1394_0: listening enabled on channel 63 
Apr 24 23:56:58 c360746-a kernel: ohci1394_0: listening disabled on iso channel 63