Re: [libdc1394-devel] fedora7/juju problem with format 7?

[Patrick W. <pa...@wh...>]

hello again everyone. I am asking back again with another question. I am
very keen on getting libdc1394 working properly with Fedora 7 so I have
spent another day screwing around with stuff to try and get it to work. Now
the stability has regressed from before and I get internal errors often:

All the time I get this non-exiting error twice after i run
"dc1394_find_cameras(&cam, &num_cams)"

*(control.c:dc1394_update_camera_info:270) Tagged Register not found:
Problem inferring the IIDC version.*

Then occasionally (every 3 or 4 tried i run it) when i run
dc1394_capture_setup(...) i get this error:

*(internal.c:_dc1394_capture_basic_setup:384) Invalid Video Format: Unable
to get current video mode.*


Then if the above does not fail then I keep going until I try to dequeue my
first frame. The I am blocked there forever. I guess this is because I am
not actually streaming and it is set on a WAIT policy. This happens with an
iSight and a AVT Pike camera (the exact same problem) with video_mode of
DC1394_VIDEO_MODE_640x480_YUV422 which both of them support.

The exact same program works on Fedora 6 and Ubuntu.The firewire devices in
/dev are fw0 and fw1. I set both of these with chmod 755 /dev/fw* . The
libdc1394 was built as:
*
*
*./configure --with-juju-dir=/usr/src/kernels/2.6.22.4-1x.x64/include*
*make install*

Is there anything I can do? Does anyone have libdc1394 (with format7)
working properly in Fedora7 or a distro using juju/the new firewire stack
from the new kernels.

Thanks again,
Patrick





On 8/7/07, Patrick White <pa...@wh...> wrote:
>
>
>
> hi everyone. I have recently been playing with fedora 7 and juju to try
> and iron out a bit of corruption that happens very occasionally when
> stressing the computer fully (cpu and network wise). This is besides the
> point however.
>
>
> I installed Fedora 7, updated to the recently released 2.6.22.1-41.fc7kernel from the main repo. Then i configured and installed the svn head of
> libdc1394 with:
>
>
>     ./configure --with-juju-dir=/usr/src/kernels/2.6.22.1-
> 41.fc7-x86_64/include
>     make install
>
>
> This makes well, including all the examples except the dc1394-multiview
> app, the grab_color_image and such work properly and i get a usable image.
>
>
> When i run my application to run my camera (a pike 210c) it works properly
> if i use:
>
>
>     dc1394_video_set_mode(camera,DC1394_VIDEO_MODE_640x480_YUV411)
>
>
> however when i use format 7 (which is what i need):
>
>
>     dc1394_format7_set_roi(camera, video_mode, color_code, byte_size, 0,0,
> width, height);
>
>
> it fails at the capture setup:
>
>
>    dc1394_capture_setup(camera, 4, DC1394_CAPTURE_FLAGS_DEFAULT);
>
>
> and in the CL output, dc1394 gives me this error:
>
>
> (format7.c) BYTES_PER_PACKET is zero. This should not happen.
> Libdc1394 error (internal.c:_dc1394_capture_basic_setup:383): Generic
> failure : Unable to get format 7 bytes per packet for mode 88
>
>
>
>
>
>
>
> Is there anything i can do to make this work? or do i just have to give up
> on format 7 OR juju for now? And is my whole process correct for juju
> anyways? It seems to be, but maybe i missed something minor.
>
>
> Thanks,
> Patrick
>