[Motmot] Fview color question

[James Waters]

I'm still having the problem with the buffer set to 1 or 2.  Coriander
seems to work more or less well (it shows the camera display in
color), but it is a little buggy and I haven't recorded much video
with it yet.

 james


On Tue, Jun 15, 2010 at 2:30 PM, Andrew Straw <astraw at caltech.edu> wrote:
> James Waters wrote:
>> Andrew,
>>
>> I started FView by typing "sudo DC1394_DEBUG=1 fview" at the terminal prompt.
>>
>> I changed the frame buffer from 30 to 5.  (Side question, what is the
>> frame buffer?)
>>
>> The program still does not work on any of the high resolution
>> settings.  We get the following kinds of notes in the terminal:
>> 1)  libdc1394 debug: Mode 88, 1624x1224, packet size 3680, packets per frame 811
>>
>> 2)  libdc1394 debug: Mode 88, 1624x1224, packet size 3680, packets per frame 811
>> w 1624, wb 2436, stride0 1624, depth 12
>>
>> 3)  libdc1394 debug: Mode 89, 812x612, packet size 2784, packets per frame 268
>> w 812, wb 1218, stride0 812, depth 12
>>
>> When I selected a pretty low resolution, it worked.  This was the line
>> from the terminal:
>> libdc1394 debug: Mode 71, 800x600, packet size 2000, packets per frame 480
>>
>> Unfortunately, to see the ants and their behavior (i.e., their
>> antennae), we definitely need higher resolution. What do you think?
>>
>>   james
>>
> Hi James,
>
> The frame buffer is memory allocated by the linux kernel to store the
> image data as it's coming in from the cameras. My guess is that you have
> rather big images and that the kernel has some kind of upper limit on
> the amount of memory it is willing to allocate. So, one question is if
> you drop the number to 1 or 2 if it'll work in that case.
>
> Sorry, I haven't tested with a Flea2 camera before, so I'm not sure
> about all these ins and outs.
>
> You could also try Coriander and see if that has any of these issues --
> if it works fine then we know for sure that the issue is Motmot and we
> can hopefully isolate exactly what it is.
>
> -Andrew
>
> --
> Andrew D. Straw, Ph.D.
> California Institute of Technology
> http://www.its.caltech.edu/~astraw/
>
>



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