[Motmot] Various announcements, including FView updates

Fri Mar 20 15:45:11 UTC 2009

John Bender wrote:
> Thanks, Andrew. 64-bit Hardy, Basler A602f-2 camera. And still no
> information gets printed out. Does this sound like the problem I
> half-fixed before, where I had to make it wait until the 10th frame
> was received from the camera before I started to run any of the
> drawing or callbacks? Just a thought; I'm not sure what you've changed
> recently.

The only two things I can think that would cause a segfault are A) an
old version of libcamiface hanging around and getting picked up somehow.
 Or B) some 64-bit bug -- I hadn't tested this update on 64-bit yet. I
would start debugging this with gdb.

> 
> JB
> 
> PS: I can give you an account on this computer if you want; I
> guarantee you can replicate it that way.

That would be good -- probably the quickest way to get this sorted out.
Please send me an email with username and password offlist, and I'll log
in and change the password as the first thing I do, immediately followed
by an email saying I changed the password.

-Andrew

> 
> On Fri, Mar 20, 2009 at 11:16 AM, Andrew Straw <astraw at caltech.edu> wrote:
>> John Bender wrote:
>>> Hi Andrew,
>>>
>>> The latest updates to Fview seem to have re-broken it for me. I run
>>> Fview from the command line, then choose "initialize camera". It
>>> recognizes my camera; I choose OK; then I get a "Segmentation fault"
>>> and Fview crashes with no log. Before today's updates, this would
>>> happen occasionally, but usually I just had to [unplug the camera,
>>> replug it, restart Fview] once or twice before it would work. Now it
>>> crashes every time.
>>>
>> Hi John,
>>
>> Thanks for the bug report. What kind of camera do you have? Is this on
>> Ubuntu Hardy? 32-bit?
>>
>> If you run on the command line:
>>
>> export FVIEW_NO_REDIRECT=1
>> fview
>>
>> Does any more information get printed out?
>>
>> Hopefully I'll fix it this morning (if I can reproduce it), but in the
>> meantime you can manually download the most-recent-but-one releases of
>> libcamiface, python-motmot-camiface and python-motmot-fview from
>> http://debs.astraw.com/hardy and downgrade.
>>
>> -Andrew
>>> JB
>>>
>>> On Thu, Mar 19, 2009 at 9:07 PM, Andrew Straw <astraw at caltech.edu> wrote:
>>>
>>>> Hi all,
>>>>
>>>> I wanted to let you know about various updates to the motmot suite of
>>>> software. I'm going to be making an effort to send update notifications
>>>> to this email list. (I apologize for neglecting this in the past!)
>>>>
>>>> = New webserver =
>>>> After an extended outage over the winter holiday period, I have moved
>>>> the website hosting to a more reliable server. I am now paying real
>>>> money for the server, so hopefully it'll be real reliable... For the
>>>> past month or two, I think it's been pretty good. Also, I only noticed
>>>> several weeks after the website switch that the email list was broken,
>>>> so if you sent and email during that period, it never made it through.
>>>> Please accept my apologies.
>>>>
>>>> = New documentation =
>>>> In case you haven't done so already, take a look at
>>>> http://code.astraw.com/projects/motmot/ . I have been making an effort
>>>> to produce some better, and more up-to-date documentation. There's still
>>>> some ways to go, but I the documentation is already greatly improved --
>>>> there is some!
>>>>
>>>> = New external trigger device with analog input =
>>>> I have released everything needed to trigger external cameras, various
>>>> other external devices, and to capture analog voltage input in an
>>>> inexpensive ($30) USB device. This is described here:
>>>> http://code.astraw.com/projects/motmot/camtrig/OVERVIEW.html
>>>>
>>>> = Manuscript on the way =
>>>> I am in the final stages of writing a manuscript about the motmot suite
>>>> of software. If you're interested in giving it a read before I submit
>>>> it, I'd appreciate any feedback. Please email me for a copy, and I'll be
>>>> happy to send you the latest version.
>>>>
>>>> = FView updates =
>>>> I added a "set view interval" menu option in the View menu. This will
>>>> allow updating the display only every Nth frame instead of every single
>>>> frame. I have found this to be useful when filming at high frame rates
>>>> (e.g. 1000 fps) to prevent the CPU from getting overloaded.
>>>>
>>>> Also, I updated FView to incorporate the API change to libcamiface (see
>>>> below).
>>>>
>>>> = libcamiface fixes and update =
>>>> I fixed a couple of bugs with the Prosilica gigabit ethernet camera
>>>> drivers in libcamiface over the last few weeks. Also, I have merged the
>>>> set_frame_offset() and set_frame_size() functions to set_frame_roi().
>>>> The same goes for the getter functions.
>>>>
>>>> = Binary releases available for Ubuntu Hardy =
>>>> All these changes are currently available on my Ubuntu Hardy repository.
>>>> See the installation instructions at
>>>> http://code.astraw.com/projects/motmot/overview.html#ubuntu-packages for
>>>> more information about this. If you are already using my Hardy
>>>> repository, you can download and install these updates by simply
>>>> clicking the update button in your menu bar.
>>>>
>>>> -Andrew
>>>>
>>>> --
>>>> Andrew D. Straw, Ph.D.
>>>> California Institute of Technology
>>>> http://www.its.caltech.edu/~astraw/
>>>>
>>>> _______________________________________________
>>>> Motmot mailing list
>>>> Motmot at code.astraw.com
>>>> http://code.astraw.com/cgi-bin/mailman/listinfo/motmot
>>>>
>>>>
>>>
>>
>> --
>> Andrew D. Straw, Ph.D.
>> California Institute of Technology
>> http://www.its.caltech.edu/~astraw/
>>
>>
> 

-- 
Andrew D. Straw, Ph.D.
California Institute of Technology
http://www.its.caltech.edu/~astraw/