[PD] videoPYLON C++ update needed

Csaba Láng langcsaba at gmail.com
Thu Aug 30 15:36:32 CEST 2018


Iohannes,

managed to make a crash, check the gdb log in the attachment.
Basically there is a Segmentation Fault.
What does it mean and how can I fix it?

On Thu, Aug 30, 2018 at 12:52 AM Csaba Láng <langcsaba at gmail.com> wrote:

> could not manage to make it crash :) jumps between devices smoothly.
> Will test it the next days, but anyway
> I big thanks to you! It looks amazing.
> Now I test with 227fps.
>
> On Thu, Aug 30, 2018 at 12:28 AM IOhannes m zmölnig <zmoelnig at iem.at>
> wrote:
>
>> On 8/29/18 11:35 PM, Csaba Láng wrote:
>> >
>> > The other problem is that can not identify within pd the cameras.
>> > Anything I send to pix_video, fails.
>> > I called the cams test1 and test2, however [device test1( does not work,
>> > therefor enumerate as well or enumProp.
>>
>> ???
>>
>> > It says that a valid device is
>> > needed, but f I have an image from the camera at startup the patch, why
>> I
>> > cannot enumerate it.
>>
>> you need a valid device for [enumProps(, but not for [enumerate(.
>> you need to hook something like a [print] to the 2nd outlet of
>> [pix_video] in order to get anything meaningful from these messages.
>>
>> >
>> > unfortunately did not understand your gdb or microsleep select advices.
>> > please specify
>>
>> Pd prints an error like "microsleep select: Interrupted system call" on
>> the console before it hangs here. does something similar happen?
>>
>> about gdb, something like this should do the trick (i'm sure i've posted
>> this before):
>>
>> ~~~
>> $ gdb --args pd -nrt -stderr -lib /path/to/Gen /path/to/pix_video-help.pd
>> [...]
>> (gdb) thread apply all bt
>> (gdb) run
>> [...make it crash...]
>> (gdb) bt
>> [...paste the following outputet]
>> (gdb) quit
>> ~~~
>>
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>
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