[Gambas-user] Trying to use libmpv, but got Segmentation faults on exit

[Koko]

Benoît Minisini wrote:

> Le 18/01/2015 17:46, Benoît Minisini a écrit :
>> Le 17/01/2015 13:19, Antonio a écrit :
>>> I managed to make the project archive i'm attaching right now.
>>> You need to replace the string "loadfile videofile" with something
>>> existing on your filesystem fo course.
>>> Run the project, hit the button, wait 10 seconds, then close the form
>>> and you'll get the error on exit.
>>> Just replacing gb.qt with gb.gtk make it works.
>>> playing an audio only file will work too.
>>>
>>> thanks for looking into this,
>>>
>>> --
>>> Antonio Orefice
>>>
>>>
>>
>> Qt crashes because :
>>
>> - The libmpv library calls the X11 library inside threads.
>>
>> - The X11 library can be called from different threads only if it is
>> explicitly initialized by the XInitThreads() method.
>>
>> - Qt4 does not call this method
>>
>> The X11 documentation tells that :
>>
>> - You must call this method before every other X11 function.
>>
>> - You must call this method only if really needed (because it slows down
>> the library I imagine).
>>
>> So there is a problem: I can't know by advance that a shared library
>> used at runtime would need that...
>>
> 
> And note that gb.gtk and gb.gtk3 crash for the same reason. If it does
> not crash on your machine, it just that you are lucky.
> 
> Regards,
> 

Undesrtood and thank you for explaining that.
Any hope this would be possible by a user choice in the future?


--
Antonio