GstBaseTransform::set_caps problem

[Abdumuminov, Umedzhon]

Hi guys,

 

We created some plugins that inherited from GstBaseTransform and implemented set_caps. Also, we have some properties that are in use in set_caps.

So, the question is:

 

Is it expected that set_caps called before first initialization of plugin’s properties?

If so, can we prevent calling set_caps before properties assignment? I mean is there any built-in mechanism to do so.

 

Best regards

Umed

 

--------------------------------------------------------------------
Joint Stock Company Intel A/O
Registered legal address: Krylatsky Hills Business Park,
17 Krylatskaya Str., Bldg 4, Moscow 121614,
Russian Federation

This e-mail and any attachments may contain confidential material for
the sole use of the intended recipient(s). Any review or distribution
by others is strictly prohibited. If you are not the intended
recipient, please contact the sender and delete all copies.

_______________________________________________
gstreamer-devel mailing list
[hidden email]
https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

[Nicolas Dufresne-5]

Le mercredi 17 juillet 2019 à 13:38 +0000, Abdumuminov, Umedzhon a
écrit :
> Hi guys,
>  
> We created some plugins that inherited from GstBaseTransform and implemented set_caps. Also, we have some properties that are in use in set_caps.
> So, the question is:
>  
> Is it expected that set_caps called before first initialization of plugin’s properties?
> If so, can we prevent calling set_caps before properties assignment? I mean is there any built-in mechanism to do so.

Properties can be set at any time, through gst-launch though, they will
be set before. The element should protect against run-time property
changes if that isn't supported. We have property caps to indicate in
which state a properly can be used, though this is not enforced.

>  
> Best regards
> Umed
>  
>
> --------------------------------------------------------------------
> Joint Stock Company Intel A/O
> Registered legal address: Krylatsky Hills Business Park,
> 17 Krylatskaya Str., Bldg 4, Moscow 121614,
> Russian Federation
>
> This e-mail and any attachments may contain confidential material for
> the sole use of the intended recipient(s). Any review or distribution
> by others is strictly prohibited. If you are not the intended
> recipient, please contact the sender and delete all copies.
>
> _______________________________________________
> gstreamer-devel mailing list
> [hidden email]
> https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

_______________________________________________
gstreamer-devel mailing list
[hidden email]
https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel