JavaFX, GStreamer and screen recording.

[Davide Perini]

I think that a screen recording feature opens the doors to a wide range 
of apps that aren't possible now,
I would not consider screen recording less important than video playback 
this days...

...but if this is the general consensous who am I to say the opposite.

I hope that one day Oracle will choose to put some more efforts in 
JavaFX and starts implementing new features.
There are really few new features from one release to another and JavaFX 
lacks a lot of features that modern frameworks has.

Oracle, why you never invested in JavaFX? :)
It's like if JavaFX is a minor side project, but why?

Davide

Il 23/05/2023 13:19, John Hendrikx ha scritto:
> Hi, in my opinion, JavaFX is first and foremost a framework that 
> provides an abstraction that hides the underlying implementations of 
> the platform it runs on (DirectX/3D, OpenGL but also GStreamer). 
> GStreamer is indeed currently used, but that does not mean that JavaFX 
> can expose all its functionalities as that would tie the platform to 
> this library (GStreamer is just the means to an end, but by no means 
> the only option).
>
> Instead, exposing such additional functionality would first require a 
> well researched design of how this should be abstracted in JavaFX. 
> This should/must be GStreamer independent, and may/will require 
> looking at GStreamer alternatives to come to a balanced, universally 
> applicable and future proof API design.
>
> So although I can't answer your question if such functionality will 
> ever be in JavaFX, I do think it would be a massive undertaking.  It 
> is also a relatively niche feature that most FX applications will 
> never need, so I don't think it will be soon. In the mean time, you 
> could use your own GStreamer bindings or look into OpenCV 
> (org.bytedeco.javacv). Although I haven't used this API to do what you 
> want, I do know it provides easy access to ffmpeg and computer vision 
> and camera related features.  It's a lot more complicated to use than 
> JavaFX, but should give you the flexibility you need.
>
> --John
>
> On 23/05/2023 10:42, Davide Perini wrote:
>>
>> Hi all,
>> as far as I know JavaFX uses GStreamer for the video player 
>> functionalities.
>>
>> Why don't use GStreamer for screen recording too?
>>
>> GStreamer is much faster than everything else in the Java world since 
>> it uses native APIs like Desktop Duplication API in Windows and 
>> native APIs on Mac and Linux.
>>
>> Will we ever see a real screen recording feature in JavaFX that uses 
>> GStreamer?
>>
>> Thanks
>>
>> Davide
>>