How to change the blur dynmaticaly in program or CMD input?

[anson]

Hi ALL:
I am a programmer, and going to embedded and use vlc in my application, one of my requirement is to set/change the video's image to "blur", and can dynmaticaly change the blur level (etc, from clear to very blur) , and from the latest VLC player, I can see the VLC had "motion blur" filter setting and can dynmaticaly change the blur value (0~127), But I only know from the CMD (console input) ,we can set the "blur" by "vlc --video-filter motionblur --blur-factor 120 XXX.mp4" to indicate the blur level in particular value, but all I want to know is while the video is playing, how can I change the blur value dynmatically? from CMD or programmaly is OK. thanks in advance.

[Rémi Denis-Courmont]

You'd have to extend the code to support that.

[anson]

How can I extend the code to support that? is there any interface or reference documents we can use ?

[Jean-Baptiste Kempf]

Yes, the wiki hacker guide.