Rendering to a Specific Filter

[Viberul]

Hello,

I have developed two differents filter, the first one for encoding vido data and the other one for decoding these data.
The problem I have consist of when I render the encoder output pin in the GraphEdit it doesn't connect my encoder to my decoder directly, but I have to do it by myself.

Does anybody know what I should do to achieve that it connects them automatically??

Thank you very much!!!