Just found it in the FLOSS manuals, I missed the connection between [pix_video] and [pix_rgba] before connecting that to [pix_alpha]...sorry for the hasty post.

On Mon, Feb 24, 2014 at 12:14 PM, Alexandros Drymonitis adrcki@gmail.comwrote:

I'm trying to use [pix_video] with [pix_alpha] and even though I'm sending [colorspace RGBA( to [pix_video] I get this error message. Can someone point out what I'm missing?

Thanks