Thank you for your reply.

>> I thought I could use
>> a "multi" 
consumer, but ...
>
> That will not work. MLT does not have a general 
tee-like component.

> I have never tried to do what you are doing, but 
I think you are going to
> have to compose and run distinct graphs: one 
that is unfiltered and another
> that is filtered and attach a consumer 
to each.

Yes, that was the idea, but how can I compose distinct graphs 
if there is not a tee component? I could try to write one, but in my 
plans that was ahead in time.

> Alternatively, you could
> write a new 
filter that stores a snapshot of the frame's current image to
> some 
unique property. Add this filter before all other filters. Then, when
> 
the consumer emits a frame-displayed event, get this snapshot image 
from
> the frame to display in another window.

Also this idea seems 
viable. I would try the "distinct graphs" way first, if you tell me how 
to do it. If that fails, I will try the filter way.

Have a nice day, 
regards,
linuxfan




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