Yes, you can search for compatible elements - that's what
decodebin/decodebin2 do, for example. You might want to read the
source to those, even if there's some strange reason you have for not
wanting to directly use one of them.
> Perhaps a stupid question, but I've got a filesrc connected to a typefind
> element. On the "have-type" signal I print out the capibilities:
> "Media type video/mpeg, systemstream=(boolean)false, mpegversion=(int)4,
> parsed=(boolean)false found, probability 79%"
> But what can I do with this information? Can I search for compatible
> elements or do I have to process this manually? How do I decide what the
> next element in the pipeline should be?
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