Introduce tst_qffmpegencoderthread


Add tst_qffmpegencoderthread with EOS tests.

Pick-to: 6.12
Change-Id: I0ab3acc71962d4ad154f4f4a5a17c2da322162e8
Reviewed-by: Nils Petter Skålerud <nils.petter.skalerud@qt.io>
commit48d162d1159f04963033fc51ebd43fdd9017623f
parent1ebedad1437717e92dceec931b68ef7870e47fcc
authorMikko Hallamaa <mikko.hallamaa@qt.io>
committerMikko Hallamaa <mikko.hallamaa@qt.io>
commit timeWed, 14 Oct 2026 11:08:27 +0000