Commit bf9ecd65 authored by Sebastian Dröge's avatar Sebastian Dröge 🍵

decklinkvideosrc: Don't report that we have signal until we know for sure

Previously we would've reported that there is signal unless we know for
sure that we don't have signal. For example signal would've been
reported before the device is even opened.

Now keep track whether the signal state is unknown or not and report no
signal if we don't know yet. As before, only send an INFO message about
signal recovery if we actually had a signal loss before.
parent 5c324ceb
Pipeline #48765 passed with stages
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