Matthew Waters 06c344d43a decklinkvideosink: provide default values when HDR metadata is not available
Some file format standards don't require mastering-display-info
and content-light-level values to be provided.

Decklink however requires the static HDR metdata for the PQ transfer
function which we may not have.

CTA-861-G mentions that in this case, 0 may provided as an 'unknown'
value which is what we use here.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7742>
2024-10-30 03:47:13 +00:00
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