Backport of "decklinkaudiosrc: Fix duration of the first audio frame after each discont" into 1.18
requested to merge tpm/gst-plugins-bad:backport-mr-1886-into-1.18-decklinkaudiosrc-first-frame-duration into 1.18
Backport of !1886 (merged) "decklinkaudiosrc: Fix duration of the first audio frame after each discont".
Commits:
- 70facfa8 decklinkaudiosrc: Fix duration of the first audio frame after each discont