claincly 8b193f2bb9 Add a FrameProcessor flag to drop the processed frame
This mode is supported by using `C.TIME_UNSET` (which is a negative value). The
new logic decouples the value of `C.TIME_UNSET` and the frame dropping
behaviour.

PiperOrigin-RevId: 479368880
(cherry picked from commit 26be9ae88548bcf95327801931b3b5797304bc66)
2022-10-06 18:30:14 +00:00
..