LENGTH has a 2 frame offset when pausing

[jesperstarkar]

Expected behaviour

LOAD/PLAY/CALL with LENGTH should make the file freeze on the correct frame, matching the number passed to LENGTH

Current behaviour

When using LENGTH-parameter, either on a LOAD-command or through CALL, the frame paused on is 2 frames prior to where it should be. I.e. "LENGTH 15" makes the output freeze on frame 13.

However, the info shown in the DIAG for the ffmpeg-consumer is correct. DIAG claims we are on the correct frame.

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Steps to reproduce

3. ...

Environment

• 2.4 (haven't tried others)
• 1080i50000 (haven't tried others)
• Consistent across a Screen consumer and a Declink (SDI) consumer (with default/minimal config)

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Screenshots

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