Problem
Live stream chapters or markers are missing from the final VOD because segment timestamps were not preserved.
Solution
Root Cause / Diagnostic:
Live broadcasts generate dynamic relative timestamps that do not automatically map to absolute VOD elapsed time if pre-stream holding screens or encoder start offsets are present. Failure to log real-time timecode markers against the YouTube ingest stream clock leaves the production team without calibrated chapter references during post-stream VOD processing.
Actionable Fix:
1. Calibrate an automated logging macro in OBS/vMix (via Elgato Stream Deck or OSC timecode bridge) that records elapsed broadcast seconds starting precisely at 00:00:00 when YouTube transitions from "Starting" to "Live".
2. Ensure the first chapter starts strictly at 00:00 with at least three subsequent chapters spaced by a minimum of 10 seconds each in the VOD description metadata template.
3. Verify upon stream conclusion in YouTube Studio > Video Details that the description timestamp array precisely matches the trimmed VOD timeline before public publication.
Pro Tip:
Use an NDI-based timecode HUD or local multi-track recording timestamp track so you can instantly extract chapter marks directly from your editing timeline markers via an EDL export script.
Live broadcasts generate dynamic relative timestamps that do not automatically map to absolute VOD elapsed time if pre-stream holding screens or encoder start offsets are present. Failure to log real-time timecode markers against the YouTube ingest stream clock leaves the production team without calibrated chapter references during post-stream VOD processing.
Actionable Fix:
1. Calibrate an automated logging macro in OBS/vMix (via Elgato Stream Deck or OSC timecode bridge) that records elapsed broadcast seconds starting precisely at 00:00:00 when YouTube transitions from "Starting" to "Live".
2. Ensure the first chapter starts strictly at 00:00 with at least three subsequent chapters spaced by a minimum of 10 seconds each in the VOD description metadata template.
3. Verify upon stream conclusion in YouTube Studio > Video Details that the description timestamp array precisely matches the trimmed VOD timeline before public publication.
Pro Tip:
Use an NDI-based timecode HUD or local multi-track recording timestamp track so you can instantly extract chapter marks directly from your editing timeline markers via an EDL export script.