FA-77892 / Subtitle cue timing / Member archive

Partial subtitle resync from a point: resync scope boundary · case 02

The cue that begins exactly at the chosen resync point keeps its old timing while all later cues move.

Member previewVariant 2 · 3 implementations · 8 checks per implementation

Case contract

Cues [start,end,text] (sorted by start) whose start is at or after from_ms are shifted by offset ms (start and end). A cue whose end becomes <= 0 is dropped; a negative start is clamped to 0 without moving its end. The result is re-sorted by (start,end) and numbered from 1 as [n,start,end,text].

Why this case matters

Subtitle timing defects shift, hide or overlap captions that viewers depend on for comprehension and accessibility.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
regression: resync scope boundary	`[[1, 100, 200, "x"]]`	`[[1, 150, 250, "x"]]`	Failed

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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