FA-11274 / Media timeline seeking / Member archive

Clip concatenation offset by duration · case 04

Concatenated clips restart their timestamps at zero and overlap earlier clips.

Member previewVariant 4 · 3 implementations · 4 checks per implementation

Case contract

Clips are [duration,local timestamped frames], with nonnegative durations and local timestamps inside each clip. Concatenate timelines using full declared clip durations.

Why this case matters

A deterministic local media controller stage; metadata and downloaded data are supplied explicitly. No external player, service or codec is required.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
fixture 1	`[[0, "a"], [3, "b"], [0, "c"], [2, "d"]]`	`[[0, "a"], [3, "b"], [5, "c"], [7, "d"]]`	Failed

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

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