imageSequenceFrameIndex
imageSequenceFrameIndex(
sequence,itemTimeUs):number|undefined
Defined in: packages/project-schema/src/image-sequence.ts:11
Map an item time to the image-sequence frame whose interval contains it.
Frames are uniform-duration and contiguous starting at zero. The mapping is
deterministic and integer-based so preview and export agree on every frame
boundary. Returns undefined when itemTimeUs is negative or at/after the
last frame boundary, which callers must treat as fail-closed.
Parameters
Section titled “Parameters”sequence
Section titled “sequence”itemTimeUs
Section titled “itemTimeUs”number
Returns
Section titled “Returns”number | undefined