@thi.ng/date/timecode.js

Datetime types, relative dates, math, iterators, composable formatters, locales

import { Z2, Z3, Z4 } from "@thi.ng/strings/pad-left";
import { decomposeDuration } from "./duration.js";
const defTimecode = (fps, opts = {}) => {
  const {
    sep = "::::",
    day = false,
    hour = true,
    frame: useFrame = true
  } = opts;
  const frame = 1e3 / fps;
  const $sep = (x) => sep[x] ?? ":";
  const fmtFrame = fps < 100 ? Z2 : fps < 1e3 ? Z3 : Z4;
  return (t) => {
    const [_, __, d, h, m, s, ms] = decomposeDuration(t);
    let parts = "";
    if (d || day) parts += Z2(d) + $sep(0);
    if (h || d || day || hour) parts += Z2(h) + $sep(1);
    parts += Z2(m) + $sep(2) + Z2(s);
    if (useFrame) parts += $sep(3) + fmtFrame(ms / frame | 0);
    return parts;
  };
};
export {
  defTimecode
};