89 lines
2.1 KiB
TypeScript
89 lines
2.1 KiB
TypeScript
import findLoudness, { SwapPoint } from "./find-loudness";
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const graph_density = 8000;
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const threshold_at_point = 1;
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const inertia_s = 0.3;
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const inertia_samples = inertia_s * graph_density;
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const s = (n: number) => n / graph_density;
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const minutes = (units: number) => Math.floor(s(units) / 60);
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const hours = (units: number) => Math.floor(units / graph_density / 60 / 60);
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const formatTime = (units: number) =>
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`${hours(units)}:${minutes(units)}:${Math.floor(s(units) % 60)}`;
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type Mode = { left: boolean; right: boolean };
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async function run() {
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const [left_breaks, right_breaks] = await Promise.all([
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findLoudness(
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"/tmp/leftraw",
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threshold_at_point,
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inertia_samples,
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"left"
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),
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findLoudness(
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"/tmp/rightraw",
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threshold_at_point,
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inertia_samples,
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"right"
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),
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]);
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const merged = [...left_breaks, ...right_breaks].sort((a, b) =>
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a.position_start < b.position_start
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? -1
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: a.position_start > b.position_start
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? 1
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: 0
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);
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// console.log("left breaks:", left_breaks);
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// console.log(`right_breaks`, right_breaks);
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// console.log(`merged`, merged);
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function new_mode(m: Mode, s: SwapPoint): Mode {
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return { ...m, [s.label]: s.loud };
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}
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function mode_to_string(mode: Mode) {
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if (mode.left && mode.right) {
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return "both";
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}
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for (const side of ["left", "right"]) {
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if (mode[side as keyof Mode]) {
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return side;
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}
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}
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return "none";
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}
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console.log("file", `${process.cwd()}/pics/none.png`);
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let last_point = 0;
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let mode: Mode = { left: false, right: false };
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let last_file;
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let total = 0;
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for (let i = 2; i < merged.length; i++) {
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const point = merged[i];
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mode = new_mode(mode, point);
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const file = `${process.cwd()}/pics/${mode_to_string(mode)}.png`;
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const duration = (point.position_start - last_point) / graph_density;
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console.log(
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"duration",
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(point.position_start - last_point) / graph_density
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);
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console.log("file", file);
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last_point = point.position_start;
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last_file = file;
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total += duration * graph_density;
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}
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console.log("duration", merged[merged.length - 1].duration / graph_density);
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console.log("file", last_file);
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console.error(total, formatTime(total));
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}
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run();
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