mirror of
https://github.com/ksyasuda/SubMiner.git
synced 2026-02-27 18:22:41 -08:00
773 lines
21 KiB
TypeScript
773 lines
21 KiB
TypeScript
import fs from "node:fs";
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import path from "node:path";
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import os from "node:os";
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import net from "node:net";
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import { spawn, spawnSync } from "node:child_process";
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import type { LogLevel, Backend, Args, MpvTrack } from "./types.js";
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import { DEFAULT_MPV_SUBMINER_ARGS, DEFAULT_YOUTUBE_YTDL_FORMAT } from "./types.js";
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import { log, fail, getMpvLogPath } from "./log.js";
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import {
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commandExists, isExecutable, resolveBinaryPathCandidate,
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realpathMaybe, isYoutubeTarget, uniqueNormalizedLangCodes, sleep, normalizeLangCode,
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} from "./util.js";
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export const state = {
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overlayProc: null as ReturnType<typeof spawn> | null,
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mpvProc: null as ReturnType<typeof spawn> | null,
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youtubeSubgenChildren: new Set<ReturnType<typeof spawn>>(),
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appPath: "" as string,
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overlayManagedByLauncher: false,
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stopRequested: false,
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};
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const DETACHED_IDLE_MPV_PID_FILE = path.join(
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os.tmpdir(),
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"subminer-idle-mpv.pid",
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);
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function readTrackedDetachedMpvPid(): number | null {
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try {
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const raw = fs.readFileSync(DETACHED_IDLE_MPV_PID_FILE, "utf8").trim();
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const pid = Number.parseInt(raw, 10);
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return Number.isInteger(pid) && pid > 0 ? pid : null;
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} catch {
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return null;
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}
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}
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function clearTrackedDetachedMpvPid(): void {
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try {
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fs.rmSync(DETACHED_IDLE_MPV_PID_FILE, { force: true });
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} catch {
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// ignore
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}
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}
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function trackDetachedMpvPid(pid: number): void {
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try {
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fs.writeFileSync(DETACHED_IDLE_MPV_PID_FILE, String(pid), "utf8");
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} catch {
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// ignore
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}
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}
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function isProcessAlive(pid: number): boolean {
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try {
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process.kill(pid, 0);
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return true;
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} catch {
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return false;
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}
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}
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function processLooksLikeMpv(pid: number): boolean {
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if (process.platform !== "linux") return true;
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try {
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const cmdline = fs.readFileSync(`/proc/${pid}/cmdline`, "utf8");
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return cmdline.includes("mpv");
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} catch {
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return false;
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}
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}
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async function terminateTrackedDetachedMpv(logLevel: LogLevel): Promise<void> {
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const pid = readTrackedDetachedMpvPid();
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if (!pid) return;
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if (!isProcessAlive(pid)) {
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clearTrackedDetachedMpvPid();
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return;
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}
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if (!processLooksLikeMpv(pid)) {
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clearTrackedDetachedMpvPid();
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return;
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}
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try {
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process.kill(pid, "SIGTERM");
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} catch {
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clearTrackedDetachedMpvPid();
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return;
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}
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const deadline = Date.now() + 1500;
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while (Date.now() < deadline) {
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if (!isProcessAlive(pid)) {
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clearTrackedDetachedMpvPid();
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return;
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}
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await sleep(100);
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}
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try {
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process.kill(pid, "SIGKILL");
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} catch {
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// ignore
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}
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clearTrackedDetachedMpvPid();
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log("debug", logLevel, `Terminated stale detached mpv pid=${pid}`);
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}
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export function makeTempDir(prefix: string): string {
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return fs.mkdtempSync(path.join(os.tmpdir(), prefix));
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}
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export function detectBackend(backend: Backend): Exclude<Backend, "auto"> {
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if (backend !== "auto") return backend;
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if (process.platform === "darwin") return "macos";
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const xdgCurrentDesktop = (process.env.XDG_CURRENT_DESKTOP || "").toLowerCase();
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const xdgSessionDesktop = (process.env.XDG_SESSION_DESKTOP || "").toLowerCase();
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const xdgSessionType = (process.env.XDG_SESSION_TYPE || "").toLowerCase();
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const hasWayland = Boolean(process.env.WAYLAND_DISPLAY) || xdgSessionType === "wayland";
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if (
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process.env.HYPRLAND_INSTANCE_SIGNATURE ||
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xdgCurrentDesktop.includes("hyprland") ||
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xdgSessionDesktop.includes("hyprland")
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) {
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return "hyprland";
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}
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if (hasWayland && commandExists("hyprctl")) return "hyprland";
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if (process.env.DISPLAY) return "x11";
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fail("Could not detect display backend");
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}
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function resolveMacAppBinaryCandidate(candidate: string): string {
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const direct = resolveBinaryPathCandidate(candidate);
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if (!direct) return "";
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if (process.platform !== "darwin") {
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return isExecutable(direct) ? direct : "";
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}
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if (isExecutable(direct)) {
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return direct;
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}
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const appIndex = direct.indexOf(".app/");
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const appPath =
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direct.endsWith(".app") && direct.includes(".app")
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? direct
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: appIndex >= 0
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? direct.slice(0, appIndex + ".app".length)
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: "";
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if (!appPath) return "";
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const candidates = [
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path.join(appPath, "Contents", "MacOS", "SubMiner"),
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path.join(appPath, "Contents", "MacOS", "subminer"),
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];
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for (const candidateBinary of candidates) {
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if (isExecutable(candidateBinary)) {
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return candidateBinary;
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}
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}
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return "";
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}
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export function findAppBinary(selfPath: string): string | null {
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const envPaths = [
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process.env.SUBMINER_APPIMAGE_PATH,
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process.env.SUBMINER_BINARY_PATH,
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].filter((candidate): candidate is string => Boolean(candidate));
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for (const envPath of envPaths) {
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const resolved = resolveMacAppBinaryCandidate(envPath);
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if (resolved) {
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return resolved;
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}
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}
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const candidates: string[] = [];
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if (process.platform === "darwin") {
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candidates.push("/Applications/SubMiner.app/Contents/MacOS/SubMiner");
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candidates.push("/Applications/SubMiner.app/Contents/MacOS/subminer");
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candidates.push(
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path.join(
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os.homedir(),
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"Applications/SubMiner.app/Contents/MacOS/SubMiner",
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),
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);
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candidates.push(
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path.join(
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os.homedir(),
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"Applications/SubMiner.app/Contents/MacOS/subminer",
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),
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);
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}
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candidates.push(path.join(os.homedir(), ".local/bin/SubMiner.AppImage"));
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candidates.push("/opt/SubMiner/SubMiner.AppImage");
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for (const candidate of candidates) {
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if (isExecutable(candidate)) return candidate;
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}
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const fromPath = process.env.PATH?.split(path.delimiter)
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.map((dir) => path.join(dir, "subminer"))
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.find((candidate) => isExecutable(candidate));
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if (fromPath) {
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const resolvedSelf = realpathMaybe(selfPath);
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const resolvedCandidate = realpathMaybe(fromPath);
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if (resolvedSelf !== resolvedCandidate) return fromPath;
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}
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return null;
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}
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export function sendMpvCommand(socketPath: string, command: unknown[]): Promise<void> {
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return new Promise((resolve, reject) => {
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const socket = net.createConnection(socketPath);
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socket.once("connect", () => {
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socket.write(`${JSON.stringify({ command })}\n`);
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socket.end();
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resolve();
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});
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socket.once("error", (error) => {
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reject(error);
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});
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});
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}
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interface MpvResponseEnvelope {
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request_id?: number;
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error?: string;
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data?: unknown;
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}
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export function sendMpvCommandWithResponse(
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socketPath: string,
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command: unknown[],
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timeoutMs = 5000,
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): Promise<unknown> {
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return new Promise((resolve, reject) => {
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const requestId = Date.now() + Math.floor(Math.random() * 1000);
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const socket = net.createConnection(socketPath);
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let buffer = "";
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const cleanup = (): void => {
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try {
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socket.destroy();
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} catch {
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// ignore
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}
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};
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const timer = setTimeout(() => {
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cleanup();
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reject(new Error(`MPV command timed out after ${timeoutMs}ms`));
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}, timeoutMs);
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const finish = (value: unknown): void => {
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clearTimeout(timer);
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cleanup();
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resolve(value);
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};
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socket.once("connect", () => {
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const message = JSON.stringify({ command, request_id: requestId });
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socket.write(`${message}\n`);
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});
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socket.on("data", (chunk: Buffer) => {
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buffer += chunk.toString();
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const lines = buffer.split(/\r?\n/);
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buffer = lines.pop() ?? "";
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for (const line of lines) {
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if (!line.trim()) continue;
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let parsed: MpvResponseEnvelope;
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try {
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parsed = JSON.parse(line);
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} catch {
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continue;
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}
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if (parsed.request_id !== requestId) continue;
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if (parsed.error && parsed.error !== "success") {
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reject(new Error(`MPV error: ${parsed.error}`));
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cleanup();
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clearTimeout(timer);
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return;
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}
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finish(parsed.data);
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return;
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}
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});
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socket.once("error", (error) => {
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clearTimeout(timer);
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cleanup();
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reject(error);
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});
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});
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}
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export async function getMpvTracks(socketPath: string): Promise<MpvTrack[]> {
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const response = await sendMpvCommandWithResponse(
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socketPath,
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["get_property", "track-list"],
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8000,
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);
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if (!Array.isArray(response)) return [];
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return response
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.filter((track): track is MpvTrack => {
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if (!track || typeof track !== "object") return false;
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const candidate = track as Record<string, unknown>;
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return candidate.type === "sub";
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})
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.map((track) => {
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const candidate = track as Record<string, unknown>;
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return {
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type:
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typeof candidate.type === "string" ? candidate.type : undefined,
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id:
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typeof candidate.id === "number"
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? candidate.id
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: typeof candidate.id === "string"
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? Number.parseInt(candidate.id, 10)
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: undefined,
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lang:
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typeof candidate.lang === "string" ? candidate.lang : undefined,
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title:
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typeof candidate.title === "string" ? candidate.title : undefined,
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};
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});
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}
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function isPreferredStreamLang(candidate: string, preferred: string[]): boolean {
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const normalized = normalizeLangCode(candidate);
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if (!normalized) return false;
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if (preferred.includes(normalized)) return true;
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if (normalized === "ja" && preferred.includes("jpn")) return true;
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if (normalized === "jpn" && preferred.includes("ja")) return true;
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if (normalized === "en" && preferred.includes("eng")) return true;
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if (normalized === "eng" && preferred.includes("en")) return true;
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return false;
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}
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export function findPreferredSubtitleTrack(
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tracks: MpvTrack[],
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preferredLanguages: string[],
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): MpvTrack | null {
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const normalizedPreferred = uniqueNormalizedLangCodes(preferredLanguages);
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const subtitleTracks = tracks.filter((track) => track.type === "sub");
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if (normalizedPreferred.length === 0) return subtitleTracks[0] ?? null;
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for (const lang of normalizedPreferred) {
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const matched = subtitleTracks.find(
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(track) => track.lang && isPreferredStreamLang(track.lang, [lang]),
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);
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if (matched) return matched;
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}
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return null;
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}
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export async function waitForSubtitleTrackList(
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socketPath: string,
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logLevel: LogLevel,
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): Promise<MpvTrack[]> {
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const maxAttempts = 40;
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for (let attempt = 1; attempt <= maxAttempts; attempt += 1) {
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const tracks = await getMpvTracks(socketPath).catch(() => [] as MpvTrack[]);
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if (tracks.length > 0) return tracks;
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if (attempt % 10 === 0) {
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log(
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"debug",
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logLevel,
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`Waiting for mpv tracks (${attempt}/${maxAttempts})`,
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);
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}
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await sleep(250);
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}
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return [];
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}
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export async function loadSubtitleIntoMpv(
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socketPath: string,
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subtitlePath: string,
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select: boolean,
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logLevel: LogLevel,
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): Promise<void> {
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for (let attempt = 1; ; attempt += 1) {
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const mpvExited =
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state.mpvProc !== null &&
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state.mpvProc.exitCode !== null &&
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state.mpvProc.exitCode !== undefined;
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if (mpvExited) {
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throw new Error(`mpv exited before subtitle could be loaded: ${subtitlePath}`);
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}
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if (!fs.existsSync(socketPath)) {
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if (attempt % 20 === 0) {
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log(
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"debug",
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logLevel,
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`Waiting for mpv socket before loading subtitle (${attempt} attempts): ${path.basename(subtitlePath)}`,
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);
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}
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await sleep(250);
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continue;
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}
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try {
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await sendMpvCommand(
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socketPath,
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select ? ["sub-add", subtitlePath, "select"] : ["sub-add", subtitlePath],
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);
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log(
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"info",
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logLevel,
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`Loaded generated subtitle into mpv: ${path.basename(subtitlePath)}`,
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);
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return;
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} catch {
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if (attempt % 20 === 0) {
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log(
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"debug",
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logLevel,
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`Retrying subtitle load into mpv (${attempt} attempts): ${path.basename(subtitlePath)}`,
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);
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}
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await sleep(250);
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}
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}
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}
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export function waitForSocket(
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socketPath: string,
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timeoutMs = 10000,
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): Promise<boolean> {
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const start = Date.now();
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return new Promise((resolve) => {
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const timer = setInterval(() => {
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if (fs.existsSync(socketPath)) {
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clearInterval(timer);
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resolve(true);
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return;
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}
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if (Date.now() - start >= timeoutMs) {
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clearInterval(timer);
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resolve(false);
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}
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}, 100);
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});
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}
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export function startMpv(
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target: string,
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targetKind: "file" | "url",
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args: Args,
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socketPath: string,
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appPath: string,
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preloadedSubtitles?: { primaryPath?: string; secondaryPath?: string },
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): void {
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if (
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targetKind === "file" &&
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(!fs.existsSync(target) || !fs.statSync(target).isFile())
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) {
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fail(`Video file not found: ${target}`);
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}
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if (targetKind === "url") {
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log("info", args.logLevel, `Playing URL: ${target}`);
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} else {
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log("info", args.logLevel, `Playing: ${path.basename(target)}`);
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}
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const mpvArgs: string[] = [];
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if (args.profile) mpvArgs.push(`--profile=${args.profile}`);
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mpvArgs.push(...DEFAULT_MPV_SUBMINER_ARGS);
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if (targetKind === "url" && isYoutubeTarget(target)) {
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log("info", args.logLevel, "Applying URL playback options");
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mpvArgs.push("--ytdl=yes", "--ytdl-raw-options=");
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if (isYoutubeTarget(target)) {
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const subtitleLangs = uniqueNormalizedLangCodes([
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...args.youtubePrimarySubLangs,
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...args.youtubeSecondarySubLangs,
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]).join(",");
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const audioLangs = uniqueNormalizedLangCodes(args.youtubeAudioLangs).join(",");
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log("info", args.logLevel, "Applying YouTube playback options");
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log("debug", args.logLevel, `YouTube subtitle langs: ${subtitleLangs}`);
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log("debug", args.logLevel, `YouTube audio langs: ${audioLangs}`);
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mpvArgs.push(
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`--ytdl-format=${DEFAULT_YOUTUBE_YTDL_FORMAT}`,
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`--alang=${audioLangs}`,
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);
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if (args.youtubeSubgenMode === "off") {
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mpvArgs.push(
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"--sub-auto=fuzzy",
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`--slang=${subtitleLangs}`,
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"--ytdl-raw-options-append=write-auto-subs=",
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"--ytdl-raw-options-append=write-subs=",
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"--ytdl-raw-options-append=sub-format=vtt/best",
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`--ytdl-raw-options-append=sub-langs=${subtitleLangs}`,
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);
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}
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}
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}
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if (preloadedSubtitles?.primaryPath) {
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mpvArgs.push(`--sub-file=${preloadedSubtitles.primaryPath}`);
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}
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if (preloadedSubtitles?.secondaryPath) {
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mpvArgs.push(`--sub-file=${preloadedSubtitles.secondaryPath}`);
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}
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mpvArgs.push(
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`--script-opts=subminer-binary_path=${appPath},subminer-socket_path=${socketPath}`,
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);
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mpvArgs.push(`--log-file=${getMpvLogPath()}`);
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try {
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fs.rmSync(socketPath, { force: true });
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} catch {
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// ignore
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}
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mpvArgs.push(`--input-ipc-server=${socketPath}`);
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mpvArgs.push(target);
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state.mpvProc = spawn("mpv", mpvArgs, { stdio: "inherit" });
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}
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export function startOverlay(
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appPath: string,
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args: Args,
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socketPath: string,
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): Promise<void> {
|
|
const backend = detectBackend(args.backend);
|
|
log(
|
|
"info",
|
|
args.logLevel,
|
|
`Starting SubMiner overlay (backend: ${backend})...`,
|
|
);
|
|
|
|
const overlayArgs = ["--start", "--backend", backend, "--socket", socketPath];
|
|
if (args.logLevel !== "info")
|
|
overlayArgs.push("--log-level", args.logLevel);
|
|
if (args.useTexthooker) overlayArgs.push("--texthooker");
|
|
|
|
state.overlayProc = spawn(appPath, overlayArgs, {
|
|
stdio: "inherit",
|
|
env: { ...process.env, SUBMINER_MPV_LOG: getMpvLogPath() },
|
|
});
|
|
state.overlayManagedByLauncher = true;
|
|
|
|
return new Promise((resolve) => {
|
|
setTimeout(resolve, 2000);
|
|
});
|
|
}
|
|
|
|
export function launchTexthookerOnly(appPath: string, args: Args): never {
|
|
const overlayArgs = ["--texthooker"];
|
|
if (args.logLevel !== "info")
|
|
overlayArgs.push("--log-level", args.logLevel);
|
|
|
|
log("info", args.logLevel, "Launching texthooker mode...");
|
|
const result = spawnSync(appPath, overlayArgs, { stdio: "inherit" });
|
|
process.exit(result.status ?? 0);
|
|
}
|
|
|
|
export function stopOverlay(args: Args): void {
|
|
if (state.stopRequested) return;
|
|
state.stopRequested = true;
|
|
|
|
if (state.overlayManagedByLauncher && state.appPath) {
|
|
log("info", args.logLevel, "Stopping SubMiner overlay...");
|
|
|
|
const stopArgs = ["--stop"];
|
|
if (args.logLevel !== "info")
|
|
stopArgs.push("--log-level", args.logLevel);
|
|
|
|
spawnSync(state.appPath, stopArgs, { stdio: "ignore" });
|
|
|
|
if (state.overlayProc && !state.overlayProc.killed) {
|
|
try {
|
|
state.overlayProc.kill("SIGTERM");
|
|
} catch {
|
|
// ignore
|
|
}
|
|
}
|
|
}
|
|
|
|
if (state.mpvProc && !state.mpvProc.killed) {
|
|
try {
|
|
state.mpvProc.kill("SIGTERM");
|
|
} catch {
|
|
// ignore
|
|
}
|
|
}
|
|
|
|
for (const child of state.youtubeSubgenChildren) {
|
|
if (!child.killed) {
|
|
try {
|
|
child.kill("SIGTERM");
|
|
} catch {
|
|
// ignore
|
|
}
|
|
}
|
|
}
|
|
state.youtubeSubgenChildren.clear();
|
|
|
|
void terminateTrackedDetachedMpv(args.logLevel);
|
|
}
|
|
|
|
function buildAppEnv(): NodeJS.ProcessEnv {
|
|
const env: Record<string, string | undefined> = { ...process.env, SUBMINER_MPV_LOG: getMpvLogPath() };
|
|
const layers = env.VK_INSTANCE_LAYERS;
|
|
if (typeof layers === "string" && layers.trim().length > 0) {
|
|
const filtered = layers
|
|
.split(":")
|
|
.map((part) => part.trim())
|
|
.filter((part) => part.length > 0 && !/lsfg/i.test(part));
|
|
if (filtered.length > 0) {
|
|
env.VK_INSTANCE_LAYERS = filtered.join(":");
|
|
} else {
|
|
delete env.VK_INSTANCE_LAYERS;
|
|
}
|
|
}
|
|
return env;
|
|
}
|
|
|
|
export function runAppCommandWithInherit(
|
|
appPath: string,
|
|
appArgs: string[],
|
|
): never {
|
|
const result = spawnSync(appPath, appArgs, {
|
|
stdio: "inherit",
|
|
env: buildAppEnv(),
|
|
});
|
|
if (result.error) {
|
|
fail(`Failed to run app command: ${result.error.message}`);
|
|
}
|
|
process.exit(result.status ?? 0);
|
|
}
|
|
|
|
export function runAppCommandWithInheritLogged(
|
|
appPath: string,
|
|
appArgs: string[],
|
|
logLevel: LogLevel,
|
|
label: string,
|
|
): never {
|
|
log("debug", logLevel, `${label}: launching app with args: ${appArgs.join(" ")}`);
|
|
const result = spawnSync(appPath, appArgs, {
|
|
stdio: "inherit",
|
|
env: buildAppEnv(),
|
|
});
|
|
if (result.error) {
|
|
fail(`Failed to run app command: ${result.error.message}`);
|
|
}
|
|
log(
|
|
"debug",
|
|
logLevel,
|
|
`${label}: app command exited with status ${result.status ?? 0}`,
|
|
);
|
|
process.exit(result.status ?? 0);
|
|
}
|
|
|
|
export function launchAppStartDetached(appPath: string, logLevel: LogLevel): void {
|
|
const startArgs = ["--start"];
|
|
if (logLevel !== "info") startArgs.push("--log-level", logLevel);
|
|
const proc = spawn(appPath, startArgs, {
|
|
stdio: "ignore",
|
|
detached: true,
|
|
env: buildAppEnv(),
|
|
});
|
|
proc.unref();
|
|
}
|
|
|
|
export function launchMpvIdleDetached(
|
|
socketPath: string,
|
|
appPath: string,
|
|
args: Args,
|
|
): Promise<void> {
|
|
return (async () => {
|
|
await terminateTrackedDetachedMpv(args.logLevel);
|
|
try {
|
|
fs.rmSync(socketPath, { force: true });
|
|
} catch {
|
|
// ignore
|
|
}
|
|
|
|
const mpvArgs: string[] = [];
|
|
if (args.profile) mpvArgs.push(`--profile=${args.profile}`);
|
|
mpvArgs.push(...DEFAULT_MPV_SUBMINER_ARGS);
|
|
mpvArgs.push("--idle=yes");
|
|
mpvArgs.push(
|
|
`--script-opts=subminer-binary_path=${appPath},subminer-socket_path=${socketPath}`,
|
|
);
|
|
mpvArgs.push(`--log-file=${getMpvLogPath()}`);
|
|
mpvArgs.push(`--input-ipc-server=${socketPath}`);
|
|
const proc = spawn("mpv", mpvArgs, {
|
|
stdio: "ignore",
|
|
detached: true,
|
|
});
|
|
if (typeof proc.pid === "number" && proc.pid > 0) {
|
|
trackDetachedMpvPid(proc.pid);
|
|
}
|
|
proc.unref();
|
|
})();
|
|
}
|
|
|
|
async function sleepMs(ms: number): Promise<void> {
|
|
await new Promise<void>((resolve) => setTimeout(resolve, ms));
|
|
}
|
|
|
|
async function waitForPathExists(
|
|
filePath: string,
|
|
timeoutMs: number,
|
|
): Promise<boolean> {
|
|
const deadline = Date.now() + timeoutMs;
|
|
while (Date.now() < deadline) {
|
|
try {
|
|
if (fs.existsSync(filePath)) return true;
|
|
} catch {
|
|
// ignore transient fs errors
|
|
}
|
|
await sleepMs(150);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
async function canConnectUnixSocket(socketPath: string): Promise<boolean> {
|
|
return await new Promise<boolean>((resolve) => {
|
|
const socket = net.createConnection(socketPath);
|
|
let settled = false;
|
|
|
|
const finish = (value: boolean) => {
|
|
if (settled) return;
|
|
settled = true;
|
|
try {
|
|
socket.destroy();
|
|
} catch {
|
|
// ignore
|
|
}
|
|
resolve(value);
|
|
};
|
|
|
|
socket.once("connect", () => finish(true));
|
|
socket.once("error", () => finish(false));
|
|
socket.setTimeout(400, () => finish(false));
|
|
});
|
|
}
|
|
|
|
export async function waitForUnixSocketReady(
|
|
socketPath: string,
|
|
timeoutMs: number,
|
|
): Promise<boolean> {
|
|
const deadline = Date.now() + timeoutMs;
|
|
while (Date.now() < deadline) {
|
|
const exists = await waitForPathExists(socketPath, 300);
|
|
if (exists) {
|
|
const ready = await canConnectUnixSocket(socketPath);
|
|
if (ready) return true;
|
|
}
|
|
await sleepMs(150);
|
|
}
|
|
return false;
|
|
}
|