–

[repo] desacoplamento e maior coesão

src/download/audio.js

@@ -0,0 +1,24 @@
+import { get_video } from "./video.js";
+import { spawn } from "child_process";
+import os from "os";
+
+const so = os.platform();
+
+export async function get_audio(url, id) {
+    const video = await get_video(url, id);
+    const output = `downloads/${id}.mp3`;
+    const cmd = so === "win32" ? ".\\bin\\ffmpeg.exe" : "./bin/ffmpeg";
+    const args = ['-i', video, '-vn', '-acodec', 'libmp3lame', '-q:a', '2', output];
+
+    await runCmd(cmd, args);
+    return output;
+}
+
+async function runCmd(cmd, args) {
+    return new Promise((resolve, reject) => {
+        const proc = spawn(cmd, args);
+        proc.stdout.on("data", data => console.log("[cmd]", data.toString()));
+        proc.stderr.on("data", data => console.error("[cmd ERR]", data.toString()));
+        proc.on("close", code => code === 0 ? resolve() : reject(new Error("Processo saiu com código "+code)));
+    });
+}