Add ffmpegPath option (#1933)

* Add ffmpegPath option

* Reorder ffmpegPath option to the top

* Test for ffmpeg

* Add: ffmpeg tests

* Remove useless imports

Author: retrouser955

packages/discord-player/__test__/Player.spec.ts

@@ -1,4 +1,4 @@
-import { afterEach, describe, expect, it } from 'vitest';
+import { afterEach, describe, expect, it, test } from 'vitest';
 import { Player, SearchResult } from '../src/index';
 import { Client, IntentsBitField } from 'discord.js';
 
@@ -38,4 +38,14 @@ describe('Player', () => {
 
         expect(response).toBeInstanceOf(SearchResult);
     });
+
+    test("should set process.env.FFMPEG_PATH to given path", () => {
+        // not actual ffmpeg path. just dummy
+        new Player(client, {
+            ffmpegPath: "./packages/ffmpeg",
+            ignoreInstance: true
+        })
+      
+        expect(process.env.FFMPEG_PATH).toBe("./packages/ffmpeg")
+    })
 });

packages/discord-player/src/Player.ts

@@ -104,6 +104,12 @@ export class Player extends PlayerEventsEmitter<PlayerEvents> {
 
         super([PlayerEvent.Error]);
 
+        if(options.ffmpegPath) {
+            if(typeof options.ffmpegPath !== "string") throw new TypeError(`Expected type "string" for options.ffmpegPath. Got ${typeof options.ffmpegPath} instead`)
+
+            process.env.FFMPEG_PATH = options.ffmpegPath
+        }
+
         /**
          * The discord.js client
          * @type {Client}

packages/discord-player/src/types/types.ts

@@ -531,4 +531,8 @@ export interface PlayerInitOptions {
      * The probe timeout in milliseconds. Defaults to 5000.
      */
     probeTimeout?: number;
+    /**
+     * Configure ffmpeg path
+     */
+    ffmpegPath?: string;
 }