Fix tenc fallback for encrypted ISOBMFF files (#470)

* fix tenc fallback * Add test case --------- Co-authored-by: Vanilagy <[email protected]>
2026-09-27 10:53:50 +02:00 · 2026-08-24 14:12:04 +02:00
parent 394eede178
commit 0f9dc1f91b
3 changed files with 60 additions and 11 deletions
@@ -0,0 +1,27 @@
+import { expect, test } from 'vitest';
+import { Input } from '../../src/input.js';
+import { UrlSource } from '../../src/source.js';
+import { ALL_FORMATS } from '../../src/input-format.js';
+import { AudioSampleSink } from '../../src/media-sink.js';
+import { assert } from '../../src/misc.js';
+
+test('Encrypted MP4 without senc', async () => {
+	using input = new Input({
+		source: new UrlSource('/639955605-b752f7ad-7ce8-43c2-8ae9-88e74c6ae696.mp4'),
+		formats: ALL_FORMATS,
+		formatOptions: {
+			isobmff: {
+				resolveKeyId: () => 'aabbccddeeff00112233445566778899',
+			},
+		},
+	});
+
+	const audioTrack = await input.getPrimaryAudioTrack();
+	assert(audioTrack);
+
+	// Test that it can decode
+	const sink = new AudioSampleSink(audioTrack);
+	using firstSample = await sink.getSample(0);
+	assert(firstSample);
+	expect(firstSample.timestamp).toBe(0);
+});