feat: add 4K and 2K quality tiers

src/lib/__tests__/ytdlp-probe.test.ts

@@ -39,6 +39,27 @@ describe('parseProbeOutput', () => {
     expect(result.subtitleLangs).toEqual(['fr', 'en', 'es'])
   })
 
+  it('includes 4K and 2K when the source tops out at 4K', () => {
+    const result = parseProbeOutput(json({
+      formats: [
+        { height: 1080, vcodec: 'avc1' },
+        { height: 1440, vcodec: 'avc1' },
+        { height: 2160, vcodec: 'avc1' },
+      ],
+    }))
+    expect(result.availableQualities).toEqual(['best', '2160p', '1440p', '1080p', '720p', '480p', '360p'])
+  })
+
+  it('includes 2K but excludes 4K when the source tops out below 4K', () => {
+    const result = parseProbeOutput(json({
+      formats: [
+        { height: 1080, vcodec: 'avc1' },
+        { height: 1440, vcodec: 'avc1' },
+      ],
+    }))
+    expect(result.availableQualities).toEqual(['best', '1440p', '1080p', '720p', '480p', '360p'])
+  })
+
   it('caps available qualities to the max height found', () => {
     const result = parseProbeOutput(json({
       formats: [

src/lib/ytdlp-options.ts

@@ -1,3 +1,3 @@
 export const FORMATS = ['mp4', 'mp3', 'webm', 'mkv'] as const
-export const QUALITIES = ['best', '1080p', '720p', '480p', '360p'] as const
+export const QUALITIES = ['best', '2160p', '1440p', '1080p', '720p', '480p', '360p'] as const
 export const AUDIO_QUALITIES = ['best', '192', '128'] as const