From 1d1c386fcd81a6c0931e59b1153eae6e22ceb89e Mon Sep 17 00:00:00 2001
From: Atsushi2965 <142886283+atsushi2965@users.noreply.github.com>
Date: Tue, 20 Jan 2026 17:27:19 +0900
Subject: [PATCH 1/2] `presets` conform to best practices of yt-dlp (almost
 refactoring)

---
 core/iframe/ui.js | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/core/iframe/ui.js b/core/iframe/ui.js
index 4b35ced..937c17a 100644
--- a/core/iframe/ui.js
+++ b/core/iframe/ui.js
@@ -13,11 +13,17 @@ function uilog(message) {
 // presets, always expandable. they map to yt-dlp options
 const presets = {
     "Best": {},
-    "Audio": {
-        "format": "bestaudio"
+    "Audio": { // -x
+        "format": "ba/b",
+        "postprocessors": [{
+            "key": "FFmpegExtractAudio",
+            "nopostoverwrites": false,
+            "preferredcodec": "best",
+            "preferredquality": "5"
+        }]
     },
-    "Smallest": {
-        "format_sort": ["+size", "+br"]
+    "Smallest": { // https://github.com/yt-dlp/yt-dlp#format-selection
+        "format_sort": ["+size", "+br", "+res", "+fps"]
     },
 };
 

From d0e1728b5ee11015e7a28ded6afbea42a1bef009 Mon Sep 17 00:00:00 2001
From: Atsushi2965 <142886283+atsushi2965@users.noreply.github.com>
Date: Tue, 20 Jan 2026 17:36:05 +0900
Subject: [PATCH 2/2] Add `-f best` for 'Smallest' option

---
 core/iframe/ui.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/core/iframe/ui.js b/core/iframe/ui.js
index 937c17a..a6aec95 100644
--- a/core/iframe/ui.js
+++ b/core/iframe/ui.js
@@ -23,6 +23,7 @@ const presets = {
         }]
     },
     "Smallest": { // https://github.com/yt-dlp/yt-dlp#format-selection
+        "format": "b",
         "format_sort": ["+size", "+br", "+res", "+fps"]
     },
 };