From c0ebaa444a696542b6dc992e50c4afecc54fbad8 Mon Sep 17 00:00:00 2001
From: doe1080 <98906116+doe1080@users.noreply.github.com>
Date: Fri, 27 Jun 2025 00:11:17 +0900
Subject: [PATCH] acodec

---
 yt_dlp/extractor/niconico.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/yt_dlp/extractor/niconico.py b/yt_dlp/extractor/niconico.py
index 601d711d5..720c5ac5d 100644
--- a/yt_dlp/extractor/niconico.py
+++ b/yt_dlp/extractor/niconico.py
@@ -906,6 +906,7 @@ def _real_extract(self, url):
                 abr = parse_bitrate(fmt['url'].lower())
                 fmt.update({
                     'abr': abr,
+                    'acodec': 'mp4a.40.2',
                     'format_id': a_map.get(abr, fmt['format_id']),
                 })