From b5484291b796033c7f8debd2cb5b0f49e1c8d293 Mon Sep 17 00:00:00 2001
From: bashonly <bashonly@protonmail.com>
Date: Sun, 23 Mar 2025 22:47:50 -0500
Subject: [PATCH] deprioritize alternate audio tracks (e.g. descriptive audio)

Authored by: bashonly
---
 yt_dlp/extractor/common.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/yt_dlp/extractor/common.py b/yt_dlp/extractor/common.py
index 2586cab370..62a22b060d 100644
--- a/yt_dlp/extractor/common.py
+++ b/yt_dlp/extractor/common.py
@@ -2193,6 +2193,7 @@ class InfoExtractor:
                     'quality': quality,
                     'has_drm': has_drm,
                     'vcodec': 'none' if is_audio else None,
+                    'source_preference': -2 if is_alternate else None,
                     # Save this to assign source_preference based on associated video stream
                     '_audio_group_id': group_id if is_audio and not is_alternate else None,
                 } for idx in _extract_m3u8_playlist_indices(manifest_url))