From 5736d79172c47ff84740d5720467370a560febad Mon Sep 17 00:00:00 2001
From: pukkandan <pukkandan.ytdlp@gmail.com>
Date: Fri, 16 Sep 2022 18:24:29 +0530
Subject: [PATCH] Support environment variables in `--ffmpeg-location`

Closes #4938
---
 yt_dlp/__init__.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/yt_dlp/__init__.py b/yt_dlp/__init__.py
index 87d431c6e..cab2dd62f 100644
--- a/yt_dlp/__init__.py
+++ b/yt_dlp/__init__.py
@@ -920,6 +920,7 @@ def _real_main(argv=None):
     # We may need ffmpeg_location without having access to the YoutubeDL instance
     # See https://github.com/yt-dlp/yt-dlp/issues/2191
     if opts.ffmpeg_location:
+        opts.ffmpeg_location = expand_path(opts.ffmpeg_location)
         FFmpegPostProcessor._ffmpeg_location.set(opts.ffmpeg_location)
 
     with YoutubeDL(ydl_opts) as ydl: