From f67baae17e76997c13d35f65f50be633106837e0 Mon Sep 17 00:00:00 2001
From: pukkandan <pukkandan.ytdlp@gmail.com>
Date: Thu, 23 Jun 2022 08:13:15 +0530
Subject: [PATCH] [ffmpeg] Write full output to debug on error

Bug in f0c9fb96827ff798a48626e7e5d32a9c5de7b97e
---
 yt_dlp/postprocessor/ffmpeg.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/yt_dlp/postprocessor/ffmpeg.py b/yt_dlp/postprocessor/ffmpeg.py
index 0c8d4611d..d0a917379 100644
--- a/yt_dlp/postprocessor/ffmpeg.py
+++ b/yt_dlp/postprocessor/ffmpeg.py
@@ -347,6 +347,7 @@ class FFmpegPostProcessor(PostProcessor):
         _, stderr, returncode = Popen.run(
             cmd, text=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE)
         if returncode not in variadic(expected_retcodes):
+            self.write_debug(stderr)
             raise FFmpegPostProcessorError(stderr.strip().splitlines()[-1])
         for out_path, _ in output_path_opts:
             if out_path: