From a79580dc9a1d422894374ead6823f9bc283b5981 Mon Sep 17 00:00:00 2001
From: Anand Tamariya <Anand Tamariya>
Date: Thu, 20 Dec 2018 14:47:07 +0530
Subject: [PATCH] Allow format to be specified by -f flag

---
 youtube_dl/downloader/external.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/youtube_dl/downloader/external.py b/youtube_dl/downloader/external.py
index 958d00aac..1ba839716 100644
--- a/youtube_dl/downloader/external.py
+++ b/youtube_dl/downloader/external.py
@@ -294,7 +294,7 @@ class FFmpegFD(ExternalFD):
             if live:
                 args += ['-rtmp_live', 'live']
 
-        args += ['-i', url, '-c', 'copy']
+        args += ['-i', url]
 
         if self.params.get('test', False):
             args += ['-fs', compat_str(self._TEST_FILE_SIZE)]