From 6d210f20905a5c31f72eff16f9f4dbbed7f52c70 Mon Sep 17 00:00:00 2001
From: Yen Chi Hsuan <yan12125@gmail.com>
Date: Sun, 6 Mar 2016 13:32:03 +0800
Subject: [PATCH] [utils] Add more codecs to codec2ext

BBC uses avc3. Here's an example (thanks to @remitamine for this example)

http://rdmedia.bbc.co.uk/dash/ondemand/bbb/2/client_manifest-common_init.mpd

See also https://trac.ffmpeg.org/ticket/5217
---
 youtube_dl/utils.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index dc0bf5627..0e04e91a4 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -1900,6 +1900,9 @@ def codec2ext(codec):
     # is not a good fallback for file extensions
     return {
         'avc1': 'mp4',
+        'avc2': 'mp4',
+        'avc3': 'mp4',
+        'avc4': 'mp4',
         'mp4a': 'm4a',
         'vorbis': 'webm',
         'vp9': 'webm',