From bc21c48aecb33648341f9ab0c89dce5afa7402c0 Mon Sep 17 00:00:00 2001
From: Katie Pratt <katieannpratt@gmail.com>
Date: Sun, 6 Oct 2019 18:48:39 -0400
Subject: [PATCH] adding support for cli

---
 youtube_dl/__init__.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/youtube_dl/__init__.py b/youtube_dl/__init__.py
index 9a659fc65..1251688b4 100644
--- a/youtube_dl/__init__.py
+++ b/youtube_dl/__init__.py
@@ -10,6 +10,7 @@ import io
 import os
 import random
 import sys
+import json
 
 
 from .options import (
@@ -275,7 +276,11 @@ def _real_main(argv=None):
     # source and target containers. From this point the container won't change,
     # so metadata can be added here.
     if opts.addmetadata:
-        postprocessors.append({'key': 'FFmpegMetadata'})
+        postprocessors.append({
+            'key': 'FFmpegMetadata',
+            'preferredinfo': json.load(opts.preferredinfo),
+            })
+
     if opts.convertsubtitles:
         postprocessors.append({
             'key': 'FFmpegSubtitlesConvertor',