From bf8dd790456acc4a96d2961e61e96c4771e4d787 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sergey=20M=E2=80=A4?= <dstftw@gmail.com>
Date: Sun, 26 Jun 2016 21:09:07 +0700
Subject: [extractor/common] Fix sorting with custom field preference
---
youtube_dl/extractor/common.py | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py
index 4eda4e2ea..e6c15de42 100644
--- a/youtube_dl/extractor/common.py
+++ b/youtube_dl/extractor/common.py
@@ -878,7 +878,11 @@ class InfoExtractor(object):
f['ext'] = determine_ext(f['url'])
if isinstance(field_preference, (list, tuple)):
- return tuple(f.get(field) if f.get(field) is not None else -1 for field in field_preference)
+ return tuple(
+ f.get(field)
+ if f.get(field) is not None
+ else ('' if field == 'format_id' else -1)
+ for field in field_preference)
preference = f.get('preference')
if preference is None:
--
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