From 7796e8c2cb2827ba7f7ef5e0c1dd0c299281026d Mon Sep 17 00:00:00 2001
From: Philipp Hagemeister <phihag@phihag.de>
Date: Mon, 18 Feb 2013 23:12:48 +0100
Subject: [PATCH] facebook: also download lq videos

---
 youtube_dl/InfoExtractors.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/youtube_dl/InfoExtractors.py b/youtube_dl/InfoExtractors.py
index d7ddf4e37..36f025078 100755
--- a/youtube_dl/InfoExtractors.py
+++ b/youtube_dl/InfoExtractors.py
@@ -2098,6 +2098,10 @@ class FacebookIE(InfoExtractor):
         params_raw = compat_urllib_parse.unquote(data['params'])
         params = json.loads(params_raw)
         video_url = params['hd_src']
+        if not video_url:
+            video_url = params['sd_src']
+        if not video_url:
+            raise ExtractorError(u'Cannot find video URL')
         video_duration = int(params['video_duration'])
 
         m = re.search('<h2 class="uiHeaderTitle">([^<]+)</h2>', webpage)