FFmpegMetadataPP: don't enclose the values with " (fixes #1756)

diff --git a/youtube_dl/PostProcessor.py b/youtube_dl/PostProcessor.py
index 13b56ede5fdb3d66064a8072cdda87787eee1bae..69aedf87a44c72060e2af135cd95f6f820e9ab0c 100644 (file)
--- a/youtube_dl/PostProcessor.py
+++ b/youtube_dl/PostProcessor.py
@@ -501,7 +501,7 @@ class FFmpegMetadataPP(FFmpegPostProcessor):
 
         options = ['-c', 'copy']
         for (name, value) in metadata.items():
-            options.extend(['-metadata', '%s="%s"' % (name, value)])
+            options.extend(['-metadata', '%s=%s' % (name, value)])
         options.extend(['-f', ext])
 
         self._downloader.to_screen(u'[ffmpeg] Adding metadata to \'%s\'' % filename)