Fix metadata not being embedded when not extracting audio.

youtube_dl/__init__.py

@@ -221,9 +221,9 @@ def _real_main(argv=None):
             'key': 'MetadataFromTitle',
             'titleformat': opts.metafromtitle
         })
+    if opts.extractaudio:
         if opts.addmetadata and opts.keepvideo:
             postprocessors.append({'key': 'FFmpegMetadata'})
-    if opts.extractaudio:
         postprocessors.append({
             'key': 'FFmpegExtractAudio',
             'preferredcodec': opts.audioformat,