proto_preference = 0 if determine_protocol(f) in ['http', 'https'] else -0.1
if f.get('vcodec') == 'none': # audio only
+ preference -= 50
if self._downloader.params.get('prefer_free_formats'):
ORDER = ['aac', 'mp3', 'm4a', 'webm', 'ogg', 'opus']
else:
except ValueError:
audio_ext_preference = -1
else:
+ if f.get('acodec') == 'none': # video only
+ preference -= 40
if self._downloader.params.get('prefer_free_formats'):
ORDER = ['flv', 'mp4', 'webm']
else: