16 年之前 · 8d2c83eda5
--- a/youtube-dl
+++ b/youtube-dl
@@ -561,7 +561,8 @@ class YoutubeIE(InfoExtractor):
 
				 
			
 
				 		# Extension
			
 
				 		video_extension = {
			
 
				-			'17': '3gp',
			
 
				+			'13': '3gp',
			
 
				+			'17': 'mp4',
			
 
				 			'18': 'mp4',
			
 
				 			'22': 'mp4',
			
 
				 		}.get(format_param, 'flv')