X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=youtube_dl%2Futils.py;h=63f24c0b646635b65f62e1b162dcdebf8e6a72d9;hb=261f47306c594614edb8a5f0b8f5f3b8a87ce9c0;hp=7b4fd882f36e7a99c1e0649346d27f22b31f8cf2;hpb=c0fd20abcad16bb2e377b6342a894a374c219763;p=youtube-dl.git

diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index 7b4fd882f3..63f24c0b64 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -2667,6 +2667,7 @@ def dfxp2srt(dfxp_data):
     ]
 
     _x = functools.partial(xpath_with_ns, ns_map={
+        'xml': 'http://www.w3.org/XML/1998/namespace',
         'ttml': 'http://www.w3.org/ns/ttml',
         'tts': 'http://www.w3.org/ns/ttml#styling',
     })
@@ -2758,7 +2759,9 @@ def dfxp2srt(dfxp_data):
     repeat = False
     while True:
         for style in dfxp.findall(_x('.//ttml:style')):
-            style_id = style.get('id')
+            style_id = style.get('id') or style.get(_x('xml:id'))
+            if not style_id:
+                continue
             parent_style_id = style.get('style')
             if parent_style_id:
                 if parent_style_id not in styles: