[utils] Restrict parse_codecs and add theora as known vcodec (#21381)

[youtube-dl] / youtube_dl / utils.py

diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index 9be9b2e761545ecbd8c8a1c10eeba4e97f586f8c..a1f586b801a5aaa254ec63525f26ba32388b9474 100644 (file)
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -1951,8 +1951,8 @@ def bool_or_none(v, default=None):
     return v if isinstance(v, bool) else default
 
 
-def strip_or_none(v):
-    return None if v is None else v.strip()
+def strip_or_none(v, default=None):
+    return v.strip() if isinstance(v, compat_str) else default
 
 
 def url_or_none(url):
@@ -2529,7 +2529,7 @@ def parse_codecs(codecs_str):
     vcodec, acodec = None, None
     for full_codec in splited_codecs:
         codec = full_codec.split('.')[0]
-        if codec in ('avc1', 'avc2', 'avc3', 'avc4', 'vp9', 'vp8', 'hev1', 'hev2', 'h263', 'h264', 'mp4v', 'hvc1', 'av01'):
+        if codec in ('avc1', 'avc2', 'avc3', 'avc4', 'vp9', 'vp8', 'hev1', 'hev2', 'h263', 'h264', 'mp4v', 'hvc1', 'av01', 'theora'):
             if not vcodec:
                 vcodec = full_codec
         elif codec in ('mp4a', 'opus', 'vorbis', 'mp3', 'aac', 'ac-3', 'ec-3', 'eac3', 'dtsc', 'dtse', 'dtsh', 'dtsl'):
@@ -2540,13 +2540,8 @@ def parse_codecs(codecs_str):
     if not vcodec and not acodec:
         if len(splited_codecs) == 2:
             return {
-                'vcodec': vcodec,
-                'acodec': acodec,
-            }
-        elif len(splited_codecs) == 1:
-            return {
-                'vcodec': 'none',
-                'acodec': vcodec,
+                'vcodec': splited_codecs[0],
+                'acodec': splited_codecs[1],
             }
     else:
         return {