[generic] Support mpd formats without file extension
diff --git a/yt_dlp/extractor/generic.py b/yt_dlp/extractor/generic.py
index 9c7fa4a2175..ae0ebb14ad5 100644
--- a/yt_dlp/extractor/generic.py
+++ b/yt_dlp/extractor/generic.py
@@ -2601,6 +2601,8 @@ def _real_extract(self, url):
             subtitles = {}
             if format_id.endswith('mpegurl'):
                 formats, subtitles = self._extract_m3u8_formats_and_subtitles(url, video_id, 'mp4')
+            elif format_id.endswith('mpd') or format_id.endswith('dash+xml'):
+                formats, subtitles = self._extract_mpd_formats_and_subtitles(url, video_id)
             elif format_id == 'f4m':
                 formats = self._extract_f4m_formats(url, video_id)
             else:

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### Description of your *pull request* and other information

Support MPEG-DASH manifests that do not have ".mpd" in the url.