[wakanim] Add support for MPD manifests (#1428)

Closes #1426
Authored by: nyuszika7h

yt_dlp/extractor/wakanim.py

@@ -1,6 +1,8 @@
 # coding: utf-8
 from __future__ import unicode_literals
 
+from urllib.parse import unquote
+
 from .common import InfoExtractor
 from ..utils import (
     merge_dicts,
@@ -37,20 +39,24 @@ class WakanimIE(InfoExtractor):
 
         webpage = self._download_webpage(url, video_id)
 
-        m3u8_url = urljoin(url, self._search_regex(
-            r'file\s*:\s*(["\'])(?P<url>(?:(?!\1).)+)\1', webpage, 'm3u8 url',
+        manifest_url = urljoin(url, self._search_regex(
+            r'file\s*:\s*(["\'])(?P<url>(?:(?!\1).)+)\1', webpage, 'manifest url',
             group='url'))
         if not self.get_param('allow_unplayable_formats'):
             # https://docs.microsoft.com/en-us/azure/media-services/previous/media-services-content-protection-overview#streaming-urls
             encryption = self._search_regex(
                 r'encryption%3D(c(?:enc|bc(?:s-aapl)?))',
-                m3u8_url, 'encryption', default=None)
+                manifest_url, 'encryption', default=None)
             if encryption in ('cenc', 'cbcs-aapl'):
                 self.report_drm(video_id)
 
-        formats = self._extract_m3u8_formats(
-            m3u8_url, video_id, 'mp4', entry_protocol='m3u8_native',
-            m3u8_id='hls')
+        if 'format=mpd-time-cmaf' in unquote(manifest_url):
+            formats = self._extract_mpd_formats(
+                manifest_url, video_id, mpd_id='dash')
+        else:
+            formats = self._extract_m3u8_formats(
+                manifest_url, video_id, 'mp4', entry_protocol='m3u8_native',
+                m3u8_id='hls')
 
         info = self._search_json_ld(webpage, video_id, default={})