[ard:beta] Improve extraction robustness, fix subtitles extraction, improve geo restricted videos extraction

youtube_dl/extractor/ard.py

@@ -8,13 +8,16 @@ from .generic import GenericIE
 from ..utils import (
     determine_ext,
     ExtractorError,
-    qualities,
     int_or_none,
     parse_duration,
+    qualities,
+    str_or_none,
+    try_get,
     unified_strdate,
-    xpath_text,
+    unified_timestamp,
     update_url_query,
     url_or_none,
+    xpath_text,
 )
 from ..compat import compat_etree_fromstring
 
@@ -336,43 +339,62 @@ class ARDBetaMediathekIE(InfoExtractor):
             'display_id': display_id,
         }
         formats = []
+        subtitles = {}
+        geoblocked = False
         for widget in data.values():
-            if widget.get('_geoblocked'):
-                raise ExtractorError('This video is not available due to geoblocking', expected=True)
-
+            if widget.get('_geoblocked') is True:
+                geoblocked = True
             if '_duration' in widget:
-                res['duration'] = widget['_duration']
+                res['duration'] = int_or_none(widget['_duration'])
             if 'clipTitle' in widget:
                 res['title'] = widget['clipTitle']
             if '_previewImage' in widget:
                 res['thumbnail'] = widget['_previewImage']
             if 'broadcastedOn' in widget:
-                res['upload_date'] = unified_strdate(widget['broadcastedOn'])
+                res['timestamp'] = unified_timestamp(widget['broadcastedOn'])
             if 'synopsis' in widget:
                 res['description'] = widget['synopsis']
-            if '_subtitleUrl' in widget:
-                res['subtitles'] = {'de': [{
+            subtitle_url = url_or_none(widget.get('_subtitleUrl'))
+            if subtitle_url:
+                subtitles.setdefault('de', []).append({
                     'ext': 'ttml',
-                    'url': widget['_subtitleUrl'],
-                }]}
+                    'url': subtitle_url,
+                })
             if '_quality' in widget:
-                format_url = widget['_stream']['json'][0]
-
-                if format_url.endswith('.f4m'):
+                format_url = url_or_none(try_get(
+                    widget, lambda x: x['_stream']['json'][0]))
+                if not format_url:
+                    continue
+                ext = determine_ext(format_url)
+                if ext == 'f4m':
                     formats.extend(self._extract_f4m_formats(
                         format_url + '?hdcore=3.11.0',
                         video_id, f4m_id='hds', fatal=False))
-                elif format_url.endswith('m3u8'):
+                elif ext == 'm3u8':
                     formats.extend(self._extract_m3u8_formats(
-                        format_url, video_id, 'mp4', m3u8_id='hls', fatal=False))
+                        format_url, video_id, 'mp4', m3u8_id='hls',
+                        fatal=False))
                 else:
+                    # HTTP formats are not available when geoblocked is True,
+                    # other formats are fine though
+                    if geoblocked:
+                        continue
+                    quality = str_or_none(widget.get('_quality'))
                     formats.append({
-                        'format_id': 'http-' + widget['_quality'],
+                        'format_id': ('http-' + quality) if quality else 'http',
                         'url': format_url,
                         'preference': 10,  # Plain HTTP, that's nice
                     })
 
+        if not formats and geoblocked:
+            self.raise_geo_restricted(
+                msg='This video is not available due to geoblocking',
+                countries=['DE'])
+
         self._sort_formats(formats)
-        res['formats'] = formats
+        res.update({
+            'subtitles': subtitles,
+            'formats': formats,
+        })
 
         return res