+        formats = []
+        sources = self._parse_json(
+            self._search_regex(
+                r'sources\s*:\s*({.+?})', webpage, 'source', default='{}'),
+            video_id, fatal=False)
+        if sources and isinstance(sources, dict):
+            for format_id, format_url in sources.items():
+                if format_url:
+                    formats.append({
+                        'url': format_url,
+                        'format_id': format_id,
+                        'height': int_or_none(format_id),
+                    })
+        medias = self._parse_json(
+            self._search_regex(
+                r'mediaDefinition\s*:\s*(\[.+?\])', webpage,
+                'media definitions', default='{}'),
+            video_id, fatal=False)
+        if medias and isinstance(medias, list):
+            for media in medias:
+                format_url = url_or_none(media.get('videoUrl'))
+                if not format_url:
+                    continue
+                format_id = media.get('quality')
+                formats.append({
+                    'url': format_url,
+                    'format_id': format_id,
+                    'height': int_or_none(format_id),
+                })
+        if not formats:
+            video_url = self._html_search_regex(
+                r'<source src="(.+?)" type="video/mp4">', webpage, 'video URL')
+            formats.append({'url': video_url})
+        self._sort_formats(formats)