[cleanup] Minor cleanup

yt_dlp/extractor/picarto.py

@@ -111,7 +111,7 @@ class PicartoVodIE(InfoExtractor):
         vod_info = self._parse_json(
             self._search_regex(
                 r'(?s)#vod-player["\']\s*,\s*(\{.+?\})\s*\)', webpage,
-                video_id),
+                'vod player'),
             video_id, transform_source=js_to_json)
 
         formats = self._extract_m3u8_formats(

yt_dlp/extractor/youtube.py

@@ -2513,7 +2513,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                     fmt.get('qualityLabel') or quality.replace('audio_quality_', ''),
                     throttled and 'THROTTLED'))),
                 'source_preference': -10 if not throttled else -1,
-                'fps': int_or_none(fmt.get('fps')),
+                'fps': int_or_none(fmt.get('fps')) or None,
                 'height': height,
                 'quality': q(quality),
                 'tbr': tbr,