Repository: yt-dlp/yt-dlp
File: yt_dlp/extractor/kika.py (Python)

Code before:

        return {
            'id': video_id,
            'title': doc.get('title'),
            'description': doc.get('description'),
            'timestamp': parse_iso8601(doc.get('date')),
            'duration': parse_duration(doc.get('duration')),
            'formats': formats,
            'subtitles': subtitles,
            'uploader': 'KIKA'
        }

    def _extract_formats(self, media_info, video_id):
        for media in media_info['assets']:
            stream_url = media.get('url')
            if not stream_url:
                continue
            ext = determine_ext(stream_url)
            if ext == 'm3u8':
                yield from self._extract_m3u8_formats(
                    stream_url, video_id, 'mp4', m3u8_id='hls', fatal=False)
            else:
                yield {
                    'url': stream_url,
                    'format_id': ext,
                    **traverse_obj(media, {
                        'width': 'frameWidth',
                        'height': 'frameHeight',
                        'filesize': 'fileSize',
                        'abr': 'bitrateAudio',
                        'vbr': 'bitrateVideo'
                    })
                }


Review comment (refactor):
```suggestion
        doc = self._download_json(f'https://www.kika.de/_next-api/proxy/v1/videos/video{video_id}', video_id)
        video_assets = self._download_json(doc['assets']['url'], video_id)

        subtitles = {}
        ttml_resource = video_assets.get('videoSubtitle')
        if ttml_resource:
            subtitles['de'] = [{
                'url': ttml_resource,
                'ext': 'ttml',
            }]
        webvtt_resource = video_assets.get('webvttUrl')
        if webvtt_resource:
            subtitles.setdefault('de', []).append({
                'url': webvtt_resource,
                'ext': 'vtt'
            })

        return {
            'id': video_id,
            'title': doc.get('title'),
            'description': doc.get('description'),
            'timestamp': parse_iso8601(doc.get('date')),
            'duration': parse_duration(doc.get('duration')),
            'formats': list(self._extract_formats(video_assets, video_id)),
            'subtitles': subtitles,
```

Code after:
            'season': 'Season 1',
        },
    }, {
        'url': 'https://www.kika.de/bernd-das-brot/astrobrot/videos/video90088',
        'md5': 'ffd1b700d7de0a6616a1d08544c77294',
        'info_dict': {
            'id': 'video90088',
            'ext': 'mp4',
            'upload_date': '20221102',
            'timestamp': 1667390580,
            'duration': 197,
            'modified_timestamp': 1711093771,
            'episode_number': 8,
            'title': 'Es ist nicht leicht, ein Astrobrot zu sein',
            'modified_date': '20240322',
            'description': 'md5:d3641deaf1b5515a160788b2be4159a9',
            'season_number': 1,
            'episode': 'Episode 8',
            'season': 'Season 1',
        },
    }]

    def _real_extract(self, url):
        video_id = self._match_id(url)

        doc = self._download_json(f'https://www.kika.de/_next-api/proxy/v1/videos/{video_id}', video_id)
        video_assets = self._download_json(doc['assets']['url'], video_id)

        subtitles = {}
        if ttml_resource := url_or_none(video_assets.get('videoSubtitle')):
            subtitles['de'] = [{
                'url': ttml_resource,
                'ext': 'ttml',
            }]
        if webvtt_resource := url_or_none(video_assets.get('webvttUrl')):
            subtitles.setdefault('de', []).append({
                'url': webvtt_resource,
                'ext': 'vtt',
            })

        return {
            'id': video_id,
            'formats': list(self._extract_formats(video_assets, video_id)),
            'subtitles': subtitles,
            **traverse_obj(doc, {
                'title': ('title', {str}),
                'description': ('description', {str}),
                'timestamp': ('date', {parse_iso8601}),
                'modified_timestamp': ('modificationDate', {parse_iso8601}),
                'duration': ((
                    ('durationInSeconds', {int_or_none}),