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

Code before:
            formats.append({
                'format_id': f'{quality}-audioonly',
                'url': quality_meta['hlsaddr_audioonly'][0],
                'ext': 'm4a',
                'vcodec': 'none',
                'quality': quality_priority,
            })

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

        title = clean_html(get_element_by_id('livetitle', html.replace('<SPAN', '<span').replace('SPAN>', 'span>')))
        description = self._html_search_meta('Description', html)
        thumbnail = self._html_search_meta(['og:image', 'twitter:image'], html)

        is_live_stream = 'var timeshift = false;' in html
        is_vod = 'var timeshift = true;' in html

        if is_live_stream:
            qualities = [
                ('high', 'Z'),
                ('low', 'ForceLow'),
            ]
            formats = []
            for (desc, code) in qualities:
                quality_meta = self._get_quality_meta(video_id, desc, code)
                self._add_quality_formats(formats, quality_meta)
                if desc == 'high' and quality_meta.get('vcodec')[0] == 'HEVC':
                    h264_meta = self._get_quality_meta(video_id, desc, code, force_h264='1')
                    self._add_quality_formats(formats, h264_meta)

            return {
                'id': video_id,
                'title': title,
                'description': description,
                'thumbnail': thumbnail,
                'is_live': True,
                'formats': formats,
            }

        if is_vod:
            player_html = self._download_webpage(
                'https://live.erinn.biz/live.timeshift.fplayer.php', video_id,
                query={'hash': video_id},
                note='Downloading player html',
                errnote='Unable to download player html')

            sources_json = self._search_json(
                r'var\s+fplayer_source\s*=', player_html, 'stream data', video_id,
                contains_pattern=r'\[(?s:.+)\]', transform_source=js_to_json)

Review comment (suggestion):
```suggestion
            streams = [
                ('high', 'Z'),
                ('low', 'ForceLow'),
            ]
            formats = []
            for (desc, code) in streams:
```

Code after:
                'url': quality_meta['hlsaddr_audioonly'][0],
                'ext': 'm4a',
                'vcodec': 'none',
                'quality': quality_priority,
            })

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

        if '>タイムシフトが見つかりませんでした。<' in html:
            raise ExtractorError('This stream has expired', expected=True)

        title = clean_html(
            get_element_by_id('livetitle', html.replace('<SPAN', '<span').replace('SPAN>', 'span>')))
        description = self._html_search_meta('Description', html)
        thumbnail = self._html_search_meta(['og:image', 'twitter:image'], html)

        if self._search_regex(r'(var\s+timeshift\s*=\s*false)', html, 'is livestream', default=False):
            formats = []
            for (desc, code) in [('high', 'Z'), ('low', 'ForceLow')]:
                quality_meta = self._get_quality_meta(video_id, desc, code)
                self._add_quality_formats(formats, quality_meta)
                if desc == 'high' and traverse_obj(quality_meta, ('vcodec', 0)) == 'HEVC':
                    self._add_quality_formats(
                        formats, self._get_quality_meta(video_id, desc, code, force_h264='1'))

            return {
                'id': video_id,
                'title': title,
                'description': description,
                'thumbnail': thumbnail,
                'is_live': True,
                'formats': formats,
            }

        # VOD extraction
        player_html = self._download_webpage(
            'https://live.erinn.biz/live.timeshift.fplayer.php', video_id,
            'Downloading player html', 'Unable to download player html', query={'hash': video_id})

        sources = traverse_obj(self._search_json(
            r'var\s+fplayer_source\s*=', player_html, 'stream data', video_id,
            contains_pattern=r'\[(?s:.+)\]', transform_source=js_to_json), lambda _, v: v['file'])

        def entries(segments, playlist=True):
            for i, segment in enumerate(segments, 1):
                yield {
                    'id': f'{video_id}_{i}' if playlist else video_id,
                    'title': f'{title} (Part {i})' if playlist else title,
                    'description': description,