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

Code before:
        },
        'params': {
            'skip_download': True,
            'ignore_no_formats_error': True,
        },
    }]

    def _real_extract(self, url):
        video_id = 'live'

        metadata = self._download_webpage(
            'https://www.uniqueradio.jp/aandg', video_id,
            note='Downloading metadata', errnote='Failed to download metadata')
        title = urllib.parse.unquote_plus(
            self._search_regex(r'var\s+Program_name\s*=\s*["\']([^"\']+)["\']', metadata, 'program title'))
        desc = urllib.parse.unquote_plus(
            self._search_regex(r'var\s+Program_text\s*=\s*["\']([^"\']+)["\']', metadata, 'program description'))

        m3u8_path = self._search_regex(
            r'<source\s[^>]*\bsrc="([^"]+)"',
            self._download_webpage(
                'https://www.uniqueradio.jp/agplayer5/inc-player-hls.php', video_id,
                note='Downloading player data', errnote='Failed to download player data'),
            'm3u8 url')
        formats = self._extract_m3u8_formats(
            f'https://www.uniqueradio.jp/{m3u8_path}', video_id, fatal=False)

        return {
            'id': video_id,
            'title': f'{title} - 超!A&G+',
            'description': desc,
            'formats': formats,
            'live_status': 'is_live',
        }


Review comment (refactor):
the `m3u8_path` starts with a `/` already, so the path ends up as https://www.uniqueradio.jp//agapps/hls/cdn.m3u8
that does work, but this is more future-proof:
```suggestion
        formats = self._extract_m3u8_formats(
            urljoin('https://www.uniqueradio.jp/', m3u8_path), video_id, fatal=False)
```
`from ..utils import urljoin`

Code after:
            'id': 'live',
            'title': str,
            'channel': '超!A&G+',
            'description': str,
            'live_status': 'is_live',
            'release_timestamp': int,
        },
        'params': {
            'skip_download': True,
            'ignore_no_formats_error': True,
        },
    }, {
        'url': 'https://www.uniqueradio.jp/agplayer5/inc-player-hls.php',
        'only_matching': True,
    }, {
        'url': 'https://www.joqr.co.jp/ag/article/103760/',
        'only_matching': True,
    }, {
        'url': 'http://www.joqr.co.jp/qr/agdailyprogram/',
        'only_matching': True,
    }, {
        'url': 'http://www.joqr.co.jp/qr/agregularprogram/',
        'only_matching': True,
    }]

    def _extract_metadata(self, variable, html):
        return clean_html(urllib.parse.unquote_plus(self._search_regex(
            rf'var\s+{variable}\s*=\s*(["\'])(?P<value>(?:(?!\1).)+)\1',
            html, 'metadata', group='value', default=''))) or None

    def _extract_start_timestamp(self, video_id, is_live):
        def extract_start_time_from(date_str):
            dt = datetime_from_str(date_str) + datetime.timedelta(hours=9)
            date = dt.strftime('%Y%m%d')
            start_time = self._search_regex(
                r'<h3[^>]+\bclass="dailyProgram-itemHeaderTime"[^>]*>[\s\d:]+–\s*(\d{1,2}:\d{1,2})',
                self._download_webpage(
                    f'https://www.joqr.co.jp/qr/agdailyprogram/?date={date}', video_id,
                    note=f'Downloading program list of {date}', fatal=False,
                    errnote=f'Failed to download program list of {date}') or '',
                'start time', default=None)
            if start_time:
                return unified_timestamp(f'{dt.strftime("%Y/%m/%d")} {start_time} +09:00')
            return None

        start_timestamp = extract_start_time_from('today')
        if not start_timestamp:
            return None

        if not is_live or start_timestamp < datetime_from_str('now').timestamp():
            return start_timestamp