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

Code before:
            data = self._RX_OBFUSCATION.sub(
                lambda m: json.dumps(
                    base64.b64decode(urllib.parse.unquote(
                        ''.join(self._parse_json(m.group(1), video_id)),
                    )).decode('iso-8859-1')),
                data)
        return js_to_json(data)

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

        webpage = self._download_webpage(url, video_id)
        title = self._html_search_meta(
            'twitter:title', webpage, display_name='title', fatal=True)

        f, config = self._search_regex(
            r'''(?sx)
                (?:var\s+f\s*=\s*(?P<f>".*?"|{[^;]+?});\s*)?
                var\s+player1\s+=\s+new\s+RTPPlayer\s*\((?P<config>{(?:(?!\*/).)+?})\);(?!\s*\*/)
            ''', webpage,
            'player config', group=('f', 'config'))

        config = self._parse_json(
            config, video_id,
            lambda data: self.__unobfuscate(data, video_id=video_id))
        f = config.get('file') if not f else self._parse_json(
            f, video_id,
            lambda data: self.__unobfuscate(data, video_id=video_id))

        formats = []
        if isinstance(f, dict):
            f_hls = f.get('hls')
            if f_hls is not None:
                formats.extend(self._extract_m3u8_formats(
                    f_hls, video_id, 'mp4', 'm3u8_native', m3u8_id='hls'))

            f_dash = f.get('dash')
            if f_dash is not None:
                formats.extend(self._extract_mpd_formats(f_dash, video_id, mpd_id='dash'))
        else:
            formats.append({
                'format_id': 'f',
                'url': f,
                'vcodec': 'none' if config.get('mediaType') == 'audio' else None,
            })

        subtitles = {}

        vtt = config.get('vtt')
        if vtt is not None:
            for lcode, lname, url in vtt:

Review comment (suggestion):
```suggestion
        f = config['file'] if not f else self._parse_json(
```

Code after:
            data = self._RX_OBFUSCATION.sub(
                lambda m: json.dumps(
                    base64.b64decode(urllib.parse.unquote(
                        ''.join(self._parse_json(m.group(1), video_id)),
                    )).decode('iso-8859-1')),
                data)
        return js_to_json(data)

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

        webpage = self._download_webpage(url, video_id)
        title = self._html_search_meta(
            'twitter:title', webpage, display_name='title', fatal=True)

        f, config = self._search_regex(
            r'''(?sx)
                (?:var\s+f\s*=\s*(?P<f>".*?"|{[^;]+?});\s*)?
                var\s+player1\s+=\s+new\s+RTPPlayer\s*\((?P<config>{(?:(?!\*/).)+?})\);(?!\s*\*/)
            ''', webpage,
            'player config', group=('f', 'config'))

        config = self._parse_json(
            config, video_id,
            lambda data: self.__unobfuscate(data, video_id=video_id))
        f = config['file'] if not f else self._parse_json(
            f, video_id,
            lambda data: self.__unobfuscate(data, video_id=video_id))

        formats = []
        if isinstance(f, dict):
            f_hls = f.get('hls')
            if f_hls is not None:
                formats.extend(self._extract_m3u8_formats(
                    f_hls, video_id, 'mp4', 'm3u8_native', m3u8_id='hls'))

            f_dash = f.get('dash')
            if f_dash is not None:
                formats.extend(self._extract_mpd_formats(f_dash, video_id, mpd_id='dash'))
        else:
            formats.append({
                'format_id': 'f',
                'url': f,
                'vcodec': 'none' if config.get('mediaType') == 'audio' else None,
            })

        subtitles = {}

        vtt = config.get('vtt')
        if vtt is not None:
            for lcode, lname, url in vtt: