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

Code before:
        'info_dict': {
            'id': '14210000',
            'ext': 'mp4',
            'duration': 2651.08,
            'thumbnail': 'https://api-tvthek.orf.at/assets/segments/0167/98/thumb_16697671_segments_highlight_teaser.jpeg',
            'title': 'School of Champions (4/8)',
            'description': 'md5:d09ad279fc2e8502611e7648484b6afd',
            'media_type': 'episode',
        }
    }]

    def _call_api(self, video_id, display_id):
        # NOTE: the prefix `3dSlfek03nsLKdj4Jsd` is only based on my observation on several
        # api call. This string may change in future
        encrypted_id = base64.b64encode(f'3dSlfek03nsLKdj4Jsd{video_id}'.encode()).decode()
        api_json = self._download_json(
            f'https://api-tvthek.orf.at/api/v4.3/public/episode/encrypted/{encrypted_id}', display_id)

        formats, subtitles = [], {}
        for manifest_type in api_json.get('sources') or [{}]:
            for manifest_info in traverse_obj(api_json, ('sources', manifest_type, ...)):
                fmt, subs = [], {}
                if manifest_type == 'hls':
                    fmt, subs = self._extract_m3u8_formats_and_subtitles(manifest_info.get('src'), display_id)
                elif manifest_type == 'dash':
                    fmt, subs = self._extract_mpd_formats_and_subtitles(manifest_info.get('src'), display_id, fatal=False)
                else:
                    continue
                formats.extend(fmt)
                self._merge_subtitles(subs, target=subtitles)

        return {
            'id': video_id or api_json.get('id'),
            'formats': formats,
            'subtitles': subtitles,
            **traverse_obj(api_json, {
                'duration': ('duration_second', float_or_none),
                'title': (('title'), ('headline')),
                'description': (('description'), ('teaser_text')),
                'media_type': 'video_type'
            })
        }

    def _real_extract(self, url):
        video_id, display_id = self._match_valid_url(url).group('id', 'slug')
        webpage = self._download_webpage(url, display_id)
        json_ld_data = self._search_json_ld(webpage, display_id)

        api_data = self._call_api(video_id, display_id)

        return merge_dicts(api_data, {

Review comment (refactor):
We could traverse for the url itself, and hls should be non-fatal too since there are multiple m3u8 urls
```suggestion
            for manifest_url in traverse_obj(api_json, ('sources', manifest_type, ..., 'src', {url_or_none})):
                fmts, subs = [], {}
                if manifest_type == 'hls':
                    fmts, subs = self._extract_m3u8_formats_and_subtitles(manifest_url, display_id, fatal=False)
                elif manifest_type == 'dash':
                    fmts, subs = self._extract_mpd_formats_and_subtitles(manifest_url, display_id, fatal=False)
```

Code after:
        'info_dict': {
            'id': '14210000',
            'ext': 'mp4',
            'duration': 2651.08,
            'thumbnail': 'https://api-tvthek.orf.at/assets/segments/0167/98/thumb_16697671_segments_highlight_teaser.jpeg',
            'title': 'School of Champions (4/8)',
            'description': 'md5:d09ad279fc2e8502611e7648484b6afd',
            'media_type': 'episode',
            'timestamp': 1706472362,
            'upload_date': '20240128',
        }
    }]

    def _extract_video(self, video_id, display_id):
        encrypted_id = base64.b64encode(f'3dSlfek03nsLKdj4Jsd{video_id}'.encode()).decode()
        api_json = self._download_json(
            f'https://api-tvthek.orf.at/api/v4.3/public/episode/encrypted/{encrypted_id}', display_id)

        formats, subtitles = [], {}
        for manifest_type in traverse_obj(api_json, ('sources', {dict.keys}, ...)):
            for manifest_url in traverse_obj(api_json, ('sources', manifest_type, ..., 'src', {url_or_none})):
                if manifest_type == 'hls':
                    fmts, subs = self._extract_m3u8_formats_and_subtitles(
                        manifest_url, display_id, fatal=False, m3u8_id='hls')
                elif manifest_type == 'dash':
                    fmts, subs = self._extract_mpd_formats_and_subtitles(
                        manifest_url, display_id, fatal=False, mpd_id='dash')
                else:
                    continue
                formats.extend(fmts)
                self._merge_subtitles(subs, target=subtitles)

        return {
            'id': video_id,
            'formats': formats,
            'subtitles': subtitles,
            **traverse_obj(api_json, {
                'duration': ('duration_second', {float_or_none}),
                'title': (('title', 'headline'), {str}),
                'description': (('description', 'teaser_text'), {str}),
                'media_type': ('video_type', {str}),
            }, get_all=False),
        }

    def _real_extract(self, url):
        video_id, display_id = self._match_valid_url(url).group('id', 'slug')
        webpage = self._download_webpage(url, display_id)

        return {
            'id': video_id,
            'title': self._html_search_meta(['og:title', 'twitter:title'], webpage, default=None),