Merge remote-tracking branch 'yan12125/download-dash-segments' (#5886)
[youtube-dl] / youtube_dl / extractor / ceskatelevize.py
1 # -*- coding: utf-8 -*-
2 from __future__ import unicode_literals
3
4 import re
5
6 from .common import InfoExtractor
7 from ..compat import (
8     compat_urllib_request,
9     compat_urllib_parse,
10     compat_urllib_parse_unquote,
11     compat_urllib_parse_urlparse,
12 )
13 from ..utils import (
14     ExtractorError,
15     float_or_none,
16 )
17
18
19 class CeskaTelevizeIE(InfoExtractor):
20     _VALID_URL = r'https?://www\.ceskatelevize\.cz/(porady|ivysilani)/(.+/)?(?P<id>[^?#]+)'
21
22     _TESTS = [
23         {
24             'url': 'http://www.ceskatelevize.cz/ivysilani/ivysilani/10441294653-hyde-park-civilizace/214411058091220',
25             'info_dict': {
26                 'id': '214411058091220',
27                 'ext': 'mp4',
28                 'title': 'Hyde Park Civilizace',
29                 'description': 'Věda a současná civilizace. Interaktivní pořad - prostor pro vaše otázky a komentáře',
30                 'thumbnail': 're:^https?://.*\.jpg',
31                 'duration': 3350,
32             },
33             'params': {
34                 # m3u8 download
35                 'skip_download': True,
36             },
37         },
38         {
39             'url': 'http://www.ceskatelevize.cz/ivysilani/10532695142-prvni-republika/bonus/14716-zpevacka-z-duparny-bobina',
40             'info_dict': {
41                 'id': '14716',
42                 'ext': 'mp4',
43                 'title': 'První republika: Zpěvačka z Dupárny Bobina',
44                 'description': 'Sága mapující atmosféru první republiky od r. 1918 do r. 1945.',
45                 'thumbnail': 're:^https?://.*\.jpg',
46                 'duration': 88.4,
47             },
48             'params': {
49                 # m3u8 download
50                 'skip_download': True,
51             },
52         },
53     ]
54
55     def _real_extract(self, url):
56         url = url.replace('/porady/', '/ivysilani/').replace('/video/', '')
57
58         mobj = re.match(self._VALID_URL, url)
59         video_id = mobj.group('id')
60
61         webpage = self._download_webpage(url, video_id)
62
63         NOT_AVAILABLE_STRING = 'This content is not available at your territory due to limited copyright.'
64         if '%s</p>' % NOT_AVAILABLE_STRING in webpage:
65             raise ExtractorError(NOT_AVAILABLE_STRING, expected=True)
66
67         typ = self._html_search_regex(r'getPlaylistUrl\(\[\{"type":"(.+?)","id":".+?"\}\],', webpage, 'type')
68         episode_id = self._html_search_regex(r'getPlaylistUrl\(\[\{"type":".+?","id":"(.+?)"\}\],', webpage, 'episode_id')
69
70         data = {
71             'playlist[0][type]': typ,
72             'playlist[0][id]': episode_id,
73             'requestUrl': compat_urllib_parse_urlparse(url).path,
74             'requestSource': 'iVysilani',
75         }
76
77         req = compat_urllib_request.Request(
78             'http://www.ceskatelevize.cz/ivysilani/ajax/get-client-playlist',
79             data=compat_urllib_parse.urlencode(data))
80
81         req.add_header('Content-type', 'application/x-www-form-urlencoded')
82         req.add_header('x-addr', '127.0.0.1')
83         req.add_header('X-Requested-With', 'XMLHttpRequest')
84         req.add_header('Referer', url)
85
86         playlistpage = self._download_json(req, video_id)
87
88         playlist_url = playlistpage['url']
89         if playlist_url == 'error_region':
90             raise ExtractorError(NOT_AVAILABLE_STRING, expected=True)
91
92         req = compat_urllib_request.Request(compat_urllib_parse_unquote(playlist_url))
93         req.add_header('Referer', url)
94
95         playlist = self._download_json(req, video_id)
96
97         item = playlist['playlist'][0]
98         formats = []
99         for format_id, stream_url in item['streamUrls'].items():
100             formats.extend(self._extract_m3u8_formats(stream_url, video_id, 'mp4'))
101         self._sort_formats(formats)
102
103         title = self._og_search_title(webpage)
104         description = self._og_search_description(webpage)
105         duration = float_or_none(item.get('duration'))
106         thumbnail = item.get('previewImageUrl')
107
108         subtitles = {}
109         subs = item.get('subtitles')
110         if subs:
111             subtitles = self.extract_subtitles(episode_id, subs)
112
113         return {
114             'id': episode_id,
115             'title': title,
116             'description': description,
117             'thumbnail': thumbnail,
118             'duration': duration,
119             'formats': formats,
120             'subtitles': subtitles,
121         }
122
123     def _get_subtitles(self, episode_id, subs):
124         original_subtitles = self._download_webpage(
125             subs[0]['url'], episode_id, 'Downloading subtitles')
126         srt_subs = self._fix_subtitles(original_subtitles)
127         return {
128             'cs': [{
129                 'ext': 'srt',
130                 'data': srt_subs,
131             }]
132         }
133
134     @staticmethod
135     def _fix_subtitles(subtitles):
136         """ Convert millisecond-based subtitles to SRT """
137
138         def _msectotimecode(msec):
139             """ Helper utility to convert milliseconds to timecode """
140             components = []
141             for divider in [1000, 60, 60, 100]:
142                 components.append(msec % divider)
143                 msec //= divider
144             return "{3:02}:{2:02}:{1:02},{0:03}".format(*components)
145
146         def _fix_subtitle(subtitle):
147             for line in subtitle.splitlines():
148                 m = re.match(r"^\s*([0-9]+);\s*([0-9]+)\s+([0-9]+)\s*$", line)
149                 if m:
150                     yield m.group(1)
151                     start, stop = (_msectotimecode(int(t)) for t in m.groups()[1:])
152                     yield "{0} --> {1}".format(start, stop)
153                 else:
154                     yield line
155
156         return "\r\n".join(_fix_subtitle(subtitles))