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- from __future__ import unicode_literals
-
- import itertools
- import re
-
- from .common import InfoExtractor
- from ..utils import (
- ExtractorError,
- parse_iso8601,
- )
-
-
- class TwitchIE(InfoExtractor):
- # TODO: One broadcast may be split into multiple videos. The key
- # 'broadcast_id' is the same for all parts, and 'broadcast_part'
- # starts at 1 and increases. Can we treat all parts as one video?
- _VALID_URL = r"""(?x)^(?:http://)?(?:www\.)?twitch\.tv/
- (?:
- (?P<channelid>[^/]+)|
- (?:(?:[^/]+)/b/(?P<videoid>[^/]+))|
- (?:(?:[^/]+)/c/(?P<chapterid>[^/]+))
- )
- /?(?:\#.*)?$
- """
- _PAGE_LIMIT = 100
- _API_BASE = 'https://api.twitch.tv'
- _TESTS = [{
- 'url': 'http://www.twitch.tv/riotgames/b/577357806',
- 'info_dict': {
- 'id': 'a577357806',
- 'title': 'Worlds Semifinals - Star Horn Royal Club vs. OMG',
- },
- 'playlist_mincount': 12,
- }, {
- 'url': 'http://www.twitch.tv/acracingleague/c/5285812',
- 'info_dict': {
- 'id': 'c5285812',
- 'title': 'ACRL Off Season - Sports Cars @ Nordschleife',
- },
- 'playlist_mincount': 3,
- }, {
- 'url': 'http://www.twitch.tv/vanillatv',
- 'info_dict': {
- 'id': 'vanillatv',
- 'title': 'VanillaTV',
- },
- 'playlist_mincount': 412,
- }]
-
- def _handle_error(self, response):
- if not isinstance(response, dict):
- return
- error = response.get('error')
- if error:
- raise ExtractorError(
- '%s returned error: %s - %s' % (self.IE_NAME, error, response.get('message')),
- expected=True)
-
- def _download_json(self, url, video_id, note='Downloading JSON metadata'):
- response = super(TwitchIE, self)._download_json(url, video_id, note)
- self._handle_error(response)
- return response
-
- def _extract_media(self, item, item_id):
- ITEMS = {
- 'a': 'video',
- 'c': 'chapter',
- }
- info = self._extract_info(self._download_json(
- '%s/kraken/videos/%s%s' % (self._API_BASE, item, item_id), item_id,
- 'Downloading %s info JSON' % ITEMS[item]))
- response = self._download_json(
- '%s/api/videos/%s%s' % (self._API_BASE, item, item_id), item_id,
- 'Downloading %s playlist JSON' % ITEMS[item])
- entries = []
- chunks = response['chunks']
- qualities = list(chunks.keys())
- for num, fragment in enumerate(zip(*chunks.values()), start=1):
- formats = []
- for fmt_num, fragment_fmt in enumerate(fragment):
- format_id = qualities[fmt_num]
- fmt = {
- 'url': fragment_fmt['url'],
- 'format_id': format_id,
- 'quality': 1 if format_id == 'live' else 0,
- }
- m = re.search(r'^(?P<height>\d+)[Pp]', format_id)
- if m:
- fmt['height'] = int(m.group('height'))
- formats.append(fmt)
- self._sort_formats(formats)
- entry = dict(info)
- entry['id'] = '%s_%d' % (entry['id'], num)
- entry['title'] = '%s part %d' % (entry['title'], num)
- entry['formats'] = formats
- entries.append(entry)
- return self.playlist_result(entries, info['id'], info['title'])
-
- def _extract_info(self, info):
- return {
- 'id': info['_id'],
- 'title': info['title'],
- 'description': info['description'],
- 'duration': info['length'],
- 'thumbnail': info['preview'],
- 'uploader': info['channel']['display_name'],
- 'uploader_id': info['channel']['name'],
- 'timestamp': parse_iso8601(info['recorded_at']),
- 'view_count': info['views'],
- }
-
- def _real_extract(self, url):
- mobj = re.match(self._VALID_URL, url)
- if mobj.group('chapterid'):
- return self._extract_media('c', mobj.group('chapterid'))
-
- """
- webpage = self._download_webpage(url, chapter_id)
- m = re.search(r'PP\.archive_id = "([0-9]+)";', webpage)
- if not m:
- raise ExtractorError('Cannot find archive of a chapter')
- archive_id = m.group(1)
-
- api = api_base + '/broadcast/by_chapter/%s.xml' % chapter_id
- doc = self._download_xml(
- api, chapter_id,
- note='Downloading chapter information',
- errnote='Chapter information download failed')
- for a in doc.findall('.//archive'):
- if archive_id == a.find('./id').text:
- break
- else:
- raise ExtractorError('Could not find chapter in chapter information')
-
- video_url = a.find('./video_file_url').text
- video_ext = video_url.rpartition('.')[2] or 'flv'
-
- chapter_api_url = 'https://api.twitch.tv/kraken/videos/c' + chapter_id
- chapter_info = self._download_json(
- chapter_api_url, 'c' + chapter_id,
- note='Downloading chapter metadata',
- errnote='Download of chapter metadata failed')
-
- bracket_start = int(doc.find('.//bracket_start').text)
- bracket_end = int(doc.find('.//bracket_end').text)
-
- # TODO determine start (and probably fix up file)
- # youtube-dl -v http://www.twitch.tv/firmbelief/c/1757457
- #video_url += '?start=' + TODO:start_timestamp
- # bracket_start is 13290, but we want 51670615
- self._downloader.report_warning('Chapter detected, but we can just download the whole file. '
- 'Chapter starts at %s and ends at %s' % (formatSeconds(bracket_start), formatSeconds(bracket_end)))
-
- info = {
- 'id': 'c' + chapter_id,
- 'url': video_url,
- 'ext': video_ext,
- 'title': chapter_info['title'],
- 'thumbnail': chapter_info['preview'],
- 'description': chapter_info['description'],
- 'uploader': chapter_info['channel']['display_name'],
- 'uploader_id': chapter_info['channel']['name'],
- }
- return info
- """
- elif mobj.group('videoid'):
- return self._extract_media('a', mobj.group('videoid'))
- elif mobj.group('channelid'):
- channel_id = mobj.group('channelid')
- info = self._download_json(
- '%s/kraken/channels/%s' % (self._API_BASE, channel_id),
- channel_id, 'Downloading channel info JSON')
- channel_name = info.get('display_name') or info.get('name')
- entries = []
- offset = 0
- limit = self._PAGE_LIMIT
- for counter in itertools.count(1):
- response = self._download_json(
- '%s/kraken/channels/%s/videos/?offset=%d&limit=%d'
- % (self._API_BASE, channel_id, offset, limit),
- channel_id, 'Downloading channel videos JSON page %d' % counter)
- videos = response['videos']
- if not videos:
- break
- entries.extend([self.url_result(video['url'], 'Twitch') for video in videos])
- offset += limit
- return self.playlist_result(entries, channel_id, channel_name)
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