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1 | from __future__ import unicode_literals | |
2 | ||
3 | import re | |
4 | ||
5 | from .common import InfoExtractor | |
6 | from ..utils import ( | |
7 | int_or_none, | |
8 | parse_duration, | |
9 | remove_end, | |
10 | xpath_element, | |
11 | xpath_text, | |
12 | ) | |
13 | ||
14 | ||
15 | class DigitallySpeakingIE(InfoExtractor): | |
16 | _VALID_URL = r'https?://(?:evt\.dispeak|events\.digitallyspeaking)\.com/(?:[^/]+/)+xml/(?P<id>[^.]+)\.xml' | |
17 | ||
18 | _TESTS = [{ | |
19 | # From http://gdcvault.com/play/1023460/Tenacious-Design-and-The-Interface | |
20 | 'url': 'http://evt.dispeak.com/ubm/gdc/sf16/xml/840376_BQRC.xml', | |
21 | 'md5': 'a8efb6c31ed06ca8739294960b2dbabd', | |
22 | 'info_dict': { | |
23 | 'id': '840376_BQRC', | |
24 | 'ext': 'mp4', | |
25 | 'title': 'Tenacious Design and The Interface of \'Destiny\'', | |
26 | }, | |
27 | }, { | |
28 | # From http://www.gdcvault.com/play/1014631/Classic-Game-Postmortem-PAC | |
29 | 'url': 'http://events.digitallyspeaking.com/gdc/sf11/xml/12396_1299111843500GMPX.xml', | |
30 | 'only_matching': True, | |
31 | }] | |
32 | ||
33 | def _parse_mp4(self, metadata): | |
34 | video_formats = [] | |
35 | video_root = None | |
36 | ||
37 | mp4_video = xpath_text(metadata, './mp4video', default=None) | |
38 | if mp4_video is not None: | |
39 | mobj = re.match(r'(?P<root>https?://.*?/).*', mp4_video) | |
40 | video_root = mobj.group('root') | |
41 | if video_root is None: | |
42 | http_host = xpath_text(metadata, 'httpHost', default=None) | |
43 | if http_host: | |
44 | video_root = 'http://%s/' % http_host | |
45 | if video_root is None: | |
46 | # Hard-coded in http://evt.dispeak.com/ubm/gdc/sf16/custom/player2.js | |
47 | # Works for GPUTechConf, too | |
48 | video_root = 'http://s3-2u.digitallyspeaking.com/' | |
49 | ||
50 | formats = metadata.findall('./MBRVideos/MBRVideo') | |
51 | if not formats: | |
52 | return None | |
53 | for a_format in formats: | |
54 | stream_name = xpath_text(a_format, 'streamName', fatal=True) | |
55 | video_path = re.match(r'mp4\:(?P<path>.*)', stream_name).group('path') | |
56 | url = video_root + video_path | |
57 | vbr = xpath_text(a_format, 'bitrate') | |
58 | video_formats.append({ | |
59 | 'url': url, | |
60 | 'vbr': int_or_none(vbr), | |
61 | }) | |
62 | return video_formats | |
63 | ||
64 | def _parse_flv(self, metadata): | |
65 | formats = [] | |
66 | akamai_url = xpath_text(metadata, './akamaiHost', fatal=True) | |
67 | audios = metadata.findall('./audios/audio') | |
68 | for audio in audios: | |
69 | formats.append({ | |
70 | 'url': 'rtmp://%s/ondemand?ovpfv=1.1' % akamai_url, | |
71 | 'play_path': remove_end(audio.get('url'), '.flv'), | |
72 | 'ext': 'flv', | |
73 | 'vcodec': 'none', | |
74 | 'format_id': audio.get('code'), | |
75 | }) | |
76 | slide_video_path = xpath_text(metadata, './slideVideo', fatal=True) | |
77 | formats.append({ | |
78 | 'url': 'rtmp://%s/ondemand?ovpfv=1.1' % akamai_url, | |
79 | 'play_path': remove_end(slide_video_path, '.flv'), | |
80 | 'ext': 'flv', | |
81 | 'format_note': 'slide deck video', | |
82 | 'quality': -2, | |
83 | 'preference': -2, | |
84 | 'format_id': 'slides', | |
85 | }) | |
86 | speaker_video_path = xpath_text(metadata, './speakerVideo', fatal=True) | |
87 | formats.append({ | |
88 | 'url': 'rtmp://%s/ondemand?ovpfv=1.1' % akamai_url, | |
89 | 'play_path': remove_end(speaker_video_path, '.flv'), | |
90 | 'ext': 'flv', | |
91 | 'format_note': 'speaker video', | |
92 | 'quality': -1, | |
93 | 'preference': -1, | |
94 | 'format_id': 'speaker', | |
95 | }) | |
96 | return formats | |
97 | ||
98 | def _real_extract(self, url): | |
99 | video_id = self._match_id(url) | |
100 | ||
101 | xml_description = self._download_xml(url, video_id) | |
102 | metadata = xpath_element(xml_description, 'metadata') | |
103 | ||
104 | video_formats = self._parse_mp4(metadata) | |
105 | if video_formats is None: | |
106 | video_formats = self._parse_flv(metadata) | |
107 | ||
108 | return { | |
109 | 'id': video_id, | |
110 | 'formats': video_formats, | |
111 | 'title': xpath_text(metadata, 'title', fatal=True), | |
112 | 'duration': parse_duration(xpath_text(metadata, 'endTime')), | |
113 | 'creator': xpath_text(metadata, 'speaker'), | |
114 | } |