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[dispeak] Add new extractor

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Both GDCVault and GPUTechConf uses the service of DigitalSpeaking.
totalwebcasting
Yen Chi Hsuan 8 years ago
parent 99ef96f84c
commit ec59d657e7
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GPG Key ID: 3FDDD575826C5C30
4 changed files with 123 additions and 99 deletions
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111
youtube_dl/extractor/dispeak.py
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@ -0,0 +1,111 @@
from __future__ import unicode_literals
import re
from .common import InfoExtractor
from ..utils import (
int_or_none,
parse_duration,
remove_end,
xpath_element,
xpath_text,
)
class DigitalSpeakingIE(InfoExtractor):
_VALID_URL = r'http://evt.dispeak.com/([^/]+/)+xml/(?P<id>[^.]+).xml'
_TEST = {
# From http://evt.dispeak.com/ubm/gdc/sf16/xml/840376_BQRC.xml
'url': 'http://evt.dispeak.com/ubm/gdc/sf16/xml/840376_BQRC.xml',
'md5': 'a8efb6c31ed06ca8739294960b2dbabd',
'info_dict': {
'id': '840376_BQRC',
'ext': 'mp4',
'title': 'Tenacious Design and The Interface of \'Destiny\'',
},
}
def _parse_mp4(self, metadata):
video_formats = []
video_root = None
mp4_video = xpath_text(metadata, './mp4video', default=None)
if mp4_video is not None:
mobj = re.match(r'(?P<root>https?://.*?/).*', mp4_video)
video_root = mobj.group('root')
if video_root is None:
http_host = xpath_text(metadata, 'httpHost', default=None)
if http_host:
video_root = 'http://%s/' % http_host
if video_root is None:
# Hard-coded in http://evt.dispeak.com/ubm/gdc/sf16/custom/player2.js
# Works for GPUTechConf, too
video_root = 'http://s3-2u.digitallyspeaking.com/'
formats = metadata.findall('./MBRVideos/MBRVideo')
if not formats:
return None
for a_format in formats:
stream_name = xpath_text(a_format, 'streamName', fatal=True)
video_path = re.match(r'mp4\:(?P<path>.*)', stream_name).group('path')
url = video_root + video_path
vbr = xpath_text(a_format, 'bitrate')
video_formats.append({
'url': url,
'vbr': int_or_none(vbr),
})
return video_formats
def _parse_flv(self, metadata):
formats = []
akamai_url = xpath_text(metadata, './akamaiHost', fatal=True)
audios = metadata.find('./audios')
if audios is not None:
for audio in audios:
formats.append({
'url': 'rtmp://%s/ondemand?ovpfv=1.1' % akamai_url,
'play_path': remove_end(audio.get('url'), '.flv'),
'ext': 'flv',
'vcodec': 'none',
'format_id': audio.get('code'),
})
slide_video_path = xpath_text(metadata, './slideVideo', fatal=True)
formats.append({
'url': 'rtmp://%s/ondemand?ovpfv=1.1' % akamai_url,
'play_path': remove_end(slide_video_path, '.flv'),
'ext': 'flv',
'format_note': 'slide deck video',
'quality': -2,
'preference': -2,
'format_id': 'slides',
})
speaker_video_path = xpath_text(metadata, './speakerVideo', fatal=True)
formats.append({
'url': 'rtmp://%s/ondemand?ovpfv=1.1' % akamai_url,
'play_path': remove_end(speaker_video_path, '.flv'),
'ext': 'flv',
'format_note': 'speaker video',
'quality': -1,
'preference': -1,
'format_id': 'speaker',
})
return formats
def _real_extract(self, url):
video_id = self._match_id(url)
xml_description = self._download_xml(url, video_id)
metadata = xpath_element(xml_description, 'metadata')
video_formats = self._parse_mp4(metadata)
if video_formats is None:
video_formats = self._parse_flv(metadata)
return {
'id': video_id,
'formats': video_formats,
'title': xpath_text(metadata, 'title', fatal=True),
'duration': parse_duration(xpath_text(metadata, 'endTime')),
'creator': xpath_text(metadata, 'speaker'),
}

1
youtube_dl/extractor/extractors.py
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@ -197,6 +197,7 @@ from .dump import DumpIE
from .dumpert import DumpertIE
from .defense import DefenseGouvFrIE
from .discovery import DiscoveryIE
from .dispeak import DigitalSpeakingIE
from .dropbox import DropboxIE
from .dw import (
DWIE,

74
youtube_dl/extractor/gdcvault.py
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@ -4,7 +4,6 @@ import re
from .common import InfoExtractor
from ..utils import (
remove_end,
HEADRequest,
sanitized_Request,
urlencode_postdata,
@ -64,66 +63,6 @@ class GDCVaultIE(InfoExtractor):
},
]
def _parse_mp4(self, xml_description):
video_formats = []
video_root = None
mp4_video = xml_description.find('./metadata/mp4video')
if mp4_video is not None:
mobj = re.match(r'(?P<root>https?://.*?/).*', mp4_video.text)
video_root = mobj.group('root')
if video_root is None:
# Hard-coded in http://evt.dispeak.com/ubm/gdc/sf16/custom/player2.js
video_root = 'http://s3-2u.digitallyspeaking.com/'
formats = xml_description.findall('./metadata/MBRVideos/MBRVideo')
if not formats:
return None
for format in formats:
mobj = re.match(r'mp4\:(?P<path>.*)', format.find('streamName').text)
url = video_root + mobj.group('path')
vbr = format.find('bitrate').text
video_formats.append({
'url': url,
'vbr': int(vbr),
})
return video_formats
def _parse_flv(self, xml_description):
formats = []
akamai_url = xml_description.find('./metadata/akamaiHost').text
audios = xml_description.find('./metadata/audios')
if audios is not None:
for audio in audios:
formats.append({
'url': 'rtmp://%s/ondemand?ovpfv=1.1' % akamai_url,
'play_path': remove_end(audio.get('url'), '.flv'),
'ext': 'flv',
'vcodec': 'none',
'format_id': audio.get('code'),
})
slide_video_path = xml_description.find('./metadata/slideVideo').text
formats.append({
'url': 'rtmp://%s/ondemand?ovpfv=1.1' % akamai_url,
'play_path': remove_end(slide_video_path, '.flv'),
'ext': 'flv',
'format_note': 'slide deck video',
'quality': -2,
'preference': -2,
'format_id': 'slides',
})
speaker_video_path = xml_description.find('./metadata/speakerVideo').text
formats.append({
'url': 'rtmp://%s/ondemand?ovpfv=1.1' % akamai_url,
'play_path': remove_end(speaker_video_path, '.flv'),
'ext': 'flv',
'format_note': 'speaker video',
'quality': -1,
'preference': -1,
'format_id': 'speaker',
})
return formats
def _login(self, webpage_url, display_id):
(username, password) = self._get_login_info()
if username is None or password is None:
@ -199,17 +138,10 @@ class GDCVaultIE(InfoExtractor):
r'<iframe src=".*?\?xmlURL=xml/(?P<xml_file>.+?\.xml).*?".*?</iframe>',
start_page, 'xml filename')
xml_description = self._download_xml(
'%s/xml/%s' % (xml_root, xml_name), display_id)
video_title = xml_description.find('./metadata/title').text
video_formats = self._parse_mp4(xml_description)
if video_formats is None:
video_formats = self._parse_flv(xml_description)
return {
'_type': 'url_transparent',
'id': video_id,
'display_id': display_id,
'title': video_title,
'formats': video_formats,
'url': '%s/xml/%s' % (xml_root, xml_name),
'ie': 'DigitalSpeaking',
}

36
youtube_dl/extractor/gputechconf.py
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@ -2,12 +2,6 @@
from __future__ import unicode_literals
from .common import InfoExtractor
from ..utils import (
xpath_element,
xpath_text,
int_or_none,
parse_duration,
)
class GPUTechConfIE(InfoExtractor):
@ -27,29 +21,15 @@ class GPUTechConfIE(InfoExtractor):
video_id = self._match_id(url)
webpage = self._download_webpage(url, video_id)
root_path = self._search_regex(r'var\s+rootPath\s*=\s*"([^"]+)', webpage, 'root path', 'http://evt.dispeak.com/nvidia/events/gtc15/')
xml_file_id = self._search_regex(r'var\s+xmlFileId\s*=\s*"([^"]+)', webpage, 'xml file id')
doc = self._download_xml('%sxml/%s.xml' % (root_path, xml_file_id), video_id)
metadata = xpath_element(doc, 'metadata')
http_host = xpath_text(metadata, 'httpHost', 'http host', True)
mbr_videos = xpath_element(metadata, 'MBRVideos')
formats = []
for mbr_video in mbr_videos.findall('MBRVideo'):
stream_name = xpath_text(mbr_video, 'streamName')
if stream_name:
formats.append({
'url': 'http://%s/%s' % (http_host, stream_name.replace('mp4:', '')),
'tbr': int_or_none(xpath_text(mbr_video, 'bitrate')),
})
self._sort_formats(formats)
root_path = self._search_regex(
r'var\s+rootPath\s*=\s*"([^"]+)', webpage, 'root path',
default='http://evt.dispeak.com/nvidia/events/gtc15/')
xml_file_id = self._search_regex(
r'var\s+xmlFileId\s*=\s*"([^"]+)', webpage, 'xml file id')
return {
'_type': 'url_transparent',
'id': video_id,
'title': xpath_text(metadata, 'title'),
'duration': parse_duration(xpath_text(metadata, 'endTime')),
'creator': xpath_text(metadata, 'speaker'),
'formats': formats,
'url': '%sxml/%s.xml' % (root_path, xml_file_id),
'ie': 'DigitalSpeaking',
}

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