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youtube-dl/youtube_dl/extractor/ustream.py
Yen Chi Hsuan e3d6bdc8fc
[ustream] Support HLS streams (closes #10698)
2016-09-23 01:11:13 +08:00

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Python
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from __future__ import unicode_literals
import random
import re
from .common import InfoExtractor
from ..compat import (
compat_str,
compat_urlparse,
)
from ..utils import (
encode_data_uri,
ExtractorError,
int_or_none,
float_or_none,
mimetype2ext,
str_or_none,
)
class UstreamIE(InfoExtractor):
_VALID_URL = r'https?://(?:www\.)?ustream\.tv/(?P<type>recorded|embed|embed/recorded)/(?P<id>\d+)'
IE_NAME = 'ustream'
_TESTS = [{
'url': 'http://www.ustream.tv/recorded/20274954',
'md5': '088f151799e8f572f84eb62f17d73e5c',
'info_dict': {
'id': '20274954',
'ext': 'flv',
'title': 'Young Americans for Liberty February 7, 2012 2:28 AM',
'description': 'Young Americans for Liberty February 7, 2012 2:28 AM',
'timestamp': 1328577035,
'upload_date': '20120207',
'uploader': 'yaliberty',
'uploader_id': '6780869',
},
}, {
# From http://sportscanada.tv/canadagames/index.php/week2/figure-skating/444
# Title and uploader available only from params JSON
'url': 'http://www.ustream.tv/embed/recorded/59307601?ub=ff0000&lc=ff0000&oc=ffffff&uc=ffffff&v=3&wmode=direct',
'md5': '5a2abf40babeac9812ed20ae12d34e10',
'info_dict': {
'id': '59307601',
'ext': 'flv',
'title': '-CG11- Canada Games Figure Skating',
'uploader': 'sportscanadatv',
},
'skip': 'This Pro Broadcaster has chosen to remove this video from the ustream.tv site.',
}, {
'url': 'http://www.ustream.tv/embed/10299409',
'info_dict': {
'id': '10299409',
},
'playlist_count': 3,
}, {
'url': 'http://www.ustream.tv/recorded/91343263',
'info_dict': {
'id': '91343263',
'ext': 'mp4',
'title': 'GitHub Universe - General Session - Day 1',
'upload_date': '20160914',
'description': 'GitHub Universe - General Session - Day 1',
'timestamp': 1473872730,
'uploader': 'wa0dnskeqkr',
'uploader_id': '38977840',
},
'params': {
'skip_download': True, # m3u8 download
},
}]
def _get_stream_info(self, url, video_id, app_id_ver, extra_note=None):
def num_to_hex(n):
return hex(n)[2:]
rnd = random.randrange
if not extra_note:
extra_note = ''
conn_info = self._download_json(
'http://r%d-1-%s-recorded-lp-live.ums.ustream.tv/1/ustream' % (rnd(1e8), video_id),
video_id, note='Downloading connection info' + extra_note,
query={
'type': 'viewer',
'appId': app_id_ver[0],
'appVersion': app_id_ver[1],
'rsid': '%s:%s' % (num_to_hex(rnd(1e8)), num_to_hex(rnd(1e8))),
'rpin': '_rpin.%d' % rnd(1e15),
'referrer': url,
'media': video_id,
'application': 'recorded',
})
host = conn_info[0]['args'][0]['host']
connection_id = conn_info[0]['args'][0]['connectionId']
return self._download_json(
'http://%s/1/ustream?connectionId=%s' % (host, connection_id),
video_id, note='Downloading stream info' + extra_note)
def _get_streams(self, url, video_id, app_id_ver):
# Sometimes the return dict does not have 'stream'
for trial_count in range(3):
stream_info = self._get_stream_info(
url, video_id, app_id_ver,
extra_note=' (try %d)' % (trial_count + 1) if trial_count > 0 else '')
if 'stream' in stream_info[0]['args'][0]:
return stream_info[0]['args'][0]['stream']
return []
def _parse_segmented_mp4(self, dash_stream_info):
def resolve_dash_template(template, idx, chunk_hash):
return template.replace('%', compat_str(idx), 1).replace('%', chunk_hash)
formats = []
for stream in dash_stream_info['streams']:
# Use only one provider to avoid too many formats
provider = dash_stream_info['providers'][0]
fragments = [{
'url': resolve_dash_template(
provider['url'] + stream['initUrl'], 0, dash_stream_info['hashes']['0'])
}]
for idx in range(dash_stream_info['videoLength'] // dash_stream_info['chunkTime']):
fragments.append({
'url': resolve_dash_template(
provider['url'] + stream['segmentUrl'], idx,
dash_stream_info['hashes'][compat_str(idx // 10 * 10)])
})
content_type = stream['contentType']
kind = content_type.split('/')[0]
f = {
'format_id': '-'.join(filter(None, [
'dash', kind, str_or_none(stream.get('bitrate'))])),
'protocol': 'http_dash_segments',
# TODO: generate a MPD doc for external players?
'url': encode_data_uri(b'<MPD/>', 'text/xml'),
'ext': mimetype2ext(content_type),
'height': stream.get('height'),
'width': stream.get('width'),
'fragments': fragments,
}
if kind == 'video':
f.update({
'vcodec': stream.get('codec'),
'acodec': 'none',
'vbr': stream.get('bitrate'),
})
else:
f.update({
'vcodec': 'none',
'acodec': stream.get('codec'),
'abr': stream.get('bitrate'),
})
formats.append(f)
return formats
def _real_extract(self, url):
m = re.match(self._VALID_URL, url)
video_id = m.group('id')
# some sites use this embed format (see: https://github.com/rg3/youtube-dl/issues/2990)
if m.group('type') == 'embed/recorded':
video_id = m.group('id')
desktop_url = 'http://www.ustream.tv/recorded/' + video_id
return self.url_result(desktop_url, 'Ustream')
if m.group('type') == 'embed':
video_id = m.group('id')
webpage = self._download_webpage(url, video_id)
content_video_ids = self._parse_json(self._search_regex(
r'ustream\.vars\.offAirContentVideoIds=([^;]+);', webpage,
'content video IDs'), video_id)
return self.playlist_result(
map(lambda u: self.url_result('http://www.ustream.tv/recorded/' + u, 'Ustream'), content_video_ids),
video_id)
params = self._download_json(
'https://api.ustream.tv/videos/%s.json' % video_id, video_id)
error = params.get('error')
if error:
raise ExtractorError(
'%s returned error: %s' % (self.IE_NAME, error), expected=True)
video = params['video']
title = video['title']
filesize = float_or_none(video.get('file_size'))
formats = [{
'id': video_id,
'url': video_url,
'ext': format_id,
'filesize': filesize,
} for format_id, video_url in video['media_urls'].items() if video_url]
if not formats:
hls_streams = self._get_streams(url, video_id, app_id_ver=(11, 2))
if hls_streams:
# m3u8_native leads to intermittent ContentTooShortError
formats.extend(self._extract_m3u8_formats(
hls_streams[0]['url'], video_id, ext='mp4', m3u8_id='hls'))
'''
# DASH streams handling is incomplete as 'url' is missing
dash_streams = self._get_streams(url, video_id, app_id_ver=(3, 1))
if dash_streams:
formats.extend(self._parse_segmented_mp4(dash_streams))
'''
self._sort_formats(formats)
description = video.get('description')
timestamp = int_or_none(video.get('created_at'))
duration = float_or_none(video.get('length'))
view_count = int_or_none(video.get('views'))
uploader = video.get('owner', {}).get('username')
uploader_id = video.get('owner', {}).get('id')
thumbnails = [{
'id': thumbnail_id,
'url': thumbnail_url,
} for thumbnail_id, thumbnail_url in video.get('thumbnail', {}).items()]
return {
'id': video_id,
'title': title,
'description': description,
'thumbnails': thumbnails,
'timestamp': timestamp,
'duration': duration,
'view_count': view_count,
'uploader': uploader,
'uploader_id': uploader_id,
'formats': formats,
}
class UstreamChannelIE(InfoExtractor):
_VALID_URL = r'https?://(?:www\.)?ustream\.tv/channel/(?P<slug>.+)'
IE_NAME = 'ustream:channel'
_TEST = {
'url': 'http://www.ustream.tv/channel/channeljapan',
'info_dict': {
'id': '10874166',
},
'playlist_mincount': 17,
}
def _real_extract(self, url):
m = re.match(self._VALID_URL, url)
display_id = m.group('slug')
webpage = self._download_webpage(url, display_id)
channel_id = self._html_search_meta('ustream:channel_id', webpage)
BASE = 'http://www.ustream.tv'
next_url = '/ajax/socialstream/videos/%s/1.json' % channel_id
video_ids = []
while next_url:
reply = self._download_json(
compat_urlparse.urljoin(BASE, next_url), display_id,
note='Downloading video information (next: %d)' % (len(video_ids) + 1))
video_ids.extend(re.findall(r'data-content-id="(\d.*)"', reply['data']))
next_url = reply['nextUrl']
entries = [
self.url_result('http://www.ustream.tv/recorded/' + vid, 'Ustream')
for vid in video_ids]
return {
'_type': 'playlist',
'id': channel_id,
'display_id': display_id,
'entries': entries,
}
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