[ustream] Support HLS streams (closes #10698)

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Yen Chi Hsuan 2016-09-23 01:11:13 +08:00
parent 0a439c5c4c
commit e3d6bdc8fc
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2 changed files with 126 additions and 1 deletions

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@ -1,3 +1,8 @@
version <unreleased>
Extractors
+ [ustream] Support the new HLS streams (#10698)
version 2016.09.19
Extractors

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@ -1,15 +1,20 @@
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,
)
@ -47,8 +52,108 @@ class UstreamIE(InfoExtractor):
'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')
@ -86,7 +191,22 @@ class UstreamIE(InfoExtractor):
'url': video_url,
'ext': format_id,
'filesize': filesize,
} for format_id, video_url in video['media_urls'].items()]
} 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')