ytdl/youtube_dl/extractor/zdf.py
2013-11-25 03:28:55 +01:00

112 lines
3.9 KiB
Python

import operator
import re
from .common import InfoExtractor
from ..utils import (
parse_xml_doc,
unified_strdate,
)
class ZDFIE(InfoExtractor):
_VALID_URL = r'^http://www\.zdf\.de\/ZDFmediathek(?P<hash>#)?\/(.*beitrag\/video\/)(?P<video_id>[^/\?]+)(?:\?.*)?'
def _real_extract(self, url):
mobj = re.match(self._VALID_URL, url)
video_id = mobj.group('video_id')
xml_url = u'http://www.zdf.de/ZDFmediathek/xmlservice/web/beitragsDetails?ak=web&id=%s' % video_id
info_xml = self._download_webpage(
xml_url, video_id, note=u'Downloading video info')
doc = parse_xml_doc(info_xml)
title = doc.find('.//information/title').text
description = doc.find('.//information/detail').text
uploader_node = doc.find('.//details/originChannelTitle')
uploader = None if uploader_node is None else uploader_node.text
duration_str = doc.find('.//details/length').text
duration_m = re.match(r'''(?x)^
(?P<hours>[0-9]{2})
:(?P<minutes>[0-9]{2})
:(?P<seconds>[0-9]{2})
(?:\.(?P<ms>[0-9]+)?)
''', duration_str)
duration = (
(
(int(duration_m.group('hours')) * 60 * 60) +
(int(duration_m.group('minutes')) * 60) +
int(duration_m.group('seconds'))
)
if duration_m
else None
)
upload_date = unified_strdate(doc.find('.//details/airtime').text)
def xml_to_format(fnode):
video_url = fnode.find('url').text
is_available = u'http://www.metafilegenerator' not in video_url
format_id = fnode.attrib['basetype']
format_m = re.match(r'''(?x)
(?P<vcodec>[^_]+)_(?P<acodec>[^_]+)_(?P<container>[^_]+)_
(?P<proto>[^_]+)_(?P<index>[^_]+)_(?P<indexproto>[^_]+)
''', format_id)
ext = format_m.group('container')
is_supported = ext != 'f4f'
PROTO_ORDER = ['http', 'rtmp', 'rtsp']
try:
proto_pref = -PROTO_ORDER.index(format_m.group('proto'))
except ValueError:
proto_pref = 999
quality = fnode.find('./quality').text
QUALITY_ORDER = ['veryhigh', '300', 'high', 'med', 'low']
try:
quality_pref = -QUALITY_ORDER.index(quality)
except ValueError:
quality_pref = 999
abr = int(fnode.find('./audioBitrate').text) // 1000
vbr = int(fnode.find('./videoBitrate').text) // 1000
pref = (is_available, is_supported,
proto_pref, quality_pref, vbr, abr)
format_note = u''
if not is_supported:
format_note += u'(unsupported)'
if not format_note:
format_note = None
return {
'format_id': format_id + u'-' + quality,
'url': video_url,
'ext': ext,
'acodec': format_m.group('acodec'),
'vcodec': format_m.group('vcodec'),
'abr': abr,
'vbr': vbr,
'width': int(fnode.find('./width').text),
'height': int(fnode.find('./height').text),
'filesize': int(fnode.find('./filesize').text),
'format_note': format_note,
'_pref': pref,
'_available': is_available,
}
format_nodes = doc.findall('.//formitaeten/formitaet')
formats = sorted(filter(lambda f: f['_available'],
map(xml_to_format, format_nodes)),
key=operator.itemgetter('_pref'))
return {
'id': video_id,
'title': title,
'formats': formats,
'description': description,
'uploader': uploader,
'duration': duration,
'upload_date': upload_date,
}