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mirror of https://github.com/l1ving/youtube-dl synced 2024-11-20 21:52:54 +08:00
youtube-dl/youtube_dl/extractor/zdf.py
2017-01-05 04:04:53 +07:00

307 lines
11 KiB
Python

# coding: utf-8
from __future__ import unicode_literals
import functools
import re
from .common import InfoExtractor
from ..utils import (
OnDemandPagedList,
determine_ext,
parse_iso8601,
ExtractorError
)
from ..compat import compat_str
class ZDFIE(InfoExtractor):
_VALID_URL = r'https?://www\.zdf\.de/.*?/(?P<id>[^/?]*?)\.html'
_TESTS = [{
'url': 'https://www.zdf.de/service-und-hilfe/die-neue-zdf-mediathek/zdfmediathek-trailer-100.html',
'info_dict': {
'id': 'zdfmediathek-trailer-100',
'ext': 'mp4',
'title': 'Trailer ZDFmediathek Supermarkt',
}
}]
def _real_extract(self, url):
video_id = self._match_id(url)
try:
extr_player = ZDFExtractorPlayer(self, url, video_id)
formats = extr_player._real_extract()
except (ExtractorError, KeyError) as e:
self._downloader.report_warning('%s: %s\nusing fallback method (mobile url)' % (type(e).__name__, compat_str(e)))
extr_mobile = ZDFExtractorMobile(self, url, video_id)
formats = extr_mobile._real_extract()
return formats
class ZDFExtractor:
"""Super class for the 2 extraction methods"""
def __init__(self, parent, url, video_id):
self.parent = parent
self.url = url
self.video_id = video_id
def _real_extract(self):
formats = []
for entry in self._fetch_entries():
video_url = self._get_video_url(entry)
if not video_url:
continue
format_id = self._get_format_id(entry)
ext = determine_ext(video_url, None)
if ext == 'meta':
continue
if ext == 'm3u8':
formats.extend(self.parent._extract_m3u8_formats(
video_url, self.video_id, 'mp4', m3u8_id=format_id, fatal=False))
elif ext == 'f4m':
formats.extend(self.parent._extract_f4m_formats(
video_url, self.video_id, f4m_id=format_id, fatal=False))
else:
formats.append({
'format_id': format_id,
'url': video_url,
'format_note': self._get_format_note(entry)
})
self.parent._sort_formats(formats)
return {
'id': self.video_id,
'title': self._get_title(),
'formats': formats,
'subtitles': self._get_subtitles(),
'thumbnail': self._get_thumbnail(),
'description': self._get_description(),
'timestamp': self._get_timestamp()
}
class ZDFExtractorMobile(ZDFExtractor):
"""Simple URL extraction method. Disadvantage: fewer formats, no subtitles"""
def __init__(self, parent, url, video_id):
ZDFExtractor.__init__(self, parent, url, video_id)
def _fetch_entries(self):
meta_data_url = 'https://zdf-cdn.live.cellular.de/mediathekV2/document/' + self.video_id
self.meta_data = self.parent._download_json(meta_data_url, self.video_id, note='Downloading meta data')
return self.meta_data['document']['formitaeten']
def _get_title(self):
return self.meta_data['document']['titel']
def _get_video_url(self, entry):
return entry['url']
def _get_format_id(self, entry):
format_id = entry['type']
if 'quality' in entry:
format_id += '-' + entry['quality']
return format_id
def _get_format_note(self, entry):
return None
def _get_subtitles(self):
return None
def _get_description(self):
return self.meta_data['document'].get('beschreibung')
def _get_timestamp(self):
meta = self.meta_data['meta']
if meta:
return parse_iso8601(meta.get('editorialDate'))
def _get_thumbnail(self):
teaser_images = self.meta_data['document'].get('teaserBild')
if teaser_images:
max_res = max(teaser_images, key=int)
return teaser_images[max_res].get('url')
class ZDFExtractorPlayer(ZDFExtractor):
"""Extraction method that requires downloads of several pages.
Follows the requests of the website."""
def __init__(self, parent, url, video_id):
ZDFExtractor.__init__(self, parent, url, video_id)
def _fetch_entries(self):
webpage = self.parent._download_webpage(self.url, self.video_id)
jsb = self.parent._search_regex(r"data-zdfplayer-jsb='([^']*)'", webpage, 'zdfplayer jsb data')
jsb_json = self.parent._parse_json(jsb, self.video_id)
configuration_url = 'https://www.zdf.de' + jsb_json['config']
configuration_json = self.parent._download_json(configuration_url, self.video_id, note='Downloading player configuration')
api_token = configuration_json['apiToken']
player_js = self.parent._download_webpage('https://www.zdf.de/ZDFplayer/latest-v2/skins/zdf/zdf-player.js', self.video_id, fatal=False, note='Downloading player script')
if player_js:
player_id = self.parent._search_regex(r'this\.ptmd_player_id="([^"]*)"', player_js, 'player id', fatal=False)
else:
player_id = None
self.content_json = self.parent._download_json(jsb_json['content'], self.video_id, headers={'Api-Auth': 'Bearer %s' % api_token}, note='Downloading content description')
main_video_content = self.content_json['mainVideoContent']['http://zdf.de/rels/target']
meta_data_url = None
if not player_id:
# could not determine player_id => try alternativ generic URL
meta_data_url = main_video_content.get('http://zdf.de/rels/streams/ptmd')
if meta_data_url:
meta_data_url = 'https://api.zdf.de' + meta_data_url
else:
# no generic URL found => 2nd fallback: hardcoded player_id
player_id = 'ngplayer_2_3'
if not meta_data_url:
meta_data_url_template = main_video_content['http://zdf.de/rels/streams/ptmd-template']
meta_data_url = 'https://api.zdf.de' + meta_data_url_template.replace('{playerId}', player_id)
self.meta_data = self.parent._download_json(meta_data_url, self.video_id, note='Downloading meta data')
formats = []
for p_list_entry in self.meta_data['priorityList']:
for formitaet in p_list_entry['formitaeten']:
for entry in formitaet['qualities']:
yield (formitaet, entry)
def _get_title(self):
return self.content_json['title']
def _get_video_url(self, entry_tuple):
(formitaet, entry) = entry_tuple
tracks = entry['audio'].get('tracks')
if not tracks:
return
if len(tracks) > 1:
self._downloader.report_warning('unexpected input: multiple tracks')
track = tracks[0]
return track['uri']
def _get_format_id(self, entry_tuple):
(formitaet, entry) = entry_tuple
facets = self._get_facets(formitaet)
add = ''
if 'adaptive' in facets:
add += 'a'
if 'restriction_useragent' in facets:
add += 'b'
if 'progressive' in facets:
add += 'p'
type_ = formitaet['type']
format_id = type_ + '-'
if add:
format_id += add + '-'
# named qualities are not very useful for sorting the formats:
# a 'high' m3u8 entry can be better quality than a 'veryhigh' direct mp4 download
format_id += entry['quality']
return format_id
def _get_facets(self, formitaet):
facets = formitaet.get('facets') or []
if formitaet.get('isAdaptive'):
facets.append('adaptive')
return facets
def _get_format_note(self, entry_tuple):
(formitaet, entry) = entry_tuple
return ', '.join(self._get_facets(formitaet))
def _get_subtitles(self):
subtitles = {}
if 'captions' in self.meta_data:
for caption in self.meta_data['captions']:
lang = caption.get('language')
if not lang:
continue
if lang == 'deu':
lang = 'de'
subformat = {'url': caption.get('uri')}
if caption.get('format') == 'webvtt':
subformat['ext'] = 'vtt'
elif caption.get('format') == 'ebu-tt-d-basic-de':
subformat['ext'] = 'ttml'
if not lang in subtitles:
subtitles[lang] = []
subtitles[lang].append(subformat)
return subtitles
def _get_description(self):
return self.content_json.get('teasertext')
def _get_timestamp(self):
return parse_iso8601(self.content_json.get('editorialDate'))
def _get_thumbnail(self):
teaser_images = self.content_json.get('teaserImageRef')
if teaser_images:
teaser_images_layouts = teaser_images.get('layouts')
if teaser_images_layouts:
if 'original' in teaser_images_layouts:
return teaser_images_layouts['original']
teasers = {}
for key in teaser_images_layouts:
width = self.parent._search_regex(r'(\d+)x\d+', key, 'teaser width', fatal=False)
if width:
teasers[int(width)] = teaser_images_layouts[key]
if teasers:
best = max(teasers)
return teasers[best]
class ZDFChannelIE(InfoExtractor):
_WORKING = False
_VALID_URL = r'(?:zdf:topic:|https?://www\.zdf\.de/ZDFmediathek(?:#)?/.*kanaluebersicht/(?:[^/]+/)?)(?P<id>[0-9]+)'
_TESTS = [{
'url': 'http://www.zdf.de/ZDFmediathek#/kanaluebersicht/1586442/sendung/Titanic',
'info_dict': {
'id': '1586442',
},
'playlist_count': 3,
}, {
'url': 'http://www.zdf.de/ZDFmediathek/kanaluebersicht/aktuellste/332',
'only_matching': True,
}, {
'url': 'http://www.zdf.de/ZDFmediathek/kanaluebersicht/meist-gesehen/332',
'only_matching': True,
}, {
'url': 'http://www.zdf.de/ZDFmediathek/kanaluebersicht/_/1798716?bc=nrt;nrm?flash=off',
'only_matching': True,
}]
_PAGE_SIZE = 50
def _fetch_page(self, channel_id, page):
offset = page * self._PAGE_SIZE
xml_url = (
'http://www.zdf.de/ZDFmediathek/xmlservice/web/aktuellste?ak=web&offset=%d&maxLength=%d&id=%s'
% (offset, self._PAGE_SIZE, channel_id))
doc = self._download_xml(
xml_url, channel_id,
note='Downloading channel info',
errnote='Failed to download channel info')
title = doc.find('.//information/title').text
description = doc.find('.//information/detail').text
for asset in doc.findall('.//teasers/teaser'):
a_type = asset.find('./type').text
a_id = asset.find('./details/assetId').text
if a_type not in ('video', 'topic'):
continue
yield {
'_type': 'url',
'playlist_title': title,
'playlist_description': description,
'url': 'zdf:%s:%s' % (a_type, a_id),
}
def _real_extract(self, url):
channel_id = self._match_id(url)
entries = OnDemandPagedList(
functools.partial(self._fetch_page, channel_id), self._PAGE_SIZE)
return {
'_type': 'playlist',
'id': channel_id,
'entries': entries,
}