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[bbc] Improve playlist extraction, refactor, expand support and document

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pull/8/head
Sergey M․ 10 years ago
parent ff81c4c99c
commit 9afa1770d1
2 changed files with 259 additions and 121 deletions
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5
youtube_dl/extractor/__init__.py
Unescape Escape View File

@ -43,7 +43,10 @@ from .azubu import AzubuIE
from .baidu import BaiduVideoIE
from .bambuser import BambuserIE, BambuserChannelIE
from .bandcamp import BandcampIE, BandcampAlbumIE
from .bbc import BBCCoUkIE, BBCNewsIE
from .bbc import (
BBCCoUkIE,
BBCIE,
)
from .beeg import BeegIE
from .behindkink import BehindKinkIE
from .beatportpro import BeatportProIE

375
youtube_dl/extractor/bbc.py
Unescape Escape View File

@ -1,15 +1,18 @@
# coding: utf-8
from __future__ import unicode_literals
import re
import xml.etree.ElementTree
from .common import InfoExtractor
from ..utils import (
ExtractorError,
parse_duration,
float_or_none,
int_or_none,
parse_duration,
parse_iso8601,
)
from ..compat import compat_HTTPError
import re
class BBCCoUkIE(InfoExtractor):
@ -17,7 +20,7 @@ class BBCCoUkIE(InfoExtractor):
IE_DESC = 'BBC iPlayer'
_VALID_URL = r'https?://(?:www\.)?bbc\.co\.uk/(?:(?:(?:programmes|iplayer(?:/[^/]+)?/(?:episode|playlist))/)|music/clips[/#])(?P<id>[\da-z]{8})'
mediaselector_url = 'http://open.live.bbc.co.uk/mediaselector/5/select/version/2.0/mediaset/pc/vpid/%s'
_MEDIASELECTOR_URL = 'http://open.live.bbc.co.uk/mediaselector/5/select/version/2.0/mediaset/pc/vpid/%s'
_TESTS = [
{
@ -264,16 +267,21 @@ class BBCCoUkIE(InfoExtractor):
return subtitles
def _download_media_selector(self, programme_id):
return self._download_media_selector_url(
self._MEDIASELECTOR_URL % programme_id, programme_id)
def _download_media_selector_url(self, url, programme_id=None):
try:
media_selection = self._download_xml(
self.mediaselector_url % programme_id,
programme_id, 'Downloading media selection XML')
url, programme_id, 'Downloading media selection XML')
except ExtractorError as ee:
if isinstance(ee.cause, compat_HTTPError) and ee.cause.code == 403:
media_selection = xml.etree.ElementTree.fromstring(ee.cause.read().decode('utf-8'))
else:
raise
return self._process_media_selector(media_selection, programme_id)
def _process_media_selector(self, media_selection, programme_id):
formats = []
subtitles = None
@ -312,10 +320,21 @@ class BBCCoUkIE(InfoExtractor):
raise
# fallback to legacy playlist
playlist = self._download_xml(
'http://www.bbc.co.uk/iplayer/playlist/%s' % playlist_id,
playlist_id, 'Downloading legacy playlist XML')
return self._process_legacy_playlist(playlist_id)
def _process_legacy_playlist_url(self, url, display_id):
playlist = self._download_legacy_playlist_url(url, display_id)
return self._extract_from_legacy_playlist(playlist, display_id)
def _process_legacy_playlist(self, playlist_id):
return self._process_legacy_playlist_url(
'http://www.bbc.co.uk/iplayer/playlist/%s' % playlist_id, playlist_id)
def _download_legacy_playlist_url(self, url, playlist_id=None):
return self._download_xml(
url, playlist_id, 'Downloading legacy playlist XML')
def _extract_from_legacy_playlist(self, playlist, playlist_id):
no_items = playlist.find('./{http://bbc.co.uk/2008/emp/playlist}noItems')
if no_items is not None:
reason = no_items.get('reason')
@ -335,8 +354,23 @@ class BBCCoUkIE(InfoExtractor):
continue
title = playlist.find('./{http://bbc.co.uk/2008/emp/playlist}title').text
description = playlist.find('./{http://bbc.co.uk/2008/emp/playlist}summary').text
programme_id = item.get('identifier')
def get_programme_id(item):
def get_from_attributes(item):
for p in('identifier', 'group'):
value = item.get(p)
if value and re.match(r'^[pb][\da-z]{7}$', value):
return value
get_from_attributes(item)
mediator = item.find('./{http://bbc.co.uk/2008/emp/playlist}mediator')
if mediator is not None:
return get_from_attributes(mediator)
programme_id = get_programme_id(item)
duration = int_or_none(item.get('duration'))
# TODO: programme_id can be None and media items can be incorporated right inside
# playlist's item (e.g. http://www.bbc.com/turkce/haberler/2015/06/150615_telabyad_kentin_cogu)
# as f4m and m3u8
formats, subtitles = self._download_media_selector(programme_id)
return programme_id, title, description, duration, formats, subtitles
@ -383,175 +417,276 @@ class BBCCoUkIE(InfoExtractor):
}
class BBCNewsIE(BBCCoUkIE):
IE_NAME = 'bbc.com'
IE_DESC = 'BBC news'
_VALID_URL = r'https?://(?:www\.)?bbc\.com/.+?/(?P<id>[^/]+)$'
class BBCIE(BBCCoUkIE):
IE_NAME = 'bbc'
IE_DESC = 'BBC'
_VALID_URL = r'https?://(?:www\.)?bbc\.(?:com|co\.uk)/(?:[^/]+/)+(?P<id>[^/#?]+)'
mediaselector_url = 'http://open.live.bbc.co.uk/mediaselector/4/mtis/stream/%s'
# fails with notukerror for some videos
#_MEDIASELECTOR_URL = 'http://open.live.bbc.co.uk/mediaselector/4/mtis/stream/%s'
_MEDIASELECTOR_URL = 'http://open.live.bbc.co.uk/mediaselector/5/select/version/2.0/mediaset/journalism-pc/vpid/%s'
_TESTS = [{
# article with multiple videos embedded with data-media-meta containing
# playlist.sxml, externalId and no direct video links
'url': 'http://www.bbc.com/news/world-europe-32668511',
'info_dict': {
'id': 'world-europe-32668511',
'title': 'Russia stages massive WW2 parade despite Western boycott',
'description': 'md5:00ff61976f6081841f759a08bf78cc9c',
},
'playlist_count': 2,
}, {
# article with multiple videos embedded with data-media-meta (more videos)
'url': 'http://www.bbc.com/news/business-28299555',
'info_dict': {
'id': 'business-28299555',
'title': 'Farnborough Airshow: Video highlights',
'description': 'BBC reports and video highlights at the Farnborough Airshow.',
},
'playlist_count': 9,
'skip': 'Save time',
}, {
# single video embedded with mediaAssetPage.init()
'url': 'http://www.bbc.com/news/world-europe-32041533',
'note': 'Video',
'info_dict': {
'id': 'p02mprgb',
'ext': 'mp4',
'ext': 'flv',
'title': 'Aerial footage showed the site of the crash in the Alps - courtesy BFM TV',
'description': 'Germanwings plane crash site in aerial video - Aerial footage showed the site of the crash in the Alps - courtesy BFM TV',
'duration': 47,
'timestamp': 1427219242,
'upload_date': '20150324',
'uploader': 'BBC News',
},
'params': {
# rtmp download
'skip_download': True,
}
}, {
# article with single video embedded with data-media-meta containing
# direct video links (for now these are extracted) and playlist.xml (with
# media items as f4m and m3u8 - currently unsupported)
'url': 'http://www.bbc.com/turkce/haberler/2015/06/150615_telabyad_kentin_cogu',
'note': 'Video',
'info_dict': {
'id': 'NA',
'id': '150615_telabyad_kentin_cogu',
'ext': 'mp4',
'title': 'YPG: Tel Abyad\'\u0131n tamam\u0131 kontrol\xfcm\xfczde',
'description': 'YPG: Tel Abyad\'\u0131n tamam\u0131 kontrol\xfcm\xfczde',
'title': "YPG: Tel Abyad'ın tamamı kontrolümüzde",
'duration': 47,
'timestamp': 1434397334,
'upload_date': '20150615',
'uploader': 'BBC News',
},
'params': {
'skip_download': True,
}
}, {
# single video embedded with mediaAssetPage.init() (regional section)
'url': 'http://www.bbc.com/mundo/video_fotos/2015/06/150619_video_honduras_militares_hospitales_corrupcion_aw',
'note': 'Video',
'info_dict': {
'id': '39275083',
'id': '150619_video_honduras_militares_hospitales_corrupcion_aw',
'ext': 'mp4',
'title': 'Honduras militariza sus hospitales por nuevo esc\xe1ndalo de corrupci\xf3n',
'description': 'Honduras militariza sus hospitales por nuevo esc\xe1ndalo de corrupci\xf3n',
'title': 'Honduras militariza sus hospitales por nuevo escándalo de corrupción',
'duration': 87,
'timestamp': 1434713142,
'upload_date': '20150619',
'uploader': 'BBC News',
},
'params': {
'skip_download': True,
}
}, {
# single video story with digitalData
'url': 'http://www.bbc.com/travel/story/20150625-sri-lankas-spicy-secret',
'info_dict': {
'id': 'p02q6gc4',
'ext': 'flv',
'title': 'Sri Lanka’s spicy secret',
'description': 'As a new train line to Jaffna opens up the country’s north, travellers can experience a truly distinct slice of Tamil culture.',
'timestamp': 1437674293,
'upload_date': '20150723',
},
'params': {
# rtmp download
'skip_download': True,
}
}, {
# single video story without digitalData
'url': 'http://www.bbc.com/autos/story/20130513-hyundais-rock-star',
'info_dict': {
'id': 'p018zqqg',
'ext': 'flv',
'title': 'Hyundai Santa Fe Sport: Rock star',
'description': 'md5:b042a26142c4154a6e472933cf20793d',
'timestamp': 1368473503,
'upload_date': '20130513',
},
'params': {
# rtmp download
'skip_download': True,
}
}, {
# single video with playlist.sxml URL
'url': 'http://www.bbc.com/sport/0/football/33653409',
'info_dict': {
'id': 'p02xycnp',
'ext': 'flv',
'title': 'Transfers: Cristiano Ronaldo to Man Utd, Arsenal to spend?',
'description': 'md5:398fca0e2e701c609d726e034fa1fc89',
'duration': 140,
},
'params': {
# rtmp download
'skip_download': True,
}
}, {
# single video with playlist URL from weather section
'url': 'http://www.bbc.com/weather/features/33601775',
'only_matching': True,
}, {
# custom redirection to www.bbc.com
'url': 'http://www.bbc.co.uk/news/science-environment-33661876',
'only_matching': True,
}]
@classmethod
def suitable(cls, url):
return False if BBCCoUkIE.suitable(url) else super(BBCIE, cls).suitable(url)
def _extract_from_media_meta(self, media_meta, video_id):
# Direct links to media in media metadata (e.g.
# http://www.bbc.com/turkce/haberler/2015/06/150615_telabyad_kentin_cogu)
# TODO: there are also f4m and m3u8 streams incorporated in playlist.sxml
source_files = media_meta.get('sourceFiles')
if source_files:
return [{
'url': f['url'],
'format_id': format_id,
'ext': f.get('encoding'),
'tbr': float_or_none(f.get('bitrate'), 1000),
'filesize': int_or_none(f.get('filesize')),
} for format_id, f in source_files.items() if f.get('url')], []
programme_id = media_meta.get('externalId')
if programme_id:
return self._download_media_selector(programme_id)
# Process playlist.sxml as legacy playlist
href = media_meta.get('href')
if href:
playlist = self._download_legacy_playlist_url(href)
_, _, _, _, formats, subtitles = self._extract_from_legacy_playlist(playlist, video_id)
return formats, subtitles
return [], []
def _real_extract(self, url):
list_id = self._match_id(url)
webpage = self._download_webpage(url, list_id)
list_title = self._html_search_regex(r'<title>(.*?)(?:\s*-\s*BBC [^ ]+)?</title>', webpage, 'list title')
pubdate = self._html_search_regex(r'"datePublished":\s*"(\d+-\d+-\d+)', webpage, 'date', default=None)
if pubdate:
pubdate = pubdate.replace('-', '')
ret = []
jsent = []
# works with bbc.com/news/something-something-123456 articles
jsent = map(
lambda m: self._parse_json(m, list_id),
re.findall(r"data-media-meta='({[^']+})'", webpage)
)
if len(jsent) == 0:
# http://www.bbc.com/news/video_and_audio/international
# and single-video articles
masset = self._html_search_regex(r'mediaAssetPage\.init\(\s*({.+?}), "/', webpage, 'mediaassets', default=None)
if masset:
jmasset = self._parse_json(masset, list_id)
for key, val in jmasset.get('videos', {}).items():
for skey, sval in val.items():
sval['id'] = skey
jsent.append(sval)
if len(jsent) == 0:
# stubbornly generic extractor for {json with "image":{allvideoshavethis},etc}
# in http://www.bbc.com/news/video_and_audio/international
# prone to breaking if entries have sourceFiles list
jsent = map(
lambda m: self._parse_json(m, list_id),
re.findall(r"({[^{}]+image\":{[^}]+}[^}]+})", webpage)
)
if len(jsent) == 0:
raise ExtractorError('No video found', expected=True)
for jent in jsent:
programme_id = jent.get('externalId')
xml_url = jent.get('href')
title = jent.get('caption', '')
if title == '':
title = list_title
duration = parse_duration(jent.get('duration'))
description = list_title
if jent.get('caption', '') != '':
description += ' - ' + jent.get('caption')
thumbnail = None
if jent.get('image') is not None:
thumbnail = jent['image'].get('href')
formats = []
subtitles = []
if programme_id:
formats, subtitles = self._download_media_selector(programme_id)
elif jent.get('sourceFiles') is not None:
# mediaselector not used at
# http://www.bbc.com/turkce/haberler/2015/06/150615_telabyad_kentin_cogu
for key, val in jent['sourceFiles'].items():
formats.append({
'ext': val.get('encoding'),
'url': val.get('url'),
'filesize': int(val.get('filesize')),
'format_id': key
})
elif xml_url:
# Cheap fallback
# http://playlists.bbc.co.uk/news/(list_id)[ABC..]/playlist.sxml
xml = self._download_webpage(xml_url, programme_id, 'Downloading playlist.sxml for externalId (fallback)')
programme_id = self._search_regex(r'<mediator [^>]*identifier="(.+?)"', xml, 'playlist.sxml (externalId fallback)')
formats, subtitles = self._download_media_selector(programme_id)
playlist_id = self._match_id(url)
webpage = self._download_webpage(url, playlist_id)
timestamp = parse_iso8601(self._search_regex(
[r'"datePublished":\s*"([^"]+)',
r'<meta[^>]+property="article:published_time"[^>]+content="([^"]+)"',
r'itemprop="datePublished"[^>]+datetime="([^"]+)"'],
webpage, 'date', default=None))
# single video with playlist.sxml URL (e.g. http://www.bbc.com/sport/0/football/3365340ng)
playlist = self._search_regex(
r'<param[^>]+name="playlist"[^>]+value="([^"]+)"',
webpage, 'playlist', default=None)
if playlist:
programme_id, title, description, duration, formats, subtitles = \
self._process_legacy_playlist_url(playlist, playlist_id)
self._sort_formats(formats)
return {
'id': programme_id,
'title': title,
'description': description,
'duration': duration,
'timestamp': timestamp,
'formats': formats,
'subtitles': subtitles,
}
if len(formats) == 0:
raise ExtractorError('unsupported json media entry.\n ' + str(jent) + '\n')
# single video story (e.g. http://www.bbc.com/travel/story/20150625-sri-lankas-spicy-secret)
programme_id = self._search_regex(
[r'data-video-player-vpid="([\da-z]{8})"',
r'<param[^>]+name="externalIdentifier"[^>]+value="([\da-z]{8})"'],
webpage, 'vpid', default=None)
if programme_id:
formats, subtitles = self._download_media_selector(programme_id)
self._sort_formats(formats)
# digitalData may be missing (e.g. http://www.bbc.com/autos/story/20130513-hyundais-rock-star)
digital_data = self._parse_json(
self._search_regex(
r'var\s+digitalData\s*=\s*({.+?});?\n', webpage, 'digital data', default='{}'),
programme_id, fatal=False)
page_info = digital_data.get('page', {}).get('pageInfo', {})
title = page_info.get('pageName') or self._og_search_title(webpage)
description = page_info.get('description') or self._og_search_description(webpage)
timestamp = parse_iso8601(page_info.get('publicationDate')) or timestamp
return {
'id': programme_id,
'title': title,
'description': description,
'timestamp': timestamp,
'formats': formats,
'subtitles': subtitles,
}
playlist_title = self._html_search_regex(
r'<title>(.*?)(?:\s*-\s*BBC [^ ]+)?</title>', webpage, 'playlist title')
playlist_description = self._og_search_description(webpage)
# Multiple video article (e.g. http://www.bbc.com/news/world-europe-32668511)
medias = list(filter(None, map(
lambda s: self._parse_json(s, playlist_id, fatal=False),
re.findall(r"data-media-meta='({[^']+})'", webpage))))
if not medias:
# Single video article (e.g. http://www.bbc.com/news/video_and_audio/international)
media_asset_page = self._parse_json(
self._search_regex(
r'mediaAssetPage\.init\(\s*({.+?}), "/', webpage, 'media asset'),
playlist_id)
medias = []
for video in media_asset_page.get('videos', {}).values():
medias.extend(video.values())
entries = []
for num, media_meta in enumerate(medias, start=1):
formats, subtitles = self._extract_from_media_meta(media_meta, playlist_id)
if not formats:
continue
self._sort_formats(formats)
id = jent.get('id') if programme_id is None else programme_id
if id is None:
id = 'NA'
video_id = media_meta.get('externalId')
if not video_id:
video_id = playlist_id if len(medias) == 1 else '%s-%s' % (playlist_id, num)
title = media_meta.get('caption')
if not title:
title = playlist_title if len(medias) == 1 else '%s - Video %s' % (playlist_title, num)
duration = int_or_none(media_meta.get('durationInSeconds')) or parse_duration(media_meta.get('duration'))
ret.append({
'id': id,
'uploader': 'BBC News',
'upload_date': pubdate,
images = []
for image in media_meta.get('images', {}).values():
images.extend(image.values())
if 'image' in media_meta:
images.append(media_meta['image'])
thumbnails = [{
'url': image.get('href'),
'width': int_or_none(image.get('width')),
'height': int_or_none(image.get('height')),
} for image in images]
entries.append({
'id': video_id,
'title': title,
'description': description,
'thumbnail': thumbnail,
'thumbnails': thumbnails,
'duration': duration,
'timestamp': timestamp,
'formats': formats,
'subtitles': subtitles,
})
if len(ret) > 0:
return self.playlist_result(ret, list_id, list_title)
raise ExtractorError('No video found', expected=True)
return self.playlist_result(entries, playlist_id, playlist_title, playlist_description)

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