code:
from __future__ import unicode_literals

import random
import re
import time

from .common import InfoExtractor
from ..compat import (
    compat_str,
    compat_urlparse,
)
from ..utils import (
    ExtractorError,
    float_or_none,
    int_or_none,
    KNOWN_EXTENSIONS,
    parse_filesize,
    str_or_none,
    try_get,
    unescapeHTML,
    update_url_query,
    unified_strdate,
    unified_timestamp,
    url_or_none,
)

class BandcampIE(InfoExtractor):
    _VALID_URL = r'https?://[^/]+\.bandcamp\.com/track/(?P<title>[^/?#&]+)'
    _TESTS = [{
        'url': 'http://youtube-dl.bandcamp.com/track/youtube-dl-test-song',
        'md5': 'c557841d5e50261777a6585648adf439',
        'info_dict': {
            'id': '1812978515',
            'ext': 'mp3',
            'title': "youtube-dl  \"'/\\\u00e4\u21ad - youtube-dl test song \"'/\\\u00e4\u21ad",
            'duration': 9.8485,
        },
        '_skip': 'There is a limit of 200 free downloads / month for the test song'
    }, {
        # free download
        'url': 'http://benprunty.bandcamp.com/track/lanius-battle',
        'md5': '853e35bf34aa1d6fe2615ae612564b36',
        'info_dict': {
            'id': '2650410135',
            'ext': 'aiff',
            'title': 'Ben Prunty - Lanius (Battle)',
            'thumbnail': r're:^https?://.*\.jpg$',
            'uploader': 'Ben Prunty',
            'timestamp': 1396508491,
            'upload_date': '20140403',
            'release_date': '20140403',
            'duration': 260.877,
            'track': 'Lanius (Battle)',
            'track_number': 1,
            'track_id': '2650410135',
            'artist': 'Ben Prunty',
            'album': 'FTL: Advanced Edition Soundtrack',
        },
    }, {
        # no free download, mp3 128
        'url': 'https://relapsealumni.bandcamp.com/track/hail-to-fire',
        'md5': 'fec12ff55e804bb7f7ebeb77a800c8b7',
        'info_dict': {
            'id': '2584466013',
            'ext': 'mp3',
            'title': 'Mastodon - Hail to Fire',
            'thumbnail': r're:^https?://.*\.jpg$',
            'uploader': 'Mastodon',
            'timestamp': 1322005399,
            'upload_date': '20111122',
            'release_date': '20040207',
            'duration': 120.79,
            'track': 'Hail to Fire',
            'track_number': 5,
            'track_id': '2584466013',
            'artist': 'Mastodon',
            'album': 'Call of the Mastodon',
        },
    }]

    def _real_extract(self, url):
        mobj = re.match(self._VALID_URL, url)
        title = mobj.group('title')
        webpage = self._download_webpage(url, title)
        thumbnail = self._html_search_meta('og:image', webpage, default=None)

        track_id = None
        track = None
        track_number = None
        duration = None

        formats = []
        track_info = self._parse_json(
            self._search_regex(
                r'trackinfo\s*:\s*\[\s*({.+?})\s*\]\s*,\s*?\n',
                webpage, 'track info', default='{}'), title)
        if track_info:
            file_ = track_info.get('file')
            if isinstance(file_, dict):
                for format_id, format_url in file_.items():
                    if not url_or_none(format_url):
                        continue
                    ext, abr_str = format_id.split('-', 1)
                    formats.append({
                        'format_id': format_id,
                        'url': self._proto_relative_url(format_url, 'http:'),
                        'ext': ext,
                        'vcodec': 'none',
                        'acodec': ext,
                        'abr': int_or_none(abr_str),
                    })
            track = track_info.get('title')
            track_id = str_or_none(track_info.get('track_id') or track_info.get('id'))
            track_number = int_or_none(track_info.get('track_num'))
            duration = float_or_none(track_info.get('duration'))

        def extract(key):
            return self._search_regex(
                r'\b%s\s*["\']?\s*:\s*(["\'])(?P<value>(?:(?!\1).)+)\1' % key,
                webpage, key, default=None, group='value')

        artist = extract('artist')
        album = extract('album_title')
        timestamp = unified_timestamp(
            extract('publish_date') or extract('album_publish_date'))
        release_date = unified_strdate(extract('album_release_date'))

        download_link = self._search_regex(
            r'freeDownloadPage\s*:\s*(["\'])(?P<url>(?:(?!\1).)+)\1', webpage,
            'download link', default=None, group='url')
        if download_link:
            track_id = self._search_regex(
                r'(?ms)var TralbumData = .*?[{,]\s*id: (?P<id>\d+),?$',
                webpage, 'track id')

            download_webpage = self._download_webpage(
                download_link, track_id, 'Downloading free downloads page')

            blob = self._parse_json(
                self._search_regex(
                    r'data-blob=(["\'])(?P<blob>{.+?})\1', download_webpage,
                    'blob', group='blob'),
                track_id, transform_source=unescapeHTML)

            info = try_get(
                blob, (lambda x: x['digital_items'][0],
                       lambda x: x['download_items'][0]), dict)
            if info:
                downloads = info.get('downloads')
                if isinstance(downloads, dict):
                    if not track:
                        track = info.get('title')
                    if not artist:
                        artist = info.get('artist')
                    if not thumbnail:
                        thumbnail = info.get('thumb_url')

                    download_formats = {}
                    download_formats_list = blob.get('download_formats')
                    if isinstance(download_formats_list, list):
                        for f in blob['download_formats']:
                            name, ext = f.get('name'), f.get('file_extension')
                            if all(isinstance(x, compat_str) for x in (name, ext)):
                                download_formats[name] = ext.strip('.')

                    for format_id, f in downloads.items():
                        format_url = f.get('url')
                        if not format_url:
                            continue
                        # Stat URL generation algorithm is reverse engineered from
                        # download_*_bundle_*.js
                        stat_url = update_url_query(
                            format_url.replace('/download/', '/statdownload/'), {
                                '.rand': int(time.time() * 1000 * random.random()),
                            })
                        format_id = f.get('encoding_name') or format_id
                        stat = self._download_json(
                            stat_url, track_id, 'Downloading %s JSON' % format_id,
                            transform_source=lambda s: s[s.index('{'):s.rindex('}') + 1],
                            fatal=False)
                        if not stat:
                            continue
                        retry_url = url_or_none(stat.get('retry_url'))
                        if not retry_url:
                            continue
                        formats.append({
                            'url': self._proto_relative_url(retry_url, 'http:'),
                            'ext': download_formats.get(format_id),
                            'format_id': format_id,
                            'format_note': f.get('description'),
                            'filesize': parse_filesize(f.get('size_mb')),
                            'vcodec': 'none',
                        })

        self._sort_formats(formats)

        title = '%s - %s' % (artist, track) if artist else track

        if not duration:
            duration = float_or_none(self._html_search_meta(
                'duration', webpage, default=None))

        return {
            'id': track_id,
            'title': title,
            'thumbnail': thumbnail,
            'uploader': artist,
            'timestamp': timestamp,
            'release_date': release_date,
            'duration': duration,
            'track': track,
            'track_number': track_number,
            'track_id': track_id,
            'artist': artist,
            'album': album,
            'formats': formats,
        }

class BandcampAlbumIE(InfoExtractor):
    IE_NAME = 'Bandcamp:album'
    _VALID_URL = r'https?://(?:(?P<subdomain>[^.]+)\.)?bandcamp\.com(?:/album/(?P<album_id>[^/?#&]+))?'

    _TESTS = [{
        'url': 'http://blazo.bandcamp.com/album/jazz-format-mixtape-vol-1',
        'playlist': [
            {
                'md5': '39bc1eded3476e927c724321ddf116cf',
                'info_dict': {
                    'id': '1353101989',
                    'ext': 'mp3',
                    'title': 'Intro',
                }
            },
            {
                'md5': '1a2c32e2691474643e912cc6cd4bffaa',
                'info_dict': {
                    'id': '38097443',
                    'ext': 'mp3',
                    'title': 'Kero One - Keep It Alive (Blazo remix)',
                }
            },
        ],
        'info_dict': {
            'title': 'Jazz Format Mixtape vol.1',
            'id': 'jazz-format-mixtape-vol-1',
            'uploader_id': 'blazo',
        },
        'params': {
            'playlistend': 2
        },
        'skip': 'Bandcamp imposes download limits.'
    }, {
        'url': 'http://nightbringer.bandcamp.com/album/hierophany-of-the-open-grave',
        'info_dict': {
            'title': 'Hierophany of the Open Grave',
            'uploader_id': 'nightbringer',
            'id': 'hierophany-of-the-open-grave',
        },
        'playlist_mincount': 9,
    }, {
        'url': 'http://dotscale.bandcamp.com',
        'info_dict': {
            'title': 'Loom',
            'id': 'dotscale',
            'uploader_id': 'dotscale',
        },
        'playlist_mincount': 7,
    }, {
        # with escaped quote in title
        'url': 'https://jstrecords.bandcamp.com/album/entropy-ep',
        'info_dict': {
            'title': '"Entropy" EP',
            'uploader_id': 'jstrecords',
            'id': 'entropy-ep',
        },
        'playlist_mincount': 3,
    }, {
        # not all tracks have songs
        'url': 'https://insulters.bandcamp.com/album/we-are-the-plague',
        'info_dict': {
            'id': 'we-are-the-plague',
            'title': 'WE ARE THE PLAGUE',
            'uploader_id': 'insulters',
        },
        'playlist_count': 2,
    }]

    @classmethod
    def suitable(cls, url):
        return (False
                if BandcampWeeklyIE.suitable(url) or BandcampIE.suitable(url)
                else super(BandcampAlbumIE, cls).suitable(url))

    def _real_extract(self, url):
        mobj = re.match(self._VALID_URL, url)
        uploader_id = mobj.group('subdomain')
        album_id = mobj.group('album_id')
        playlist_id = album_id or uploader_id
        webpage = self._download_webpage(url, playlist_id)
        track_elements = re.findall(
            r'(?s)<div[^>]*>(.*?<a[^>]+href="([^"]+?)"[^>]+itemprop="url"[^>]*>.*?)</div>', webpage)
        if not track_elements:
            raise ExtractorError('The page doesn\'t contain any tracks')
        # Only tracks with duration info have songs
        entries = [
            self.url_result(
                compat_urlparse.urljoin(url, t_path),
                ie=BandcampIE.ie_key(),
                video_title=self._search_regex(
                    r'<span\b[^>]+\bitemprop=["\']name["\'][^>]*>([^<]+)',
                    elem_content, 'track title', fatal=False))
            for elem_content, t_path in track_elements
            if self._html_search_meta('duration', elem_content, default=None)]

        title = self._html_search_regex(
            r'album_title\s*:\s*"((?:\\.|[^"\\])+?)"',
            webpage, 'title', fatal=False)
        if title:
            title = title.replace(r'\"', '"')
        return {
            '_type': 'playlist',
            'uploader_id': uploader_id,
            'id': playlist_id,
            'title': title,
            'entries': entries,
        }

class BandcampWeeklyIE(InfoExtractor):
    IE_NAME = 'Bandcamp:weekly'
    _VALID_URL = r'https?://(?:www\.)?bandcamp\.com/?\?(?:.*?&)?show=(?P<id>\d+)'
    _TESTS = [{
        'url': 'https://bandcamp.com/?show=224',
        'md5': 'b00df799c733cf7e0c567ed187dea0fd',
        'info_dict': {
            'id': '224',
            'ext': 'opus',
            'title': 'BC Weekly April 4th 2017 - Magic Moments',
            'description': 'md5:5d48150916e8e02d030623a48512c874',
            'duration': 5829.77,
            'release_date': '20170404',
            'series': 'Bandcamp Weekly',
            'episode': 'Magic Moments',
            'episode_number': 208,
            'episode_id': '224',
        }
    }, {
        'url': 'https://bandcamp.com/?blah/blah@&show=228',
        'only_matching': True
    }]

    def _real_extract(self, url):
        video_id = self._match_id(url)
        webpage = self._download_webpage(url, video_id)

        blob = self._parse_json(
            self._search_regex(
                r'data-blob=(["\'])(?P<blob>{.+?})\1', webpage,
                'blob', group='blob'),
            video_id, transform_source=unescapeHTML)

        show = blob['bcw_show']

        # This is desired because any invalid show id redirects to `bandcamp.com`
        # which happens to expose the latest Bandcamp Weekly episode.
        show_id = int_or_none(show.get('show_id')) or int_or_none(video_id)

        formats = []
        for format_id, format_url in show['audio_stream'].items():
            if not url_or_none(format_url):
                continue
            for known_ext in KNOWN_EXTENSIONS:
                if known_ext in format_id:
                    ext = known_ext
                    break
            else:
                ext = None
            formats.append({
                'format_id': format_id,
                'url': format_url,
                'ext': ext,
                'vcodec': 'none',
            })
        self._sort_formats(formats)

        title = show.get('audio_title') or 'Bandcamp Weekly'
        subtitle = show.get('subtitle')
        if subtitle:
            title += ' - %s' % subtitle

        episode_number = None
        seq = blob.get('bcw_seq')

        if seq and isinstance(seq, list):
            try:
                episode_number = next(
                    int_or_none(e.get('episode_number'))
                    for e in seq
                    if isinstance(e, dict) and int_or_none(e.get('id')) == show_id)
            except StopIteration:
                pass

        return {
            'id': video_id,
            'title': title,
            'description': show.get('desc') or show.get('short_desc'),
            'duration': float_or_none(show.get('audio_duration')),
            'is_live': False,
            'release_date': unified_strdate(show.get('published_date')),
            'series': 'Bandcamp Weekly',
            'episode': show.get('subtitle'),
            'episode_number': episode_number,
            'episode_id': compat_str(video_id),
            'formats': formats
        }


code:
# coding: utf-8
from __future__ import unicode_literals

import itertools
import re

from .common import InfoExtractor
from ..utils import (
    clean_html,
    dict_get,
    ExtractorError,
    float_or_none,
    get_element_by_class,
    int_or_none,
    js_to_json,
    parse_duration,
    parse_iso8601,
    try_get,
    unescapeHTML,
    url_or_none,
    urlencode_postdata,
    urljoin,
)
from ..compat import (
    compat_etree_Element,
    compat_HTTPError,
    compat_urlparse,
)

class BBCCoUkIE(InfoExtractor):
    IE_NAME = 'bbc.co.uk'
    IE_DESC = 'BBC iPlayer'
    _ID_REGEX = r'(?:[pbm][\da-z]{7}|w[\da-z]{7,14})'
    _VALID_URL = r'''(?x)
                    https?://
                        (?:www\.)?bbc\.co\.uk/
                        (?:
                            programmes/(?!articles/)|
                            iplayer(?:/[^/]+)?/(?:episode/|playlist/)|
                            music/(?:clips|audiovideo/popular)[/#]|
                            radio/player/|
                            sounds/play/|
                            events/[^/]+/play/[^/]+/
                        )
                        (?P<id>%s)(?!/(?:episodes|broadcasts|clips))
                    ''' % _ID_REGEX

    _LOGIN_URL = 'https://account.bbc.com/signin'
    _NETRC_MACHINE = 'bbc'

    _MEDIASELECTOR_URLS = [
        # Provides HQ HLS streams with even better quality that pc mediaset but fails
        # with geolocation in some cases when it's even not geo restricted at all (e.g.
        # http://www.bbc.co.uk/programmes/b06bp7lf). Also may fail with selectionunavailable.
        'http://open.live.bbc.co.uk/mediaselector/5/select/version/2.0/mediaset/iptv-all/vpid/%s',
        'http://open.live.bbc.co.uk/mediaselector/5/select/version/2.0/mediaset/pc/vpid/%s',
    ]

    _MEDIASELECTION_NS = 'http://bbc.co.uk/2008/mp/mediaselection'
    _EMP_PLAYLIST_NS = 'http://bbc.co.uk/2008/emp/playlist'

    _NAMESPACES = (
        _MEDIASELECTION_NS,
        _EMP_PLAYLIST_NS,
    )

    _TESTS = [
        {
            'url': 'http://www.bbc.co.uk/programmes/b039g8p7',
            'info_dict': {
                'id': 'b039d07m',
                'ext': 'flv',
                'title': 'Kaleidoscope, Leonard Cohen',
                'description': 'The Canadian poet and songwriter reflects on his musical career.',
            },
            'params': {
                # rtmp download
                'skip_download': True,
            }
        },
        {
            'url': 'http://www.bbc.co.uk/iplayer/episode/b00yng5w/The_Man_in_Black_Series_3_The_Printed_Name/',
            'info_dict': {
                'id': 'b00yng1d',
                'ext': 'flv',
                'title': 'The Man in Black: Series 3: The Printed Name',
                'description': "Mark Gatiss introduces Nicholas Pierpan's chilling tale of a writer's devilish pact with a mysterious man. Stars Ewan Bailey.",
                'duration': 1800,
            },
            'params': {
                # rtmp download
                'skip_download': True,
            },
            'skip': 'Episode is no longer available on BBC iPlayer Radio',
        },
        {
            'url': 'http://www.bbc.co.uk/iplayer/episode/b03vhd1f/The_Voice_UK_Series_3_Blind_Auditions_5/',
            'info_dict': {
                'id': 'b00yng1d',
                'ext': 'flv',
                'title': 'The Voice UK: Series 3: Blind Auditions 5',
                'description': 'Emma Willis and Marvin Humes present the fifth set of blind auditions in the singing competition, as the coaches continue to build their teams based on voice alone.',
                'duration': 5100,
            },
            'params': {
                # rtmp download
                'skip_download': True,
            },
            'skip': 'Currently BBC iPlayer TV programmes are available to play in the UK only',
        },
        {
            'url': 'http://www.bbc.co.uk/iplayer/episode/p026c7jt/tomorrows-worlds-the-unearthly-history-of-science-fiction-2-invasion',
            'info_dict': {
                'id': 'b03k3pb7',
                'ext': 'flv',
                'title': "Tomorrow's Worlds: The Unearthly History of Science Fiction",
                'description': '2. Invasion',
                'duration': 3600,
            },
            'params': {
                # rtmp download
                'skip_download': True,
            },
            'skip': 'Currently BBC iPlayer TV programmes are available to play in the UK only',
        }, {
            'url': 'http://www.bbc.co.uk/programmes/b04v20dw',
            'info_dict': {
                'id': 'b04v209v',
                'ext': 'flv',
                'title': 'Pete Tong, The Essential New Tune Special',
                'description': "Pete has a very special mix - all of 2014's Essential New Tunes!",
                'duration': 10800,
            },
            'params': {
                # rtmp download
                'skip_download': True,
            },
            'skip': 'Episode is no longer available on BBC iPlayer Radio',
        }, {
            'url': 'http://www.bbc.co.uk/music/clips/p022h44b',
            'note': 'Audio',
            'info_dict': {
                'id': 'p022h44j',
                'ext': 'flv',
                'title': 'BBC Proms Music Guides, Rachmaninov: Symphonic Dances',
                'description': "In this Proms Music Guide, Andrew McGregor looks at Rachmaninov's Symphonic Dances.",
                'duration': 227,
            },
            'params': {
                # rtmp download
                'skip_download': True,
            }
        }, {
            'url': 'http://www.bbc.co.uk/music/clips/p025c0zz',
            'note': 'Video',
            'info_dict': {
                'id': 'p025c103',
                'ext': 'flv',
                'title': 'Reading and Leeds Festival, 2014, Rae Morris - Closer (Live on BBC Three)',
                'description': 'Rae Morris performs Closer for BBC Three at Reading 2014',
                'duration': 226,
            },
            'params': {
                # rtmp download
                'skip_download': True,
            }
        }, {
            'url': 'http://www.bbc.co.uk/iplayer/episode/b054fn09/ad/natural-world-20152016-2-super-powered-owls',
            'info_dict': {
                'id': 'p02n76xf',
                'ext': 'flv',
                'title': 'Natural World, 2015-2016: 2. Super Powered Owls',
                'description': 'md5:e4db5c937d0e95a7c6b5e654d429183d',
                'duration': 3540,
            },
            'params': {
                # rtmp download
                'skip_download': True,
            },
            'skip': 'geolocation',
        }, {
            'url': 'http://www.bbc.co.uk/iplayer/episode/b05zmgwn/royal-academy-summer-exhibition',
            'info_dict': {
                'id': 'b05zmgw1',
                'ext': 'flv',
                'description': 'Kirsty Wark and Morgan Quaintance visit the Royal Academy as it prepares for its annual artistic extravaganza, meeting people who have come together to make the show unique.',
                'title': 'Royal Academy Summer Exhibition',
                'duration': 3540,
            },
            'params': {
                # rtmp download
                'skip_download': True,
            },
            'skip': 'geolocation',
        }, {
            # iptv-all mediaset fails with geolocation however there is no geo restriction
            # for this programme at all
            'url': 'http://www.bbc.co.uk/programmes/b06rkn85',
            'info_dict': {
                'id': 'b06rkms3',
                'ext': 'flv',
                'title': "Best of the Mini-Mixes 2015: Part 3, Annie Mac's Friday Night - BBC Radio 1",
                'description': "Annie has part three in the Best of the Mini-Mixes 2015, plus the year's Most Played!",
            },
            'params': {
                # rtmp download
                'skip_download': True,
            },
            'skip': 'Now it\'s really geo-restricted',
        }, {
            # compact player (https://github.com/ytdl-org/youtube-dl/issues/8147)
            'url': 'http://www.bbc.co.uk/programmes/p028bfkf/player',
            'info_dict': {
                'id': 'p028bfkj',
                'ext': 'flv',
                'title': 'Extract from BBC documentary Look Stranger - Giant Leeks and Magic Brews',
                'description': 'Extract from BBC documentary Look Stranger - Giant Leeks and Magic Brews',
            },
            'params': {
                # rtmp download
                'skip_download': True,
            },
        }, {
            'url': 'https://www.bbc.co.uk/sounds/play/m0007jzb',
            'note': 'Audio',
            'info_dict': {
                'id': 'm0007jz9',
                'ext': 'mp4',
                'title': 'BBC Proms, 2019, Prom 34: West–Eastern Divan Orchestra',
                'description': "Live BBC Proms. West–Eastern Divan Orchestra with Daniel Barenboim and Martha Argerich.",
                'duration': 9840,
            },
            'params': {
                # rtmp download
                'skip_download': True,
            }
        }, {
            'url': 'http://www.bbc.co.uk/iplayer/playlist/p01dvks4',
            'only_matching': True,
        }, {
            'url': 'http://www.bbc.co.uk/music/clips#p02frcc3',
            'only_matching': True,
        }, {
            'url': 'http://www.bbc.co.uk/iplayer/cbeebies/episode/b0480276/bing-14-atchoo',
            'only_matching': True,
        }, {
            'url': 'http://www.bbc.co.uk/radio/player/p03cchwf',
            'only_matching': True,
        }, {
            'url': 'https://www.bbc.co.uk/music/audiovideo/popular#p055bc55',
            'only_matching': True,
        }, {
            'url': 'http://www.bbc.co.uk/programmes/w3csv1y9',
            'only_matching': True,
        }, {
            'url': 'https://www.bbc.co.uk/programmes/m00005xn',
            'only_matching': True,
        }, {
            'url': 'https://www.bbc.co.uk/programmes/w172w4dww1jqt5s',
            'only_matching': True,
        }]

    _USP_RE = r'/([^/]+?)\.ism(?:\.hlsv2\.ism)?/[^/]+\.m3u8'

    def _login(self):
        username, password = self._get_login_info()
        if username is None:
            return

        login_page = self._download_webpage(
            self._LOGIN_URL, None, 'Downloading signin page')

        login_form = self._hidden_inputs(login_page)

        login_form.update({
            'username': username,
            'password': password,
        })

        post_url = urljoin(self._LOGIN_URL, self._search_regex(
            r'<form[^>]+action=(["\'])(?P<url>.+?)\1', login_page,
            'post url', default=self._LOGIN_URL, group='url'))

        response, urlh = self._download_webpage_handle(
            post_url, None, 'Logging in', data=urlencode_postdata(login_form),
            headers={'Referer': self._LOGIN_URL})

        if self._LOGIN_URL in urlh.geturl():
            error = clean_html(get_element_by_class('form-message', response))
            if error:
                raise ExtractorError(
                    'Unable to login: %s' % error, expected=True)
            raise ExtractorError('Unable to log in')

    def _real_initialize(self):
        self._login()

    class MediaSelectionError(Exception):
        def __init__(self, id):
            self.id = id

    def _extract_asx_playlist(self, connection, programme_id):
        asx = self._download_xml(connection.get('href'), programme_id, 'Downloading ASX playlist')
        return [ref.get('href') for ref in asx.findall('./Entry/ref')]

    def _extract_items(self, playlist):
        return playlist.findall('./{%s}item' % self._EMP_PLAYLIST_NS)

    def _findall_ns(self, element, xpath):
        elements = []
        for ns in self._NAMESPACES:
            elements.extend(element.findall(xpath % ns))
        return elements

    def _extract_medias(self, media_selection):
        error = media_selection.find('./{%s}error' % self._MEDIASELECTION_NS)
        if error is None:
            media_selection.find('./{%s}error' % self._EMP_PLAYLIST_NS)
        if error is not None:
            raise BBCCoUkIE.MediaSelectionError(error.get('id'))
        return self._findall_ns(media_selection, './{%s}media')

    def _extract_connections(self, media):
        return self._findall_ns(media, './{%s}connection')

    def _get_subtitles(self, media, programme_id):
        subtitles = {}
        for connection in self._extract_connections(media):
            cc_url = url_or_none(connection.get('href'))
            if not cc_url:
                continue
            captions = self._download_xml(
                cc_url, programme_id, 'Downloading captions', fatal=False)
            if not isinstance(captions, compat_etree_Element):
                continue
            lang = captions.get('{http://www.w3.org/XML/1998/namespace}lang', 'en')
            subtitles[lang] = [
                {
                    'url': connection.get('href'),
                    'ext': 'ttml',
                },
            ]
        return subtitles

    def _raise_extractor_error(self, media_selection_error):
        raise ExtractorError(
            '%s returned error: %s' % (self.IE_NAME, media_selection_error.id),
            expected=True)

    def _download_media_selector(self, programme_id):
        last_exception = None
        for mediaselector_url in self._MEDIASELECTOR_URLS:
            try:
                return self._download_media_selector_url(
                    mediaselector_url % programme_id, programme_id)
            except BBCCoUkIE.MediaSelectionError as e:
                if e.id in ('notukerror', 'geolocation', 'selectionunavailable'):
                    last_exception = e
                    continue
                self._raise_extractor_error(e)
        self._raise_extractor_error(last_exception)

    def _download_media_selector_url(self, url, programme_id=None):
        media_selection = self._download_xml(
            url, programme_id, 'Downloading media selection XML',
            expected_status=(403, 404))
        return self._process_media_selector(media_selection, programme_id)

    def _process_media_selector(self, media_selection, programme_id):
        formats = []
        subtitles = None
        urls = []

        for media in self._extract_medias(media_selection):
            kind = media.get('kind')
            if kind in ('video', 'audio'):
                bitrate = int_or_none(media.get('bitrate'))
                encoding = media.get('encoding')
                service = media.get('service')
                width = int_or_none(media.get('width'))
                height = int_or_none(media.get('height'))
                file_size = int_or_none(media.get('media_file_size'))
                for connection in self._extract_connections(media):
                    href = connection.get('href')
                    if href in urls:
                        continue
                    if href:
                        urls.append(href)
                    conn_kind = connection.get('kind')
                    protocol = connection.get('protocol')
                    supplier = connection.get('supplier')
                    transfer_format = connection.get('transferFormat')
                    format_id = supplier or conn_kind or protocol
                    if service:
                        format_id = '%s_%s' % (service, format_id)
                    # ASX playlist
                    if supplier == 'asx':
                        for i, ref in enumerate(self._extract_asx_playlist(connection, programme_id)):
                            formats.append({
                                'url': ref,
                                'format_id': 'ref%s_%s' % (i, format_id),
                            })
                    elif transfer_format == 'dash':
                        formats.extend(self._extract_mpd_formats(
                            href, programme_id, mpd_id=format_id, fatal=False))
                    elif transfer_format == 'hls':
                        formats.extend(self._extract_m3u8_formats(
                            href, programme_id, ext='mp4', entry_protocol='m3u8_native',
                            m3u8_id=format_id, fatal=False))
                        if re.search(self._USP_RE, href):
                            usp_formats = self._extract_m3u8_formats(
                                re.sub(self._USP_RE, r'/\1.ism/\1.m3u8', href),
                                programme_id, ext='mp4', entry_protocol='m3u8_native',
                                m3u8_id=format_id, fatal=False)
                            for f in usp_formats:
                                if f.get('height') and f['height'] > 720:
                                    continue
                                formats.append(f)
                    elif transfer_format == 'hds':
                        formats.extend(self._extract_f4m_formats(
                            href, programme_id, f4m_id=format_id, fatal=False))
                    else:
                        if not service and not supplier and bitrate:
                            format_id += '-%d' % bitrate
                        fmt = {
                            'format_id': format_id,
                            'filesize': file_size,
                        }
                        if kind == 'video':
                            fmt.update({
                                'width': width,
                                'height': height,
                                'tbr': bitrate,
                                'vcodec': encoding,
                            })
                        else:
                            fmt.update({
                                'abr': bitrate,
                                'acodec': encoding,
                                'vcodec': 'none',
                            })
                        if protocol in ('http', 'https'):
                            # Direct link
                            fmt.update({
                                'url': href,
                            })
                        elif protocol == 'rtmp':
                            application = connection.get('application', 'ondemand')
                            auth_string = connection.get('authString')
                            identifier = connection.get('identifier')
                            server = connection.get('server')
                            fmt.update({
                                'url': '%s://%s/%s?%s' % (protocol, server, application, auth_string),
                                'play_path': identifier,
                                'app': '%s?%s' % (application, auth_string),
                                'page_url': 'http://www.bbc.co.uk',
                                'player_url': 'http://www.bbc.co.uk/emp/releases/iplayer/revisions/617463_618125_4/617463_618125_4_emp.swf',
                                'rtmp_live': False,
                                'ext': 'flv',
                            })
                        else:
                            continue
                        formats.append(fmt)
            elif kind == 'captions':
                subtitles = self.extract_subtitles(media, programme_id)
        return formats, subtitles

    def _download_playlist(self, playlist_id):
        try:
            playlist = self._download_json(
                'http://www.bbc.co.uk/programmes/%s/playlist.json' % playlist_id,
                playlist_id, 'Downloading playlist JSON')

            version = playlist.get('defaultAvailableVersion')
            if version:
                smp_config = version['smpConfig']
                title = smp_config['title']
                description = smp_config['summary']
                for item in smp_config['items']:
                    kind = item['kind']
                    if kind not in ('programme', 'radioProgramme'):
                        continue
                    programme_id = item.get('vpid')
                    duration = int_or_none(item.get('duration'))
                    formats, subtitles = self._download_media_selector(programme_id)
                return programme_id, title, description, duration, formats, subtitles
        except ExtractorError as ee:
            if not (isinstance(ee.cause, compat_HTTPError) and ee.cause.code == 404):
                raise

        # fallback to legacy playlist
        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('./{%s}noItems' % self._EMP_PLAYLIST_NS)
        if no_items is not None:
            reason = no_items.get('reason')
            if reason == 'preAvailability':
                msg = 'Episode %s is not yet available' % playlist_id
            elif reason == 'postAvailability':
                msg = 'Episode %s is no longer available' % playlist_id
            elif reason == 'noMedia':
                msg = 'Episode %s is not currently available' % playlist_id
            else:
                msg = 'Episode %s is not available: %s' % (playlist_id, reason)
            raise ExtractorError(msg, expected=True)

        for item in self._extract_items(playlist):
            kind = item.get('kind')
            if kind not in ('programme', 'radioProgramme'):
                continue
            title = playlist.find('./{%s}title' % self._EMP_PLAYLIST_NS).text
            description_el = playlist.find('./{%s}summary' % self._EMP_PLAYLIST_NS)
            description = description_el.text if description_el is not None else None

            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('./{%s}mediator' % self._EMP_PLAYLIST_NS)
                if mediator is not None:
                    return get_from_attributes(mediator)

            programme_id = get_programme_id(item)
            duration = int_or_none(item.get('duration'))

            if programme_id:
                formats, subtitles = self._download_media_selector(programme_id)
            else:
                formats, subtitles = self._process_media_selector(item, playlist_id)
                programme_id = playlist_id

        return programme_id, title, description, duration, formats, subtitles

    def _real_extract(self, url):
        group_id = self._match_id(url)

        webpage = self._download_webpage(url, group_id, 'Downloading video page')

        error = self._search_regex(
            r'<div\b[^>]+\bclass=["\']smp__message delta["\'][^>]*>([^<]+)<',
            webpage, 'error', default=None)
        if error:
            raise ExtractorError(error, expected=True)

        programme_id = None
        duration = None

        tviplayer = self._search_regex(
            r'mediator\.bind\(({.+?})\s*,\s*document\.getElementById',
            webpage, 'player', default=None)

        if tviplayer:
            player = self._parse_json(tviplayer, group_id).get('player', {})
            duration = int_or_none(player.get('duration'))
            programme_id = player.get('vpid')

        if not programme_id:
            programme_id = self._search_regex(
                r'"vpid"\s*:\s*"(%s)"' % self._ID_REGEX, webpage, 'vpid', fatal=False, default=None)

        if programme_id:
            formats, subtitles = self._download_media_selector(programme_id)
            title = self._og_search_title(webpage, default=None) or self._html_search_regex(
                (r'<h2[^>]+id="parent-title"[^>]*>(.+?)</h2>',
                 r'<div[^>]+class="info"[^>]*>\s*<h1>(.+?)</h1>'), webpage, 'title')
            description = self._search_regex(
                (r'<p class="[^"]*medium-description[^"]*">([^<]+)</p>',
                 r'<div[^>]+class="info_+synopsis"[^>]*>([^<]+)</div>'),
                webpage, 'description', default=None)
            if not description:
                description = self._html_search_meta('description', webpage)
        else:
            programme_id, title, description, duration, formats, subtitles = self._download_playlist(group_id)

        self._sort_formats(formats)

        return {
            'id': programme_id,
            'title': title,
            'description': description,
            'thumbnail': self._og_search_thumbnail(webpage, default=None),
            'duration': duration,
            'formats': formats,
            'subtitles': subtitles,
        }

class BBCIE(BBCCoUkIE):
    IE_NAME = 'bbc'
    IE_DESC = 'BBC'
    _VALID_URL = r'https?://(?:www\.)?bbc\.(?:com|co\.uk)/(?:[^/]+/)+(?P<id>[^/#?]+)'

    _MEDIASELECTOR_URLS = [
        # Provides HQ HLS streams but fails with geolocation in some cases when it's
        # even not geo restricted at all
        'http://open.live.bbc.co.uk/mediaselector/5/select/version/2.0/mediaset/iptv-all/vpid/%s',
        # Provides more formats, namely direct mp4 links, but fails on some videos with
        # notukerror for non UK (?) users (e.g.
        # http://www.bbc.com/travel/story/20150625-sri-lankas-spicy-secret)
        'http://open.live.bbc.co.uk/mediaselector/4/mtis/stream/%s',
        # Provides fewer formats, but works everywhere for everybody (hopefully)
        '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-playable containing vpids
        'url': 'http://www.bbc.com/news/world-europe-32668511',
        'info_dict': {
            'id': 'world-europe-32668511',
            'title': 'Russia stages massive WW2 parade',
            'description': 'md5:00ff61976f6081841f759a08bf78cc9c',
        },
        'playlist_count': 2,
    }, {
        # article with multiple videos embedded with data-playable (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',
    }, {
        # article with multiple videos embedded with `new SMP()`
        # broken
        'url': 'http://www.bbc.co.uk/blogs/adamcurtis/entries/3662a707-0af9-3149-963f-47bea720b460',
        'info_dict': {
            'id': '3662a707-0af9-3149-963f-47bea720b460',
            'title': 'BUGGER',
        },
        'playlist_count': 18,
    }, {
        # single video embedded with data-playable containing vpid
        'url': 'http://www.bbc.com/news/world-europe-32041533',
        'info_dict': {
            'id': 'p02mprgb',
            'ext': 'mp4',
            'title': 'Aerial footage showed the site of the crash in the Alps - courtesy BFM TV',
            'description': 'md5:2868290467291b37feda7863f7a83f54',
            'duration': 47,
            'timestamp': 1427219242,
            'upload_date': '20150324',
        },
        'params': {
            # rtmp download
            'skip_download': True,
        }
    }, {
        # article with single video embedded with data-playable containing XML playlist
        # with direct video links as progressiveDownloadUrl (for now these are extracted)
        # and playlist with f4m and m3u8 as streamingUrl
        'url': 'http://www.bbc.com/turkce/haberler/2015/06/150615_telabyad_kentin_cogu',
        'info_dict': {
            'id': '150615_telabyad_kentin_cogu',
            'ext': 'mp4',
            'title': "YPG: Tel Abyad'ın tamamı kontrolümüzde",
            'description': 'md5:33a4805a855c9baf7115fcbde57e7025',
            'timestamp': 1434397334,
            'upload_date': '20150615',
        },
        'params': {
            'skip_download': True,
        }
    }, {
        # single video embedded with data-playable containing XML playlists (regional section)
        'url': 'http://www.bbc.com/mundo/video_fotos/2015/06/150619_video_honduras_militares_hospitales_corrupcion_aw',
        'info_dict': {
            'id': '150619_video_honduras_militares_hospitales_corrupcion_aw',
            'ext': 'mp4',
            'title': 'Honduras militariza sus hospitales por nuevo escándalo de corrupción',
            'description': 'md5:1525f17448c4ee262b64b8f0c9ce66c8',
            'timestamp': 1434713142,
            'upload_date': '20150619',
        },
        'params': {
            'skip_download': True,
        }
    }, {
        # single video from video playlist embedded with vxp-playlist-data JSON
        'url': 'http://www.bbc.com/news/video_and_audio/must_see/33376376',
        'info_dict': {
            'id': 'p02w6qjc',
            'ext': 'mp4',
            'title': '''Judge Mindy Glazer: "I'm sorry to see you here... I always wondered what happened to you"''',
            'duration': 56,
            'description': '''Judge Mindy Glazer: "I'm sorry to see you here... I always wondered what happened to you"''',
        },
        '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': 'mp4',
            'title': 'Hyundai Santa Fe Sport: Rock star',
            'description': 'md5:b042a26142c4154a6e472933cf20793d',
            'timestamp': 1415867444,
            'upload_date': '20141113',
        },
        'params': {
            # rtmp download
            'skip_download': True,
        }
    }, {
        # single video embedded with Morph
        'url': 'http://www.bbc.co.uk/sport/live/olympics/36895975',
        'info_dict': {
            'id': 'p041vhd0',
            'ext': 'mp4',
            'title': "Nigeria v Japan - Men's First Round",
            'description': 'Live coverage of the first round from Group B at the Amazonia Arena.',
            'duration': 7980,
            'uploader': 'BBC Sport',
            'uploader_id': 'bbc_sport',
        },
        'params': {
            # m3u8 download
            'skip_download': True,
        },
        'skip': 'Georestricted to UK',
    }, {
        # single video with playlist.sxml URL in playlist param
        'url': 'http://www.bbc.com/sport/0/football/33653409',
        'info_dict': {
            'id': 'p02xycnp',
            'ext': 'mp4',
            'title': 'Transfers: Cristiano Ronaldo to Man Utd, Arsenal to spend?',
            'description': 'BBC Sport\'s David Ornstein has the latest transfer gossip, including rumours of a Manchester United return for Cristiano Ronaldo.',
            'duration': 140,
        },
        'params': {
            # rtmp download
            'skip_download': True,
        }
    }, {
        # article with multiple videos embedded with playlist.sxml in playlist param
        'url': 'http://www.bbc.com/sport/0/football/34475836',
        'info_dict': {
            'id': '34475836',
            'title': 'Jurgen Klopp: Furious football from a witty and winning coach',
            'description': 'Fast-paced football, wit, wisdom and a ready smile - why Liverpool fans should come to love new boss Jurgen Klopp.',
        },
        'playlist_count': 3,
    }, {
        # school report article with single video
        'url': 'http://www.bbc.co.uk/schoolreport/35744779',
        'info_dict': {
            'id': '35744779',
            'title': 'School which breaks down barriers in Jerusalem',
        },
        'playlist_count': 1,
    }, {
        # 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,
    }, {
        # single video article embedded with data-media-vpid
        'url': 'http://www.bbc.co.uk/sport/rowing/35908187',
        'only_matching': True,
    }, {
        'url': 'https://www.bbc.co.uk/bbcthree/clip/73d0bbd0-abc3-4cea-b3c0-cdae21905eb1',
        'info_dict': {
            'id': 'p06556y7',
            'ext': 'mp4',
            'title': 'Transfers: Cristiano Ronaldo to Man Utd, Arsenal to spend?',
            'description': 'md5:4b7dfd063d5a789a1512e99662be3ddd',
        },
        'params': {
            'skip_download': True,
        }
    }, {
        # window.__PRELOADED_STATE__
        'url': 'https://www.bbc.co.uk/radio/play/b0b9z4yl',
        'info_dict': {
            'id': 'b0b9z4vz',
            'ext': 'mp4',
            'title': 'Prom 6: An American in Paris and Turangalila',
            'description': 'md5:51cf7d6f5c8553f197e58203bc78dff8',
            'uploader': 'Radio 3',
            'uploader_id': 'bbc_radio_three',
        },
    }, {
        'url': 'http://www.bbc.co.uk/learningenglish/chinese/features/lingohack/ep-181227',
        'info_dict': {
            'id': 'p06w9tws',
            'ext': 'mp4',
            'title': 'md5:2fabf12a726603193a2879a055f72514',
            'description': 'Learn English words and phrases from this story',
        },
        'add_ie': [BBCCoUkIE.ie_key()],
    }]

    @classmethod
    def suitable(cls, url):
        EXCLUDE_IE = (BBCCoUkIE, BBCCoUkArticleIE, BBCCoUkIPlayerPlaylistIE, BBCCoUkPlaylistIE)
        return (False if any(ie.suitable(url) for ie in EXCLUDE_IE)
                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 _extract_from_playlist_sxml(self, url, playlist_id, timestamp):
        programme_id, title, description, duration, formats, subtitles = \
            self._process_legacy_playlist_url(url, playlist_id)
        self._sort_formats(formats)
        return {
            'id': programme_id,
            'title': title,
            'description': description,
            'duration': duration,
            'timestamp': timestamp,
            'formats': formats,
            'subtitles': subtitles,
        }

    def _real_extract(self, url):
        playlist_id = self._match_id(url)

        webpage = self._download_webpage(url, playlist_id)

        json_ld_info = self._search_json_ld(webpage, playlist_id, default={})
        timestamp = json_ld_info.get('timestamp')

        playlist_title = json_ld_info.get('title')
        if not playlist_title:
            playlist_title = self._og_search_title(
                webpage, default=None) or self._html_search_regex(
                r'<title>(.+?)</title>', webpage, 'playlist title', default=None)
            if playlist_title:
                playlist_title = re.sub(r'(.+)\s*-\s*BBC.*?$', r'\1', playlist_title).strip()

        playlist_description = json_ld_info.get(
            'description') or self._og_search_description(webpage, default=None)

        if not timestamp:
            timestamp = parse_iso8601(self._search_regex(
                [r'<meta[^>]+property="article:published_time"[^>]+content="([^"]+)"',
                 r'itemprop="datePublished"[^>]+datetime="([^"]+)"',
                 r'"datePublished":\s*"([^"]+)'],
                webpage, 'date', default=None))

        entries = []

        # article with multiple videos embedded with playlist.sxml (e.g.
        # http://www.bbc.com/sport/0/football/34475836)
        playlists = re.findall(r'<param[^>]+name="playlist"[^>]+value="([^"]+)"', webpage)
        playlists.extend(re.findall(r'data-media-id="([^"]+/playlist\.sxml)"', webpage))
        if playlists:
            entries = [
                self._extract_from_playlist_sxml(playlist_url, playlist_id, timestamp)
                for playlist_url in playlists]

        # news article with multiple videos embedded with data-playable
        data_playables = re.findall(r'data-playable=(["\'])({.+?})\1', webpage)
        if data_playables:
            for _, data_playable_json in data_playables:
                data_playable = self._parse_json(
                    unescapeHTML(data_playable_json), playlist_id, fatal=False)
                if not data_playable:
                    continue
                settings = data_playable.get('settings', {})
                if settings:
                    # data-playable with video vpid in settings.playlistObject.items (e.g.
                    # http://www.bbc.com/news/world-us-canada-34473351)
                    playlist_object = settings.get('playlistObject', {})
                    if playlist_object:
                        items = playlist_object.get('items')
                        if items and isinstance(items, list):
                            title = playlist_object['title']
                            description = playlist_object.get('summary')
                            duration = int_or_none(items[0].get('duration'))
                            programme_id = items[0].get('vpid')
                            formats, subtitles = self._download_media_selector(programme_id)
                            self._sort_formats(formats)
                            entries.append({
                                'id': programme_id,
                                'title': title,
                                'description': description,
                                'timestamp': timestamp,
                                'duration': duration,
                                'formats': formats,
                                'subtitles': subtitles,
                            })
                    else:
                        # data-playable without vpid but with a playlist.sxml URLs
                        # in otherSettings.playlist (e.g.
                        # http://www.bbc.com/turkce/multimedya/2015/10/151010_vid_ankara_patlama_ani)
                        playlist = data_playable.get('otherSettings', {}).get('playlist', {})
                        if playlist:
                            entry = None
                            for key in ('streaming', 'progressiveDownload'):
                                playlist_url = playlist.get('%sUrl' % key)
                                if not playlist_url:
                                    continue
                                try:
                                    info = self._extract_from_playlist_sxml(
                                        playlist_url, playlist_id, timestamp)
                                    if not entry:
                                        entry = info
                                    else:
                                        entry['title'] = info['title']
                                        entry['formats'].extend(info['formats'])
                                except Exception as e:
                                    # Some playlist URL may fail with 500, at the same time
                                    # the other one may work fine (e.g.
                                    # http://www.bbc.com/turkce/haberler/2015/06/150615_telabyad_kentin_cogu)
                                    if isinstance(e.cause, compat_HTTPError) and e.cause.code == 500:
                                        continue
                                    raise
                            if entry:
                                self._sort_formats(entry['formats'])
                                entries.append(entry)

        if entries:
            return self.playlist_result(entries, playlist_id, playlist_title, playlist_description)

        # http://www.bbc.co.uk/learningenglish/chinese/features/lingohack/ep-181227
        group_id = self._search_regex(
            r'<div[^>]+\bclass=["\']video["\'][^>]+\bdata-pid=["\'](%s)' % self._ID_REGEX,
            webpage, 'group id', default=None)
        if playlist_id:
            return self.url_result(
                'https://www.bbc.co.uk/programmes/%s' % group_id,
                ie=BBCCoUkIE.ie_key())

        # 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|media)-vpid="(%s)"' % self._ID_REGEX,
             r'<param[^>]+name="externalIdentifier"[^>]+value="(%s)"' % self._ID_REGEX,
             r'videoId\s*:\s*["\'](%s)["\']' % self._ID_REGEX],
            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,
            }

        # Morph based embed (e.g. http://www.bbc.co.uk/sport/live/olympics/36895975)
        # There are several setPayload calls may be present but the video
        # seems to be always related to the first one
        morph_payload = self._parse_json(
            self._search_regex(
                r'Morph\.setPayload\([^,]+,\s*({.+?})\);',
                webpage, 'morph payload', default='{}'),
            playlist_id, fatal=False)
        if morph_payload:
            components = try_get(morph_payload, lambda x: x['body']['components'], list) or []
            for component in components:
                if not isinstance(component, dict):
                    continue
                lead_media = try_get(component, lambda x: x['props']['leadMedia'], dict)
                if not lead_media:
                    continue
                identifiers = lead_media.get('identifiers')
                if not identifiers or not isinstance(identifiers, dict):
                    continue
                programme_id = identifiers.get('vpid') or identifiers.get('playablePid')
                if not programme_id:
                    continue
                title = lead_media.get('title') or self._og_search_title(webpage)
                formats, subtitles = self._download_media_selector(programme_id)
                self._sort_formats(formats)
                description = lead_media.get('summary')
                uploader = lead_media.get('masterBrand')
                uploader_id = lead_media.get('mid')
                duration = None
                duration_d = lead_media.get('duration')
                if isinstance(duration_d, dict):
                    duration = parse_duration(dict_get(
                        duration_d, ('rawDuration', 'formattedDuration', 'spokenDuration')))
                return {
                    'id': programme_id,
                    'title': title,
                    'description': description,
                    'duration': duration,
                    'uploader': uploader,
                    'uploader_id': uploader_id,
                    'formats': formats,
                    'subtitles': subtitles,
                }

        preload_state = self._parse_json(self._search_regex(
            r'window\.__PRELOADED_STATE__\s*=\s*({.+?});', webpage,
            'preload state', default='{}'), playlist_id, fatal=False)
        if preload_state:
            current_programme = preload_state.get('programmes', {}).get('current') or {}
            programme_id = current_programme.get('id')
            if current_programme and programme_id and current_programme.get('type') == 'playable_item':
                title = current_programme.get('titles', {}).get('tertiary') or playlist_title
                formats, subtitles = self._download_media_selector(programme_id)
                self._sort_formats(formats)
                synopses = current_programme.get('synopses') or {}
                network = current_programme.get('network') or {}
                duration = int_or_none(
                    current_programme.get('duration', {}).get('value'))
                thumbnail = None
                image_url = current_programme.get('image_url')
                if image_url:
                    thumbnail = image_url.replace('{recipe}', '1920x1920')
                return {
                    'id': programme_id,
                    'title': title,
                    'description': dict_get(synopses, ('long', 'medium', 'short')),
                    'thumbnail': thumbnail,
                    'duration': duration,
                    'uploader': network.get('short_title'),
                    'uploader_id': network.get('id'),
                    'formats': formats,
                    'subtitles': subtitles,
                }

        bbc3_config = self._parse_json(
            self._search_regex(
                r'(?s)bbcthreeConfig\s*=\s*({.+?})\s*;\s*<', webpage,
                'bbcthree config', default='{}'),
            playlist_id, transform_source=js_to_json, fatal=False)
        if bbc3_config:
            bbc3_playlist = try_get(
                bbc3_config, lambda x: x['payload']['content']['bbcMedia']['playlist'],
                dict)
            if bbc3_playlist:
                playlist_title = bbc3_playlist.get('title') or playlist_title
                thumbnail = bbc3_playlist.get('holdingImageURL')
                entries = []
                for bbc3_item in bbc3_playlist['items']:
                    programme_id = bbc3_item.get('versionID')
                    if not programme_id:
                        continue
                    formats, subtitles = self._download_media_selector(programme_id)
                    self._sort_formats(formats)
                    entries.append({
                        'id': programme_id,
                        'title': playlist_title,
                        'thumbnail': thumbnail,
                        'timestamp': timestamp,
                        'formats': formats,
                        'subtitles': subtitles,
                    })
                return self.playlist_result(
                    entries, playlist_id, playlist_title, playlist_description)

        def extract_all(pattern):
            return list(filter(None, map(
                lambda s: self._parse_json(s, playlist_id, fatal=False),
                re.findall(pattern, webpage))))

        # Multiple video article (e.g.
        # http://www.bbc.co.uk/blogs/adamcurtis/entries/3662a707-0af9-3149-963f-47bea720b460)
        EMBED_URL = r'https?://(?:www\.)?bbc\.co\.uk/(?:[^/]+/)+%s(?:\b[^"]+)?' % self._ID_REGEX
        entries = []
        for match in extract_all(r'new\s+SMP\(({.+?})\)'):
            embed_url = match.get('playerSettings', {}).get('externalEmbedUrl')
            if embed_url and re.match(EMBED_URL, embed_url):
                entries.append(embed_url)
        entries.extend(re.findall(
            r'setPlaylist\("(%s)"\)' % EMBED_URL, webpage))
        if entries:
            return self.playlist_result(
                [self.url_result(entry_, 'BBCCoUk') for entry_ in entries],
                playlist_id, playlist_title, playlist_description)

        # Multiple video article (e.g. http://www.bbc.com/news/world-europe-32668511)
        medias = extract_all(r"data-media-meta='({[^']+})'")

        if not medias:
            # Single video article (e.g. http://www.bbc.com/news/video_and_audio/international)
            media_asset = self._search_regex(
                r'mediaAssetPage\.init\(\s*({.+?}), "/',
                webpage, 'media asset', default=None)
            if media_asset:
                media_asset_page = self._parse_json(media_asset, playlist_id, fatal=False)
                medias = []
                for video in media_asset_page.get('videos', {}).values():
                    medias.extend(video.values())

        if not medias:
            # Multiple video playlist with single `now playing` entry (e.g.
            # http://www.bbc.com/news/video_and_audio/must_see/33767813)
            vxp_playlist = self._parse_json(
                self._search_regex(
                    r'<script[^>]+class="vxp-playlist-data"[^>]+type="application/json"[^>]*>([^<]+)</script>',
                    webpage, 'playlist data'),
                playlist_id)
            playlist_medias = []
            for item in vxp_playlist:
                media = item.get('media')
                if not media:
                    continue
                playlist_medias.append(media)
                # Download single video if found media with asset id matching the video id from URL
                if item.get('advert', {}).get('assetId') == playlist_id:
                    medias = [media]
                    break
            # Fallback to the whole playlist
            if not medias:
                medias = playlist_medias

        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)

            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'))

            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,
                'thumbnails': thumbnails,
                'duration': duration,
                'timestamp': timestamp,
                'formats': formats,
                'subtitles': subtitles,
            })

        return self.playlist_result(entries, playlist_id, playlist_title, playlist_description)

class BBCCoUkArticleIE(InfoExtractor):
    _VALID_URL = r'https?://(?:www\.)?bbc\.co\.uk/programmes/articles/(?P<id>[a-zA-Z0-9]+)'
    IE_NAME = 'bbc.co.uk:article'
    IE_DESC = 'BBC articles'

    _TEST = {
        'url': 'http://www.bbc.co.uk/programmes/articles/3jNQLTMrPlYGTBn0WV6M2MS/not-your-typical-role-model-ada-lovelace-the-19th-century-programmer',
        'info_dict': {
            'id': '3jNQLTMrPlYGTBn0WV6M2MS',
            'title': 'Calculating Ada: The Countess of Computing - Not your typical role model: Ada Lovelace the 19th century programmer - BBC Four',
            'description': 'Hannah Fry reveals some of her surprising discoveries about Ada Lovelace during filming.',
        },
        'playlist_count': 4,
        'add_ie': ['BBCCoUk'],
    }

    def _real_extract(self, url):
        playlist_id = self._match_id(url)

        webpage = self._download_webpage(url, playlist_id)

        title = self._og_search_title(webpage)
        description = self._og_search_description(webpage).strip()

        entries = [self.url_result(programme_url) for programme_url in re.findall(
            r'<div[^>]+typeof="Clip"[^>]+resource="([^"]+)"', webpage)]

        return self.playlist_result(entries, playlist_id, title, description)

class BBCCoUkPlaylistBaseIE(InfoExtractor):
    def _entries(self, webpage, url, playlist_id):
        single_page = 'page' in compat_urlparse.parse_qs(
            compat_urlparse.urlparse(url).query)
        for page_num in itertools.count(2):
            for video_id in re.findall(
                    self._VIDEO_ID_TEMPLATE % BBCCoUkIE._ID_REGEX, webpage):
                yield self.url_result(
                    self._URL_TEMPLATE % video_id, BBCCoUkIE.ie_key())
            if single_page:
                return
            next_page = self._search_regex(
                r'<li[^>]+class=(["\'])pagination_+next\1[^>]*><a[^>]+href=(["\'])(?P<url>(?:(?!\2).)+)\2',
                webpage, 'next page url', default=None, group='url')
            if not next_page:
                break
            webpage = self._download_webpage(
                compat_urlparse.urljoin(url, next_page), playlist_id,
                'Downloading page %d' % page_num, page_num)

    def _real_extract(self, url):
        playlist_id = self._match_id(url)

        webpage = self._download_webpage(url, playlist_id)

        title, description = self._extract_title_and_description(webpage)

        return self.playlist_result(
            self._entries(webpage, url, playlist_id),
            playlist_id, title, description)

class BBCCoUkIPlayerPlaylistIE(BBCCoUkPlaylistBaseIE):
    IE_NAME = 'bbc.co.uk:iplayer:playlist'
    _VALID_URL = r'https?://(?:www\.)?bbc\.co\.uk/iplayer/(?:episodes|group)/(?P<id>%s)' % BBCCoUkIE._ID_REGEX
    _URL_TEMPLATE = 'http://www.bbc.co.uk/iplayer/episode/%s'
    _VIDEO_ID_TEMPLATE = r'data-ip-id=["\'](%s)'
    _TESTS = [{
        'url': 'http://www.bbc.co.uk/iplayer/episodes/b05rcz9v',
        'info_dict': {
            'id': 'b05rcz9v',
            'title': 'The Disappearance',
            'description': 'French thriller serial about a missing teenager.',
        },
        'playlist_mincount': 6,
        'skip': 'This programme is not currently available on BBC iPlayer',
    }, {
        # Available for over a year unlike 30 days for most other programmes
        'url': 'http://www.bbc.co.uk/iplayer/group/p02tcc32',
        'info_dict': {
            'id': 'p02tcc32',
            'title': 'Bohemian Icons',
            'description': 'md5:683e901041b2fe9ba596f2ab04c4dbe7',
        },
        'playlist_mincount': 10,
    }]

    def _extract_title_and_description(self, webpage):
        title = self._search_regex(r'<h1>([^<]+)</h1>', webpage, 'title', fatal=False)
        description = self._search_regex(
            r'<p[^>]+class=(["\'])subtitle\1[^>]*>(?P<value>[^<]+)</p>',
            webpage, 'description', fatal=False, group='value')
        return title, description

class BBCCoUkPlaylistIE(BBCCoUkPlaylistBaseIE):
    IE_NAME = 'bbc.co.uk:playlist'
    _VALID_URL = r'https?://(?:www\.)?bbc\.co\.uk/programmes/(?P<id>%s)/(?:episodes|broadcasts|clips)' % BBCCoUkIE._ID_REGEX
    _URL_TEMPLATE = 'http://www.bbc.co.uk/programmes/%s'
    _VIDEO_ID_TEMPLATE = r'data-pid=["\'](%s)'
    _TESTS = [{
        'url': 'http://www.bbc.co.uk/programmes/b05rcz9v/clips',
        'info_dict': {
            'id': 'b05rcz9v',
            'title': 'The Disappearance - Clips - BBC Four',
            'description': 'French thriller serial about a missing teenager.',
        },
        'playlist_mincount': 7,
    }, {
        # multipage playlist, explicit page
        'url': 'http://www.bbc.co.uk/programmes/b00mfl7n/clips?page=1',
        'info_dict': {
            'id': 'b00mfl7n',
            'title': 'Frozen Planet - Clips - BBC One',
            'description': 'md5:65dcbf591ae628dafe32aa6c4a4a0d8c',
        },
        'playlist_mincount': 24,
    }, {
        # multipage playlist, all pages
        'url': 'http://www.bbc.co.uk/programmes/b00mfl7n/clips',
        'info_dict': {
            'id': 'b00mfl7n',
            'title': 'Frozen Planet - Clips - BBC One',
            'description': 'md5:65dcbf591ae628dafe32aa6c4a4a0d8c',
        },
        'playlist_mincount': 142,
    }, {
        'url': 'http://www.bbc.co.uk/programmes/b05rcz9v/broadcasts/2016/06',
        'only_matching': True,
    }, {
        'url': 'http://www.bbc.co.uk/programmes/b05rcz9v/clips',
        'only_matching': True,
    }, {
        'url': 'http://www.bbc.co.uk/programmes/b055jkys/episodes/player',
        'only_matching': True,
    }]

    def _extract_title_and_description(self, webpage):
        title = self._og_search_title(webpage, fatal=False)
        description = self._og_search_description(webpage)
        return title, description

repo_name: rrosajp/youtube


code:
# coding: utf-8
from __future__ import unicode_literals

from .common import InfoExtractor
from ..utils import (
    ExtractorError,
    clean_html,
    compat_str,
    float_or_none,
    int_or_none,
    parse_iso8601,
    try_get,
    urljoin,
)

class BeamProBaseIE(InfoExtractor):
    _API_BASE = 'https://mixer.com/api/v1'
    _RATINGS = {'family': 0, 'teen': 13, '18+': 18}

    def _extract_channel_info(self, chan):
        user_id = chan.get('userId') or try_get(chan, lambda x: x['user']['id'])
        return {
            'uploader': chan.get('token') or try_get(
                chan, lambda x: x['user']['username'], compat_str),
            'uploader_id': compat_str(user_id) if user_id else None,
            'age_limit': self._RATINGS.get(chan.get('audience')),
        }

class BeamProLiveIE(BeamProBaseIE):
    IE_NAME = 'Mixer:live'
    _VALID_URL = r'https?://(?:\w+\.)?(?:beam\.pro|mixer\.com)/(?P<id>[^/?#&]+)'
    _TEST = {
        'url': 'http://mixer.com/niterhayven',
        'info_dict': {
            'id': '261562',
            'ext': 'mp4',
            'title': 'Introducing The Witcher 3 //  The Grind Starts Now!',
            'description': 'md5:0b161ac080f15fe05d18a07adb44a74d',
            'thumbnail': r're:https://.*\.jpg$',
            'timestamp': 1483477281,
            'upload_date': '20170103',
            'uploader': 'niterhayven',
            'uploader_id': '373396',
            'age_limit': 18,
            'is_live': True,
            'view_count': int,
        },
        'skip': 'niterhayven is offline',
        'params': {
            'skip_download': True,
        },
    }

    _MANIFEST_URL_TEMPLATE = '%s/channels/%%s/manifest.%%s' % BeamProBaseIE._API_BASE

    @classmethod
    def suitable(cls, url):
        return False if BeamProVodIE.suitable(url) else super(BeamProLiveIE, cls).suitable(url)

    def _real_extract(self, url):
        channel_name = self._match_id(url)

        chan = self._download_json(
            '%s/channels/%s' % (self._API_BASE, channel_name), channel_name)

        if chan.get('online') is False:
            raise ExtractorError(
                '{0} is offline'.format(channel_name), expected=True)

        channel_id = chan['id']

        def manifest_url(kind):
            return self._MANIFEST_URL_TEMPLATE % (channel_id, kind)

        formats = self._extract_m3u8_formats(
            manifest_url('m3u8'), channel_name, ext='mp4', m3u8_id='hls',
            fatal=False)
        formats.extend(self._extract_smil_formats(
            manifest_url('smil'), channel_name, fatal=False))
        self._sort_formats(formats)

        info = {
            'id': compat_str(chan.get('id') or channel_name),
            'title': self._live_title(chan.get('name') or channel_name),
            'description': clean_html(chan.get('description')),
            'thumbnail': try_get(
                chan, lambda x: x['thumbnail']['url'], compat_str),
            'timestamp': parse_iso8601(chan.get('updatedAt')),
            'is_live': True,
            'view_count': int_or_none(chan.get('viewersTotal')),
            'formats': formats,
        }
        info.update(self._extract_channel_info(chan))

        return info

class BeamProVodIE(BeamProBaseIE):
    IE_NAME = 'Mixer:vod'
    _VALID_URL = r'https?://(?:\w+\.)?(?:beam\.pro|mixer\.com)/[^/?#&]+\?.*?\bvod=(?P<id>[^?#&]+)'
    _TESTS = [{
        'url': 'https://mixer.com/willow8714?vod=2259830',
        'md5': 'b2431e6e8347dc92ebafb565d368b76b',
        'info_dict': {
            'id': '2259830',
            'ext': 'mp4',
            'title': 'willow8714\'s Channel',
            'duration': 6828.15,
            'thumbnail': r're:https://.*source\.png$',
            'timestamp': 1494046474,
            'upload_date': '20170506',
            'uploader': 'willow8714',
            'uploader_id': '6085379',
            'age_limit': 13,
            'view_count': int,
        },
        'params': {
            'skip_download': True,
        },
    }, {
        'url': 'https://mixer.com/streamer?vod=IxFno1rqC0S_XJ1a2yGgNw',
        'only_matching': True,
    }, {
        'url': 'https://mixer.com/streamer?vod=Rh3LY0VAqkGpEQUe2pN-ig',
        'only_matching': True,
    }]

    @staticmethod
    def _extract_format(vod, vod_type):
        if not vod.get('baseUrl'):
            return []

        if vod_type == 'hls':
            filename, protocol = 'manifest.m3u8', 'm3u8_native'
        elif vod_type == 'raw':
            filename, protocol = 'source.mp4', 'https'
        else:
            assert False

        data = vod.get('data') if isinstance(vod.get('data'), dict) else {}

        format_id = [vod_type]
        if isinstance(data.get('Height'), compat_str):
            format_id.append('%sp' % data['Height'])

        return [{
            'url': urljoin(vod['baseUrl'], filename),
            'format_id': '-'.join(format_id),
            'ext': 'mp4',
            'protocol': protocol,
            'width': int_or_none(data.get('Width')),
            'height': int_or_none(data.get('Height')),
            'fps': int_or_none(data.get('Fps')),
            'tbr': int_or_none(data.get('Bitrate'), 1000),
        }]

    def _real_extract(self, url):
        vod_id = self._match_id(url)

        vod_info = self._download_json(
            '%s/recordings/%s' % (self._API_BASE, vod_id), vod_id)

        state = vod_info.get('state')
        if state != 'AVAILABLE':
            raise ExtractorError(
                'VOD %s is not available (state: %s)' % (vod_id, state),
                expected=True)

        formats = []
        thumbnail_url = None

        for vod in vod_info['vods']:
            vod_type = vod.get('format')
            if vod_type in ('hls', 'raw'):
                formats.extend(self._extract_format(vod, vod_type))
            elif vod_type == 'thumbnail':
                thumbnail_url = urljoin(vod.get('baseUrl'), 'source.png')

        self._sort_formats(formats)

        info = {
            'id': vod_id,
            'title': vod_info.get('name') or vod_id,
            'duration': float_or_none(vod_info.get('duration')),
            'thumbnail': thumbnail_url,
            'timestamp': parse_iso8601(vod_info.get('createdAt')),
            'view_count': int_or_none(vod_info.get('viewsTotal')),
            'formats': formats,
        }
        info.update(self._extract_channel_info(vod_info.get('channel') or {}))

        return info


code:
# coding: utf-8
from __future__ import unicode_literals

import re

from .common import InfoExtractor
from ..compat import compat_str
from ..utils import int_or_none

class BeatportIE(InfoExtractor):
    _VALID_URL = r'https?://(?:www\.|pro\.)?beatport\.com/track/(?P<display_id>[^/]+)/(?P<id>[0-9]+)'
    _TESTS = [{
        'url': 'https://beatport.com/track/synesthesia-original-mix/5379371',
        'md5': 'b3c34d8639a2f6a7f734382358478887',
        'info_dict': {
            'id': '5379371',
            'display_id': 'synesthesia-original-mix',
            'ext': 'mp4',
            'title': 'Froxic - Synesthesia (Original Mix)',
        },
    }, {
        'url': 'https://beatport.com/track/love-and-war-original-mix/3756896',
        'md5': 'e44c3025dfa38c6577fbaeb43da43514',
        'info_dict': {
            'id': '3756896',
            'display_id': 'love-and-war-original-mix',
            'ext': 'mp3',
            'title': 'Wolfgang Gartner - Love & War (Original Mix)',
        },
    }, {
        'url': 'https://beatport.com/track/birds-original-mix/4991738',
        'md5': 'a1fd8e8046de3950fd039304c186c05f',
        'info_dict': {
            'id': '4991738',
            'display_id': 'birds-original-mix',
            'ext': 'mp4',
            'title': "Tos, Middle Milk, Mumblin' Johnsson - Birds (Original Mix)",
        }
    }]

    def _real_extract(self, url):
        mobj = re.match(self._VALID_URL, url)
        track_id = mobj.group('id')
        display_id = mobj.group('display_id')

        webpage = self._download_webpage(url, display_id)

        playables = self._parse_json(
            self._search_regex(
                r'window\.Playables\s*=\s*({.+?});', webpage,
                'playables info', flags=re.DOTALL),
            track_id)

        track = next(t for t in playables['tracks'] if t['id'] == int(track_id))

        title = ', '.join((a['name'] for a in track['artists'])) + ' - ' + track['name']
        if track['mix']:
            title += ' (' + track['mix'] + ')'

        formats = []
        for ext, info in track['preview'].items():
            if not info['url']:
                continue
            fmt = {
                'url': info['url'],
                'ext': ext,
                'format_id': ext,
                'vcodec': 'none',
            }
            if ext == 'mp3':
                fmt['preference'] = 0
                fmt['acodec'] = 'mp3'
                fmt['abr'] = 96
                fmt['asr'] = 44100
            elif ext == 'mp4':
                fmt['preference'] = 1
                fmt['acodec'] = 'aac'
                fmt['abr'] = 96
                fmt['asr'] = 44100
            formats.append(fmt)
        self._sort_formats(formats)

        images = []
        for name, info in track['images'].items():
            image_url = info.get('url')
            if name == 'dynamic' or not image_url:
                continue
            image = {
                'id': name,
                'url': image_url,
                'height': int_or_none(info.get('height')),
                'width': int_or_none(info.get('width')),
            }
            images.append(image)

        return {
            'id': compat_str(track.get('id')) or track_id,
            'display_id': track.get('slug') or display_id,
            'title': title,
            'formats': formats,
            'thumbnails': images,
        }


code:
from __future__ import unicode_literals

from .common import InfoExtractor
from ..compat import (
    compat_str,
    compat_urlparse,
)
from ..utils import (
    int_or_none,
    unified_timestamp,
)

class BeegIE(InfoExtractor):
    _VALID_URL = r'https?://(?:www\.)?beeg\.(?:com|porn(?:/video)?)/(?P<id>\d+)'
    _TESTS = [{
        # api/v6 v1
        'url': 'http://beeg.com/5416503',
        'md5': 'a1a1b1a8bc70a89e49ccfd113aed0820',
        'info_dict': {
            'id': '5416503',
            'ext': 'mp4',
            'title': 'Sultry Striptease',
            'description': 'md5:d22219c09da287c14bed3d6c37ce4bc2',
            'timestamp': 1391813355,
            'upload_date': '20140207',
            'duration': 383,
            'tags': list,
            'age_limit': 18,
        }
    }, {
        # api/v6 v2
        'url': 'https://beeg.com/1941093077?t=911-1391',
        'only_matching': True,
    }, {
        # api/v6 v2 w/o t
        'url': 'https://beeg.com/1277207756',
        'only_matching': True,
    }, {
        'url': 'https://beeg.porn/video/5416503',
        'only_matching': True,
    }, {
        'url': 'https://beeg.porn/5416503',
        'only_matching': True,
    }]

    def _real_extract(self, url):
        video_id = self._match_id(url)

        webpage = self._download_webpage(url, video_id)

        beeg_version = self._search_regex(
            r'beeg_version\s*=\s*([\da-zA-Z_-]+)', webpage, 'beeg version',
            default='1546225636701')

        if len(video_id) >= 10:
            query = {
                'v': 2,
            }
            qs = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
            t = qs.get('t', [''])[0].split('-')
            if len(t) > 1:
                query.update({
                    's': t[0],
                    'e': t[1],
                })
        else:
            query = {'v': 1}

        for api_path in ('', 'api.'):
            video = self._download_json(
                'https://%sbeeg.com/api/v6/%s/video/%s'
                % (api_path, beeg_version, video_id), video_id,
                fatal=api_path == 'api.', query=query)
            if video:
                break

        formats = []
        for format_id, video_url in video.items():
            if not video_url:
                continue
            height = self._search_regex(
                r'^(\d+)[pP]$', format_id, 'height', default=None)
            if not height:
                continue
            formats.append({
                'url': self._proto_relative_url(
                    video_url.replace('{DATA_MARKERS}', 'data=pc_XX__%s_0' % beeg_version), 'https:'),
                'format_id': format_id,
                'height': int(height),
            })
        self._sort_formats(formats)

        title = video['title']
        video_id = compat_str(video.get('id') or video_id)
        display_id = video.get('code')
        description = video.get('desc')
        series = video.get('ps_name')

        timestamp = unified_timestamp(video.get('date'))
        duration = int_or_none(video.get('duration'))

        tags = [tag.strip() for tag in video['tags'].split(',')] if video.get('tags') else None

        return {
            'id': video_id,
            'display_id': display_id,
            'title': title,
            'description': description,
            'series': series,
            'timestamp': timestamp,
            'duration': duration,
            'tags': tags,
            'formats': formats,
            'age_limit': self._rta_search(webpage),
        }


code:
# coding: utf-8
from __future__ import unicode_literals

import re

from .common import InfoExtractor
from ..utils import url_basename

class BehindKinkIE(InfoExtractor):
    _VALID_URL = r'https?://(?:www\.)?behindkink\.com/(?P<year>[0-9]{4})/(?P<month>[0-9]{2})/(?P<day>[0-9]{2})/(?P<id>[^/#?_]+)'
    _TEST = {
        'url': 'http://www.behindkink.com/2014/12/05/what-are-you-passionate-about-marley-blaze/',
        'md5': '507b57d8fdcd75a41a9a7bdb7989c762',
        'info_dict': {
            'id': '37127',
            'ext': 'mp4',
            'title': 'What are you passionate about – Marley Blaze',
            'description': 'md5:aee8e9611b4ff70186f752975d9b94b4',
            'upload_date': '20141205',
            'thumbnail': 'http://www.behindkink.com/wp-content/uploads/2014/12/blaze-1.jpg',
            'age_limit': 18,
        }
    }

    def _real_extract(self, url):
        mobj = re.match(self._VALID_URL, url)
        display_id = mobj.group('id')

        webpage = self._download_webpage(url, display_id)

        video_url = self._search_regex(
            r'<source src="([^"]+)"', webpage, 'video URL')
        video_id = url_basename(video_url).split('_')[0]
        upload_date = mobj.group('year') + mobj.group('month') + mobj.group('day')

        return {
            'id': video_id,
            'display_id': display_id,
            'url': video_url,
            'title': self._og_search_title(webpage),
            'thumbnail': self._og_search_thumbnail(webpage),
            'description': self._og_search_description(webpage),
            'upload_date': upload_date,
            'age_limit': 18,
        }


code:
# coding: utf-8
from __future__ import unicode_literals

import re

from .common import InfoExtractor

class BellMediaIE(InfoExtractor):
    _VALID_URL = r'''(?x)https?://(?:www\.)?
        (?P<domain>
            (?:
                ctv|
                tsn|
                bnn(?:bloomberg)?|
                thecomedynetwork|
                discovery|
                discoveryvelocity|
                sciencechannel|
                investigationdiscovery|
                animalplanet|
                bravo|
                mtv|
                space|
                etalk|
                marilyn
            )\.ca|
            (?:much|cp24)\.com
        )/.*?(?:\b(?:vid(?:eoid)?|clipId)=|-vid|~|%7E|/(?:episode)?)(?P<id>[0-9]{6,})'''
    _TESTS = [{
        'url': 'https://www.bnnbloomberg.ca/video/david-cockfield-s-top-picks~1403070',
        'md5': '36d3ef559cfe8af8efe15922cd3ce950',
        'info_dict': {
            'id': '1403070',
            'ext': 'flv',
            'title': 'David Cockfield\'s Top Picks',
            'description': 'md5:810f7f8c6a83ad5b48677c3f8e5bb2c3',
            'upload_date': '20180525',
            'timestamp': 1527288600,
        },
    }, {
        'url': 'http://www.thecomedynetwork.ca/video/player?vid=923582',
        'only_matching': True,
    }, {
        'url': 'http://www.tsn.ca/video/expectations-high-for-milos-raonic-at-us-open~939549',
        'only_matching': True,
    }, {
        'url': 'http://www.bnn.ca/video/berman-s-call-part-two-viewer-questions~939654',
        'only_matching': True,
    }, {
        'url': 'http://www.ctv.ca/YourMorning/Video/S1E6-Monday-August-29-2016-vid938009',
        'only_matching': True,
    }, {
        'url': 'http://www.much.com/shows/atmidnight/episode948007/tuesday-september-13-2016',
        'only_matching': True,
    }, {
        'url': 'http://www.much.com/shows/the-almost-impossible-gameshow/928979/episode-6',
        'only_matching': True,
    }, {
        'url': 'http://www.ctv.ca/DCs-Legends-of-Tomorrow/Video/S2E11-Turncoat-vid1051430',
        'only_matching': True,
    }, {
        'url': 'http://www.etalk.ca/video?videoid=663455',
        'only_matching': True,
    }, {
        'url': 'https://www.cp24.com/video?clipId=1982548',
        'only_matching': True,
    }]
    _DOMAINS = {
        'thecomedynetwork': 'comedy',
        'discoveryvelocity': 'discvel',
        'sciencechannel': 'discsci',
        'investigationdiscovery': 'invdisc',
        'animalplanet': 'aniplan',
        'etalk': 'ctv',
        'bnnbloomberg': 'bnn',
        'marilyn': 'ctv_marilyn',
    }

    def _real_extract(self, url):
        domain, video_id = re.match(self._VALID_URL, url).groups()
        domain = domain.split('.')[0]
        return {
            '_type': 'url_transparent',
            'id': video_id,
            'url': '9c9media:%s_web:%s' % (self._DOMAINS.get(domain, domain), video_id),
            'ie_key': 'NineCNineMedia',
        }


code:
from __future__ import unicode_literals

from .mtv import MTVServicesInfoExtractor
from ..utils import unified_strdate

class BetIE(MTVServicesInfoExtractor):
    _VALID_URL = r'https?://(?:www\.)?bet\.com/(?:[^/]+/)+(?P<id>.+?)\.html'
    _TESTS = [
        {
            'url': 'http://www.bet.com/news/politics/2014/12/08/in-bet-exclusive-obama-talks-race-and-racism.html',
            'info_dict': {
                'id': '07e96bd3-8850-3051-b856-271b457f0ab8',
                'display_id': 'in-bet-exclusive-obama-talks-race-and-racism',
                'ext': 'flv',
                'title': 'A Conversation With President Obama',
                'description': 'President Obama urges persistence in confronting racism and bias.',
                'duration': 1534,
                'upload_date': '20141208',
                'thumbnail': r're:(?i)^https?://.*\.jpg$',
                'subtitles': {
                    'en': 'mincount:2',
                }
            },
            'params': {
                # rtmp download
                'skip_download': True,
            },
        },
        {
            'url': 'http://www.bet.com/video/news/national/2014/justice-for-ferguson-a-community-reacts.html',
            'info_dict': {
                'id': '9f516bf1-7543-39c4-8076-dd441b459ba9',
                'display_id': 'justice-for-ferguson-a-community-reacts',
                'ext': 'flv',
                'title': 'Justice for Ferguson: A Community Reacts',
                'description': 'A BET News special.',
                'duration': 1696,
                'upload_date': '20141125',
                'thumbnail': r're:(?i)^https?://.*\.jpg$',
                'subtitles': {
                    'en': 'mincount:2',
                }
            },
            'params': {
                # rtmp download
                'skip_download': True,
            },
        }
    ]

    _FEED_URL = "http://feeds.mtvnservices.com/od/feed/bet-mrss-player"

    def _get_feed_query(self, uri):
        return {
            'uuid': uri,
        }

    def _extract_mgid(self, webpage):
        return self._search_regex(r'data-uri="([^"]+)', webpage, 'mgid')

    def _real_extract(self, url):
        display_id = self._match_id(url)

        webpage = self._download_webpage(url, display_id)
        mgid = self._extract_mgid(webpage)
        videos_info = self._get_videos_info(mgid)

        info_dict = videos_info['entries'][0]

        upload_date = unified_strdate(self._html_search_meta('date', webpage))
        description = self._html_search_meta('description', webpage)

        info_dict.update({
            'display_id': display_id,
            'description': description,
            'upload_date': upload_date,
        })

        return info_dict


code:
# coding: utf-8
from __future__ import unicode_literals

import re

from .common import InfoExtractor
from ..utils import extract_attributes

class BFIPlayerIE(InfoExtractor):
    IE_NAME = 'bfi:player'
    _VALID_URL = r'https?://player\.bfi\.org\.uk/[^/]+/film/watch-(?P<id>[\w-]+)-online'
    _TEST = {
        'url': 'https://player.bfi.org.uk/free/film/watch-computer-doctor-1974-online',
        'md5': 'e8783ebd8e061ec4bc6e9501ed547de8',
        'info_dict': {
            'id': 'htNnhlZjE60C9VySkQEIBtU-cNV1Xx63',
            'ext': 'mp4',
            'title': 'Computer Doctor',
            'description': 'md5:fb6c240d40c4dbe40428bdd62f78203b',
        },
        'skip': 'BFI Player films cannot be played outside of the UK',
    }

    def _real_extract(self, url):
        video_id = self._match_id(url)
        webpage = self._download_webpage(url, video_id)
        entries = []
        for player_el in re.findall(r'(?s)<[^>]+class="player"[^>]*>', webpage):
            player_attr = extract_attributes(player_el)
            ooyala_id = player_attr.get('data-video-id')
            if not ooyala_id:
                continue
            entries.append(self.url_result(
                'ooyala:' + ooyala_id, 'Ooyala',
                ooyala_id, player_attr.get('data-label')))
        return self.playlist_result(entries)


code:
# coding: utf-8
from __future__ import unicode_literals

import re

from .common import InfoExtractor
from ..compat import (
    compat_b64decode,
    compat_urllib_parse_unquote,
)

class BigflixIE(InfoExtractor):
    _VALID_URL = r'https?://(?:www\.)?bigflix\.com/.+/(?P<id>[0-9]+)'
    _TESTS = [{
        # 2 formats
        'url': 'http://www.bigflix.com/Tamil-movies/Drama-movies/Madarasapatinam/16070',
        'info_dict': {
            'id': '16070',
            'ext': 'mp4',
            'title': 'Madarasapatinam',
            'description': 'md5:9f0470b26a4ba8e824c823b5d95c2f6b',
            'formats': 'mincount:2',
        },
        'params': {
            'skip_download': True,
        }
    }, {
        # multiple formats
        'url': 'http://www.bigflix.com/Malayalam-movies/Drama-movies/Indian-Rupee/15967',
        'only_matching': True,
    }]

    def _real_extract(self, url):
        video_id = self._match_id(url)

        webpage = self._download_webpage(url, video_id)

        title = self._html_search_regex(
            r'<div[^>]+class=["\']pagetitle["\'][^>]*>(.+?)</div>',
            webpage, 'title')

        def decode_url(quoted_b64_url):
            return compat_b64decode(compat_urllib_parse_unquote(
                quoted_b64_url)).decode('utf-8')

        formats = []
        for height, encoded_url in re.findall(
                r'ContentURL_(\d{3,4})[pP][^=]+=([^&]+)', webpage):
            video_url = decode_url(encoded_url)
            f = {
                'url': video_url,
                'format_id': '%sp' % height,
                'height': int(height),
            }
            if video_url.startswith('rtmp'):
                f['ext'] = 'flv'
            formats.append(f)

        file_url = self._search_regex(
            r'file=([^&]+)', webpage, 'video url', default=None)
        if file_url:
            video_url = decode_url(file_url)
            if all(f['url'] != video_url for f in formats):
                formats.append({
                    'url': decode_url(file_url),
                })

        self._sort_formats(formats)

        description = self._html_search_meta('description', webpage)

        return {
            'id': video_id,
            'title': title,
            'description': description,
            'formats': formats
        }