ytdl/youtube_dl/extractor/pbs.py
2015-11-19 20:25:28 +06:00

334 lines
13 KiB
Python
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

# coding: utf-8
from __future__ import unicode_literals
import re
from .common import InfoExtractor
from ..utils import (
ExtractorError,
determine_ext,
int_or_none,
strip_jsonp,
unified_strdate,
US_RATINGS,
)
class PBSIE(InfoExtractor):
_VALID_URL = r'''(?x)https?://
(?:
# Direct video URL
video\.pbs\.org/(?:viralplayer|video)/(?P<id>[0-9]+)/? |
# Article with embedded player (or direct video)
(?:www\.)?pbs\.org/(?:[^/]+/){2,5}(?P<presumptive_id>[^/]+?)(?:\.html)?/?(?:$|[?\#]) |
# Player
(?:video|player)\.pbs\.org/(?:widget/)?partnerplayer/(?P<player_id>[^/]+)/
)
'''
_TESTS = [
{
'url': 'http://www.pbs.org/tpt/constitution-usa-peter-sagal/watch/a-more-perfect-union/',
'md5': 'ce1888486f0908d555a8093cac9a7362',
'info_dict': {
'id': '2365006249',
'ext': 'mp4',
'title': 'Constitution USA with Peter Sagal - A More Perfect Union',
'description': 'md5:ba0c207295339c8d6eced00b7c363c6a',
'duration': 3190,
},
'params': {
'skip_download': True, # requires ffmpeg
},
},
{
'url': 'http://www.pbs.org/wgbh/pages/frontline/losing-iraq/',
'md5': '143c98aa54a346738a3d78f54c925321',
'info_dict': {
'id': '2365297690',
'ext': 'mp4',
'title': 'FRONTLINE - Losing Iraq',
'description': 'md5:f5bfbefadf421e8bb8647602011caf8e',
'duration': 5050,
},
'params': {
'skip_download': True, # requires ffmpeg
}
},
{
'url': 'http://www.pbs.org/newshour/bb/education-jan-june12-cyberschools_02-23/',
'md5': 'b19856d7f5351b17a5ab1dc6a64be633',
'info_dict': {
'id': '2201174722',
'ext': 'mp4',
'title': 'PBS NewsHour - Cyber Schools Gain Popularity, but Quality Questions Persist',
'description': 'md5:5871c15cba347c1b3d28ac47a73c7c28',
'duration': 801,
},
},
{
'url': 'http://www.pbs.org/wnet/gperf/dudamel-conducts-verdi-requiem-hollywood-bowl-full-episode/3374/',
'md5': 'c62859342be2a0358d6c9eb306595978',
'info_dict': {
'id': '2365297708',
'ext': 'mp4',
'description': 'md5:68d87ef760660eb564455eb30ca464fe',
'title': 'Great Performances - Dudamel Conducts Verdi Requiem at the Hollywood Bowl - Full',
'duration': 6559,
'thumbnail': 're:^https?://.*\.jpg$',
},
'params': {
'skip_download': True, # requires ffmpeg
},
},
{
'url': 'http://www.pbs.org/wgbh/nova/earth/killer-typhoon.html',
'md5': '908f3e5473a693b266b84e25e1cf9703',
'info_dict': {
'id': '2365160389',
'display_id': 'killer-typhoon',
'ext': 'mp4',
'description': 'md5:c741d14e979fc53228c575894094f157',
'title': 'NOVA - Killer Typhoon',
'duration': 3172,
'thumbnail': 're:^https?://.*\.jpg$',
'upload_date': '20140122',
'age_limit': 10,
},
'params': {
'skip_download': True, # requires ffmpeg
},
},
{
'url': 'http://www.pbs.org/wgbh/pages/frontline/united-states-of-secrets/',
'info_dict': {
'id': 'united-states-of-secrets',
},
'playlist_count': 2,
},
{
'url': 'http://www.pbs.org/wgbh/americanexperience/films/death/player/',
'info_dict': {
'id': '2276541483',
'display_id': 'player',
'ext': 'mp4',
'title': 'American Experience - Death and the Civil War, Chapter 1',
'description': 'American Experience, TVs most-watched history series, brings to life the compelling stories from our past that inform our understanding of the world today.',
'duration': 682,
'thumbnail': 're:^https?://.*\.jpg$',
},
'params': {
'skip_download': True, # requires ffmpeg
},
},
{
'url': 'http://video.pbs.org/video/2365367186/',
'info_dict': {
'id': '2365367186',
'display_id': '2365367186',
'ext': 'mp4',
'title': 'To Catch A Comet - Full Episode',
'description': 'On November 12, 2014, billions of kilometers from Earth, spacecraft orbiter Rosetta and lander Philae did what no other had dared to attempt \u2014 land on the volatile surface of a comet as it zooms around the sun at 67,000 km/hr. The European Space Agency hopes this mission can help peer into our past and unlock secrets of our origins.',
'duration': 3342,
'thumbnail': 're:^https?://.*\.jpg$',
},
'params': {
'skip_download': True, # requires ffmpeg
},
'skip': 'Expired',
},
{
# Video embedded in iframe containing angle brackets as attribute's value (e.g.
# "<iframe style='position: absolute;<br />\ntop: 0; left: 0;' ...", see
# https://github.com/rg3/youtube-dl/issues/7059)
'url': 'http://www.pbs.org/food/features/a-chefs-life-season-3-episode-5-prickly-business/',
'info_dict': {
'id': '2365546844',
'display_id': 'a-chefs-life-season-3-episode-5-prickly-business',
'ext': 'mp4',
'title': "A Chef's Life - Season 3, Ep. 5: Prickly Business",
'description': 'md5:61db2ddf27c9912f09c241014b118ed1',
'duration': 1480,
'thumbnail': 're:^https?://.*\.jpg$',
},
'params': {
'skip_download': True, # requires ffmpeg
},
},
{
# Frontline video embedded via flp2012.js
'url': 'http://www.pbs.org/wgbh/pages/frontline/the-atomic-artists',
'info_dict': {
'id': '2070868960',
'display_id': 'the-atomic-artists',
'ext': 'mp4',
'title': 'FRONTLINE - The Atomic Artists',
'description': 'md5:f5bfbefadf421e8bb8647602011caf8e',
'duration': 723,
'thumbnail': 're:^https?://.*\.jpg$',
},
'params': {
'skip_download': True, # requires ffmpeg
},
},
{
'url': 'http://player.pbs.org/widget/partnerplayer/2365297708/?start=0&end=0&chapterbar=false&endscreen=false&topbar=true',
'only_matching': True,
}
]
_ERRORS = {
101: 'We\'re sorry, but this video is not yet available.',
403: 'We\'re sorry, but this video is not available in your region due to right restrictions.',
404: 'We are experiencing technical difficulties that are preventing us from playing the video at this time. Please check back again soon.',
410: 'This video has expired and is no longer available for online streaming.',
}
def _extract_webpage(self, url):
mobj = re.match(self._VALID_URL, url)
presumptive_id = mobj.group('presumptive_id')
display_id = presumptive_id
if presumptive_id:
webpage = self._download_webpage(url, display_id)
upload_date = unified_strdate(self._search_regex(
r'<input type="hidden" id="air_date_[0-9]+" value="([^"]+)"',
webpage, 'upload date', default=None))
# tabbed frontline videos
tabbed_videos = re.findall(
r'<div[^>]+class="videotab[^"]*"[^>]+vid="(\d+)"', webpage)
if tabbed_videos:
return tabbed_videos, presumptive_id, upload_date
MEDIA_ID_REGEXES = [
r"div\s*:\s*'videoembed'\s*,\s*mediaid\s*:\s*'(\d+)'", # frontline video embed
r'class="coveplayerid">([^<]+)<', # coveplayer
r'<input type="hidden" id="pbs_video_id_[0-9]+" value="([0-9]+)"/>', # jwplayer
]
media_id = self._search_regex(
MEDIA_ID_REGEXES, webpage, 'media ID', fatal=False, default=None)
if media_id:
return media_id, presumptive_id, upload_date
# Fronline video embedded via flp
video_id = self._search_regex(
r'videoid\s*:\s*"([\d+a-z]{7,})"', webpage, 'videoid', default=None)
if video_id:
# pkg_id calculation is reverse engineered from
# http://www.pbs.org/wgbh/pages/frontline/js/flp2012.js
prg_id = self._search_regex(
r'videoid\s*:\s*"([\d+a-z]{7,})"', webpage, 'videoid')[7:]
if 'q' in prg_id:
prg_id = prg_id.split('q')[1]
prg_id = int(prg_id, 16)
getdir = self._download_json(
'http://www.pbs.org/wgbh/pages/frontline/.json/getdir/getdir%d.json' % prg_id,
presumptive_id, 'Downloading getdir JSON',
transform_source=strip_jsonp)
return getdir['mid'], presumptive_id, upload_date
for iframe in re.findall(r'(?s)<iframe(.+?)></iframe>', webpage):
url = self._search_regex(
r'src=(["\'])(?P<url>.+?partnerplayer.+?)\1', iframe,
'player URL', default=None, group='url')
if url:
break
mobj = re.match(self._VALID_URL, url)
player_id = mobj.group('player_id')
if not display_id:
display_id = player_id
if player_id:
player_page = self._download_webpage(
url, display_id, note='Downloading player page',
errnote='Could not download player page')
video_id = self._search_regex(
r'<div\s+id="video_([0-9]+)"', player_page, 'video ID')
else:
video_id = mobj.group('id')
display_id = video_id
return video_id, display_id, None
def _real_extract(self, url):
video_id, display_id, upload_date = self._extract_webpage(url)
if isinstance(video_id, list):
entries = [self.url_result(
'http://video.pbs.org/video/%s' % vid_id, 'PBS', vid_id)
for vid_id in video_id]
return self.playlist_result(entries, display_id)
info = self._download_json(
'http://player.pbs.org/videoInfo/%s?format=json&type=partner' % video_id,
display_id)
formats = []
for encoding_name in ('recommended_encoding', 'alternate_encoding'):
redirect = info.get(encoding_name)
if not redirect:
continue
redirect_url = redirect.get('url')
if not redirect_url:
continue
redirect_info = self._download_json(
redirect_url + '?format=json', display_id,
'Downloading %s video url info' % encoding_name)
if redirect_info['status'] == 'error':
raise ExtractorError(
'%s said: %s' % (
self.IE_NAME,
self._ERRORS.get(redirect_info['http_code'], redirect_info['message'])),
expected=True)
format_url = redirect_info.get('url')
if not format_url:
continue
if determine_ext(format_url) == 'm3u8':
formats.extend(self._extract_m3u8_formats(
format_url, display_id, 'mp4', preference=1, m3u8_id='hls'))
else:
formats.append({
'url': format_url,
'format_id': redirect.get('eeid'),
})
self._sort_formats(formats)
rating_str = info.get('rating')
if rating_str is not None:
rating_str = rating_str.rpartition('-')[2]
age_limit = US_RATINGS.get(rating_str)
subtitles = {}
closed_captions_url = info.get('closed_captions_url')
if closed_captions_url:
subtitles['en'] = [{
'ext': 'ttml',
'url': closed_captions_url,
}]
# info['title'] is often incomplete (e.g. 'Full Episode', 'Episode 5', etc)
# Try turning it to 'program - title' naming scheme if possible
alt_title = info.get('program', {}).get('title')
if alt_title:
info['title'] = alt_title + ' - ' + re.sub(r'^' + alt_title + '[\s\-:]+', '', info['title'])
return {
'id': video_id,
'display_id': display_id,
'title': info['title'],
'description': info['program'].get('description'),
'thumbnail': info.get('image_url'),
'duration': int_or_none(info.get('duration')),
'age_limit': age_limit,
'upload_date': upload_date,
'formats': formats,
'subtitles': subtitles,
}