[nfb] Add extractor (#2579)

Authored by: ofkz

yt_dlp/extractor/extractors.py

@@ -984,6 +984,7 @@
     NexxIE,
     NexxEmbedIE,
 )
+from .nfb import NFBIE
 from .nfhsnetwork import NFHSNetworkIE
 from .nfl import (
     NFLIE,

yt_dlp/extractor/nfb.py

@@ -0,0 +1,62 @@
+# coding: utf-8
+from __future__ import unicode_literals
+
+from .common import InfoExtractor
+from ..utils import int_or_none
+
+
+class NFBIE(InfoExtractor):
+    _VALID_URL = r'https?://(?:www\.)?nfb\.ca/film/(?P<id>[^/?#&]+)'
+    _TESTS = [{
+        'url': 'https://www.nfb.ca/film/trafficopter/',
+        'info_dict': {
+            'id': 'trafficopter',
+            'ext': 'mp4',
+            'title': 'Trafficopter',
+            'description': 'md5:060228455eb85cf88785c41656776bc0',
+            'thumbnail': r're:^https?://.*\.jpg$',
+            'uploader': 'Barrie Howells',
+            'release_year': 1972,
+        },
+    }]
+
+    def _real_extract(self, url):
+        video_id = self._match_id(url)
+
+        webpage = self._download_webpage('https://www.nfb.ca/film/%s/' % video_id, video_id)
+
+        iframe = self._html_search_regex(
+            r'<[^>]+\bid=["\']player-iframe["\'][^>]*src=["\']([^"\']+)',
+            webpage, 'iframe', default=None, fatal=True)
+        if iframe.startswith('/'):
+            iframe = f'https://www.nfb.ca{iframe}'
+
+        player = self._download_webpage(iframe, video_id)
+
+        source = self._html_search_regex(
+            r'source:\s*\'([^\']+)',
+            player, 'source', default=None, fatal=True)
+
+        formats, subtitles = self._extract_m3u8_formats_and_subtitles(source, video_id, ext='mp4')
+        self._sort_formats(formats)
+
+        return {
+            'id': video_id,
+            'title': self._html_search_regex(
+                r'<[^>]+\bid=["\']titleHeader["\'][^>]*>\s*<h1[^>]*>\s*([^<]+?)\s*</h1>',
+                webpage, 'title', default=None),
+            'description': self._html_search_regex(
+                r'<[^>]+\bid=["\']tabSynopsis["\'][^>]*>\s*<p[^>]*>\s*([^<]+)',
+                webpage, 'description', default=None),
+            'thumbnail': self._html_search_regex(
+                r'poster:\s*\'([^\']+)',
+                player, 'thumbnail', default=None),
+            'uploader': self._html_search_regex(
+                r'<[^>]+\bitemprop=["\']name["\'][^>]*>([^<]+)',
+                webpage, 'uploader', default=None),
+            'release_year': int_or_none(self._html_search_regex(
+                r'<[^>]+\bitemprop=["\']datePublished["\'][^>]*>([^<]+)',
+                webpage, 'release_year', default=None)),
+            'formats': formats,
+            'subtitles': subtitles,
+        }