[Amara] Add new extractor (#20618)

* [Amara] Add new extractor

youtube_dl/extractor/amara.py

@@ -0,0 +1,76 @@
+# coding: utf-8
+from __future__ import unicode_literals
+from .common import InfoExtractor
+
+
+class AmaraIE(InfoExtractor):
+    _VALID_URL = r'https?://(?:www\.)?amara\.org/(?:\w+/)?videos/(?P<id>\w+)'
+    _TESTS = [
+        {
+            'url': 'https://amara.org/en/videos/jVx79ZKGK1ky/info/why-jury-trials-are-becoming-less-common/?tab=video',
+            'md5': 'ea10daf2b6154b8c1ecf9922aca5e8ae',
+            'info_dict': {
+                'id': 'h6ZuVdvYnfE',
+                'ext': 'mp4',
+                'title': 'Why jury trials are becoming less common',
+                'description': 'md5:a61811c319943960b6ab1c23e0cbc2c1',
+                'thumbnail': r're:^https?://.*\.jpg$',
+                'subtitles': dict,
+                'upload_date': '20160813',
+                'uploader': 'PBS NewsHour',
+                'uploader_id': 'PBSNewsHour'
+            }
+        },
+        {
+            'url': 'https://amara.org/en/videos/kYkK1VUTWW5I/info/vimeo-at-ces-2011',
+            'md5': '99392c75fa05d432a8f11df03612195e',
+            'info_dict': {
+                'id': '18622084',
+                'ext': 'mov',
+                'title': 'Vimeo at CES 2011!',
+                'description': 'md5:d41d8cd98f00b204e9800998ecf8427e',
+                'thumbnail': r're:^https?://.*\.jpg$',
+                'subtitles': dict,
+                'timestamp': 1294649110,
+                'upload_date': '20110110',
+                'uploader': 'Sam Morrill',
+                'uploader_id': 'sammorrill'
+            }
+        },
+        {
+            'url': 'https://amara.org/en/videos/s8KL7I3jLmh6/info/the-danger-of-a-single-story/',
+            'md5': 'd3970f08512738ee60c5807311ff5d3f',
+            'info_dict': {
+                'id': 'ChimamandaAdichie_2009G-transcript',
+                'ext': 'mp4',
+                'title': 'The danger of a single story',
+                'description': 'md5:d769b31139c3b8bb5be9177f62ea3f23',
+                'thumbnail': r're:^https?://.*\.jpg$',
+                'subtitles': dict,
+                'upload_date': '20131206'
+            }
+        }
+    ]
+
+    def get_subtitles_for_language(self, language):
+        return [{
+            'ext': type,
+            'url': language['subtitles_uri'].replace('format=json', 'format=' + type)
+        } for type in ['vtt', 'srt', 'json']]
+
+    def _real_extract(self, url):
+        video_id = self._match_id(url)
+        meta = self._download_json('https://amara.org/api/videos/%s/' % video_id, video_id, query={'format': 'json'})
+
+        video_url = meta.get('all_urls')[0]
+        subtitles = dict([(language['code'], self.get_subtitles_for_language(language)) for language in meta.get('languages', []) if language['published']])
+
+        return {
+            '_type': 'url_transparent',
+            'url': video_url,
+            'id': video_id,
+            'subtitles': subtitles,
+            'title': meta['title'],
+            'description': meta.get('description'),
+            'thumbnail': meta.get('thumbnail')
+        }

youtube_dl/extractor/extractors.py

@@ -36,6 +36,7 @@ from .afreecatv import AfreecaTVIE
 from .airmozilla import AirMozillaIE
 from .aljazeera import AlJazeeraIE
 from .alphaporno import AlphaPornoIE
+from .amara import AmaraIE
 from .amcnetworks import AMCNetworksIE
 from .americastestkitchen import AmericasTestKitchenIE
 from .animeondemand import AnimeOnDemandIE