]> Raphaƫl G. Git Repositories - youtubedl/blobdiff - youtube_dl/extractor/npo.py
debian/control: Mark compliance with Debian policy 4.2.1.
[youtubedl] / youtube_dl / extractor / npo.py
index c91f5846171be2a720523a4531313703d18920fd..c2cb85a734f256330b9cbb9bfd77910a6f962c45 100644 (file)
@@ -3,145 +3,176 @@ from __future__ import unicode_literals
 import re
 
 from .common import InfoExtractor
-from ..compat import compat_HTTPError
+from ..compat import (
+    compat_HTTPError,
+    compat_str,
+)
 from ..utils import (
+    determine_ext,
+    ExtractorError,
     fix_xml_ampersands,
+    int_or_none,
     orderedSet,
     parse_duration,
     qualities,
     strip_jsonp,
     unified_strdate,
-    ExtractorError,
 )
 
 
 class NPOBaseIE(InfoExtractor):
     def _get_token(self, video_id):
-        token_page = self._download_webpage(
-            'http://ida.omroep.nl/npoplayer/i.js',
-            video_id, note='Downloading token')
-        token = self._search_regex(
-            r'npoplayer\.token = "(.+?)"', token_page, 'token')
-        # Decryption algorithm extracted from http://npoplayer.omroep.nl/csjs/npoplayer-min.js
-        token_l = list(token)
-        first = second = None
-        for i in range(5, len(token_l) - 4):
-            if token_l[i].isdigit():
-                if first is None:
-                    first = i
-                elif second is None:
-                    second = i
-        if first is None or second is None:
-            first = 12
-            second = 13
-
-        token_l[first], token_l[second] = token_l[second], token_l[first]
-
-        return ''.join(token_l)
+        return self._download_json(
+            'http://ida.omroep.nl/app.php/auth', video_id,
+            note='Downloading token')['token']
 
 
 class NPOIE(NPOBaseIE):
     IE_NAME = 'npo'
-    IE_DESC = 'npo.nl and ntr.nl'
+    IE_DESC = 'npo.nl, ntr.nl, omroepwnl.nl, zapp.nl and npo3.nl'
     _VALID_URL = r'''(?x)
                     (?:
                         npo:|
                         https?://
                             (?:www\.)?
                             (?:
-                                npo\.nl/(?!live|radio)(?:[^/]+/){2}|
-                                ntr\.nl/(?:[^/]+/){2,}|
-                                omroepwnl\.nl/video/fragment/[^/]+__
+                                npo\.nl/(?:[^/]+/)*|
+                                (?:ntr|npostart)\.nl/(?:[^/]+/){2,}|
+                                omroepwnl\.nl/video/fragment/[^/]+__|
+                                (?:zapp|npo3)\.nl/(?:[^/]+/){2,}
                             )
                         )
                         (?P<id>[^/?#]+)
                 '''
 
-    _TESTS = [
-        {
-            'url': 'http://www.npo.nl/nieuwsuur/22-06-2014/VPWON_1220719',
-            'md5': '4b3f9c429157ec4775f2c9cb7b911016',
-            'info_dict': {
-                'id': 'VPWON_1220719',
-                'ext': 'm4v',
-                'title': 'Nieuwsuur',
-                'description': 'Dagelijks tussen tien en elf: nieuws, sport en achtergronden.',
-                'upload_date': '20140622',
-            },
+    _TESTS = [{
+        'url': 'http://www.npo.nl/nieuwsuur/22-06-2014/VPWON_1220719',
+        'md5': '4b3f9c429157ec4775f2c9cb7b911016',
+        'info_dict': {
+            'id': 'VPWON_1220719',
+            'ext': 'm4v',
+            'title': 'Nieuwsuur',
+            'description': 'Dagelijks tussen tien en elf: nieuws, sport en achtergronden.',
+            'upload_date': '20140622',
         },
-        {
-            'url': 'http://www.npo.nl/de-mega-mike-mega-thomas-show/27-02-2009/VARA_101191800',
-            'md5': 'da50a5787dbfc1603c4ad80f31c5120b',
-            'info_dict': {
-                'id': 'VARA_101191800',
-                'ext': 'm4v',
-                'title': 'De Mega Mike & Mega Thomas show: The best of.',
-                'description': 'md5:3b74c97fc9d6901d5a665aac0e5400f4',
-                'upload_date': '20090227',
-                'duration': 2400,
-            },
+    }, {
+        'url': 'http://www.npo.nl/de-mega-mike-mega-thomas-show/27-02-2009/VARA_101191800',
+        'md5': 'da50a5787dbfc1603c4ad80f31c5120b',
+        'info_dict': {
+            'id': 'VARA_101191800',
+            'ext': 'm4v',
+            'title': 'De Mega Mike & Mega Thomas show: The best of.',
+            'description': 'md5:3b74c97fc9d6901d5a665aac0e5400f4',
+            'upload_date': '20090227',
+            'duration': 2400,
         },
-        {
-            'url': 'http://www.npo.nl/tegenlicht/25-02-2013/VPWON_1169289',
-            'md5': 'f8065e4e5a7824068ed3c7e783178f2c',
-            'info_dict': {
-                'id': 'VPWON_1169289',
-                'ext': 'm4v',
-                'title': 'Tegenlicht: De toekomst komt uit Afrika',
-                'description': 'md5:52cf4eefbc96fffcbdc06d024147abea',
-                'upload_date': '20130225',
-                'duration': 3000,
-            },
+    }, {
+        'url': 'http://www.npo.nl/tegenlicht/25-02-2013/VPWON_1169289',
+        'md5': 'f8065e4e5a7824068ed3c7e783178f2c',
+        'info_dict': {
+            'id': 'VPWON_1169289',
+            'ext': 'm4v',
+            'title': 'Tegenlicht: Zwart geld. De toekomst komt uit Afrika',
+            'description': 'md5:52cf4eefbc96fffcbdc06d024147abea',
+            'upload_date': '20130225',
+            'duration': 3000,
         },
-        {
-            'url': 'http://www.npo.nl/de-nieuwe-mens-deel-1/21-07-2010/WO_VPRO_043706',
-            'info_dict': {
-                'id': 'WO_VPRO_043706',
-                'ext': 'wmv',
-                'title': 'De nieuwe mens - Deel 1',
-                'description': 'md5:518ae51ba1293ffb80d8d8ce90b74e4b',
-                'duration': 4680,
-            },
-            'params': {
-                # mplayer mms download
-                'skip_download': True,
-            }
+    }, {
+        'url': 'http://www.npo.nl/de-nieuwe-mens-deel-1/21-07-2010/WO_VPRO_043706',
+        'info_dict': {
+            'id': 'WO_VPRO_043706',
+            'ext': 'm4v',
+            'title': 'De nieuwe mens - Deel 1',
+            'description': 'md5:518ae51ba1293ffb80d8d8ce90b74e4b',
+            'duration': 4680,
         },
+        'params': {
+            'skip_download': True,
+        }
+    }, {
         # non asf in streams
-        {
-            'url': 'http://www.npo.nl/hoe-gaat-europa-verder-na-parijs/10-01-2015/WO_NOS_762771',
-            'md5': 'b3da13de374cbe2d5332a7e910bef97f',
-            'info_dict': {
-                'id': 'WO_NOS_762771',
-                'ext': 'mp4',
-                'title': 'Hoe gaat Europa verder na Parijs?',
-            },
+        'url': 'http://www.npo.nl/hoe-gaat-europa-verder-na-parijs/10-01-2015/WO_NOS_762771',
+        'info_dict': {
+            'id': 'WO_NOS_762771',
+            'ext': 'mp4',
+            'title': 'Hoe gaat Europa verder na Parijs?',
         },
-        {
-            'url': 'http://www.ntr.nl/Aap-Poot-Pies/27/detail/Aap-poot-pies/VPWON_1233944#content',
-            'md5': '01c6a2841675995da1f0cf776f03a9c3',
-            'info_dict': {
-                'id': 'VPWON_1233944',
-                'ext': 'm4v',
-                'title': 'Aap, poot, pies',
-                'description': 'md5:c9c8005d1869ae65b858e82c01a91fde',
-                'upload_date': '20150508',
-                'duration': 599,
-            },
+        'params': {
+            'skip_download': True,
+        }
+    }, {
+        'url': 'http://www.ntr.nl/Aap-Poot-Pies/27/detail/Aap-poot-pies/VPWON_1233944#content',
+        'info_dict': {
+            'id': 'VPWON_1233944',
+            'ext': 'm4v',
+            'title': 'Aap, poot, pies',
+            'description': 'md5:c9c8005d1869ae65b858e82c01a91fde',
+            'upload_date': '20150508',
+            'duration': 599,
         },
-        {
-            'url': 'http://www.omroepwnl.nl/video/fragment/vandaag-de-dag-verkiezingen__POMS_WNL_853698',
-            'md5': 'd30cd8417b8b9bca1fdff27428860d08',
-            'info_dict': {
-                'id': 'POW_00996502',
-                'ext': 'm4v',
-                'title': '''"Dit is wel een 'landslide'..."''',
-                'description': 'md5:f8d66d537dfb641380226e31ca57b8e8',
-                'upload_date': '20150508',
-                'duration': 462,
-            },
+        'params': {
+            'skip_download': True,
         }
-    ]
+    }, {
+        'url': 'http://www.omroepwnl.nl/video/fragment/vandaag-de-dag-verkiezingen__POMS_WNL_853698',
+        'info_dict': {
+            'id': 'POW_00996502',
+            'ext': 'm4v',
+            'title': '''"Dit is wel een 'landslide'..."''',
+            'description': 'md5:f8d66d537dfb641380226e31ca57b8e8',
+            'upload_date': '20150508',
+            'duration': 462,
+        },
+        'params': {
+            'skip_download': True,
+        }
+    }, {
+        # audio
+        'url': 'http://www.npo.nl/jouw-stad-rotterdam/29-01-2017/RBX_FUNX_6683215/RBX_FUNX_7601437',
+        'info_dict': {
+            'id': 'RBX_FUNX_6683215',
+            'ext': 'mp3',
+            'title': 'Jouw Stad Rotterdam',
+            'description': 'md5:db251505244f097717ec59fabc372d9f',
+        },
+        'params': {
+            'skip_download': True,
+        }
+    }, {
+        'url': 'http://www.zapp.nl/de-bzt-show/gemist/KN_1687547',
+        'only_matching': True,
+    }, {
+        'url': 'http://www.zapp.nl/de-bzt-show/filmpjes/POMS_KN_7315118',
+        'only_matching': True,
+    }, {
+        'url': 'http://www.zapp.nl/beste-vrienden-quiz/extra-video-s/WO_NTR_1067990',
+        'only_matching': True,
+    }, {
+        'url': 'https://www.npo3.nl/3onderzoekt/16-09-2015/VPWON_1239870',
+        'only_matching': True,
+    }, {
+        # live stream
+        'url': 'npo:LI_NL1_4188102',
+        'only_matching': True,
+    }, {
+        'url': 'http://www.npo.nl/radio-gaga/13-06-2017/BNN_101383373',
+        'only_matching': True,
+    }, {
+        'url': 'https://www.zapp.nl/1803-skelterlab/instructie-video-s/740-instructievideo-s/POMS_AT_11736927',
+        'only_matching': True,
+    }, {
+        'url': 'https://www.npostart.nl/broodje-gezond-ei/28-05-2018/KN_1698996',
+        'only_matching': True,
+    }, {
+        'url': 'https://npo.nl/KN_1698996',
+        'only_matching': True,
+    }]
+
+    @classmethod
+    def suitable(cls, url):
+        return (False if any(ie.suitable(url)
+                for ie in (NPOLiveIE, NPORadioIE, NPORadioFragmentIE))
+                else super(NPOIE, cls).suitable(url))
 
     def _real_extract(self, url):
         video_id = self._match_id(url)
@@ -155,6 +186,10 @@ class NPOIE(NPOBaseIE):
             transform_source=strip_jsonp,
         )
 
+        error = metadata.get('error')
+        if error:
+            raise ExtractorError(error, expected=True)
+
         # For some videos actual video id (prid) is different (e.g. for
         # http://www.omroepwnl.nl/video/fragment/vandaag-de-dag-verkiezingen__POMS_WNL_853698
         # video id is POMS_WNL_853698 but prid is POW_00996502)
@@ -170,70 +205,139 @@ class NPOIE(NPOBaseIE):
         token = self._get_token(video_id)
 
         formats = []
+        urls = set()
+
+        def is_legal_url(format_url):
+            return format_url and format_url not in urls and re.match(
+                r'^(?:https?:)?//', format_url)
+
+        QUALITY_LABELS = ('Laag', 'Normaal', 'Hoog')
+        QUALITY_FORMATS = ('adaptive', 'wmv_sb', 'h264_sb', 'wmv_bb', 'h264_bb', 'wvc1_std', 'h264_std')
+
+        quality_from_label = qualities(QUALITY_LABELS)
+        quality_from_format_id = qualities(QUALITY_FORMATS)
+        items = self._download_json(
+            'http://ida.omroep.nl/app.php/%s' % video_id, video_id,
+            'Downloading formats JSON', query={
+                'adaptive': 'yes',
+                'token': token,
+            })['items'][0]
+        for num, item in enumerate(items):
+            item_url = item.get('url')
+            if not is_legal_url(item_url):
+                continue
+            urls.add(item_url)
+            format_id = self._search_regex(
+                r'video/ida/([^/]+)', item_url, 'format id',
+                default=None)
+
+            item_label = item.get('label')
+
+            def add_format_url(format_url):
+                width = int_or_none(self._search_regex(
+                    r'(\d+)[xX]\d+', format_url, 'width', default=None))
+                height = int_or_none(self._search_regex(
+                    r'\d+[xX](\d+)', format_url, 'height', default=None))
+                if item_label in QUALITY_LABELS:
+                    quality = quality_from_label(item_label)
+                    f_id = item_label
+                elif item_label in QUALITY_FORMATS:
+                    quality = quality_from_format_id(format_id)
+                    f_id = format_id
+                else:
+                    quality, f_id = [None] * 2
+                formats.append({
+                    'url': format_url,
+                    'format_id': f_id,
+                    'width': width,
+                    'height': height,
+                    'quality': quality,
+                })
 
-        pubopties = metadata.get('pubopties')
-        if pubopties:
-            quality = qualities(['adaptive', 'wmv_sb', 'h264_sb', 'wmv_bb', 'h264_bb', 'wvc1_std', 'h264_std'])
-            for format_id in pubopties:
-                format_info = self._download_json(
-                    'http://ida.omroep.nl/odi/?prid=%s&puboptions=%s&adaptive=yes&token=%s'
-                    % (video_id, format_id, token),
-                    video_id, 'Downloading %s JSON' % format_id)
-                if format_info.get('error_code', 0) or format_info.get('errorcode', 0):
+            # Example: http://www.npo.nl/de-nieuwe-mens-deel-1/21-07-2010/WO_VPRO_043706
+            if item.get('contentType') in ('url', 'audio'):
+                add_format_url(item_url)
+                continue
+
+            try:
+                stream_info = self._download_json(
+                    item_url + '&type=json', video_id,
+                    'Downloading %s stream JSON'
+                    % item_label or item.get('format') or format_id or num)
+            except ExtractorError as ee:
+                if isinstance(ee.cause, compat_HTTPError) and ee.cause.code == 404:
+                    error = (self._parse_json(
+                        ee.cause.read().decode(), video_id,
+                        fatal=False) or {}).get('errorstring')
+                    if error:
+                        raise ExtractorError(error, expected=True)
+                raise
+            # Stream URL instead of JSON, example: npo:LI_NL1_4188102
+            if isinstance(stream_info, compat_str):
+                if not stream_info.startswith('http'):
                     continue
-                streams = format_info.get('streams')
-                if streams:
-                    try:
-                        video_info = self._download_json(
-                            streams[0] + '&type=json',
-                            video_id, 'Downloading %s stream JSON' % format_id)
-                    except ExtractorError as ee:
-                        if isinstance(ee.cause, compat_HTTPError) and ee.cause.code == 404:
-                            error = (self._parse_json(ee.cause.read().decode(), video_id, fatal=False) or {}).get('errorstring')
-                            if error:
-                                raise ExtractorError(error, expected=True)
-                        raise
-                else:
-                    video_info = format_info
-                video_url = video_info.get('url')
-                if not video_url:
+                video_url = stream_info
+            # JSON
+            else:
+                video_url = stream_info.get('url')
+            if not video_url or video_url in urls:
+                continue
+            urls.add(video_url)
+            if determine_ext(video_url) == 'm3u8':
+                formats.extend(self._extract_m3u8_formats(
+                    video_url, video_id, ext='mp4',
+                    entry_protocol='m3u8_native', m3u8_id='hls', fatal=False))
+            else:
+                add_format_url(video_url)
+
+        is_live = metadata.get('medium') == 'live'
+
+        if not is_live:
+            for num, stream in enumerate(metadata.get('streams', [])):
+                stream_url = stream.get('url')
+                if not is_legal_url(stream_url):
                     continue
-                if format_id == 'adaptive':
-                    formats.extend(self._extract_m3u8_formats(video_url, video_id, 'mp4'))
-                else:
+                urls.add(stream_url)
+                # smooth streaming is not supported
+                stream_type = stream.get('type', '').lower()
+                if stream_type in ['ss', 'ms']:
+                    continue
+                if stream_type == 'hds':
+                    f4m_formats = self._extract_f4m_formats(
+                        stream_url, video_id, fatal=False)
+                    # f4m downloader downloads only piece of live stream
+                    for f4m_format in f4m_formats:
+                        f4m_format['preference'] = -1
+                    formats.extend(f4m_formats)
+                elif stream_type == 'hls':
+                    formats.extend(self._extract_m3u8_formats(
+                        stream_url, video_id, ext='mp4', fatal=False))
+                # Example: http://www.npo.nl/de-nieuwe-mens-deel-1/21-07-2010/WO_VPRO_043706
+                elif '.asf' in stream_url:
+                    asx = self._download_xml(
+                        stream_url, video_id,
+                        'Downloading stream %d ASX playlist' % num,
+                        transform_source=fix_xml_ampersands, fatal=False)
+                    if not asx:
+                        continue
+                    ref = asx.find('./ENTRY/Ref')
+                    if ref is None:
+                        continue
+                    video_url = ref.get('href')
+                    if not video_url or video_url in urls:
+                        continue
+                    urls.add(video_url)
                     formats.append({
                         'url': video_url,
-                        'format_id': format_id,
-                        'quality': quality(format_id),
+                        'ext': stream.get('formaat', 'asf'),
+                        'quality': stream.get('kwaliteit'),
+                        'preference': -10,
                     })
-
-        streams = metadata.get('streams')
-        if streams:
-            for i, stream in enumerate(streams):
-                stream_url = stream.get('url')
-                if not stream_url:
-                    continue
-                if '.asf' not in stream_url:
+                else:
                     formats.append({
                         'url': stream_url,
                         'quality': stream.get('kwaliteit'),
                     })
-                    continue
-                asx = self._download_xml(
-                    stream_url, video_id,
-                    'Downloading stream %d ASX playlist' % i,
-                    transform_source=fix_xml_ampersands)
-                ref = asx.find('./ENTRY/Ref')
-                if ref is None:
-                    continue
-                video_url = ref.get('href')
-                if not video_url:
-                    continue
-                formats.append({
-                    'url': video_url,
-                    'ext': stream.get('formaat', 'asf'),
-                    'quality': stream.get('kwaliteit'),
-                })
 
         self._sort_formats(formats)
 
@@ -241,106 +345,63 @@ class NPOIE(NPOBaseIE):
         if metadata.get('tt888') == 'ja':
             subtitles['nl'] = [{
                 'ext': 'vtt',
-                'url': 'http://e.omroep.nl/tt888/%s' % video_id,
+                'url': 'http://tt888.omroep.nl/tt888/%s' % video_id,
             }]
 
         return {
             'id': video_id,
-            'title': title,
+            'title': self._live_title(title) if is_live else title,
             'description': metadata.get('info'),
             'thumbnail': metadata.get('images', [{'url': None}])[-1]['url'],
             'upload_date': unified_strdate(metadata.get('gidsdatum')),
             'duration': parse_duration(metadata.get('tijdsduur')),
             'formats': formats,
             'subtitles': subtitles,
+            'is_live': is_live,
         }
 
 
 class NPOLiveIE(NPOBaseIE):
     IE_NAME = 'npo.nl:live'
-    _VALID_URL = r'https?://(?:www\.)?npo\.nl/live/(?P<id>.+)'
+    _VALID_URL = r'https?://(?:www\.)?npo\.nl/live(?:/(?P<id>[^/?#&]+))?'
 
-    _TEST = {
+    _TESTS = [{
         'url': 'http://www.npo.nl/live/npo-1',
         'info_dict': {
-            'id': 'LI_NEDERLAND1_136692',
+            'id': 'LI_NL1_4188102',
             'display_id': 'npo-1',
             'ext': 'mp4',
-            'title': 're:^Nederland 1 [0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}$',
-            'description': 'Livestream',
+            'title': 're:^NPO 1 [0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}$',
             'is_live': True,
         },
         'params': {
             'skip_download': True,
         }
-    }
+    }, {
+        'url': 'http://www.npo.nl/live',
+        'only_matching': True,
+    }]
 
     def _real_extract(self, url):
-        display_id = self._match_id(url)
+        display_id = self._match_id(url) or 'npo-1'
 
         webpage = self._download_webpage(url, display_id)
 
         live_id = self._search_regex(
-            r'data-prid="([^"]+)"', webpage, 'live id')
-
-        metadata = self._download_json(
-            'http://e.omroep.nl/metadata/%s' % live_id,
-            display_id, transform_source=strip_jsonp)
-
-        token = self._get_token(display_id)
-
-        formats = []
-
-        streams = metadata.get('streams')
-        if streams:
-            for stream in streams:
-                stream_type = stream.get('type').lower()
-                # smooth streaming is not supported
-                if stream_type in ['ss', 'ms']:
-                    continue
-                stream_info = self._download_json(
-                    'http://ida.omroep.nl/aapi/?stream=%s&token=%s&type=jsonp'
-                    % (stream.get('url'), token),
-                    display_id, 'Downloading %s JSON' % stream_type)
-                if stream_info.get('error_code', 0) or stream_info.get('errorcode', 0):
-                    continue
-                stream_url = self._download_json(
-                    stream_info['stream'], display_id,
-                    'Downloading %s URL' % stream_type,
-                    'Unable to download %s URL' % stream_type,
-                    transform_source=strip_jsonp, fatal=False)
-                if not stream_url:
-                    continue
-                if stream_type == 'hds':
-                    f4m_formats = self._extract_f4m_formats(stream_url, display_id)
-                    # f4m downloader downloads only piece of live stream
-                    for f4m_format in f4m_formats:
-                        f4m_format['preference'] = -1
-                    formats.extend(f4m_formats)
-                elif stream_type == 'hls':
-                    formats.extend(self._extract_m3u8_formats(stream_url, display_id, 'mp4'))
-                else:
-                    formats.append({
-                        'url': stream_url,
-                        'preference': -10,
-                    })
-
-        self._sort_formats(formats)
+            [r'media-id="([^"]+)"', r'data-prid="([^"]+)"'], webpage, 'live id')
 
         return {
+            '_type': 'url_transparent',
+            'url': 'npo:%s' % live_id,
+            'ie_key': NPOIE.ie_key(),
             'id': live_id,
             'display_id': display_id,
-            'title': self._live_title(metadata['titel']),
-            'description': metadata['info'],
-            'thumbnail': metadata.get('images', [{'url': None}])[-1]['url'],
-            'formats': formats,
-            'is_live': True,
         }
 
 
 class NPORadioIE(InfoExtractor):
     IE_NAME = 'npo.nl:radio'
-    _VALID_URL = r'https?://(?:www\.)?npo\.nl/radio/(?P<id>[^/]+)/?$'
+    _VALID_URL = r'https?://(?:www\.)?npo\.nl/radio/(?P<id>[^/]+)'
 
     _TEST = {
         'url': 'http://www.npo.nl/radio/radio-1',
@@ -355,6 +416,10 @@ class NPORadioIE(InfoExtractor):
         }
     }
 
+    @classmethod
+    def suitable(cls, url):
+        return False if NPORadioFragmentIE.suitable(url) else super(NPORadioIE, cls).suitable(url)
+
     @staticmethod
     def _html_get_attribute_regex(attribute):
         return r'{0}\s*=\s*\'([^\']+)\''.format(attribute)
@@ -416,7 +481,21 @@ class NPORadioFragmentIE(InfoExtractor):
         }
 
 
-class SchoolTVIE(InfoExtractor):
+class NPODataMidEmbedIE(InfoExtractor):
+    def _real_extract(self, url):
+        display_id = self._match_id(url)
+        webpage = self._download_webpage(url, display_id)
+        video_id = self._search_regex(
+            r'data-mid=(["\'])(?P<id>(?:(?!\1).)+)\1', webpage, 'video_id', group='id')
+        return {
+            '_type': 'url_transparent',
+            'ie_key': 'NPO',
+            'url': 'npo:%s' % video_id,
+            'display_id': display_id
+        }
+
+
+class SchoolTVIE(NPODataMidEmbedIE):
     IE_NAME = 'schooltv'
     _VALID_URL = r'https?://(?:www\.)?schooltv\.nl/video/(?P<id>[^/?#&]+)'
 
@@ -435,17 +514,25 @@ class SchoolTVIE(InfoExtractor):
         }
     }
 
-    def _real_extract(self, url):
-        display_id = self._match_id(url)
-        webpage = self._download_webpage(url, display_id)
-        video_id = self._search_regex(
-            r'data-mid=(["\'])(?P<id>(?:(?!\1).)+)\1', webpage, 'video_id', group='id')
-        return {
-            '_type': 'url_transparent',
-            'ie_key': 'NPO',
-            'url': 'npo:%s' % video_id,
-            'display_id': display_id
+
+class HetKlokhuisIE(NPODataMidEmbedIE):
+    IE_NAME = 'hetklokhuis'
+    _VALID_URL = r'https?://(?:www\.)?hetklokhuis\.nl/[^/]+/\d+/(?P<id>[^/?#&]+)'
+
+    _TEST = {
+        'url': 'http://hetklokhuis.nl/tv-uitzending/3471/Zwaartekrachtsgolven',
+        'info_dict': {
+            'id': 'VPWON_1260528',
+            'display_id': 'Zwaartekrachtsgolven',
+            'ext': 'm4v',
+            'title': 'Het Klokhuis: Zwaartekrachtsgolven',
+            'description': 'md5:c94f31fb930d76c2efa4a4a71651dd48',
+            'upload_date': '20170223',
+        },
+        'params': {
+            'skip_download': True
         }
+    }
 
 
 class NPOPlaylistBaseIE(NPOIE):