X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=youtube_dl%2Fextractor%2Fcommon.py;h=e747258aa22378ddd25acbe3aeb5b096c32b2df3;hb=485047854376465f95309daad4966971f56728ef;hp=0852b8e8c1c15e3600ed16d5e95d9cac901f32bc;hpb=46b18f2349670d395b9d84a57ee3d9b5d221ff4b;p=youtube-dl

diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py
index 0852b8e8c..e747258aa 100644
--- a/youtube_dl/extractor/common.py
+++ b/youtube_dl/extractor/common.py
@@ -1,3 +1,4 @@
+# coding: utf-8
 from __future__ import unicode_literals
 
 import base64
@@ -244,6 +245,10 @@ class InfoExtractor(object):
                     specified in the URL.
     end_time:       Time in seconds where the reproduction should end, as
                     specified in the URL.
+    chapters:       A list of dictionaries, with the following entries:
+                        * "start_time" - The start time of the chapter in seconds
+                        * "end_time" - The end time of the chapter in seconds
+                        * "title" (optional, string)
 
     The following fields should only be used when the video belongs to some logical
     chapter or section:
@@ -371,7 +376,7 @@ class InfoExtractor(object):
             cls._VALID_URL_RE = re.compile(cls._VALID_URL)
         m = cls._VALID_URL_RE.match(url)
         assert m
-        return m.group('id')
+        return compat_str(m.group('id'))
 
     @classmethod
     def working(cls):
@@ -415,7 +420,7 @@ class InfoExtractor(object):
             if country_code:
                 self._x_forwarded_for_ip = GeoUtils.random_ipv4(country_code)
                 if self._downloader.params.get('verbose', False):
-                    self._downloader.to_stdout(
+                    self._downloader.to_screen(
                         '[debug] Using fake IP %s (%s) as X-Forwarded-For.'
                         % (self._x_forwarded_for_ip, country_code.upper()))
 
@@ -547,6 +552,34 @@ class InfoExtractor(object):
 
         return encoding
 
+    def __check_blocked(self, content):
+        first_block = content[:512]
+        if ('<title>Access to this site is blocked</title>' in content and
+                'Websense' in first_block):
+            msg = 'Access to this webpage has been blocked by Websense filtering software in your network.'
+            blocked_iframe = self._html_search_regex(
+                r'<iframe src="([^"]+)"', content,
+                'Websense information URL', default=None)
+            if blocked_iframe:
+                msg += ' Visit %s for more details' % blocked_iframe
+            raise ExtractorError(msg, expected=True)
+        if '<title>The URL you requested has been blocked</title>' in first_block:
+            msg = (
+                'Access to this webpage has been blocked by Indian censorship. '
+                'Use a VPN or proxy server (with --proxy) to route around it.')
+            block_msg = self._html_search_regex(
+                r'</h1><p>(.*?)</p>',
+                content, 'block message', default=None)
+            if block_msg:
+                msg += ' (Message: "%s")' % block_msg.replace('\n', ' ')
+            raise ExtractorError(msg, expected=True)
+        if ('<title>TTK :: Доступ к ресурсу ограничен</title>' in content and
+                'blocklist.rkn.gov.ru' in content):
+            raise ExtractorError(
+                'Access to this webpage has been blocked by decision of the Russian government. '
+                'Visit http://blocklist.rkn.gov.ru/ for a block reason.',
+                expected=True)
+
     def _webpage_read_content(self, urlh, url_or_request, video_id, note=None, errnote=None, fatal=True, prefix=None, encoding=None):
         content_type = urlh.headers.get('Content-Type', '')
         webpage_bytes = urlh.read()
@@ -588,25 +621,7 @@ class InfoExtractor(object):
         except LookupError:
             content = webpage_bytes.decode('utf-8', 'replace')
 
-        if ('<title>Access to this site is blocked</title>' in content and
-                'Websense' in content[:512]):
-            msg = 'Access to this webpage has been blocked by Websense filtering software in your network.'
-            blocked_iframe = self._html_search_regex(
-                r'<iframe src="([^"]+)"', content,
-                'Websense information URL', default=None)
-            if blocked_iframe:
-                msg += ' Visit %s for more details' % blocked_iframe
-            raise ExtractorError(msg, expected=True)
-        if '<title>The URL you requested has been blocked</title>' in content[:512]:
-            msg = (
-                'Access to this webpage has been blocked by Indian censorship. '
-                'Use a VPN or proxy server (with --proxy) to route around it.')
-            block_msg = self._html_search_regex(
-                r'</h1><p>(.*?)</p>',
-                content, 'block message', default=None)
-            if block_msg:
-                msg += ' (Message: "%s")' % block_msg.replace('\n', ' ')
-            raise ExtractorError(msg, expected=True)
+        self.__check_blocked(content)
 
         return content
 
@@ -715,12 +730,12 @@ class InfoExtractor(object):
             video_info['title'] = video_title
         return video_info
 
-    def playlist_from_matches(self, matches, video_id, video_title, getter=None, ie=None):
-        urlrs = orderedSet(
+    def playlist_from_matches(self, matches, playlist_id=None, playlist_title=None, getter=None, ie=None):
+        urls = orderedSet(
             self.url_result(self._proto_relative_url(getter(m) if getter else m), ie)
             for m in matches)
         return self.playlist_result(
-            urlrs, playlist_id=video_id, playlist_title=video_title)
+            urls, playlist_id=playlist_id, playlist_title=playlist_title)
 
     @staticmethod
     def playlist_result(entries, playlist_id=None, playlist_title=None, playlist_description=None):
@@ -925,7 +940,8 @@ class InfoExtractor(object):
 
     def _family_friendly_search(self, html):
         # See http://schema.org/VideoObject
-        family_friendly = self._html_search_meta('isFamilyFriendly', html)
+        family_friendly = self._html_search_meta(
+            'isFamilyFriendly', html, default=None)
 
         if not family_friendly:
             return None
@@ -965,22 +981,39 @@ class InfoExtractor(object):
             return info
         if isinstance(json_ld, dict):
             json_ld = [json_ld]
+
+        def extract_video_object(e):
+            assert e['@type'] == 'VideoObject'
+            info.update({
+                'url': e.get('contentUrl'),
+                'title': unescapeHTML(e.get('name')),
+                'description': unescapeHTML(e.get('description')),
+                'thumbnail': e.get('thumbnailUrl') or e.get('thumbnailURL'),
+                'duration': parse_duration(e.get('duration')),
+                'timestamp': unified_timestamp(e.get('uploadDate')),
+                'filesize': float_or_none(e.get('contentSize')),
+                'tbr': int_or_none(e.get('bitrate')),
+                'width': int_or_none(e.get('width')),
+                'height': int_or_none(e.get('height')),
+                'view_count': int_or_none(e.get('interactionCount')),
+            })
+
         for e in json_ld:
             if e.get('@context') == 'http://schema.org':
                 item_type = e.get('@type')
                 if expected_type is not None and expected_type != item_type:
                     return info
-                if item_type == 'TVEpisode':
+                if item_type in ('TVEpisode', 'Episode'):
                     info.update({
                         'episode': unescapeHTML(e.get('name')),
                         'episode_number': int_or_none(e.get('episodeNumber')),
                         'description': unescapeHTML(e.get('description')),
                     })
                     part_of_season = e.get('partOfSeason')
-                    if isinstance(part_of_season, dict) and part_of_season.get('@type') == 'TVSeason':
+                    if isinstance(part_of_season, dict) and part_of_season.get('@type') in ('TVSeason', 'Season', 'CreativeWorkSeason'):
                         info['season_number'] = int_or_none(part_of_season.get('seasonNumber'))
                     part_of_series = e.get('partOfSeries') or e.get('partOfTVSeries')
-                    if isinstance(part_of_series, dict) and part_of_series.get('@type') == 'TVSeries':
+                    if isinstance(part_of_series, dict) and part_of_series.get('@type') in ('TVSeries', 'Series', 'CreativeWorkSeries'):
                         info['series'] = unescapeHTML(part_of_series.get('name'))
                 elif item_type == 'Article':
                     info.update({
@@ -989,18 +1022,11 @@ class InfoExtractor(object):
                         'description': unescapeHTML(e.get('articleBody')),
                     })
                 elif item_type == 'VideoObject':
-                    info.update({
-                        'url': e.get('contentUrl'),
-                        'title': unescapeHTML(e.get('name')),
-                        'description': unescapeHTML(e.get('description')),
-                        'thumbnail': e.get('thumbnailUrl') or e.get('thumbnailURL'),
-                        'duration': parse_duration(e.get('duration')),
-                        'timestamp': unified_timestamp(e.get('uploadDate')),
-                        'filesize': float_or_none(e.get('contentSize')),
-                        'tbr': int_or_none(e.get('bitrate')),
-                        'width': int_or_none(e.get('width')),
-                        'height': int_or_none(e.get('height')),
-                    })
+                    extract_video_object(e)
+                    continue
+                video = e.get('video')
+                if isinstance(video, dict) and video.get('@type') == 'VideoObject':
+                    extract_video_object(video)
                 break
         return dict((k, v) for k, v in info.items() if v is not None)
 
@@ -1292,40 +1318,50 @@ class InfoExtractor(object):
                               entry_protocol='m3u8', preference=None,
                               m3u8_id=None, note=None, errnote=None,
                               fatal=True, live=False):
-
         res = self._download_webpage_handle(
             m3u8_url, video_id,
             note=note or 'Downloading m3u8 information',
             errnote=errnote or 'Failed to download m3u8 information',
             fatal=fatal)
+
         if res is False:
             return []
+
         m3u8_doc, urlh = res
         m3u8_url = urlh.geturl()
 
+        return self._parse_m3u8_formats(
+            m3u8_doc, m3u8_url, ext=ext, entry_protocol=entry_protocol,
+            preference=preference, m3u8_id=m3u8_id, live=live)
+
+    def _parse_m3u8_formats(self, m3u8_doc, m3u8_url, ext=None,
+                            entry_protocol='m3u8', preference=None,
+                            m3u8_id=None, live=False):
         if '#EXT-X-FAXS-CM:' in m3u8_doc:  # Adobe Flash Access
             return []
 
-        formats = [self._m3u8_meta_format(m3u8_url, ext, preference, m3u8_id)]
+        formats = []
 
         format_url = lambda u: (
             u
             if re.match(r'^https?://', u)
             else compat_urlparse.urljoin(m3u8_url, u))
 
-        # We should try extracting formats only from master playlists [1], i.e.
-        # playlists that describe available qualities. On the other hand media
-        # playlists [2] should be returned as is since they contain just the media
-        # without qualities renditions.
+        # References:
+        # 1. https://tools.ietf.org/html/draft-pantos-http-live-streaming-21
+        # 2. https://github.com/rg3/youtube-dl/issues/12211
+
+        # We should try extracting formats only from master playlists [1, 4.3.4],
+        # i.e. playlists that describe available qualities. On the other hand
+        # media playlists [1, 4.3.3] should be returned as is since they contain
+        # just the media without qualities renditions.
         # Fortunately, master playlist can be easily distinguished from media
-        # playlist based on particular tags availability. As of [1, 2] master
-        # playlist tags MUST NOT appear in a media playist and vice versa.
-        # As of [3] #EXT-X-TARGETDURATION tag is REQUIRED for every media playlist
-        # and MUST NOT appear in master playlist thus we can clearly detect media
-        # playlist with this criterion.
-        # 1. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.4
-        # 2. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.3
-        # 3. https://tools.ietf.org/html/draft-pantos-http-live-streaming-17#section-4.3.3.1
+        # playlist based on particular tags availability. As of [1, 4.3.3, 4.3.4]
+        # master playlist tags MUST NOT appear in a media playist and vice versa.
+        # As of [1, 4.3.3.1] #EXT-X-TARGETDURATION tag is REQUIRED for every
+        # media playlist and MUST NOT appear in master playlist thus we can
+        # clearly detect media playlist with this criterion.
+
         if '#EXT-X-TARGETDURATION' in m3u8_doc:  # media playlist, return as is
             return [{
                 'url': m3u8_url,
@@ -1334,52 +1370,72 @@ class InfoExtractor(object):
                 'protocol': entry_protocol,
                 'preference': preference,
             }]
-        audio_in_video_stream = {}
-        last_info = {}
-        last_media = {}
+
+        groups = {}
+        last_stream_inf = {}
+
+        def extract_media(x_media_line):
+            media = parse_m3u8_attributes(x_media_line)
+            # As per [1, 4.3.4.1] TYPE, GROUP-ID and NAME are REQUIRED
+            media_type, group_id, name = media.get('TYPE'), media.get('GROUP-ID'), media.get('NAME')
+            if not (media_type and group_id and name):
+                return
+            groups.setdefault(group_id, []).append(media)
+            if media_type not in ('VIDEO', 'AUDIO'):
+                return
+            media_url = media.get('URI')
+            if media_url:
+                format_id = []
+                for v in (group_id, name):
+                    if v:
+                        format_id.append(v)
+                f = {
+                    'format_id': '-'.join(format_id),
+                    'url': format_url(media_url),
+                    'manifest_url': m3u8_url,
+                    'language': media.get('LANGUAGE'),
+                    'ext': ext,
+                    'protocol': entry_protocol,
+                    'preference': preference,
+                }
+                if media_type == 'AUDIO':
+                    f['vcodec'] = 'none'
+                formats.append(f)
+
+        def build_stream_name():
+            # Despite specification does not mention NAME attribute for
+            # EXT-X-STREAM-INF tag it still sometimes may be present (see [1]
+            # or vidio test in TestInfoExtractor.test_parse_m3u8_formats)
+            # 1. http://www.vidio.com/watch/165683-dj_ambred-booyah-live-2015
+            stream_name = last_stream_inf.get('NAME')
+            if stream_name:
+                return stream_name
+            # If there is no NAME in EXT-X-STREAM-INF it will be obtained
+            # from corresponding rendition group
+            stream_group_id = last_stream_inf.get('VIDEO')
+            if not stream_group_id:
+                return
+            stream_group = groups.get(stream_group_id)
+            if not stream_group:
+                return stream_group_id
+            rendition = stream_group[0]
+            return rendition.get('NAME') or stream_group_id
+
         for line in m3u8_doc.splitlines():
             if line.startswith('#EXT-X-STREAM-INF:'):
-                last_info = parse_m3u8_attributes(line)
+                last_stream_inf = parse_m3u8_attributes(line)
             elif line.startswith('#EXT-X-MEDIA:'):
-                media = parse_m3u8_attributes(line)
-                media_type = media.get('TYPE')
-                if media_type in ('VIDEO', 'AUDIO'):
-                    group_id = media.get('GROUP-ID')
-                    media_url = media.get('URI')
-                    if media_url:
-                        format_id = []
-                        for v in (group_id, media.get('NAME')):
-                            if v:
-                                format_id.append(v)
-                        f = {
-                            'format_id': '-'.join(format_id),
-                            'url': format_url(media_url),
-                            'language': media.get('LANGUAGE'),
-                            'ext': ext,
-                            'protocol': entry_protocol,
-                            'preference': preference,
-                        }
-                        if media_type == 'AUDIO':
-                            f['vcodec'] = 'none'
-                            if group_id and not audio_in_video_stream.get(group_id):
-                                audio_in_video_stream[group_id] = False
-                        formats.append(f)
-                    else:
-                        # When there is no URI in EXT-X-MEDIA let this tag's
-                        # data be used by regular URI lines below
-                        last_media = media
-                        if media_type == 'AUDIO' and group_id:
-                            audio_in_video_stream[group_id] = True
+                extract_media(line)
             elif line.startswith('#') or not line.strip():
                 continue
             else:
-                tbr = int_or_none(last_info.get('AVERAGE-BANDWIDTH') or last_info.get('BANDWIDTH'), scale=1000)
+                tbr = float_or_none(
+                    last_stream_inf.get('AVERAGE-BANDWIDTH') or
+                    last_stream_inf.get('BANDWIDTH'), scale=1000)
                 format_id = []
                 if m3u8_id:
                     format_id.append(m3u8_id)
-                # Despite specification does not mention NAME attribute for
-                # EXT-X-STREAM-INF it still sometimes may be present
-                stream_name = last_info.get('NAME') or last_media.get('NAME')
+                stream_name = build_stream_name()
                 # Bandwidth of live streams may differ over time thus making
                 # format_id unpredictable. So it's better to keep provided
                 # format_id intact.
@@ -1389,14 +1445,14 @@ class InfoExtractor(object):
                 f = {
                     'format_id': '-'.join(format_id),
                     'url': manifest_url,
-                    'manifest_url': manifest_url,
+                    'manifest_url': m3u8_url,
                     'tbr': tbr,
                     'ext': ext,
-                    'fps': float_or_none(last_info.get('FRAME-RATE')),
+                    'fps': float_or_none(last_stream_inf.get('FRAME-RATE')),
                     'protocol': entry_protocol,
                     'preference': preference,
                 }
-                resolution = last_info.get('RESOLUTION')
+                resolution = last_stream_inf.get('RESOLUTION')
                 if resolution:
                     mobj = re.search(r'(?P<width>\d+)[xX](?P<height>\d+)', resolution)
                     if mobj:
@@ -1412,13 +1468,26 @@ class InfoExtractor(object):
                         'vbr': vbr,
                         'abr': abr,
                     })
-                f.update(parse_codecs(last_info.get('CODECS')))
-                if audio_in_video_stream.get(last_info.get('AUDIO')) is False and f['vcodec'] != 'none':
-                    # TODO: update acodec for audio only formats with the same GROUP-ID
-                    f['acodec'] = 'none'
+                codecs = parse_codecs(last_stream_inf.get('CODECS'))
+                f.update(codecs)
+                audio_group_id = last_stream_inf.get('AUDIO')
+                # As per [1, 4.3.4.1.1] any EXT-X-STREAM-INF tag which
+                # references a rendition group MUST have a CODECS attribute.
+                # However, this is not always respected, for example, [2]
+                # contains EXT-X-STREAM-INF tag which references AUDIO
+                # rendition group but does not have CODECS and despite
+                # referencing audio group an audio group, it represents
+                # a complete (with audio and video) format. So, for such cases
+                # we will ignore references to rendition groups and treat them
+                # as complete formats.
+                if audio_group_id and codecs and f.get('vcodec') != 'none':
+                    audio_group = groups.get(audio_group_id)
+                    if audio_group and audio_group[0].get('URI'):
+                        # TODO: update acodec for audio only formats with
+                        # the same GROUP-ID
+                        f['acodec'] = 'none'
                 formats.append(f)
-                last_info = {}
-                last_media = {}
+                last_stream_inf = {}
         return formats
 
     @staticmethod
@@ -1717,7 +1786,7 @@ class InfoExtractor(object):
                     ms_info['timescale'] = int(timescale)
                 segment_duration = source.get('duration')
                 if segment_duration:
-                    ms_info['segment_duration'] = int(segment_duration)
+                    ms_info['segment_duration'] = float(segment_duration)
 
             def extract_Initialization(source):
                 initialization = source.find(_add_ns('Initialization'))
@@ -1768,7 +1837,7 @@ class InfoExtractor(object):
                     if content_type == 'text':
                         # TODO implement WebVTT downloading
                         pass
-                    elif content_type == 'video' or content_type == 'audio':
+                    elif content_type in ('video', 'audio'):
                         base_url = ''
                         for element in (representation, adaptation_set, period, mpd_doc):
                             base_url_e = element.find(_add_ns('BaseURL'))
@@ -1792,7 +1861,7 @@ class InfoExtractor(object):
                             'ext': mimetype2ext(mime_type),
                             'width': int_or_none(representation_attrib.get('width')),
                             'height': int_or_none(representation_attrib.get('height')),
-                            'tbr': int_or_none(bandwidth, 1000),
+                            'tbr': float_or_none(bandwidth, 1000),
                             'asr': int_or_none(representation_attrib.get('audioSamplingRate')),
                             'fps': int_or_none(representation_attrib.get('frameRate')),
                             'language': lang if lang not in ('mul', 'und', 'zxx', 'mis') else None,
@@ -1824,9 +1893,13 @@ class InfoExtractor(object):
                                 'Bandwidth': bandwidth,
                             }
 
+                        def location_key(location):
+                            return 'url' if re.match(r'^https?://', location) else 'path'
+
                         if 'segment_urls' not in representation_ms_info and 'media' in representation_ms_info:
 
                             media_template = prepare_template('media', ('Number', 'Bandwidth', 'Time'))
+                            media_location_key = location_key(media_template)
 
                             # As per [1, 5.3.9.4.4, Table 16, page 55] $Number$ and $Time$
                             # can't be used at the same time
@@ -1836,7 +1909,7 @@ class InfoExtractor(object):
                                     segment_duration = float_or_none(representation_ms_info['segment_duration'], representation_ms_info['timescale'])
                                     representation_ms_info['total_number'] = int(math.ceil(float(period_duration) / segment_duration))
                                 representation_ms_info['fragments'] = [{
-                                    'url': media_template % {
+                                    media_location_key: media_template % {
                                         'Number': segment_number,
                                         'Bandwidth': bandwidth,
                                     },
@@ -1860,7 +1933,7 @@ class InfoExtractor(object):
                                         'Number': segment_number,
                                     }
                                     representation_ms_info['fragments'].append({
-                                        'url': segment_url,
+                                        media_location_key: segment_url,
                                         'duration': float_or_none(segment_d, representation_ms_info['timescale']),
                                     })
 
@@ -1884,8 +1957,9 @@ class InfoExtractor(object):
                             for s in representation_ms_info['s']:
                                 duration = float_or_none(s['d'], timescale)
                                 for r in range(s.get('r', 0) + 1):
+                                    segment_uri = representation_ms_info['segment_urls'][segment_index]
                                     fragments.append({
-                                        'url': representation_ms_info['segment_urls'][segment_index],
+                                        location_key(segment_uri): segment_uri,
                                         'duration': duration,
                                     })
                                     segment_index += 1
@@ -1894,6 +1968,7 @@ class InfoExtractor(object):
                         # No fragments key is present in this case.
                         if 'fragments' in representation_ms_info:
                             f.update({
+                                'fragment_base_url': base_url,
                                 'fragments': [],
                                 'protocol': 'http_dash_segments',
                             })
@@ -1901,10 +1976,8 @@ class InfoExtractor(object):
                                 initialization_url = representation_ms_info['initialization_url']
                                 if not f.get('url'):
                                     f['url'] = initialization_url
-                                f['fragments'].append({'url': initialization_url})
+                                f['fragments'].append({location_key(initialization_url): initialization_url})
                             f['fragments'].extend(representation_ms_info['fragments'])
-                            for fragment in f['fragments']:
-                                fragment['url'] = urljoin(base_url, fragment['url'])
                         try:
                             existing_format = next(
                                 fo for fo in formats
@@ -1933,6 +2006,12 @@ class InfoExtractor(object):
             compat_etree_fromstring(ism.encode('utf-8')), urlh.geturl(), ism_id)
 
     def _parse_ism_formats(self, ism_doc, ism_url, ism_id=None):
+        """
+        Parse formats from ISM manifest.
+        References:
+         1. [MS-SSTR]: Smooth Streaming Protocol,
+            https://msdn.microsoft.com/en-us/library/ff469518.aspx
+        """
         if ism_doc.get('IsLive') == 'TRUE' or ism_doc.find('Protection') is not None:
             return []
 
@@ -1954,8 +2033,11 @@ class InfoExtractor(object):
                     self.report_warning('%s is not a supported codec' % fourcc)
                     continue
                 tbr = int(track.attrib['Bitrate']) // 1000
-                width = int_or_none(track.get('MaxWidth'))
-                height = int_or_none(track.get('MaxHeight'))
+                # [1] does not mention Width and Height attributes. However,
+                # they're often present while MaxWidth and MaxHeight are
+                # missing, so should be used as fallbacks
+                width = int_or_none(track.get('MaxWidth') or track.get('Width'))
+                height = int_or_none(track.get('MaxHeight') or track.get('Height'))
                 sampling_rate = int_or_none(track.get('SamplingRate'))
 
                 track_url_pattern = re.sub(r'{[Bb]itrate}', track.attrib['Bitrate'], url_pattern)
@@ -2033,9 +2115,9 @@ class InfoExtractor(object):
                 return f
             return {}
 
-        def _media_formats(src, cur_media_type):
+        def _media_formats(src, cur_media_type, type_info={}):
             full_url = absolute_url(src)
-            ext = determine_ext(full_url)
+            ext = type_info.get('ext') or determine_ext(full_url)
             if ext == 'm3u8':
                 is_plain_url = False
                 formats = self._extract_m3u8_formats(
@@ -2055,15 +2137,18 @@ class InfoExtractor(object):
             return is_plain_url, formats
 
         entries = []
+        # amp-video and amp-audio are very similar to their HTML5 counterparts
+        # so we wll include them right here (see
+        # https://www.ampproject.org/docs/reference/components/amp-video)
         media_tags = [(media_tag, media_type, '')
                       for media_tag, media_type
-                      in re.findall(r'(?s)(<(video|audio)[^>]*/>)', webpage)]
+                      in re.findall(r'(?s)(<(?:amp-)?(video|audio)[^>]*/>)', webpage)]
         media_tags.extend(re.findall(
             # We only allow video|audio followed by a whitespace or '>'.
             # Allowing more characters may end up in significant slow down (see
             # https://github.com/rg3/youtube-dl/issues/11979, example URL:
             # http://www.porntrex.com/maps/videositemap.xml).
-            r'(?s)(<(?P<tag>video|audio)(?:\s+[^>]*)?>)(.*?)</(?P=tag)>', webpage))
+            r'(?s)(<(?P<tag>(?:amp-)?(?:video|audio))(?:\s+[^>]*)?>)(.*?)</(?P=tag)>', webpage))
         for media_tag, media_type, media_content in media_tags:
             media_info = {
                 'formats': [],
@@ -2081,9 +2166,9 @@ class InfoExtractor(object):
                     src = source_attributes.get('src')
                     if not src:
                         continue
-                    is_plain_url, formats = _media_formats(src, media_type)
+                    f = parse_content_type(source_attributes.get('type'))
+                    is_plain_url, formats = _media_formats(src, media_type, f)
                     if is_plain_url:
-                        f = parse_content_type(source_attributes.get('type'))
                         f.update(formats[0])
                         media_info['formats'].append(f)
                     else:
@@ -2106,7 +2191,7 @@ class InfoExtractor(object):
     def _extract_akamai_formats(self, manifest_url, video_id, hosts={}):
         formats = []
         hdcore_sign = 'hdcore=3.7.0'
-        f4m_url = re.sub(r'(https?://[^/+])/i/', r'\1/z/', manifest_url).replace('/master.m3u8', '/manifest.f4m')
+        f4m_url = re.sub(r'(https?://[^/]+)/i/', r'\1/z/', manifest_url).replace('/master.m3u8', '/manifest.f4m')
         hds_host = hosts.get('hds')
         if hds_host:
             f4m_url = re.sub(r'(https?://)[^/]+', r'\1' + hds_host, f4m_url)
@@ -2128,8 +2213,9 @@ class InfoExtractor(object):
 
     def _extract_wowza_formats(self, url, video_id, m3u8_entry_protocol='m3u8_native', skip_protocols=[]):
         url = re.sub(r'/(?:manifest|playlist|jwplayer)\.(?:m3u8|f4m|mpd|smil)', '', url)
-        url_base = self._search_regex(r'(?:https?|rtmp|rtsp)(://[^?]+)', url, 'format url')
-        http_base_url = 'http' + url_base
+        url_base = self._search_regex(
+            r'(?:(?:https?|rtmp|rtsp):)?(//[^?]+)', url, 'format url')
+        http_base_url = '%s:%s' % ('http', url_base)
         formats = []
         if 'm3u8' not in skip_protocols:
             formats.extend(self._extract_m3u8_formats(
@@ -2163,24 +2249,30 @@ class InfoExtractor(object):
             for protocol in ('rtmp', 'rtsp'):
                 if protocol not in skip_protocols:
                     formats.append({
-                        'url': protocol + url_base,
+                        'url': '%s:%s' % (protocol, url_base),
                         'format_id': protocol,
                         'protocol': protocol,
                     })
         return formats
 
-    @staticmethod
-    def _find_jwplayer_data(webpage):
+    def _find_jwplayer_data(self, webpage, video_id=None, transform_source=js_to_json):
         mobj = re.search(
-            r'jwplayer\((?P<quote>[\'"])[^\'" ]+(?P=quote)\)\.setup\s*\((?P<options>[^)]+)\)',
+            r'(?s)jwplayer\((?P<quote>[\'"])[^\'" ]+(?P=quote)\)(?!</script>).*?\.setup\s*\((?P<options>[^)]+)\)',
             webpage)
         if mobj:
-            return mobj.group('options')
+            try:
+                jwplayer_data = self._parse_json(mobj.group('options'),
+                                                 video_id=video_id,
+                                                 transform_source=transform_source)
+            except ExtractorError:
+                pass
+            else:
+                if isinstance(jwplayer_data, dict):
+                    return jwplayer_data
 
     def _extract_jwplayer_data(self, webpage, video_id, *args, **kwargs):
-        jwplayer_data = self._parse_json(
-            self._find_jwplayer_data(webpage), video_id,
-            transform_source=js_to_json)
+        jwplayer_data = self._find_jwplayer_data(
+            webpage, video_id, transform_source=js_to_json)
         return self._parse_jwplayer_data(
             jwplayer_data, video_id, *args, **kwargs)
 
@@ -2215,6 +2307,8 @@ class InfoExtractor(object):
             tracks = video_data.get('tracks')
             if tracks and isinstance(tracks, list):
                 for track in tracks:
+                    if not isinstance(track, dict):
+                        continue
                     if track.get('kind') != 'captions':
                         continue
                     track_url = urljoin(base_url, track.get('file'))
@@ -2241,11 +2335,19 @@ class InfoExtractor(object):
 
     def _parse_jwplayer_formats(self, jwplayer_sources_data, video_id=None,
                                 m3u8_id=None, mpd_id=None, rtmp_params=None, base_url=None):
+        urls = []
         formats = []
         for source in jwplayer_sources_data:
-            source_url = self._proto_relative_url(source['file'])
+            if not isinstance(source, dict):
+                continue
+            source_url = self._proto_relative_url(source.get('file'))
+            if not source_url:
+                continue
             if base_url:
                 source_url = compat_urlparse.urljoin(base_url, source_url)
+            if source_url in urls:
+                continue
+            urls.append(source_url)
             source_type = source.get('type') or ''
             ext = mimetype2ext(source_type) or determine_ext(source_url)
             if source_type == 'hls' or ext == 'm3u8':