Merge branch 'subtitles-rework'

[youtube-dl] / youtube_dl / extractor / common.py

diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py
index 3300734bc14838ded747c1a093293a0419d3d71a..87fce9cd89425150baff91577199f706db2a1e81 100644 (file)
--- a/youtube_dl/extractor/common.py
+++ b/youtube_dl/extractor/common.py
@@ -12,13 +12,17 @@ import sys
 import time
 import xml.etree.ElementTree
 
 import time
 import xml.etree.ElementTree
 

-from ..utils import (
+from ..compat import (
+    compat_cookiejar,
+    compat_HTTPError,

     compat_http_client,
     compat_urllib_error,
     compat_urllib_parse_urlparse,
     compat_urlparse,
     compat_str,
     compat_http_client,
     compat_urllib_error,
     compat_urllib_parse_urlparse,
     compat_urlparse,
     compat_str,

-
+)
+from ..utils import (
+    age_restricted,

     clean_html,
     compiled_regex_type,
     ExtractorError,
     clean_html,
     compiled_regex_type,
     ExtractorError,


@@ -38,11 +42,15 @@ class InfoExtractor(object):
     information about the video (or videos) the URL refers to. This
     information includes the real video URL, the video title, author and
     others. The information is stored in a dictionary which is then
     information about the video (or videos) the URL refers to. This
     information includes the real video URL, the video title, author and
     others. The information is stored in a dictionary which is then

-    passed to the FileDownloader. The FileDownloader processes this
+    passed to the YoutubeDL. The YoutubeDL processes this

     information possibly downloading the video to the file system, among
     other possible outcomes.
 
     information possibly downloading the video to the file system, among
     other possible outcomes.
 

-    The dictionaries must include the following fields:
+    The type field determines the the type of the result.
+    By far the most common value (and the default if _type is missing) is
+    "video", which indicates a single video.
+
+    For a video, the dictionaries must include the following fields:

 
     id:             Video identifier.
     title:          Video title, unescaped.
 
     id:             Video identifier.
     title:          Video title, unescaped.


@@ -80,12 +88,20 @@ class InfoExtractor(object):
                     * player_url SWF Player URL (used for rtmpdump).
                     * protocol   The protocol that will be used for the actual
                                  download, lower-case.
                     * player_url SWF Player URL (used for rtmpdump).
                     * protocol   The protocol that will be used for the actual
                                  download, lower-case.

-                                 "http", "https", "rtsp", "rtmp", "m3u8" or so.
+                                 "http", "https", "rtsp", "rtmp", "rtmpe",
+                                 "m3u8", or "m3u8_native".

                     * preference Order number of this format. If this field is
                                  present and not None, the formats get sorted
                                  by this field, regardless of all other values.
                                  -1 for default (order by other properties),
                                  -2 or smaller for less than default.
                     * preference Order number of this format. If this field is
                                  present and not None, the formats get sorted
                                  by this field, regardless of all other values.
                                  -1 for default (order by other properties),
                                  -2 or smaller for less than default.

+                                 < -1000 to hide the format (if there is
+                                    another one which is strictly better)
+                    * language_preference  Is this in the correct requested
+                                 language?
+                                 10 if it's what the URL is about,
+                                 -1 for default (don't know),
+                                 -10 otherwise, other values reserved for now.

                     * quality    Order number of the video quality of this
                                  format, irrespective of the file format.
                                  -1 for default (order by other properties),
                     * quality    Order number of the video quality of this
                                  format, irrespective of the file format.
                                  -1 for default (order by other properties),


@@ -94,12 +110,17 @@ class InfoExtractor(object):
                                   (quality takes higher priority)
                                  -1 for default (order by other properties),
                                  -2 or smaller for less than default.
                                   (quality takes higher priority)
                                  -1 for default (order by other properties),
                                  -2 or smaller for less than default.

-                    * http_referer  HTTP Referer header value to set.

                     * http_method  HTTP method to use for the download.
                     * http_headers  A dictionary of additional HTTP headers
                                  to add to the request.
                     * http_post_data  Additional data to send with a POST
                                  request.
                     * http_method  HTTP method to use for the download.
                     * http_headers  A dictionary of additional HTTP headers
                                  to add to the request.
                     * http_post_data  Additional data to send with a POST
                                  request.

+                    * stretched_ratio  If given and not 1, indicates that the
+                                 video's pixels are not square.
+                                 width : height ratio as float.
+                    * no_resume  The server does not support resuming the
+                                 (HTTP or RTMP) download. Boolean.
+

     url:            Final video URL.
     ext:            Video filename extension.
     format:         The video format, defaults to ext (used for --get-format)
     url:            Final video URL.
     ext:            Video filename extension.
     format:         The video format, defaults to ext (used for --get-format)


@@ -107,31 +128,53 @@ class InfoExtractor(object):
 
     The following fields are optional:
 
 
     The following fields are optional:
 

+    alt_title:      A secondary title of the video.

     display_id      An alternative identifier for the video, not necessarily
                     unique, but available before title. Typically, id is
                     something like "4234987", title "Dancing naked mole rats",
                     and display_id "dancing-naked-mole-rats"
     thumbnails:     A list of dictionaries, with the following entries:
     display_id      An alternative identifier for the video, not necessarily
                     unique, but available before title. Typically, id is
                     something like "4234987", title "Dancing naked mole rats",
                     and display_id "dancing-naked-mole-rats"
     thumbnails:     A list of dictionaries, with the following entries:

+                        * "id" (optional, string) - Thumbnail format ID

                         * "url"
                         * "url"

+                        * "preference" (optional, int) - quality of the image

                         * "width" (optional, int)
                         * "height" (optional, int)
                         * "resolution" (optional, string "{width}x{height"},
                                         deprecated)
     thumbnail:      Full URL to a video thumbnail image.
                         * "width" (optional, int)
                         * "height" (optional, int)
                         * "resolution" (optional, string "{width}x{height"},
                                         deprecated)
     thumbnail:      Full URL to a video thumbnail image.

-    description:    One-line video description.
+    description:    Full video description.

     uploader:       Full name of the video uploader.
     uploader:       Full name of the video uploader.

+    creator:        The main artist who created the video.

     timestamp:      UNIX timestamp of the moment the video became available.
     upload_date:    Video upload date (YYYYMMDD).
                     If not explicitly set, calculated from timestamp.
     uploader_id:    Nickname or id of the video uploader.
     location:       Physical location where the video was filmed.
     timestamp:      UNIX timestamp of the moment the video became available.
     upload_date:    Video upload date (YYYYMMDD).
                     If not explicitly set, calculated from timestamp.
     uploader_id:    Nickname or id of the video uploader.
     location:       Physical location where the video was filmed.

-    subtitles:      The subtitle file contents as a dictionary in the format
-                    {language: subtitles}.
+    subtitles:      The available subtitles as a dictionary in the format
+                    {language: subformats}. "subformats" is a list sorted from
+                    lower to higher preference, each element is a dictionary
+                    with the "ext" entry and one of:
+                        * "data": The subtitles file contents
+                        * "url": A url pointing to the subtitles file
+    automatic_captions: Like 'subtitles', used by the YoutubeIE for
+                    automatically generated captions

     duration:       Length of the video in seconds, as an integer.
     view_count:     How many users have watched the video on the platform.
     like_count:     Number of positive ratings of the video
     dislike_count:  Number of negative ratings of the video
     duration:       Length of the video in seconds, as an integer.
     view_count:     How many users have watched the video on the platform.
     like_count:     Number of positive ratings of the video
     dislike_count:  Number of negative ratings of the video

+    average_rating: Average rating give by users, the scale used depends on the webpage

     comment_count:  Number of comments on the video
     comment_count:  Number of comments on the video

+    comments:       A list of comments, each with one or more of the following
+                    properties (all but one of text or html optional):
+                        * "author" - human-readable name of the comment author
+                        * "author_id" - user ID of the comment author
+                        * "id" - Comment ID
+                        * "html" - Comment as HTML
+                        * "text" - Plain text of the comment
+                        * "timestamp" - UNIX timestamp of comment
+                        * "parent" - ID of the comment this one is replying to.
+                                     Set to "root" to indicate that this is a
+                                     comment to the original video.

     age_limit:      Age restriction for the video, as an integer (years)
     webpage_url:    The url to the video webpage, if given to youtube-dl it
                     should allow to get the same result again. (It will be set
     age_limit:      Age restriction for the video, as an integer (years)
     webpage_url:    The url to the video webpage, if given to youtube-dl it
                     should allow to get the same result again. (It will be set


@@ -145,6 +188,39 @@ class InfoExtractor(object):
 
     Unless mentioned otherwise, None is equivalent to absence of information.
 
 
     Unless mentioned otherwise, None is equivalent to absence of information.
 

+
+    _type "playlist" indicates multiple videos.
+    There must be a key "entries", which is a list, an iterable, or a PagedList
+    object, each element of which is a valid dictionary by this specification.
+
+    Additionally, playlists can have "title" and "id" attributes with the same
+    semantics as videos (see above).
+
+
+    _type "multi_video" indicates that there are multiple videos that
+    form a single show, for examples multiple acts of an opera or TV episode.
+    It must have an entries key like a playlist and contain all the keys
+    required for a video at the same time.
+
+
+    _type "url" indicates that the video must be extracted from another
+    location, possibly by a different extractor. Its only required key is:
+    "url" - the next URL to extract.
+    The key "ie_key" can be set to the class name (minus the trailing "IE",
+    e.g. "Youtube") if the extractor class is known in advance.
+    Additionally, the dictionary may have any properties of the resolved entity
+    known in advance, for example "title" if the title of the referred video is
+    known ahead of time.
+
+
+    _type "url_transparent" entities have the same specification as "url", but
+    indicate that the given additional information is more precise than the one
+    associated with the resolved URL.
+    This is useful when a site employs a video service that hosts the video and
+    its technical metadata, but that video service does not embed a useful
+    title, description etc.
+
+

     Subclasses of this one should re-define the _real_initialize() and
     _real_extract() methods and define a _VALID_URL regexp.
     Probably, they should also be added to the list of extractors.
     Subclasses of this one should re-define the _real_initialize() and
     _real_extract() methods and define a _VALID_URL regexp.
     Probably, they should also be added to the list of extractors.


@@ -194,8 +270,15 @@ class InfoExtractor(object):
 
     def extract(self, url):
         """Extracts URL information and returns it in list of dicts."""
 
     def extract(self, url):
         """Extracts URL information and returns it in list of dicts."""

-        self.initialize()
-        return self._real_extract(url)
+        try:
+            self.initialize()
+            return self._real_extract(url)
+        except ExtractorError:
+            raise
+        except compat_http_client.IncompleteRead as e:
+            raise ExtractorError('A network error has occured.', cause=e, expected=True)
+        except (KeyError, StopIteration) as e:
+            raise ExtractorError('An extractor error has occured.', cause=e)

 
     def set_downloader(self, downloader):
         """Sets the downloader for this IE."""
 
     def set_downloader(self, downloader):
         """Sets the downloader for this IE."""


@@ -254,9 +337,11 @@ class InfoExtractor(object):
         content = self._webpage_read_content(urlh, url_or_request, video_id, note, errnote, fatal)
         return (content, urlh)
 
         content = self._webpage_read_content(urlh, url_or_request, video_id, note, errnote, fatal)
         return (content, urlh)
 

-    def _webpage_read_content(self, urlh, url_or_request, video_id, note=None, errnote=None, fatal=True):
+    def _webpage_read_content(self, urlh, url_or_request, video_id, note=None, errnote=None, fatal=True, prefix=None):

         content_type = urlh.headers.get('Content-Type', '')
         webpage_bytes = urlh.read()
         content_type = urlh.headers.get('Content-Type', '')
         webpage_bytes = urlh.read()

+        if prefix is not None:
+            webpage_bytes = prefix + webpage_bytes

         m = re.match(r'[a-zA-Z0-9_.-]+/[a-zA-Z0-9_.-]+\s*;\s*charset=(.+)', content_type)
         if m:
             encoding = m.group(1)
         m = re.match(r'[a-zA-Z0-9_.-]+/[a-zA-Z0-9_.-]+\s*;\s*charset=(.+)', content_type)
         if m:
             encoding = m.group(1)


@@ -312,12 +397,32 @@ class InfoExtractor(object):
             if blocked_iframe:
                 msg += ' Visit %s for more details' % blocked_iframe
             raise ExtractorError(msg, expected=True)
             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)

 
         return content
 
 
         return content
 

-    def _download_webpage(self, url_or_request, video_id, note=None, errnote=None, fatal=True):
+    def _download_webpage(self, url_or_request, video_id, note=None, errnote=None, fatal=True, tries=1, timeout=5):

         """ Returns the data of the page as a string """
         """ Returns the data of the page as a string """

-        res = self._download_webpage_handle(url_or_request, video_id, note, errnote, fatal)
+        success = False
+        try_count = 0
+        while success is False:
+            try:
+                res = self._download_webpage_handle(url_or_request, video_id, note, errnote, fatal)
+                success = True
+            except compat_http_client.IncompleteRead as e:
+                try_count += 1
+                if try_count >= tries:
+                    raise e
+                self._sleep(timeout, video_id)

         if res is False:
             return res
         else:
         if res is False:
             return res
         else:


@@ -345,6 +450,10 @@ class InfoExtractor(object):
             url_or_request, video_id, note, errnote, fatal=fatal)
         if (not fatal) and json_string is False:
             return None
             url_or_request, video_id, note, errnote, fatal=fatal)
         if (not fatal) and json_string is False:
             return None

+        return self._parse_json(
+            json_string, video_id, transform_source=transform_source, fatal=fatal)
+
+    def _parse_json(self, json_string, video_id, transform_source=None, fatal=True):

         if transform_source:
             json_string = transform_source(json_string)
         try:
         if transform_source:
             json_string = transform_source(json_string)
         try:


@@ -381,19 +490,20 @@ class InfoExtractor(object):
         """Report attempt to log in."""
         self.to_screen('Logging in')
 
         """Report attempt to log in."""
         self.to_screen('Logging in')
 

-    #Methods for following #608
+    # Methods for following #608

     @staticmethod
     def url_result(url, ie=None, video_id=None):
         """Returns a url that points to a page that should be processed"""
     @staticmethod
     def url_result(url, ie=None, video_id=None):
         """Returns a url that points to a page that should be processed"""

-        #TODO: ie should be the class used for getting the info
+        # TODO: ie should be the class used for getting the info

         video_info = {'_type': 'url',
                       'url': url,
                       'ie_key': ie}
         if video_id is not None:
             video_info['id'] = video_id
         return video_info
         video_info = {'_type': 'url',
                       'url': url,
                       'ie_key': ie}
         if video_id is not None:
             video_info['id'] = video_id
         return video_info

+

     @staticmethod
     @staticmethod

-    def playlist_result(entries, playlist_id=None, playlist_title=None):
+    def playlist_result(entries, playlist_id=None, playlist_title=None, playlist_description=None):

         """Returns a playlist"""
         video_info = {'_type': 'playlist',
                       'entries': entries}
         """Returns a playlist"""
         video_info = {'_type': 'playlist',
                       'entries': entries}


@@ -401,9 +511,11 @@ class InfoExtractor(object):
             video_info['id'] = playlist_id
         if playlist_title:
             video_info['title'] = playlist_title
             video_info['id'] = playlist_id
         if playlist_title:
             video_info['title'] = playlist_title

+        if playlist_description:
+            video_info['description'] = playlist_description

         return video_info
 
         return video_info
 

-    def _search_regex(self, pattern, string, name, default=_NO_DEFAULT, fatal=True, flags=0):
+    def _search_regex(self, pattern, string, name, default=_NO_DEFAULT, fatal=True, flags=0, group=None):

         """
         Perform a regex search on the given string, using a single or a list of
         patterns returning the first matching group.
         """
         Perform a regex search on the given string, using a single or a list of
         patterns returning the first matching group.


@@ -418,28 +530,31 @@ class InfoExtractor(object):
                 if mobj:
                     break
 
                 if mobj:
                     break
 

-        if os.name != 'nt' and sys.stderr.isatty():
+        if not self._downloader.params.get('no_color') and os.name != 'nt' and sys.stderr.isatty():

             _name = '\033[0;34m%s\033[0m' % name
         else:
             _name = name
 
         if mobj:
             _name = '\033[0;34m%s\033[0m' % name
         else:
             _name = name
 
         if mobj:

-            # return the first matching group
-            return next(g for g in mobj.groups() if g is not None)
+            if group is None:
+                # return the first matching group
+                return next(g for g in mobj.groups() if g is not None)
+            else:
+                return mobj.group(group)

         elif default is not _NO_DEFAULT:
             return default
         elif fatal:
             raise RegexNotFoundError('Unable to extract %s' % _name)
         else:
             self._downloader.report_warning('unable to extract %s; '
         elif default is not _NO_DEFAULT:
             return default
         elif fatal:
             raise RegexNotFoundError('Unable to extract %s' % _name)
         else:
             self._downloader.report_warning('unable to extract %s; '

-                'please report this issue on http://yt-dl.org/bug' % _name)
+                                            'please report this issue on http://yt-dl.org/bug' % _name)

             return None
 
             return None
 

-    def _html_search_regex(self, pattern, string, name, default=_NO_DEFAULT, fatal=True, flags=0):
+    def _html_search_regex(self, pattern, string, name, default=_NO_DEFAULT, fatal=True, flags=0, group=None):

         """
         Like _search_regex, but strips HTML tags and unescapes entities.
         """
         """
         Like _search_regex, but strips HTML tags and unescapes entities.
         """

-        res = self._search_regex(pattern, string, name, default, fatal, flags)
+        res = self._search_regex(pattern, string, name, default, fatal, flags, group)

         if res:
             return clean_html(res).strip()
         else:
         if res:
             return clean_html(res).strip()
         else:


@@ -472,7 +587,7 @@ class InfoExtractor(object):
                     raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
             except (IOError, netrc.NetrcParseError) as err:
                 self._downloader.report_warning('parsing .netrc: %s' % compat_str(err))
                     raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
             except (IOError, netrc.NetrcParseError) as err:
                 self._downloader.report_warning('parsing .netrc: %s' % compat_str(err))

-        
+

         return (username, password)
 
     def _get_tfa_info(self):
         return (username, password)
 
     def _get_tfa_info(self):


@@ -532,10 +647,10 @@ class InfoExtractor(object):
         if display_name is None:
             display_name = name
         return self._html_search_regex(
         if display_name is None:
             display_name = name
         return self._html_search_regex(

-            r'''(?ix)<meta
-                    (?=[^>]+(?:itemprop|name|property)=["\']?%s["\']?)
-                    [^>]+content=["\']([^"\']+)["\']''' % re.escape(name),
-            html, display_name, fatal=fatal, **kwargs)
+            r'''(?isx)<meta
+                    (?=[^>]+(?:itemprop|name|property)=(["\']?)%s\1)
+                    [^>]+?content=(["\'])(?P<content>.*?)\2''' % re.escape(name),
+            html, display_name, fatal=fatal, group='content', **kwargs)

 
     def _dc_search_uploader(self, html):
         return self._html_search_meta('dc.creator', html, 'uploader')
 
     def _dc_search_uploader(self, html):
         return self._html_search_meta('dc.creator', html, 'uploader')


@@ -564,9 +679,24 @@ class InfoExtractor(object):
         }
         return RATING_TABLE.get(rating.lower(), None)
 
         }
         return RATING_TABLE.get(rating.lower(), None)
 

+    def _family_friendly_search(self, html):
+        # See http://schema.org/VideoObject
+        family_friendly = self._html_search_meta('isFamilyFriendly', html)
+
+        if not family_friendly:
+            return None
+
+        RATING_TABLE = {
+            '1': 0,
+            'true': 0,
+            '0': 18,
+            'false': 18,
+        }
+        return RATING_TABLE.get(family_friendly.lower(), None)
+

     def _twitter_search_player(self, html):
         return self._html_search_meta('twitter:player', html,
     def _twitter_search_player(self, html):
         return self._html_search_meta('twitter:player', html,

-            'twitter card player')
+                                      'twitter card player')

 
     def _sort_formats(self, formats):
         if not formats:
 
     def _sort_formats(self, formats):
         if not formats:


@@ -611,21 +741,42 @@ class InfoExtractor(object):
 
             return (
                 preference,
 
             return (
                 preference,

+                f.get('language_preference') if f.get('language_preference') is not None else -1,

                 f.get('quality') if f.get('quality') is not None else -1,
                 f.get('quality') if f.get('quality') is not None else -1,

+                f.get('tbr') if f.get('tbr') is not None else -1,
+                f.get('filesize') if f.get('filesize') is not None else -1,
+                f.get('vbr') if f.get('vbr') is not None else -1,

                 f.get('height') if f.get('height') is not None else -1,
                 f.get('width') if f.get('width') is not None else -1,
                 ext_preference,
                 f.get('height') if f.get('height') is not None else -1,
                 f.get('width') if f.get('width') is not None else -1,
                 ext_preference,

-                f.get('tbr') if f.get('tbr') is not None else -1,
-                f.get('vbr') if f.get('vbr') is not None else -1,

                 f.get('abr') if f.get('abr') is not None else -1,
                 audio_ext_preference,
                 f.get('abr') if f.get('abr') is not None else -1,
                 audio_ext_preference,

-                f.get('filesize') if f.get('filesize') is not None else -1,
+                f.get('fps') if f.get('fps') is not None else -1,

                 f.get('filesize_approx') if f.get('filesize_approx') is not None else -1,
                 f.get('source_preference') if f.get('source_preference') is not None else -1,
                 f.get('format_id'),
             )
         formats.sort(key=_formats_key)
 
                 f.get('filesize_approx') if f.get('filesize_approx') is not None else -1,
                 f.get('source_preference') if f.get('source_preference') is not None else -1,
                 f.get('format_id'),
             )
         formats.sort(key=_formats_key)
 

+    def _check_formats(self, formats, video_id):
+        if formats:
+            formats[:] = filter(
+                lambda f: self._is_valid_url(
+                    f['url'], video_id,
+                    item='%s video format' % f.get('format_id') if f.get('format_id') else 'video'),
+                formats)
+
+    def _is_valid_url(self, url, video_id, item='video'):
+        try:
+            self._request_webpage(url, video_id, 'Checking %s URL' % item)
+            return True
+        except ExtractorError as e:
+            if isinstance(e.cause, compat_HTTPError):
+                self.report_warning(
+                    '%s URL is invalid, skipping' % item, video_id)
+                return False
+            raise
+

     def http_scheme(self):
         """ Either "http:" or "https:", depending on the user's preferences """
         return (
     def http_scheme(self):
         """ Either "http:" or "https:", depending on the user's preferences """
         return (


@@ -650,37 +801,45 @@ class InfoExtractor(object):
         self.to_screen(msg)
         time.sleep(timeout)
 
         self.to_screen(msg)
         time.sleep(timeout)
 

-    def _extract_f4m_formats(self, manifest_url, video_id):
+    def _extract_f4m_formats(self, manifest_url, video_id, preference=None, f4m_id=None):

         manifest = self._download_xml(
             manifest_url, video_id, 'Downloading f4m manifest',
             'Unable to download f4m manifest')
 
         formats = []
         manifest = self._download_xml(
             manifest_url, video_id, 'Downloading f4m manifest',
             'Unable to download f4m manifest')
 
         formats = []

+        manifest_version = '1.0'

         media_nodes = manifest.findall('{http://ns.adobe.com/f4m/1.0}media')
         media_nodes = manifest.findall('{http://ns.adobe.com/f4m/1.0}media')

+        if not media_nodes:
+            manifest_version = '2.0'
+            media_nodes = manifest.findall('{http://ns.adobe.com/f4m/2.0}media')

         for i, media_el in enumerate(media_nodes):
         for i, media_el in enumerate(media_nodes):

+            if manifest_version == '2.0':
+                manifest_url = ('/'.join(manifest_url.split('/')[:-1]) + '/' +
+                                (media_el.attrib.get('href') or media_el.attrib.get('url')))

             tbr = int_or_none(media_el.attrib.get('bitrate'))
             tbr = int_or_none(media_el.attrib.get('bitrate'))

-            format_id = 'f4m-%d' % (i if tbr is None else tbr)

             formats.append({
             formats.append({

-                'format_id': format_id,
+                'format_id': '-'.join(filter(None, [f4m_id, 'f4m-%d' % (i if tbr is None else tbr)])),

                 'url': manifest_url,
                 'ext': 'flv',
                 'tbr': tbr,
                 'width': int_or_none(media_el.attrib.get('width')),
                 'height': int_or_none(media_el.attrib.get('height')),
                 'url': manifest_url,
                 'ext': 'flv',
                 'tbr': tbr,
                 'width': int_or_none(media_el.attrib.get('width')),
                 'height': int_or_none(media_el.attrib.get('height')),

+                'preference': preference,

             })
         self._sort_formats(formats)
 
         return formats
 
     def _extract_m3u8_formats(self, m3u8_url, video_id, ext=None,
             })
         self._sort_formats(formats)
 
         return formats
 
     def _extract_m3u8_formats(self, m3u8_url, video_id, ext=None,

-                              entry_protocol='m3u8', preference=None):
+                              entry_protocol='m3u8', preference=None,
+                              m3u8_id=None):

 
         formats = [{
 
         formats = [{

-            'format_id': 'm3u8-meta',
+            'format_id': '-'.join(filter(None, [m3u8_id, 'm3u8-meta'])),

             'url': m3u8_url,
             'ext': ext,
             'protocol': 'm3u8',
             'url': m3u8_url,
             'ext': ext,
             'protocol': 'm3u8',

-            'preference': -1,
+            'preference': preference - 1 if preference else -1,

             'resolution': 'multiple',
             'format_note': 'Quality selection URL',
         }]
             'resolution': 'multiple',
             'format_note': 'Quality selection URL',
         }]


@@ -695,6 +854,7 @@ class InfoExtractor(object):
             note='Downloading m3u8 information',
             errnote='Failed to download m3u8 information')
         last_info = None
             note='Downloading m3u8 information',
             errnote='Failed to download m3u8 information')
         last_info = None

+        last_media = None

         kv_rex = re.compile(
             r'(?P<key>[a-zA-Z_-]+)=(?P<val>"[^"]+"|[^",]+)(?:,|$)')
         for line in m3u8_doc.splitlines():
         kv_rex = re.compile(
             r'(?P<key>[a-zA-Z_-]+)=(?P<val>"[^"]+"|[^",]+)(?:,|$)')
         for line in m3u8_doc.splitlines():


@@ -705,6 +865,13 @@ class InfoExtractor(object):
                     if v.startswith('"'):
                         v = v[1:-1]
                     last_info[m.group('key')] = v
                     if v.startswith('"'):
                         v = v[1:-1]
                     last_info[m.group('key')] = v

+            elif line.startswith('#EXT-X-MEDIA:'):
+                last_media = {}
+                for m in kv_rex.finditer(line):
+                    v = m.group('val')
+                    if v.startswith('"'):
+                        v = v[1:-1]
+                    last_media[m.group('key')] = v

             elif line.startswith('#') or not line.strip():
                 continue
             else:
             elif line.startswith('#') or not line.strip():
                 continue
             else:


@@ -712,9 +879,8 @@ class InfoExtractor(object):
                     formats.append({'url': format_url(line)})
                     continue
                 tbr = int_or_none(last_info.get('BANDWIDTH'), scale=1000)
                     formats.append({'url': format_url(line)})
                     continue
                 tbr = int_or_none(last_info.get('BANDWIDTH'), scale=1000)

-

                 f = {
                 f = {

-                    'format_id': 'm3u8-%d' % (tbr if tbr else len(formats)),
+                    'format_id': '-'.join(filter(None, [m3u8_id, 'm3u8-%d' % (tbr if tbr else len(formats))])),

                     'url': format_url(line.strip()),
                     'tbr': tbr,
                     'ext': ext,
                     'url': format_url(line.strip()),
                     'tbr': tbr,
                     'ext': ext,


@@ -734,11 +900,60 @@ class InfoExtractor(object):
                     width_str, height_str = resolution.split('x')
                     f['width'] = int(width_str)
                     f['height'] = int(height_str)
                     width_str, height_str = resolution.split('x')
                     f['width'] = int(width_str)
                     f['height'] = int(height_str)

+                if last_media is not None:
+                    f['m3u8_media'] = last_media
+                    last_media = None

                 formats.append(f)
                 last_info = {}
         self._sort_formats(formats)
         return formats
 
                 formats.append(f)
                 last_info = {}
         self._sort_formats(formats)
         return formats
 

+    # TODO: improve extraction
+    def _extract_smil_formats(self, smil_url, video_id, fatal=True):
+        smil = self._download_xml(
+            smil_url, video_id, 'Downloading SMIL file',
+            'Unable to download SMIL file', fatal=fatal)
+        if smil is False:
+            assert not fatal
+            return []
+
+        base = smil.find('./head/meta').get('base')
+
+        formats = []
+        rtmp_count = 0
+        for video in smil.findall('./body/switch/video'):
+            src = video.get('src')
+            if not src:
+                continue
+            bitrate = int_or_none(video.get('system-bitrate') or video.get('systemBitrate'), 1000)
+            width = int_or_none(video.get('width'))
+            height = int_or_none(video.get('height'))
+            proto = video.get('proto')
+            if not proto:
+                if base:
+                    if base.startswith('rtmp'):
+                        proto = 'rtmp'
+                    elif base.startswith('http'):
+                        proto = 'http'
+            ext = video.get('ext')
+            if proto == 'm3u8':
+                formats.extend(self._extract_m3u8_formats(src, video_id, ext))
+            elif proto == 'rtmp':
+                rtmp_count += 1
+                streamer = video.get('streamer') or base
+                formats.append({
+                    'url': streamer,
+                    'play_path': src,
+                    'ext': 'flv',
+                    'format_id': 'rtmp-%d' % (rtmp_count if bitrate is None else bitrate),
+                    'tbr': bitrate,
+                    'width': width,
+                    'height': height,
+                })
+        self._sort_formats(formats)
+
+        return formats
+

     def _live_title(self, name):
         """ Generate the title for a live video """
         now = datetime.datetime.now()
     def _live_title(self, name):
         """ Generate the title for a live video """
         now = datetime.datetime.now()


@@ -767,6 +982,59 @@ class InfoExtractor(object):
                 self._downloader.report_warning(msg)
         return res
 
                 self._downloader.report_warning(msg)
         return res
 

+    def _set_cookie(self, domain, name, value, expire_time=None):
+        cookie = compat_cookiejar.Cookie(
+            0, name, value, None, None, domain, None,
+            None, '/', True, False, expire_time, '', None, None, None)
+        self._downloader.cookiejar.set_cookie(cookie)
+
+    def get_testcases(self, include_onlymatching=False):
+        t = getattr(self, '_TEST', None)
+        if t:
+            assert not hasattr(self, '_TESTS'), \
+                '%s has _TEST and _TESTS' % type(self).__name__
+            tests = [t]
+        else:
+            tests = getattr(self, '_TESTS', [])
+        for t in tests:
+            if not include_onlymatching and t.get('only_matching', False):
+                continue
+            t['name'] = type(self).__name__[:-len('IE')]
+            yield t
+
+    def is_suitable(self, age_limit):
+        """ Test whether the extractor is generally suitable for the given
+        age limit (i.e. pornographic sites are not, all others usually are) """
+
+        any_restricted = False
+        for tc in self.get_testcases(include_onlymatching=False):
+            if 'playlist' in tc:
+                tc = tc['playlist'][0]
+            is_restricted = age_restricted(
+                tc.get('info_dict', {}).get('age_limit'), age_limit)
+            if not is_restricted:
+                return True
+            any_restricted = any_restricted or is_restricted
+        return not any_restricted
+
+    def extract_subtitles(self, *args, **kwargs):
+        if (self._downloader.params.get('writesubtitles', False) or
+                self._downloader.params.get('listsubtitles')):
+            return self._get_subtitles(*args, **kwargs)
+        return {}
+
+    def _get_subtitles(self, *args, **kwargs):
+        raise NotImplementedError("This method must be implemented by subclasses")
+
+    def extract_automatic_captions(self, *args, **kwargs):
+        if (self._downloader.params.get('writeautomaticsub', False) or
+                self._downloader.params.get('listsubtitles')):
+            return self._get_automatic_captions(*args, **kwargs)
+        return {}
+
+    def _get_automatic_captions(self, *args, **kwargs):
+        raise NotImplementedError("This method must be implemented by subclasses")
+

 
 class SearchInfoExtractor(InfoExtractor):
     """
 
 class SearchInfoExtractor(InfoExtractor):
     """