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@ -48,7 +48,7 @@ class InfoExtractor(object): |
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uploader_id: Nickname or id of the video uploader. |
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location: Physical location of the video. |
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player_url: SWF Player URL (used for rtmpdump). |
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subtitles: The .srt file contents. |
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subtitles: The subtitle file contents. |
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urlhandle: [internal] The urlHandle to be used to download the file, |
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like returned by urllib.request.urlopen |
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@ -224,7 +224,16 @@ class YoutubeIE(InfoExtractor): |
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def report_video_subtitles_download(self, video_id): |
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"""Report attempt to download video info webpage.""" |
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self._downloader.to_screen(u'[youtube] %s: Downloading video subtitles' % video_id) |
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self._downloader.to_screen(u'[youtube] %s: Checking available subtitles' % video_id) |
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def report_video_subtitles_request(self, video_id, sub_lang, format): |
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"""Report attempt to download video info webpage.""" |
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self._downloader.to_screen(u'[youtube] %s: Downloading video subtitles for %s.%s' % (video_id, sub_lang, format)) |
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def report_video_subtitles_available(self, video_id, sub_lang_list): |
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"""Report available subtitles.""" |
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sub_lang = ",".join(list(sub_lang_list.keys())) |
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self._downloader.to_screen(u'[youtube] %s: Available subtitles for video: %s' % (video_id, sub_lang)) |
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def report_information_extraction(self, video_id): |
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"""Report attempt to extract video information.""" |
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@ -238,55 +247,63 @@ class YoutubeIE(InfoExtractor): |
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"""Indicate the download will use the RTMP protocol.""" |
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self._downloader.to_screen(u'[youtube] RTMP download detected') |
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def _closed_captions_xml_to_srt(self, xml_string): |
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srt = '' |
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texts = re.findall(r'<text start="([\d\.]+)"( dur="([\d\.]+)")?>([^<]+)</text>', xml_string, re.MULTILINE) |
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# TODO parse xml instead of regex |
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for n, (start, dur_tag, dur, caption) in enumerate(texts): |
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if not dur: dur = '4' |
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start = float(start) |
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end = start + float(dur) |
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start = "%02i:%02i:%02i,%03i" %(start/(60*60), start/60%60, start%60, start%1*1000) |
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end = "%02i:%02i:%02i,%03i" %(end/(60*60), end/60%60, end%60, end%1*1000) |
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caption = unescapeHTML(caption) |
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caption = unescapeHTML(caption) # double cycle, intentional |
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srt += str(n+1) + '\n' |
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srt += start + ' --> ' + end + '\n' |
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srt += caption + '\n\n' |
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return srt |
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def _extract_subtitles(self, video_id): |
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def _get_available_subtitles(self, video_id): |
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self.report_video_subtitles_download(video_id) |
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request = compat_urllib_request.Request('http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id) |
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try: |
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srt_list = compat_urllib_request.urlopen(request).read().decode('utf-8') |
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sub_list = compat_urllib_request.urlopen(request).read().decode('utf-8') |
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except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err: |
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return (u'WARNING: unable to download video subtitles: %s' % compat_str(err), None) |
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srt_lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', srt_list) |
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srt_lang_list = dict((l[1], l[0]) for l in srt_lang_list) |
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if not srt_lang_list: |
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return (u'WARNING: video has no closed captions', None) |
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if self._downloader.params.get('subtitleslang', False): |
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srt_lang = self._downloader.params.get('subtitleslang') |
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elif 'en' in srt_lang_list: |
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srt_lang = 'en' |
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else: |
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srt_lang = list(srt_lang_list.keys())[0] |
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if not srt_lang in srt_lang_list: |
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return (u'WARNING: no closed captions found in the specified language', None) |
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sub_lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', sub_list) |
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sub_lang_list = dict((l[1], l[0]) for l in sub_lang_list) |
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if not sub_lang_list: |
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return (u'WARNING: video doesn\'t have subtitles', None) |
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return sub_lang_list |
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def _list_available_subtitles(self, video_id): |
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sub_lang_list = self._get_available_subtitles(video_id) |
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self.report_video_subtitles_available(video_id, sub_lang_list) |
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def _request_subtitle(self, sub_lang, sub_name, video_id, format): |
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self.report_video_subtitles_request(video_id, sub_lang, format) |
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params = compat_urllib_parse.urlencode({ |
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'lang': srt_lang, |
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'name': srt_lang_list[srt_lang].encode('utf-8'), |
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'lang': sub_lang, |
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'name': sub_name, |
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'v': video_id, |
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'fmt': format, |
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}) |
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url = 'http://www.youtube.com/api/timedtext?' + params |
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try: |
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srt_xml = compat_urllib_request.urlopen(url).read().decode('utf-8') |
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sub = compat_urllib_request.urlopen(url).read().decode('utf-8') |
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except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err: |
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return (u'WARNING: unable to download video subtitles: %s' % compat_str(err), None) |
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if not srt_xml: |
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if not sub: |
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return (u'WARNING: Did not fetch video subtitles', None) |
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return (None, self._closed_captions_xml_to_srt(srt_xml)) |
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return (None, sub_lang, sub) |
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def _extract_subtitle(self, video_id): |
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sub_lang_list = self._get_available_subtitles(video_id) |
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sub_format = self._downloader.params.get('subtitlesformat') |
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if self._downloader.params.get('subtitleslang', False): |
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sub_lang = self._downloader.params.get('subtitleslang') |
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elif 'en' in sub_lang_list: |
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sub_lang = 'en' |
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else: |
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sub_lang = list(sub_lang_list.keys())[0] |
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if not sub_lang in sub_lang_list: |
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return (u'WARNING: no closed captions found in the specified language "%s"' % sub_lang, None) |
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subtitle = self._request_subtitle(sub_lang, sub_lang_list[sub_lang].encode('utf-8'), video_id, sub_format) |
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return [subtitle] |
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def _extract_all_subtitles(self, video_id): |
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sub_lang_list = self._get_available_subtitles(video_id) |
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sub_format = self._downloader.params.get('subtitlesformat') |
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subtitles = [] |
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for sub_lang in sub_lang_list: |
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subtitle = self._request_subtitle(sub_lang, sub_lang_list[sub_lang].encode('utf-8'), video_id, sub_format) |
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subtitles.append(subtitle) |
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return subtitles |
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def _print_formats(self, formats): |
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print('Available formats:') |
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@ -507,12 +524,26 @@ class YoutubeIE(InfoExtractor): |
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else: |
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video_description = '' |
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# closed captions |
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# subtitles |
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video_subtitles = None |
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if self._downloader.params.get('writesubtitles', False): |
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(srt_error, video_subtitles) = self._extract_subtitles(video_id) |
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if srt_error: |
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self._downloader.trouble(srt_error) |
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video_subtitles = self._extract_subtitle(video_id) |
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if video_subtitles: |
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(sub_error, sub_lang, sub) = video_subtitles[0] |
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if sub_error: |
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self._downloader.trouble(sub_error) |
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if self._downloader.params.get('allsubtitles', False): |
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video_subtitles = self._extract_all_subtitles(video_id) |
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for video_subtitle in video_subtitles: |
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(sub_error, sub_lang, sub) = video_subtitle |
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if sub_error: |
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self._downloader.trouble(sub_error) |
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if self._downloader.params.get('listsubtitles', False): |
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sub_lang_list = self._list_available_subtitles(video_id) |
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return |
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if 'length_seconds' not in video_info: |
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self._downloader.trouble(u'WARNING: unable to extract video duration') |
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