diff options
Diffstat (limited to 'youtube_dl/InfoExtractors.py')
| -rwxr-xr-x | youtube_dl/InfoExtractors.py | 115 |
1 files changed, 73 insertions, 42 deletions
diff --git a/youtube_dl/InfoExtractors.py b/youtube_dl/InfoExtractors.py index 44b4c4376..14fd644a2 100755 --- a/youtube_dl/InfoExtractors.py +++ b/youtube_dl/InfoExtractors.py @@ -48,7 +48,7 @@ class InfoExtractor(object): uploader_id: Nickname or id of the video uploader. location: Physical location of the video. player_url: SWF Player URL (used for rtmpdump). - subtitles: The .srt file contents. + subtitles: The subtitle file contents. urlhandle: [internal] The urlHandle to be used to download the file, like returned by urllib.request.urlopen @@ -224,7 +224,16 @@ class YoutubeIE(InfoExtractor): def report_video_subtitles_download(self, video_id): """Report attempt to download video info webpage.""" - self._downloader.to_screen(u'[youtube] %s: Downloading video subtitles' % video_id) + self._downloader.to_screen(u'[youtube] %s: Checking available subtitles' % video_id) + + def report_video_subtitles_request(self, video_id, sub_lang, format): + """Report attempt to download video info webpage.""" + self._downloader.to_screen(u'[youtube] %s: Downloading video subtitles for %s.%s' % (video_id, sub_lang, format)) + + def report_video_subtitles_available(self, video_id, sub_lang_list): + """Report available subtitles.""" + sub_lang = ",".join(list(sub_lang_list.keys())) + self._downloader.to_screen(u'[youtube] %s: Available subtitles for video: %s' % (video_id, sub_lang)) def report_information_extraction(self, video_id): """Report attempt to extract video information.""" @@ -238,55 +247,63 @@ class YoutubeIE(InfoExtractor): """Indicate the download will use the RTMP protocol.""" self._downloader.to_screen(u'[youtube] RTMP download detected') - def _closed_captions_xml_to_srt(self, xml_string): - srt = '' - texts = re.findall(r'<text start="([\d\.]+)"( dur="([\d\.]+)")?>([^<]+)</text>', xml_string, re.MULTILINE) - # TODO parse xml instead of regex - for n, (start, dur_tag, dur, caption) in enumerate(texts): - if not dur: dur = '4' - start = float(start) - end = start + float(dur) - start = "%02i:%02i:%02i,%03i" %(start/(60*60), start/60%60, start%60, start%1*1000) - end = "%02i:%02i:%02i,%03i" %(end/(60*60), end/60%60, end%60, end%1*1000) - caption = unescapeHTML(caption) - caption = unescapeHTML(caption) # double cycle, intentional - srt += str(n+1) + '\n' - srt += start + ' --> ' + end + '\n' - srt += caption + '\n\n' - return srt - - def _extract_subtitles(self, video_id): + def _get_available_subtitles(self, video_id): self.report_video_subtitles_download(video_id) request = compat_urllib_request.Request('http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id) try: - srt_list = compat_urllib_request.urlopen(request).read().decode('utf-8') + sub_list = compat_urllib_request.urlopen(request).read().decode('utf-8') except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err: return (u'WARNING: unable to download video subtitles: %s' % compat_str(err), None) - srt_lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', srt_list) - srt_lang_list = dict((l[1], l[0]) for l in srt_lang_list) - if not srt_lang_list: - return (u'WARNING: video has no closed captions', None) - if self._downloader.params.get('subtitleslang', False): - srt_lang = self._downloader.params.get('subtitleslang') - elif 'en' in srt_lang_list: - srt_lang = 'en' - else: - srt_lang = list(srt_lang_list.keys())[0] - if not srt_lang in srt_lang_list: - return (u'WARNING: no closed captions found in the specified language', None) + sub_lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', sub_list) + sub_lang_list = dict((l[1], l[0]) for l in sub_lang_list) + if not sub_lang_list: + return (u'WARNING: video doesn\'t have subtitles', None) + return sub_lang_list + + def _list_available_subtitles(self, video_id): + sub_lang_list = self._get_available_subtitles(video_id) + self.report_video_subtitles_available(video_id, sub_lang_list) + + def _request_subtitle(self, sub_lang, sub_name, video_id, format): + self.report_video_subtitles_request(video_id, sub_lang, format) params = compat_urllib_parse.urlencode({ - 'lang': srt_lang, - 'name': srt_lang_list[srt_lang].encode('utf-8'), + 'lang': sub_lang, + 'name': sub_name, 'v': video_id, + 'fmt': format, }) url = 'http://www.youtube.com/api/timedtext?' + params try: - srt_xml = compat_urllib_request.urlopen(url).read().decode('utf-8') + sub = compat_urllib_request.urlopen(url).read().decode('utf-8') except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err: return (u'WARNING: unable to download video subtitles: %s' % compat_str(err), None) - if not srt_xml: + if not sub: return (u'WARNING: Did not fetch video subtitles', None) - return (None, self._closed_captions_xml_to_srt(srt_xml)) + return (None, sub_lang, sub) + + def _extract_subtitle(self, video_id): + sub_lang_list = self._get_available_subtitles(video_id) + sub_format = self._downloader.params.get('subtitlesformat') + if self._downloader.params.get('subtitleslang', False): + sub_lang = self._downloader.params.get('subtitleslang') + elif 'en' in sub_lang_list: + sub_lang = 'en' + else: + sub_lang = list(sub_lang_list.keys())[0] + if not sub_lang in sub_lang_list: + return (u'WARNING: no closed captions found in the specified language "%s"' % sub_lang, None) + + subtitle = self._request_subtitle(sub_lang, sub_lang_list[sub_lang].encode('utf-8'), video_id, sub_format) + return [subtitle] + + def _extract_all_subtitles(self, video_id): + sub_lang_list = self._get_available_subtitles(video_id) + sub_format = self._downloader.params.get('subtitlesformat') + subtitles = [] + for sub_lang in sub_lang_list: + subtitle = self._request_subtitle(sub_lang, sub_lang_list[sub_lang].encode('utf-8'), video_id, sub_format) + subtitles.append(subtitle) + return subtitles def _print_formats(self, formats): print('Available formats:') @@ -507,12 +524,26 @@ class YoutubeIE(InfoExtractor): else: video_description = '' - # closed captions + # subtitles video_subtitles = None + if self._downloader.params.get('writesubtitles', False): - (srt_error, video_subtitles) = self._extract_subtitles(video_id) - if srt_error: - self._downloader.trouble(srt_error) + video_subtitles = self._extract_subtitle(video_id) + if video_subtitles: + (sub_error, sub_lang, sub) = video_subtitles[0] + if sub_error: + self._downloader.trouble(sub_error) + + if self._downloader.params.get('allsubtitles', False): + video_subtitles = self._extract_all_subtitles(video_id) + for video_subtitle in video_subtitles: + (sub_error, sub_lang, sub) = video_subtitle + if sub_error: + self._downloader.trouble(sub_error) + + if self._downloader.params.get('listsubtitles', False): + sub_lang_list = self._list_available_subtitles(video_id) + return if 'length_seconds' not in video_info: self._downloader.trouble(u'WARNING: unable to extract video duration') |