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Added new option '--list-subs' to show the available subtitle languages

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This commit is contained in:
Ismael Mejia
2013-02-22 04:50:05 +01:00
committed by Filippo Valsorda
parent 9e62bc4439
commit 2a4093eaf3
5 changed files with 33 additions and 8 deletions
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26
youtube_dl/InfoExtractors.py
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@@ -214,11 +214,16 @@ 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, lang):
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 lang: %s' % (video_id,lang))
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."""
@@ -233,6 +238,7 @@ class YoutubeIE(InfoExtractor):
self._downloader.to_screen(u'[youtube] RTMP download detected')
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:
sub_list = compat_urllib_request.urlopen(request).read().decode('utf-8')
@@ -241,11 +247,15 @@ class YoutubeIE(InfoExtractor):
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 has no closed captions', None)
return (u'WARNING: video doesn\'t have download', 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)
self.report_video_subtitles_request(video_id, sub_lang, format)
params = compat_urllib_parse.urlencode({
'lang': sub_lang,
'name': sub_name,
@@ -262,7 +272,6 @@ class YoutubeIE(InfoExtractor):
return (None, sub_lang, sub)
def _extract_subtitle(self, video_id):
self.report_video_subtitles_download(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):
@@ -278,7 +287,6 @@ class YoutubeIE(InfoExtractor):
return [subtitle]
def _extract_all_subtitles(self, video_id):
self.report_video_subtitles_download(video_id)
sub_lang_list = self._get_available_subtitles(video_id)
sub_format = self._downloader.params.get('subtitlesformat')
subtitles = []
@@ -523,6 +531,10 @@ class YoutubeIE(InfoExtractor):
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')
video_duration = ''