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https://github.com/yt-dlp/yt-dlp.git
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Merge pull request #699 by @iemejia
Removed innecesary function to convert subtitles, improved use of the youtube api
This commit is contained in:
Filippo Valsorda
commit
5cb3c0b319
@ -29,6 +29,7 @@
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"simulate": false,
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"skip_download": false,
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"subtitleslang": null,
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"subtitlesformat": "srt",
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"test": true,
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"updatetime": true,
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"usenetrc": false,
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@ -36,5 +37,8 @@
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"verbose": true,
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"writedescription": false,
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"writeinfojson": true,
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"writesubtitles": false
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}
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"writesubtitles": false,
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"onlysubtitles": false,
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"allsubtitles": false,
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"listssubtitles": false
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}
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@ -38,20 +38,63 @@ def download(self, x):
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md5 = lambda s: hashlib.md5(s.encode('utf-8')).hexdigest()
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class TestYoutubeSubtitles(unittest.TestCase):
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def setUp(self):
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DL = FakeDownloader()
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DL.params['allsubtitles'] = False
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DL.params['writesubtitles'] = False
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DL.params['subtitlesformat'] = 'srt'
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DL.params['listsubtitles'] = False
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def test_youtube_no_subtitles(self):
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DL = FakeDownloader()
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DL.params['writesubtitles'] = False
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IE = YoutubeIE(DL)
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info_dict = IE.extract('QRS8MkLhQmM')
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subtitles = info_dict[0]['subtitles']
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self.assertEqual(subtitles, None)
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def test_youtube_subtitles(self):
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DL = FakeDownloader()
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DL.params['writesubtitles'] = True
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IE = YoutubeIE(DL)
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info_dict = IE.extract('QRS8MkLhQmM')
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self.assertEqual(md5(info_dict[0]['subtitles']), 'c3228550d59116f3c29fba370b55d033')
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sub = info_dict[0]['subtitles'][0]
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self.assertEqual(md5(sub[2]), '4cd9278a35ba2305f47354ee13472260')
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def test_youtube_subtitles_it(self):
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DL = FakeDownloader()
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DL.params['writesubtitles'] = True
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DL.params['subtitleslang'] = 'it'
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IE = YoutubeIE(DL)
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info_dict = IE.extract('QRS8MkLhQmM')
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self.assertEqual(md5(info_dict[0]['subtitles']), '132a88a0daf8e1520f393eb58f1f646a')
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sub = info_dict[0]['subtitles'][0]
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self.assertEqual(md5(sub[2]), '164a51f16f260476a05b50fe4c2f161d')
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def test_youtube_onlysubtitles(self):
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DL = FakeDownloader()
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DL.params['writesubtitles'] = True
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DL.params['onlysubtitles'] = True
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IE = YoutubeIE(DL)
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info_dict = IE.extract('QRS8MkLhQmM')
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sub = info_dict[0]['subtitles'][0]
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self.assertEqual(md5(sub[2]), '4cd9278a35ba2305f47354ee13472260')
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def test_youtube_allsubtitles(self):
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DL = FakeDownloader()
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DL.params['allsubtitles'] = True
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IE = YoutubeIE(DL)
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info_dict = IE.extract('QRS8MkLhQmM')
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subtitles = info_dict[0]['subtitles']
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self.assertEqual(len(subtitles), 12)
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def test_youtube_subtitles_format(self):
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DL = FakeDownloader()
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DL.params['writesubtitles'] = True
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DL.params['subtitlesformat'] = 'sbv'
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IE = YoutubeIE(DL)
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info_dict = IE.extract('QRS8MkLhQmM')
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sub = info_dict[0]['subtitles'][0]
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self.assertEqual(md5(sub[2]), '13aeaa0c245a8bed9a451cb643e3ad8b')
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def test_youtube_list_subtitles(self):
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DL = FakeDownloader()
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DL.params['listsubtitles'] = True
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IE = YoutubeIE(DL)
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info_dict = IE.extract('QRS8MkLhQmM')
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self.assertEqual(info_dict, None)
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if __name__ == '__main__':
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unittest.main()
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@ -78,7 +78,11 @@ class FileDownloader(object):
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updatetime: Use the Last-modified header to set output file timestamps.
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writedescription: Write the video description to a .description file
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writeinfojson: Write the video description to a .info.json file
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writesubtitles: Write the video subtitles to a .srt file
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writesubtitles: Write the video subtitles to a file
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onlysubtitles: Downloads only the subtitles of the video
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allsubtitles: Downloads all the subtitles of the video
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listsubtitles: Lists all available subtitles for the video
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subtitlesformat: Subtitle format [sbv/srt] (default=srt)
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subtitleslang: Language of the subtitles to download
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test: Download only first bytes to test the downloader.
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keepvideo: Keep the video file after post-processing
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@ -301,9 +305,9 @@ def report_writedescription(self, descfn):
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""" Report that the description file is being written """
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self.to_screen(u'[info] Writing video description to: ' + descfn)
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def report_writesubtitles(self, srtfn):
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def report_writesubtitles(self, sub_filename):
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""" Report that the subtitles file is being written """
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self.to_screen(u'[info] Writing video subtitles to: ' + srtfn)
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self.to_screen(u'[info] Writing video subtitles to: ' + sub_filename)
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def report_writeinfojson(self, infofn):
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""" Report that the metadata file has been written """
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@ -456,14 +460,35 @@ def process_info(self, info_dict):
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if self.params.get('writesubtitles', False) and 'subtitles' in info_dict and info_dict['subtitles']:
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# subtitles download errors are already managed as troubles in relevant IE
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# that way it will silently go on when used with unsupporting IE
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subtitle = info_dict['subtitles'][0]
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(sub_error, sub_lang, sub) = subtitle
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sub_format = self.params.get('subtitlesformat')
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try:
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srtfn = filename.rsplit('.', 1)[0] + u'.srt'
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self.report_writesubtitles(srtfn)
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with io.open(encodeFilename(srtfn), 'w', encoding='utf-8') as srtfile:
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srtfile.write(info_dict['subtitles'])
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sub_filename = filename.rsplit('.', 1)[0] + u'.' + sub_lang + u'.' + sub_format
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self.report_writesubtitles(sub_filename)
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with io.open(encodeFilename(sub_filename), 'w', encoding='utf-8') as subfile:
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subfile.write(sub)
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except (OSError, IOError):
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self.trouble(u'ERROR: Cannot write subtitles file ' + descfn)
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return
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if self.params.get('onlysubtitles', False):
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return
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if self.params.get('allsubtitles', False) and 'subtitles' in info_dict and info_dict['subtitles']:
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subtitles = info_dict['subtitles']
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sub_format = self.params.get('subtitlesformat')
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for subtitle in subtitles:
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(sub_error, sub_lang, sub) = subtitle
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try:
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sub_filename = filename.rsplit('.', 1)[0] + u'.' + sub_lang + u'.' + sub_format
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self.report_writesubtitles(sub_filename)
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with io.open(encodeFilename(sub_filename), 'w', encoding='utf-8') as subfile:
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subfile.write(sub)
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except (OSError, IOError):
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self.trouble(u'ERROR: Cannot write subtitles file ' + descfn)
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return
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if self.params.get('onlysubtitles', False):
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return
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if self.params.get('writeinfojson', False):
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infofn = filename + u'.info.json'
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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 @@ def report_video_info_webpage_download(self, video_id):
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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 @@ def report_rtmp_download(self):
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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 @@ def _real_extract(self, url):
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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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@ -173,12 +173,24 @@ def _find_term_columns():
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action='store', dest='format_limit', metavar='FORMAT', help='highest quality format to download')
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video_format.add_option('-F', '--list-formats',
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action='store_true', dest='listformats', help='list all available formats (currently youtube only)')
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video_format.add_option('--write-srt',
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video_format.add_option('--write-sub', '--write-srt',
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action='store_true', dest='writesubtitles',
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help='write video closed captions to a .srt file (currently youtube only)', default=False)
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video_format.add_option('--srt-lang',
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help='write subtitle file (currently youtube only)', default=False)
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video_format.add_option('--only-sub',
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action='store_true', dest='onlysubtitles',
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help='downloads only the subtitles (no video)', default=False)
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video_format.add_option('--all-subs',
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action='store_true', dest='allsubtitles',
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help='downloads all the available subtitles of the video (currently youtube only)', default=False)
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video_format.add_option('--list-subs',
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action='store_true', dest='listsubtitles',
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help='lists all available subtitles for the video (currently youtube only)', default=False)
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video_format.add_option('--sub-format',
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action='store', dest='subtitlesformat', metavar='LANG',
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help='subtitle format [srt/sbv] (default=srt) (currently youtube only)', default='srt')
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video_format.add_option('--sub-lang', '--srt-lang',
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action='store', dest='subtitleslang', metavar='LANG',
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help='language of the closed captions to download (optional) use IETF language tags like \'en\'')
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help='language of the subtitles to download (optional) use IETF language tags like \'en\'')
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verbosity.add_option('-q', '--quiet',
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action='store_true', dest='quiet', help='activates quiet mode', default=False)
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@ -458,6 +470,10 @@ def _real_main():
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'writedescription': opts.writedescription,
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'writeinfojson': opts.writeinfojson,
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'writesubtitles': opts.writesubtitles,
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'onlysubtitles': opts.onlysubtitles,
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'allsubtitles': opts.allsubtitles,
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'listsubtitles': opts.listsubtitles,
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'subtitlesformat': opts.subtitlesformat,
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'subtitleslang': opts.subtitleslang,
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'matchtitle': decodeOption(opts.matchtitle),
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'rejecttitle': decodeOption(opts.rejecttitle),
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