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[common] Add _merge_subtitles()

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This commit is contained in:
Yen Chi Hsuan 2015-08-21 01:37:07 +08:00
parent 03bc7237ad
commit 912e0b7e46
1 changed files with 20 additions and 0 deletions
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20
youtube_dl/extractor/common.py
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@ -1279,6 +1279,26 @@ class InfoExtractor(object):
def _get_subtitles(self, *args, **kwargs):
raise NotImplementedError("This method must be implemented by subclasses")
@staticmethod
def _merge_subtitle_items(subtitle_list1, subtitle_list2):
""" Merge subtitle items for one language. Items with duplicated URLs
will be dropped. """
list1_urls = set([item['url'] for item in subtitle_list1])
ret = list(subtitle_list1)
ret.extend([item for item in subtitle_list2 if item['url'] not in list1_urls])
return ret
@classmethod
def _merge_subtitles(kls, subtitle_dict1, subtitle_dict2):
""" Merge two subtitle dictionaries, language by language. """
print(subtitle_dict1)
print(subtitle_dict2)
ret = dict(subtitle_dict1)
for lang in subtitle_dict2:
ret[lang] = kls._merge_subtitle_items(subtitle_dict1.get(lang, []), subtitle_dict2[lang])
print(ret)
return ret
def extract_automatic_captions(self, *args, **kwargs):
if (self._downloader.params.get('writeautomaticsub', False) or
self._downloader.params.get('listsubtitles')):