[extractor/common] Add ability to specify custom field preference for _sort_formats
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1 changed files with 4 additions and 1 deletions
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@ -708,7 +708,7 @@ class InfoExtractor(object):
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return self._html_search_meta('twitter:player', html,
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'twitter card player')
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def _sort_formats(self, formats):
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def _sort_formats(self, formats, field_preference=None):
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if not formats:
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raise ExtractorError('No video formats found')
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@ -718,6 +718,9 @@ class InfoExtractor(object):
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if not f.get('ext') and 'url' in f:
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f['ext'] = determine_ext(f['url'])
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if isinstance(field_preference, (list, tuple)):
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return tuple(f.get(field) if f.get(field) is not None else -1 for field in field_preference)
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preference = f.get('preference')
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if preference is None:
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proto = f.get('protocol')
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