diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py index 2bbbf8f4d4..a878550c2c 100644 --- a/youtube_dl/extractor/common.py +++ b/youtube_dl/extractor/common.py @@ -1920,7 +1920,7 @@ class InfoExtractor(object): # can't be used at the same time if '%(Number' in media_template and 's' not in representation_ms_info: segment_duration = None - if 'total_number' not in representation_ms_info and 'segment_duration': + if 'total_number' not in representation_ms_info and 'segment_duration' in representation_ms_info: segment_duration = float_or_none(representation_ms_info['segment_duration'], representation_ms_info['timescale']) representation_ms_info['total_number'] = int(math.ceil(float(period_duration) / segment_duration)) representation_ms_info['fragments'] = [{