mbr_videos = xpath_element(metadata, 'MBRVideos')
formats = []
for mbr_video in mbr_videos.findall('MBRVideo'):
stream_name = xpath_text(mbr_video, 'streamName')
if stream_name:
mbr_videos = xpath_element(metadata, 'MBRVideos')
formats = []
for mbr_video in mbr_videos.findall('MBRVideo'):
stream_name = xpath_text(mbr_video, 'streamName')
if stream_name: