for format_id, format_url in data.items():
if not isinstance(format_url, compat_str) or not format_url.startswith(('http', '//', 'rtmp')):
continue
for format_id, format_url in data.items():
if not isinstance(format_url, compat_str) or not format_url.startswith(('http', '//', 'rtmp')):
continue