Preferred start position.
Corresponds to the #EXT-X-START tag.
#EXT-X-START
RFC 8216 §4.3.5.2
Time offset in seconds.
Positive = from beginning, negative = from end.
Optional
Whether to precisely seek to the TIME-OFFSET.
false
Preferred start position.
Corresponds to the
#EXT-X-STARTtag.See
RFC 8216 §4.3.5.2