v0.2.1

Highlights

• Every livesim2 feature has been checked, and the false positives this found are fixed. Valid
  streams no longer get errors or warnings for utc:direct timing, thumbnails, audio priming in
  edit lists, multi-Period live, low-latency subtitles, Content Steering, or
  @availabilityTimeOffset without low latency.
• Remote (XLink) Periods and Annex I URL parameters, which dashcheck does not support, are now
  reported as info instead of failing with MPD-SEGINFO-NONE or HTTP-INIT errors.

Added

• MPD-XLINK-UNRESOLVED (info) for remote Periods, which dashcheck does not resolve. They are
  no longer MPD-SEGINFO-NONE errors.
• ADDR-UNSUPPORTED (info) for Representations that need Annex I URL parameters
  (urn:mpeg:dash:urlparam:2014 or 2016). Their segments are no longer fetched.

Fixed

• MPD-UPDATE-PUBLISHTIME ignores the time in a urn:mpeg:dash:utc:direct:2014 UTCTiming,
  which changes with each response.
• CLOCK-SKEW allows for whole seconds from utc:direct, http-iso and http-xsdate time sources.
• MPD-CODECS no longer warns about images such as thumbnail tiles, which have no codecs parameter.
• SEG-EPT and SEG-DURATION leave out media that the edit list cuts, such as audio priming. With an
  edit list, an S@t equal to the tfdt is SEG-EPT, not SEG-EPT-CTO.
• LIVE-STALE measures a Period that has ended at its end. Earlier Periods of a multi-Period live
  MPD are no longer reported as stale.
• MPD-LL-MIMETYPE accepts application/mp4 for text, the media type of CMAF text tracks.
• MPD-XSD accepts a space-separated list in ContentSteering@defaultServiceLocation, as
  ISO/IEC 23009-1 and ETSI TS 103 998 define it.
• @availabilityTimeOffset alone no longer turns on the low-latency rules. Without the
  low-latency profile, @availabilityTimeComplete false does.