.. meta::
  :description lang=en: SCTE-35, splice point, MPD validation
  :keywords: guidelines, implementation, MPD, DASH, DVB, SCTE 35

.. |validator| replace:: *Validator*
.. _validator: https://validator.unified-streaming.com
.. _dashschema: https://github.com/MPEGGroup/DASHSchema

SCTE-35 in MPD splice point validation
======================================

|validator|_ implements checks to assert splice points align with segment boundaries
The validation is quite simple urn:scte:scte35:2014:xml+bin events 
are checked for their event times and these are compared to segment boundaries in the MPD. 
Non audio frames must align with splices, and audio frames must align within 100 ms. 
This is based on the recommendations in DVB-TA. Strict recommendations based on DVB-TA 
and/or SCTE are not implemented (yet).

.. contents:: Table of Contents
  :local:
  :depth: 1



Must Fix Timescale
------------------
Event Timescale is zero will lead to a must Fix, as this does not enable signaling splices 

Must Fix Audio Segment
----------------------
Audio segments may be 100 ms off from the splice, otherwise 
a must fix error is reaised

Must Fix Video and other Segment
--------------------------------
Video and other segments raise a must fix error when 
a splice point does not align with a segment boundary