<?xml version="1.0"?>
<policy type="or" name="SLUB Policy for MKV/linear PCM, retrodigitized audio"
  license="CC-BY-SA-4.0+">
  <description>SLUB related policy to test that the audio file is suitable for archiving purposes.
    This checks if a MKV/linear PCM fulfills the needs for Audio retrodigitization: - Container
    format is Matroska with error detection (CRC) - Audio format is PCM (unfortunately it can not
    contain error detection) or FLAC (it has CRC by design) This policy is based on: - Example MKV
    FFV1 digitization policy.xml - Video file is MKV + FFV1-Intra + PCM or FLAC with CRC32
    everywhere.xml If there are any policy violations or suggestions, please send an email to
    langzeitarchiv@slub-dresden.de </description>
  <policy type="and" name="MKV, FFV1 Intra, PCM/FLAC, error detection">
    <policy type="and" name="Container">
      <policy type="or" name="FileExtension">
        <rule name="General/FileExtension is mkv" value="FileExtension" tracktype="General"
          occurrence="*" operator="=">mkv</rule>
        <rule name="General/FileExtension is mka" value="FileExtension" tracktype="General"
          occurrence="*" operator="=">mka</rule>
      </policy>
      <rule name="Container is MKV" value="Format" tracktype="General" occurrence="*" operator="="
        >Matroska</rule>
      <rule name="Unique ID is present" value="UniqueID" tracktype="General" occurrence="*"/>
      <rule name="Container uses error detection" value="extra/ErrorDetectionType"
        tracktype="General" occurrence="*" operator="=">Per level 1</rule>
      <rule name="General/Format_Version is 4" value="Format_Version" tracktype="General"
        occurrence="*" operator="=">4</rule>

    </policy>

    <policy type="and" name="Audio">
      <rule name="General/AudioCount is 1" value="AudioCount" tracktype="General" occurrence="*"
        operator="=">1</rule>
      <policy type="or" name="Audio is PCM or FLAC">
        <rule name="Audio is PCM" value="Format" tracktype="Audio" occurrence="*" operator="="
          >PCM</rule>
        <rule name="Audio is FLAC" value="Format" tracktype="Audio" occurrence="*" operator="="
          >FLAC</rule>
      </policy>
      <policy name="Audio is multiple of 48kHz" type="or">
        <rule name="Audio is 48000 Hz" value="SamplingRate" tracktype="Audio" occurrence="*"
          operator="=">48000</rule>
        <rule name="Audio is 96000 Hz" value="SamplingRate" tracktype="Audio" occurrence="*"
          operator="=">96000</rule>
      </policy>
      <policy type="or" name="Audio is Stereo or Mono">
        <rule name="Audio is mono" value="Channels" tracktype="Audio" occurrence="*" operator="="
          >1</rule>
        <rule name="Audio is stereo" value="Channels" tracktype="Audio" occurrence="*" operator="="
          >2</rule>
      </policy>
      <rule name="Bit Depth is 24" value="BitDepth" tracktype="Audio" occurrence="*" operator="="
        >24</rule>
    </policy>
  </policy>
</policy>