<?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>