Adding some basic automated validations

[kieranjol]

It's worth performing a zip validation on .docx files. It's also worth decoding AV files with ffmpeg and catching errors - something like

 ffmpeg -v error -i corrupto.mov -f null -
[h264 @ 0x7fc9ac0b5200] Invalid NAL unit size (-1 > 6032).
[h264 @ 0x7fc9ac0b5200] Error splitting the input into NAL units.
Error while decoding stream #0:0: Invalid data found when processing input
[h264 @ 0x7fc9ac03ac00] Invalid NAL unit size (-1 > 20477).
[h264 @ 0x7fc9ac03ac00] Error splitting the input into NAL units.
Error while decoding stream #0:0: Invalid data found when processing input

And of course mediaconch - but possibly JHOVE as well for docs? That TIFF validator thingy too?

[kieranjol]

How did I leave out the exiftool check for chunks of binary zeroes. Perhaps there's some sort of python bitwise operator that can scan for anomalies that exiftool can't.

[kieranjol]

Might as well roll the filename character/ length check in here too.a sort of pre-ingest validation prior to sipcreator. Maybe it's the first thing sipcreator does?

[mcampos-quinn]

👀