Dominik Schmidt created TIKA-5051:
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Summary: MP4 metadata is lost when a box larger than 2 GB comes
before moov
Key: TIKA-5051
URL: https://issues.apache.org/jira/browse/TIKA-5051
Project: Tika
Issue Type: Bug
Components: parser
Reporter: Dominik Schmidt
{{TikaMp4Reader}} stops the box walk with "Box size too large." as soon as any
box declares more than {{Integer.MAX_VALUE}} bytes, before it decides whether
the box is read or only skipped.
Boxes Tika does not read, like {{mdat}}, are skipped by a stream advance and
never allocated, so their size does not matter. But a file with an {{mdat}}
over 2 GB in front of {{moov}} (common for camera recordings, which write
{{moov}} at the end) loses all metadata after it: no duration, dimensions,
dates, location or track data.
The size check only needs to apply to boxes Tika actually reads into memory.
Those are already capped by {{maxBoxSize}} (100 MB by default).
metadata-extractor's {{Mp4Reader}}, which {{TikaMp4Reader}} was copied from
(TIKA-4812), has the same check.
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