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https://issues.apache.org/jira/browse/TIKA-5036?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18139134#comment-18139134
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ASF GitHub Bot commented on TIKA-5036:
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dschmidt commented on PR #3540:
URL: https://github.com/apache/tika/pull/3540#issuecomment-6666949990
Thanks, 2 and 3 addressed in the last commit.
2. The record is now matched by the class tag `ff ff`, the name length and
"CDib", whatever the schema; all 68 files up to SketchUp 2020 that I checked
use 3, and the javadoc says so. A test also has a stray "CDib" without the
class tag in front of the real one.
3. The PNG is read with `readNBytes` and checked against the declared
length, so a short file declaring 16 MB allocates nothing upfront.
1. I don't have SketchUp, so I can't make a file myself, and the 107 real
ones I checked (SketchUp 3 to 2026, from public GitHub repositories, still all
fine after this change) have no license that would let them into the repo. If
you find redistributable ones in Common Crawl, one per layout would be great.
> Blender and SketchUp: emit the embedded preview
> -----------------------------------------------
>
> Key: TIKA-5036
> URL: https://issues.apache.org/jira/browse/TIKA-5036
> Project: Tika
> Issue Type: Improvement
> Components: mime, parser
> Reporter: Dominik Schmidt
> Priority: Major
>
> {{.blend}} files carry a {{TEST}} block with an RGBA preview, {{.skp}} files
> an embedded PNG. Emitting it as THUMBNAIL gives both a preview.
> Both need media types first, see TIKA-3992. Note that {{.skp}} is registered
> as {{application/vnd.koan}} (SSEYO Koan), which SketchUp files collide with.
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