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TIKA-4511 -- detected compressed bmp #2361

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Merged
tballison merged 1 commit into from
Oct 9, 2025
Merged

TIKA-4511 -- detected compressed bmp #2361

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2 changes: 2 additions & 0 deletions CHANGES.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,8 @@ Release 4.0.0-BETA1 - ???

Release 3.3.0 - ???

* Add detection of compressed bmp (TIKA-4511).

* Allow per file timeouts in tika-pipes (TIKA-4497).

* Add matroska detector (TIKA-1180).
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44 changes: 36 additions & 8 deletions tika-core/src/main/resources/org/apache/tika/mime/tika-mimetypes.xml
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Expand Up @@ -6380,20 +6380,48 @@
<magic priority="50">
<match value="BM" type="string" offset="0">
<match value="0x0100" type="string" offset="26">
<match value="0x0000" type="string" offset="28"/>
<match value="0x0100" type="string" offset="28"/>
<match value="0x0400" type="string" offset="28"/>
<match value="0x0800" type="string" offset="28"/>
<match value="0x1000" type="string" offset="28"/>
<match value="0x1800" type="string" offset="28"/>
<match value="0x2000" type="string" offset="28"/>
<match minShouldMatch="2">
<match minShouldMatch="1">
<match value="0x0000" type="string" offset="28"/>
<match value="0x0100" type="string" offset="28"/>
<match value="0x0400" type="string" offset="28"/>
<match value="0x0800" type="string" offset="28"/>
<match value="0x1000" type="string" offset="28"/>
<match value="0x1800" type="string" offset="28"/>
<match value="0x2000" type="string" offset="28"/>
</match>
<match value="0x00000000" type="string" offset="30"/>
</match>
</match>
</match>
</magic>
<glob pattern="*.bmp"/>
<glob pattern="*.dib"/>
</mime-type>

<mime-type type="image/bmp;format=compressed">
<acronym>BMP</acronym>
<_comment>Windows bitmap compressed</_comment>
<tika:link>http://en.wikipedia.org/wiki/BMP_file_format</tika:link>
<tika:uti>com.microsoft.bmp</tika:uti>
<!-- detection could be based on a non-zero value at offset=30.
current strategy is to determine uncompressed if value is zero
at a lower priority.
-->
<magic priority="45">
<match value="BM" type="string" offset="0">
<match value="0x0100" type="string" offset="26">
<match value="0x0000" type="string" offset="28"/>
<match value="0x0100" type="string" offset="28"/>
<match value="0x0400" type="string" offset="28"/>
<match value="0x0800" type="string" offset="28"/>
<match value="0x1000" type="string" offset="28"/>
<match value="0x1800" type="string" offset="28"/>
<match value="0x2000" type="string" offset="28"/>
</match>
</match>
</magic>
<sub-class-of type="image/bmp"/>
</mime-type>
<mime-type type="image/x-bpg">
<acronym>BPG</acronym>
<_comment>Better Portable Graphics</_comment>
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